From 2779602177ae5374547c7a7e17de0b11a166326d Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期一, 29 四月 2024 15:08:46 +0800
Subject: [PATCH] Merge branch 'dev_gzf_exp' of github.com:alibaba-damo-academy/FunASR into dev_gzf_exp merge
---
funasr/models/fsmn_vad_streaming/model.py | 897 +++++++++++++++++++++++++++++++++++------------------------
1 files changed, 534 insertions(+), 363 deletions(-)
diff --git a/funasr/models/fsmn_vad_streaming/model.py b/funasr/models/fsmn_vad_streaming/model.py
index e0d104a..04689be 100644
--- a/funasr/models/fsmn_vad_streaming/model.py
+++ b/funasr/models/fsmn_vad_streaming/model.py
@@ -1,17 +1,22 @@
-from enum import Enum
-from typing import List, Tuple, Dict, Any
-import logging
+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
+# MIT License (https://opensource.org/licenses/MIT)
+
import os
import json
+import time
+import math
import torch
from torch import nn
-import math
-from typing import Optional
-import time
+from enum import Enum
+from dataclasses import dataclass
from funasr.register import tables
-from funasr.utils.load_utils import load_audio_text_image_video,extract_fbank
+from typing import List, Tuple, Dict, Any, Optional
+
from funasr.utils.datadir_writer import DatadirWriter
-from torch.nn.utils.rnn import pad_sequence
+from funasr.utils.load_utils import load_audio_text_image_video, extract_fbank
+
class VadStateMachine(Enum):
kVadInStateStartPointNotDetected = 1
@@ -46,38 +51,39 @@
Deep-FSMN for Large Vocabulary Continuous Speech Recognition
https://arxiv.org/abs/1803.05030
"""
+
def __init__(
- self,
- sample_rate: int = 16000,
- detect_mode: int = VadDetectMode.kVadMutipleUtteranceDetectMode.value,
- snr_mode: int = 0,
- max_end_silence_time: int = 800,
- max_start_silence_time: int = 3000,
- do_start_point_detection: bool = True,
- do_end_point_detection: bool = True,
- window_size_ms: int = 200,
- sil_to_speech_time_thres: int = 150,
- speech_to_sil_time_thres: int = 150,
- speech_2_noise_ratio: float = 1.0,
- do_extend: int = 1,
- lookback_time_start_point: int = 200,
- lookahead_time_end_point: int = 100,
- max_single_segment_time: int = 60000,
- nn_eval_block_size: int = 8,
- dcd_block_size: int = 4,
- snr_thres: int = -100.0,
- noise_frame_num_used_for_snr: int = 100,
- decibel_thres: int = -100.0,
- speech_noise_thres: float = 0.6,
- fe_prior_thres: float = 1e-4,
- silence_pdf_num: int = 1,
- sil_pdf_ids: List[int] = [0],
- speech_noise_thresh_low: float = -0.1,
- speech_noise_thresh_high: float = 0.3,
- output_frame_probs: bool = False,
- frame_in_ms: int = 10,
- frame_length_ms: int = 25,
- **kwargs,
+ self,
+ sample_rate: int = 16000,
+ detect_mode: int = VadDetectMode.kVadMutipleUtteranceDetectMode.value,
+ snr_mode: int = 0,
+ max_end_silence_time: int = 800,
+ max_start_silence_time: int = 3000,
+ do_start_point_detection: bool = True,
+ do_end_point_detection: bool = True,
+ window_size_ms: int = 200,
+ sil_to_speech_time_thres: int = 150,
+ speech_to_sil_time_thres: int = 150,
+ speech_2_noise_ratio: float = 1.0,
+ do_extend: int = 1,
+ lookback_time_start_point: int = 200,
+ lookahead_time_end_point: int = 100,
+ max_single_segment_time: int = 60000,
+ nn_eval_block_size: int = 8,
+ dcd_block_size: int = 4,
+ snr_thres: int = -100.0,
+ noise_frame_num_used_for_snr: int = 100,
+ decibel_thres: int = -100.0,
+ speech_noise_thres: float = 0.6,
+ fe_prior_thres: float = 1e-4,
+ silence_pdf_num: int = 1,
+ sil_pdf_ids: List[int] = [0],
+ speech_noise_thresh_low: float = -0.1,
+ speech_noise_thresh_high: float = 0.3,
+ output_frame_probs: bool = False,
+ frame_in_ms: int = 10,
+ frame_length_ms: int = 25,
+ **kwargs,
):
self.sample_rate = sample_rate
self.detect_mode = detect_mode
@@ -116,6 +122,7 @@
Deep-FSMN for Large Vocabulary Continuous Speech Recognition
https://arxiv.org/abs/1803.05030
"""
+
def __init__(self):
self.start_ms = 0
self.end_ms = 0
@@ -139,6 +146,7 @@
Deep-FSMN for Large Vocabulary Continuous Speech Recognition
https://arxiv.org/abs/1803.05030
"""
+
def __init__(self):
self.noise_prob = 0.0
self.speech_prob = 0.0
@@ -153,8 +161,14 @@
Deep-FSMN for Large Vocabulary Continuous Speech Recognition
https://arxiv.org/abs/1803.05030
"""
- def __init__(self, window_size_ms: int, sil_to_speech_time: int,
- speech_to_sil_time: int, frame_size_ms: int):
+
+ def __init__(
+ self,
+ window_size_ms: int,
+ sil_to_speech_time: int,
+ speech_to_sil_time: int,
+ frame_size_ms: int,
+ ):
self.window_size_ms = window_size_ms
self.sil_to_speech_time = sil_to_speech_time
self.speech_to_sil_time = speech_to_sil_time
@@ -187,7 +201,9 @@
def GetWinSize(self) -> int:
return int(self.win_size_frame)
- def DetectOneFrame(self, frameState: FrameState, frame_count: int) -> AudioChangeState:
+ def DetectOneFrame(
+ self, frameState: FrameState, frame_count: int, cache: dict = {}
+ ) -> AudioChangeState:
cur_frame_state = FrameState.kFrameStateSil
if frameState == FrameState.kFrameStateSpeech:
cur_frame_state = 1
@@ -200,11 +216,17 @@
self.win_state[self.cur_win_pos] = cur_frame_state
self.cur_win_pos = (self.cur_win_pos + 1) % self.win_size_frame
- if self.pre_frame_state == FrameState.kFrameStateSil and self.win_sum >= self.sil_to_speech_frmcnt_thres:
+ if (
+ self.pre_frame_state == FrameState.kFrameStateSil
+ and self.win_sum >= self.sil_to_speech_frmcnt_thres
+ ):
self.pre_frame_state = FrameState.kFrameStateSpeech
return AudioChangeState.kChangeStateSil2Speech
- if self.pre_frame_state == FrameState.kFrameStateSpeech and self.win_sum <= self.speech_to_sil_frmcnt_thres:
+ if (
+ self.pre_frame_state == FrameState.kFrameStateSpeech
+ and self.win_sum <= self.speech_to_sil_frmcnt_thres
+ ):
self.pre_frame_state = FrameState.kFrameStateSil
return AudioChangeState.kChangeStateSpeech2Sil
@@ -218,6 +240,42 @@
return int(self.frame_size_ms)
+class Stats(object):
+ def __init__(
+ self,
+ sil_pdf_ids,
+ max_end_sil_frame_cnt_thresh,
+ speech_noise_thres,
+ ):
+ self.data_buf_start_frame = 0
+ self.frm_cnt = 0
+ self.latest_confirmed_speech_frame = 0
+ self.lastest_confirmed_silence_frame = -1
+ self.continous_silence_frame_count = 0
+ self.vad_state_machine = VadStateMachine.kVadInStateStartPointNotDetected
+ self.confirmed_start_frame = -1
+ self.confirmed_end_frame = -1
+ self.number_end_time_detected = 0
+ self.sil_frame = 0
+ self.sil_pdf_ids = sil_pdf_ids
+ self.noise_average_decibel = -100.0
+ self.pre_end_silence_detected = False
+ self.next_seg = True
+
+ self.output_data_buf = []
+ self.output_data_buf_offset = 0
+ self.frame_probs = []
+ self.max_end_sil_frame_cnt_thresh = max_end_sil_frame_cnt_thresh
+ self.speech_noise_thres = speech_noise_thres
+ self.scores = None
+ self.max_time_out = False
+ self.decibel = []
+ self.data_buf = None
+ self.data_buf_all = None
+ self.waveform = None
+ self.last_drop_frames = 0
+
+
@tables.register("model_classes", "FsmnVADStreaming")
class FsmnVADStreaming(nn.Module):
"""
@@ -225,163 +283,141 @@
Deep-FSMN for Large Vocabulary Continuous Speech Recognition
https://arxiv.org/abs/1803.05030
"""
- def __init__(self,
- encoder: str = None,
- encoder_conf: Optional[Dict] = None,
- vad_post_args: Dict[str, Any] = None,
- **kwargs,
- ):
+
+ def __init__(
+ self,
+ encoder: str = None,
+ encoder_conf: Optional[Dict] = None,
+ vad_post_args: Dict[str, Any] = None,
+ **kwargs,
+ ):
super().__init__()
self.vad_opts = VADXOptions(**kwargs)
- self.windows_detector = WindowDetector(self.vad_opts.window_size_ms,
- self.vad_opts.sil_to_speech_time_thres,
- self.vad_opts.speech_to_sil_time_thres,
- self.vad_opts.frame_in_ms)
-
- encoder_class = tables.encoder_classes.get(encoder.lower())
+
+ encoder_class = tables.encoder_classes.get(encoder)
encoder = encoder_class(**encoder_conf)
self.encoder = encoder
- # init variables
- self.data_buf_start_frame = 0
- self.frm_cnt = 0
- self.latest_confirmed_speech_frame = 0
- self.lastest_confirmed_silence_frame = -1
- self.continous_silence_frame_count = 0
- self.vad_state_machine = VadStateMachine.kVadInStateStartPointNotDetected
- self.confirmed_start_frame = -1
- self.confirmed_end_frame = -1
- self.number_end_time_detected = 0
- self.sil_frame = 0
- self.sil_pdf_ids = self.vad_opts.sil_pdf_ids
- self.noise_average_decibel = -100.0
- self.pre_end_silence_detected = False
- self.next_seg = True
+ self.encoder_conf = encoder_conf
- self.output_data_buf = []
- self.output_data_buf_offset = 0
- self.frame_probs = []
- self.max_end_sil_frame_cnt_thresh = self.vad_opts.max_end_silence_time - self.vad_opts.speech_to_sil_time_thres
- self.speech_noise_thres = self.vad_opts.speech_noise_thres
- self.scores = None
- self.max_time_out = False
- self.decibel = []
- self.data_buf = None
- self.data_buf_all = None
- self.waveform = None
- self.last_drop_frames = 0
+ def ResetDetection(self, cache: dict = {}):
+ cache["stats"].continous_silence_frame_count = 0
+ cache["stats"].latest_confirmed_speech_frame = 0
+ cache["stats"].lastest_confirmed_silence_frame = -1
+ cache["stats"].confirmed_start_frame = -1
+ cache["stats"].confirmed_end_frame = -1
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateStartPointNotDetected
+ cache["windows_detector"].Reset()
+ cache["stats"].sil_frame = 0
+ cache["stats"].frame_probs = []
- def AllResetDetection(self):
- self.data_buf_start_frame = 0
- self.frm_cnt = 0
- self.latest_confirmed_speech_frame = 0
- self.lastest_confirmed_silence_frame = -1
- self.continous_silence_frame_count = 0
- self.vad_state_machine = VadStateMachine.kVadInStateStartPointNotDetected
- self.confirmed_start_frame = -1
- self.confirmed_end_frame = -1
- self.number_end_time_detected = 0
- self.sil_frame = 0
- self.sil_pdf_ids = self.vad_opts.sil_pdf_ids
- self.noise_average_decibel = -100.0
- self.pre_end_silence_detected = False
- self.next_seg = True
+ if cache["stats"].output_data_buf:
+ assert cache["stats"].output_data_buf[-1].contain_seg_end_point == True
+ drop_frames = int(cache["stats"].output_data_buf[-1].end_ms / self.vad_opts.frame_in_ms)
+ real_drop_frames = drop_frames - cache["stats"].last_drop_frames
+ cache["stats"].last_drop_frames = drop_frames
+ cache["stats"].data_buf_all = cache["stats"].data_buf_all[
+ real_drop_frames
+ * int(self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000) :
+ ]
+ cache["stats"].decibel = cache["stats"].decibel[real_drop_frames:]
+ cache["stats"].scores = cache["stats"].scores[:, real_drop_frames:, :]
- self.output_data_buf = []
- self.output_data_buf_offset = 0
- self.frame_probs = []
- self.max_end_sil_frame_cnt_thresh = self.vad_opts.max_end_silence_time - self.vad_opts.speech_to_sil_time_thres
- self.speech_noise_thres = self.vad_opts.speech_noise_thres
- self.scores = None
- self.max_time_out = False
- self.decibel = []
- self.data_buf = None
- self.data_buf_all = None
- self.waveform = None
- self.last_drop_frames = 0
- self.windows_detector.Reset()
-
- def ResetDetection(self):
- self.continous_silence_frame_count = 0
- self.latest_confirmed_speech_frame = 0
- self.lastest_confirmed_silence_frame = -1
- self.confirmed_start_frame = -1
- self.confirmed_end_frame = -1
- self.vad_state_machine = VadStateMachine.kVadInStateStartPointNotDetected
- self.windows_detector.Reset()
- self.sil_frame = 0
- self.frame_probs = []
-
- if self.output_data_buf:
- assert self.output_data_buf[-1].contain_seg_end_point == True
- drop_frames = int(self.output_data_buf[-1].end_ms / self.vad_opts.frame_in_ms)
- real_drop_frames = drop_frames - self.last_drop_frames
- self.last_drop_frames = drop_frames
- self.data_buf_all = self.data_buf_all[real_drop_frames * int(self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000):]
- self.decibel = self.decibel[real_drop_frames:]
- self.scores = self.scores[:, real_drop_frames:, :]
-
- def ComputeDecibel(self) -> None:
+ def ComputeDecibel(self, cache: dict = {}) -> None:
frame_sample_length = int(self.vad_opts.frame_length_ms * self.vad_opts.sample_rate / 1000)
frame_shift_length = int(self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000)
- if self.data_buf_all is None:
- self.data_buf_all = self.waveform[0] # self.data_buf is pointed to self.waveform[0]
- self.data_buf = self.data_buf_all
+ if cache["stats"].data_buf_all is None:
+ cache["stats"].data_buf_all = cache["stats"].waveform[
+ 0
+ ] # cache["stats"].data_buf is pointed to cache["stats"].waveform[0]
+ cache["stats"].data_buf = cache["stats"].data_buf_all
else:
- self.data_buf_all = torch.cat((self.data_buf_all, self.waveform[0]))
- for offset in range(0, self.waveform.shape[1] - frame_sample_length + 1, frame_shift_length):
- self.decibel.append(
- 10 * math.log10((self.waveform[0][offset: offset + frame_sample_length]).square().sum() + \
- 0.000001))
+ cache["stats"].data_buf_all = torch.cat(
+ (cache["stats"].data_buf_all, cache["stats"].waveform[0])
+ )
+ for offset in range(
+ 0, cache["stats"].waveform.shape[1] - frame_sample_length + 1, frame_shift_length
+ ):
+ cache["stats"].decibel.append(
+ 10
+ * math.log10(
+ (cache["stats"].waveform[0][offset : offset + frame_sample_length])
+ .square()
+ .sum()
+ + 0.000001
+ )
+ )
- def ComputeScores(self, feats: torch.Tensor, cache: Dict[str, torch.Tensor]) -> None:
- scores = self.encoder(feats, cache).to('cpu') # return B * T * D
- assert scores.shape[1] == feats.shape[1], "The shape between feats and scores does not match"
+ def ComputeScores(self, feats: torch.Tensor, cache: dict = {}) -> None:
+ scores = self.encoder(feats, cache=cache["encoder"]).to("cpu") # return B * T * D
+ assert (
+ scores.shape[1] == feats.shape[1]
+ ), "The shape between feats and scores does not match"
self.vad_opts.nn_eval_block_size = scores.shape[1]
- self.frm_cnt += scores.shape[1] # count total frames
- if self.scores is None:
- self.scores = scores # the first calculation
+ cache["stats"].frm_cnt += scores.shape[1] # count total frames
+ if cache["stats"].scores is None:
+ cache["stats"].scores = scores # the first calculation
else:
- self.scores = torch.cat((self.scores, scores), dim=1)
+ cache["stats"].scores = torch.cat((cache["stats"].scores, scores), dim=1)
- def PopDataBufTillFrame(self, frame_idx: int) -> None: # need check again
- while self.data_buf_start_frame < frame_idx:
- if len(self.data_buf) >= int(self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000):
- self.data_buf_start_frame += 1
- self.data_buf = self.data_buf_all[(self.data_buf_start_frame - self.last_drop_frames) * int(
- self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000):]
+ def PopDataBufTillFrame(self, frame_idx: int, cache: dict = {}) -> None: # need check again
+ while cache["stats"].data_buf_start_frame < frame_idx:
+ if len(cache["stats"].data_buf) >= int(
+ self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000
+ ):
+ cache["stats"].data_buf_start_frame += 1
+ cache["stats"].data_buf = cache["stats"].data_buf_all[
+ (cache["stats"].data_buf_start_frame - cache["stats"].last_drop_frames)
+ * int(self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000) :
+ ]
- def PopDataToOutputBuf(self, start_frm: int, frm_cnt: int, first_frm_is_start_point: bool,
- last_frm_is_end_point: bool, end_point_is_sent_end: bool) -> None:
- self.PopDataBufTillFrame(start_frm)
- expected_sample_number = int(frm_cnt * self.vad_opts.sample_rate * self.vad_opts.frame_in_ms / 1000)
+ def PopDataToOutputBuf(
+ self,
+ start_frm: int,
+ frm_cnt: int,
+ first_frm_is_start_point: bool,
+ last_frm_is_end_point: bool,
+ end_point_is_sent_end: bool,
+ cache: dict = {},
+ ) -> None:
+ self.PopDataBufTillFrame(start_frm, cache=cache)
+ expected_sample_number = int(
+ frm_cnt * self.vad_opts.sample_rate * self.vad_opts.frame_in_ms / 1000
+ )
if last_frm_is_end_point:
- extra_sample = max(0, int(self.vad_opts.frame_length_ms * self.vad_opts.sample_rate / 1000 - \
- self.vad_opts.sample_rate * self.vad_opts.frame_in_ms / 1000))
+ extra_sample = max(
+ 0,
+ int(
+ self.vad_opts.frame_length_ms * self.vad_opts.sample_rate / 1000
+ - self.vad_opts.sample_rate * self.vad_opts.frame_in_ms / 1000
+ ),
+ )
expected_sample_number += int(extra_sample)
if end_point_is_sent_end:
- expected_sample_number = max(expected_sample_number, len(self.data_buf))
- if len(self.data_buf) < expected_sample_number:
- print('error in calling pop data_buf\n')
+ expected_sample_number = max(expected_sample_number, len(cache["stats"].data_buf))
+ if len(cache["stats"].data_buf) < expected_sample_number:
+ print("error in calling pop data_buf\n")
- if len(self.output_data_buf) == 0 or first_frm_is_start_point:
- self.output_data_buf.append(E2EVadSpeechBufWithDoa())
- self.output_data_buf[-1].Reset()
- self.output_data_buf[-1].start_ms = start_frm * self.vad_opts.frame_in_ms
- self.output_data_buf[-1].end_ms = self.output_data_buf[-1].start_ms
- self.output_data_buf[-1].doa = 0
- cur_seg = self.output_data_buf[-1]
+ if len(cache["stats"].output_data_buf) == 0 or first_frm_is_start_point:
+ cache["stats"].output_data_buf.append(E2EVadSpeechBufWithDoa())
+ cache["stats"].output_data_buf[-1].Reset()
+ cache["stats"].output_data_buf[-1].start_ms = start_frm * self.vad_opts.frame_in_ms
+ cache["stats"].output_data_buf[-1].end_ms = cache["stats"].output_data_buf[-1].start_ms
+ cache["stats"].output_data_buf[-1].doa = 0
+ cur_seg = cache["stats"].output_data_buf[-1]
if cur_seg.end_ms != start_frm * self.vad_opts.frame_in_ms:
- print('warning\n')
+ print("warning\n")
out_pos = len(cur_seg.buffer) # cur_seg.buff鐜板湪娌″仛浠讳綍鎿嶄綔
data_to_pop = 0
if end_point_is_sent_end:
data_to_pop = expected_sample_number
else:
- data_to_pop = int(frm_cnt * self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000)
- if data_to_pop > len(self.data_buf):
- print('VAD data_to_pop is bigger than self.data_buf.size()!!!\n')
- data_to_pop = len(self.data_buf)
- expected_sample_number = len(self.data_buf)
+ data_to_pop = int(
+ frm_cnt * self.vad_opts.frame_in_ms * self.vad_opts.sample_rate / 1000
+ )
+ if data_to_pop > len(cache["stats"].data_buf):
+ print('VAD data_to_pop is bigger than cache["stats"].data_buf.size()!!!\n')
+ data_to_pop = len(cache["stats"].data_buf)
+ expected_sample_number = len(cache["stats"].data_buf)
cur_seg.doa = 0
for sample_cpy_out in range(0, data_to_pop):
@@ -391,80 +427,94 @@
# cur_seg.buffer[out_pos++] = data_buf_.back()
out_pos += 1
if cur_seg.end_ms != start_frm * self.vad_opts.frame_in_ms:
- print('Something wrong with the VAD algorithm\n')
- self.data_buf_start_frame += frm_cnt
+ print("Something wrong with the VAD algorithm\n")
+ cache["stats"].data_buf_start_frame += frm_cnt
cur_seg.end_ms = (start_frm + frm_cnt) * self.vad_opts.frame_in_ms
if first_frm_is_start_point:
cur_seg.contain_seg_start_point = True
if last_frm_is_end_point:
cur_seg.contain_seg_end_point = True
- def OnSilenceDetected(self, valid_frame: int):
- self.lastest_confirmed_silence_frame = valid_frame
- if self.vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
- self.PopDataBufTillFrame(valid_frame)
- # silence_detected_callback_
- # pass
+ def OnSilenceDetected(self, valid_frame: int, cache: dict = {}):
+ cache["stats"].lastest_confirmed_silence_frame = valid_frame
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
+ self.PopDataBufTillFrame(valid_frame, cache=cache)
- def OnVoiceDetected(self, valid_frame: int) -> None:
- self.latest_confirmed_speech_frame = valid_frame
- self.PopDataToOutputBuf(valid_frame, 1, False, False, False)
+ # silence_detected_callback_
+ # pass
- def OnVoiceStart(self, start_frame: int, fake_result: bool = False) -> None:
+ def OnVoiceDetected(self, valid_frame: int, cache: dict = {}) -> None:
+ cache["stats"].latest_confirmed_speech_frame = valid_frame
+ self.PopDataToOutputBuf(valid_frame, 1, False, False, False, cache=cache)
+
+ def OnVoiceStart(self, start_frame: int, fake_result: bool = False, cache: dict = {}) -> None:
if self.vad_opts.do_start_point_detection:
pass
- if self.confirmed_start_frame != -1:
- print('not reset vad properly\n')
+ if cache["stats"].confirmed_start_frame != -1:
+ print("not reset vad properly\n")
else:
- self.confirmed_start_frame = start_frame
+ cache["stats"].confirmed_start_frame = start_frame
- if not fake_result and self.vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
- self.PopDataToOutputBuf(self.confirmed_start_frame, 1, True, False, False)
+ if (
+ not fake_result
+ and cache["stats"].vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected
+ ):
+ self.PopDataToOutputBuf(
+ cache["stats"].confirmed_start_frame, 1, True, False, False, cache=cache
+ )
- def OnVoiceEnd(self, end_frame: int, fake_result: bool, is_last_frame: bool) -> None:
- for t in range(self.latest_confirmed_speech_frame + 1, end_frame):
- self.OnVoiceDetected(t)
+ def OnVoiceEnd(
+ self, end_frame: int, fake_result: bool, is_last_frame: bool, cache: dict = {}
+ ) -> None:
+ for t in range(cache["stats"].latest_confirmed_speech_frame + 1, end_frame):
+ self.OnVoiceDetected(t, cache=cache)
if self.vad_opts.do_end_point_detection:
pass
- if self.confirmed_end_frame != -1:
- print('not reset vad properly\n')
+ if cache["stats"].confirmed_end_frame != -1:
+ print("not reset vad properly\n")
else:
- self.confirmed_end_frame = end_frame
+ cache["stats"].confirmed_end_frame = end_frame
if not fake_result:
- self.sil_frame = 0
- self.PopDataToOutputBuf(self.confirmed_end_frame, 1, False, True, is_last_frame)
- self.number_end_time_detected += 1
+ cache["stats"].sil_frame = 0
+ self.PopDataToOutputBuf(
+ cache["stats"].confirmed_end_frame, 1, False, True, is_last_frame, cache=cache
+ )
+ cache["stats"].number_end_time_detected += 1
- def MaybeOnVoiceEndIfLastFrame(self, is_final_frame: bool, cur_frm_idx: int) -> None:
+ def MaybeOnVoiceEndIfLastFrame(
+ self, is_final_frame: bool, cur_frm_idx: int, cache: dict = {}
+ ) -> None:
if is_final_frame:
- self.OnVoiceEnd(cur_frm_idx, False, True)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ self.OnVoiceEnd(cur_frm_idx, False, True, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
- def GetLatency(self) -> int:
- return int(self.LatencyFrmNumAtStartPoint() * self.vad_opts.frame_in_ms)
+ def GetLatency(self, cache: dict = {}) -> int:
+ return int(self.LatencyFrmNumAtStartPoint(cache=cache) * self.vad_opts.frame_in_ms)
- def LatencyFrmNumAtStartPoint(self) -> int:
- vad_latency = self.windows_detector.GetWinSize()
+ def LatencyFrmNumAtStartPoint(self, cache: dict = {}) -> int:
+ vad_latency = cache["windows_detector"].GetWinSize()
if self.vad_opts.do_extend:
vad_latency += int(self.vad_opts.lookback_time_start_point / self.vad_opts.frame_in_ms)
return vad_latency
- def GetFrameState(self, t: int):
+ def GetFrameState(self, t: int, cache: dict = {}):
frame_state = FrameState.kFrameStateInvalid
- cur_decibel = self.decibel[t]
- cur_snr = cur_decibel - self.noise_average_decibel
+ cur_decibel = cache["stats"].decibel[t]
+ cur_snr = cur_decibel - cache["stats"].noise_average_decibel
# for each frame, calc log posterior probability of each state
if cur_decibel < self.vad_opts.decibel_thres:
frame_state = FrameState.kFrameStateSil
- self.DetectOneFrame(frame_state, t, False)
+ self.DetectOneFrame(frame_state, t, False, cache=cache)
return frame_state
sum_score = 0.0
noise_prob = 0.0
- assert len(self.sil_pdf_ids) == self.vad_opts.silence_pdf_num
- if len(self.sil_pdf_ids) > 0:
- assert len(self.scores) == 1 # 鍙敮鎸乥atch_size = 1鐨勬祴璇�
- sil_pdf_scores = [self.scores[0][t][sil_pdf_id] for sil_pdf_id in self.sil_pdf_ids]
+ assert len(cache["stats"].sil_pdf_ids) == self.vad_opts.silence_pdf_num
+ if len(cache["stats"].sil_pdf_ids) > 0:
+ assert len(cache["stats"].scores) == 1 # 鍙敮鎸乥atch_size = 1鐨勬祴璇�
+ sil_pdf_scores = [
+ cache["stats"].scores[0][t][sil_pdf_id] for sil_pdf_id in cache["stats"].sil_pdf_ids
+ ]
sum_score = sum(sil_pdf_scores)
noise_prob = math.log(sum_score) * self.vad_opts.speech_2_noise_ratio
total_score = 1.0
@@ -476,88 +526,163 @@
frame_prob.speech_prob = speech_prob
frame_prob.score = sum_score
frame_prob.frame_id = t
- self.frame_probs.append(frame_prob)
- if math.exp(speech_prob) >= math.exp(noise_prob) + self.speech_noise_thres:
+ cache["stats"].frame_probs.append(frame_prob)
+ if math.exp(speech_prob) >= math.exp(noise_prob) + cache["stats"].speech_noise_thres:
if cur_snr >= self.vad_opts.snr_thres and cur_decibel >= self.vad_opts.decibel_thres:
frame_state = FrameState.kFrameStateSpeech
else:
frame_state = FrameState.kFrameStateSil
else:
frame_state = FrameState.kFrameStateSil
- if self.noise_average_decibel < -99.9:
- self.noise_average_decibel = cur_decibel
+ if cache["stats"].noise_average_decibel < -99.9:
+ cache["stats"].noise_average_decibel = cur_decibel
else:
- self.noise_average_decibel = (cur_decibel + self.noise_average_decibel * (
- self.vad_opts.noise_frame_num_used_for_snr
- - 1)) / self.vad_opts.noise_frame_num_used_for_snr
+ cache["stats"].noise_average_decibel = (
+ cur_decibel
+ + cache["stats"].noise_average_decibel
+ * (self.vad_opts.noise_frame_num_used_for_snr - 1)
+ ) / self.vad_opts.noise_frame_num_used_for_snr
return frame_state
- def forward(self, feats: torch.Tensor, waveform: torch.tensor, cache: Dict[str, torch.Tensor] = dict(),
- is_final: bool = False
- ):
- if len(cache) == 0:
- self.AllResetDetection()
- self.waveform = waveform # compute decibel for each frame
- self.ComputeDecibel()
- self.ComputeScores(feats, cache)
+ def forward(
+ self,
+ feats: torch.Tensor,
+ waveform: torch.tensor,
+ cache: dict = {},
+ is_final: bool = False,
+ **kwargs,
+ ):
+ # if len(cache) == 0:
+ # self.AllResetDetection()
+ # self.waveform = waveform # compute decibel for each frame
+ cache["stats"].waveform = waveform
+ is_streaming_input = kwargs.get("is_streaming_input", True)
+ self.ComputeDecibel(cache=cache)
+ self.ComputeScores(feats, cache=cache)
if not is_final:
- self.DetectCommonFrames()
+ self.DetectCommonFrames(cache=cache)
else:
- self.DetectLastFrames()
+ self.DetectLastFrames(cache=cache)
segments = []
for batch_num in range(0, feats.shape[0]): # only support batch_size = 1 now
segment_batch = []
- if len(self.output_data_buf) > 0:
- for i in range(self.output_data_buf_offset, len(self.output_data_buf)):
- if not is_final and (not self.output_data_buf[i].contain_seg_start_point or not self.output_data_buf[
- i].contain_seg_end_point):
- continue
- segment = [self.output_data_buf[i].start_ms, self.output_data_buf[i].end_ms]
+ if len(cache["stats"].output_data_buf) > 0:
+ for i in range(
+ cache["stats"].output_data_buf_offset, len(cache["stats"].output_data_buf)
+ ):
+ if (
+ is_streaming_input
+ ): # in this case, return [beg, -1], [], [-1, end], [beg, end]
+ if not cache["stats"].output_data_buf[i].contain_seg_start_point:
+ continue
+ if (
+ not cache["stats"].next_seg
+ and not cache["stats"].output_data_buf[i].contain_seg_end_point
+ ):
+ continue
+ start_ms = (
+ cache["stats"].output_data_buf[i].start_ms
+ if cache["stats"].next_seg
+ else -1
+ )
+ if cache["stats"].output_data_buf[i].contain_seg_end_point:
+ end_ms = cache["stats"].output_data_buf[i].end_ms
+ cache["stats"].next_seg = True
+ cache["stats"].output_data_buf_offset += 1
+ else:
+ end_ms = -1
+ cache["stats"].next_seg = False
+ segment = [start_ms, end_ms]
+
+ else: # in this case, return [beg, end]
+
+ if not is_final and (
+ not cache["stats"].output_data_buf[i].contain_seg_start_point
+ or not cache["stats"].output_data_buf[i].contain_seg_end_point
+ ):
+ continue
+ segment = [
+ cache["stats"].output_data_buf[i].start_ms,
+ cache["stats"].output_data_buf[i].end_ms,
+ ]
+ cache["stats"].output_data_buf_offset += 1 # need update this parameter
+
segment_batch.append(segment)
- self.output_data_buf_offset += 1 # need update this parameter
+
if segment_batch:
segments.append(segment_batch)
- if is_final:
- # reset class variables and clear the dict for the next query
- self.AllResetDetection()
+ # if is_final:
+ # # reset class variables and clear the dict for the next query
+ # self.AllResetDetection()
return segments
def init_cache(self, cache: dict = {}, **kwargs):
+
cache["frontend"] = {}
cache["prev_samples"] = torch.empty(0)
cache["encoder"] = {}
-
+
+ if kwargs.get("max_end_silence_time") is not None:
+ # update the max_end_silence_time
+ self.vad_opts.max_end_silence_time = kwargs.get("max_end_silence_time")
+
+ windows_detector = WindowDetector(
+ self.vad_opts.window_size_ms,
+ self.vad_opts.sil_to_speech_time_thres,
+ self.vad_opts.speech_to_sil_time_thres,
+ self.vad_opts.frame_in_ms,
+ )
+ windows_detector.Reset()
+
+ stats = Stats(
+ sil_pdf_ids=self.vad_opts.sil_pdf_ids,
+ max_end_sil_frame_cnt_thresh=self.vad_opts.max_end_silence_time
+ - self.vad_opts.speech_to_sil_time_thres,
+ speech_noise_thres=self.vad_opts.speech_noise_thres,
+ )
+ cache["windows_detector"] = windows_detector
+ cache["stats"] = stats
return cache
-
- def generate(self,
- data_in,
- data_lengths=None,
- key: list = None,
- tokenizer=None,
- frontend=None,
- cache: dict = {},
- **kwargs,
- ):
-
+
+ def inference(
+ self,
+ data_in,
+ data_lengths=None,
+ key: list = None,
+ tokenizer=None,
+ frontend=None,
+ cache: dict = {},
+ **kwargs,
+ ):
+
if len(cache) == 0:
self.init_cache(cache, **kwargs)
meta_data = {}
- chunk_size = kwargs.get("chunk_size", 50) # 50ms
+ chunk_size = kwargs.get("chunk_size", 60000) # 50ms
chunk_stride_samples = int(chunk_size * frontend.fs / 1000)
time1 = time.perf_counter()
- cfg = {"is_final": kwargs.get("is_final", False)}
- audio_sample_list = load_audio_text_image_video(data_in,
- fs=frontend.fs,
- audio_fs=kwargs.get("fs", 16000),
- data_type=kwargs.get("data_type", "sound"),
- tokenizer=tokenizer,
- cache=cfg,
- )
+ is_streaming_input = (
+ kwargs.get("is_streaming_input", False)
+ if chunk_size >= 15000
+ else kwargs.get("is_streaming_input", True)
+ )
+ is_final = (
+ kwargs.get("is_final", False) if is_streaming_input else kwargs.get("is_final", True)
+ )
+ cfg = {"is_final": is_final, "is_streaming_input": is_streaming_input}
+ audio_sample_list = load_audio_text_image_video(
+ data_in,
+ fs=frontend.fs,
+ audio_fs=kwargs.get("fs", 16000),
+ data_type=kwargs.get("data_type", "sound"),
+ tokenizer=tokenizer,
+ cache=cfg,
+ )
_is_final = cfg["is_final"] # if data_in is a file or url, set is_final=True
-
+ is_streaming_input = cfg["is_streaming_input"]
time2 = time.perf_counter()
meta_data["load_data"] = f"{time2 - time1:0.3f}"
assert len(audio_sample_list) == 1, "batch_size must be set 1"
@@ -569,74 +694,94 @@
segments = []
for i in range(n):
kwargs["is_final"] = _is_final and i == n - 1
- audio_sample_i = audio_sample[i * chunk_stride_samples:(i + 1) * chunk_stride_samples]
-
+ audio_sample_i = audio_sample[i * chunk_stride_samples : (i + 1) * chunk_stride_samples]
+
# extract fbank feats
- speech, speech_lengths = extract_fbank([audio_sample_i], data_type=kwargs.get("data_type", "sound"),
- frontend=frontend, cache=cache["frontend"],
- is_final=kwargs["is_final"])
+ speech, speech_lengths = extract_fbank(
+ [audio_sample_i],
+ data_type=kwargs.get("data_type", "sound"),
+ frontend=frontend,
+ cache=cache["frontend"],
+ is_final=kwargs["is_final"],
+ )
time3 = time.perf_counter()
meta_data["extract_feat"] = f"{time3 - time2:0.3f}"
- meta_data["batch_data_time"] = speech_lengths.sum().item() * frontend.frame_shift * frontend.lfr_n / 1000
- speech.to(device=kwargs["device"]), speech_lengths.to(device=kwargs["device"])
-
+ meta_data["batch_data_time"] = (
+ speech_lengths.sum().item() * frontend.frame_shift * frontend.lfr_n / 1000
+ )
+ speech = speech.to(device=kwargs["device"])
+ speech_lengths = speech_lengths.to(device=kwargs["device"])
+
batch = {
"feats": speech,
"waveform": cache["frontend"]["waveforms"],
"is_final": kwargs["is_final"],
- "cache": cache["encoder"]
+ "cache": cache,
+ "is_streaming_input": is_streaming_input,
}
segments_i = self.forward(**batch)
- segments.extend(segments_i)
-
+ if len(segments_i) > 0:
+ segments.extend(*segments_i)
cache["prev_samples"] = audio_sample[:-m]
if _is_final:
- self.init_cache(cache, **kwargs)
+ self.init_cache(cache)
ibest_writer = None
- if ibest_writer is None and kwargs.get("output_dir") is not None:
- writer = DatadirWriter(kwargs.get("output_dir"))
- ibest_writer = writer[f"{1}best_recog"]
+ if kwargs.get("output_dir") is not None:
+ if not hasattr(self, "writer"):
+ self.writer = DatadirWriter(kwargs.get("output_dir"))
+ ibest_writer = self.writer[f"{1}best_recog"]
results = []
result_i = {"key": key[0], "value": segments}
- if "MODELSCOPE_ENVIRONMENT" in os.environ and os.environ["MODELSCOPE_ENVIRONMENT"] == "eas":
- result_i = json.dumps(result_i)
+ # if "MODELSCOPE_ENVIRONMENT" in os.environ and os.environ["MODELSCOPE_ENVIRONMENT"] == "eas":
+ # result_i = json.dumps(result_i)
results.append(result_i)
-
+
if ibest_writer is not None:
ibest_writer["text"][key[0]] = segments
-
return results, meta_data
+ def export(self, **kwargs):
- def DetectCommonFrames(self) -> int:
- if self.vad_state_machine == VadStateMachine.kVadInStateEndPointDetected:
+ from .export_meta import export_rebuild_model
+
+ models = export_rebuild_model(model=self, **kwargs)
+ return models
+
+ def DetectCommonFrames(self, cache: dict = {}) -> int:
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateEndPointDetected:
return 0
for i in range(self.vad_opts.nn_eval_block_size - 1, -1, -1):
frame_state = FrameState.kFrameStateInvalid
- frame_state = self.GetFrameState(self.frm_cnt - 1 - i - self.last_drop_frames)
- self.DetectOneFrame(frame_state, self.frm_cnt - 1 - i, False)
+ frame_state = self.GetFrameState(
+ cache["stats"].frm_cnt - 1 - i - cache["stats"].last_drop_frames, cache=cache
+ )
+ self.DetectOneFrame(frame_state, cache["stats"].frm_cnt - 1 - i, False, cache=cache)
return 0
- def DetectLastFrames(self) -> int:
- if self.vad_state_machine == VadStateMachine.kVadInStateEndPointDetected:
+ def DetectLastFrames(self, cache: dict = {}) -> int:
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateEndPointDetected:
return 0
for i in range(self.vad_opts.nn_eval_block_size - 1, -1, -1):
frame_state = FrameState.kFrameStateInvalid
- frame_state = self.GetFrameState(self.frm_cnt - 1 - i - self.last_drop_frames)
+ frame_state = self.GetFrameState(
+ cache["stats"].frm_cnt - 1 - i - cache["stats"].last_drop_frames, cache=cache
+ )
if i != 0:
- self.DetectOneFrame(frame_state, self.frm_cnt - 1 - i, False)
+ self.DetectOneFrame(frame_state, cache["stats"].frm_cnt - 1 - i, False, cache=cache)
else:
- self.DetectOneFrame(frame_state, self.frm_cnt - 1, True)
+ self.DetectOneFrame(frame_state, cache["stats"].frm_cnt - 1, True, cache=cache)
return 0
- def DetectOneFrame(self, cur_frm_state: FrameState, cur_frm_idx: int, is_final_frame: bool) -> None:
+ def DetectOneFrame(
+ self, cur_frm_state: FrameState, cur_frm_idx: int, is_final_frame: bool, cache: dict = {}
+ ) -> None:
tmp_cur_frm_state = FrameState.kFrameStateInvalid
if cur_frm_state == FrameState.kFrameStateSpeech:
if math.fabs(1.0) > self.vad_opts.fe_prior_thres:
@@ -645,101 +790,127 @@
tmp_cur_frm_state = FrameState.kFrameStateSil
elif cur_frm_state == FrameState.kFrameStateSil:
tmp_cur_frm_state = FrameState.kFrameStateSil
- state_change = self.windows_detector.DetectOneFrame(tmp_cur_frm_state, cur_frm_idx)
+ state_change = cache["windows_detector"].DetectOneFrame(
+ tmp_cur_frm_state, cur_frm_idx, cache=cache
+ )
frm_shift_in_ms = self.vad_opts.frame_in_ms
if AudioChangeState.kChangeStateSil2Speech == state_change:
- silence_frame_count = self.continous_silence_frame_count
- self.continous_silence_frame_count = 0
- self.pre_end_silence_detected = False
+ silence_frame_count = cache["stats"].continous_silence_frame_count
+ cache["stats"].continous_silence_frame_count = 0
+ cache["stats"].pre_end_silence_detected = False
start_frame = 0
- if self.vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
- start_frame = max(self.data_buf_start_frame, cur_frm_idx - self.LatencyFrmNumAtStartPoint())
- self.OnVoiceStart(start_frame)
- self.vad_state_machine = VadStateMachine.kVadInStateInSpeechSegment
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
+ start_frame = max(
+ cache["stats"].data_buf_start_frame,
+ cur_frm_idx - self.LatencyFrmNumAtStartPoint(cache=cache),
+ )
+ self.OnVoiceStart(start_frame, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateInSpeechSegment
for t in range(start_frame + 1, cur_frm_idx + 1):
- self.OnVoiceDetected(t)
- elif self.vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
- for t in range(self.latest_confirmed_speech_frame + 1, cur_frm_idx):
- self.OnVoiceDetected(t)
- if cur_frm_idx - self.confirmed_start_frame + 1 > \
- self.vad_opts.max_single_segment_time / frm_shift_in_ms:
- self.OnVoiceEnd(cur_frm_idx, False, False)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ self.OnVoiceDetected(t, cache=cache)
+ elif cache["stats"].vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
+ for t in range(cache["stats"].latest_confirmed_speech_frame + 1, cur_frm_idx):
+ self.OnVoiceDetected(t, cache=cache)
+ if (
+ cur_frm_idx - cache["stats"].confirmed_start_frame + 1
+ > self.vad_opts.max_single_segment_time / frm_shift_in_ms
+ ):
+ self.OnVoiceEnd(cur_frm_idx, False, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
elif not is_final_frame:
- self.OnVoiceDetected(cur_frm_idx)
+ self.OnVoiceDetected(cur_frm_idx, cache=cache)
else:
- self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx)
+ self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx, cache=cache)
else:
pass
elif AudioChangeState.kChangeStateSpeech2Sil == state_change:
- self.continous_silence_frame_count = 0
- if self.vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
+ cache["stats"].continous_silence_frame_count = 0
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
pass
- elif self.vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
- if cur_frm_idx - self.confirmed_start_frame + 1 > \
- self.vad_opts.max_single_segment_time / frm_shift_in_ms:
- self.OnVoiceEnd(cur_frm_idx, False, False)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ elif cache["stats"].vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
+ if (
+ cur_frm_idx - cache["stats"].confirmed_start_frame + 1
+ > self.vad_opts.max_single_segment_time / frm_shift_in_ms
+ ):
+ self.OnVoiceEnd(cur_frm_idx, False, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
elif not is_final_frame:
- self.OnVoiceDetected(cur_frm_idx)
+ self.OnVoiceDetected(cur_frm_idx, cache=cache)
else:
- self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx)
+ self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx, cache=cache)
else:
pass
elif AudioChangeState.kChangeStateSpeech2Speech == state_change:
- self.continous_silence_frame_count = 0
- if self.vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
- if cur_frm_idx - self.confirmed_start_frame + 1 > \
- self.vad_opts.max_single_segment_time / frm_shift_in_ms:
- self.max_time_out = True
- self.OnVoiceEnd(cur_frm_idx, False, False)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ cache["stats"].continous_silence_frame_count = 0
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
+ if (
+ cur_frm_idx - cache["stats"].confirmed_start_frame + 1
+ > self.vad_opts.max_single_segment_time / frm_shift_in_ms
+ ):
+ cache["stats"].max_time_out = True
+ self.OnVoiceEnd(cur_frm_idx, False, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
elif not is_final_frame:
- self.OnVoiceDetected(cur_frm_idx)
+ self.OnVoiceDetected(cur_frm_idx, cache=cache)
else:
- self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx)
+ self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx, cache=cache)
else:
pass
elif AudioChangeState.kChangeStateSil2Sil == state_change:
- self.continous_silence_frame_count += 1
- if self.vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
+ cache["stats"].continous_silence_frame_count += 1
+ if cache["stats"].vad_state_machine == VadStateMachine.kVadInStateStartPointNotDetected:
# silence timeout, return zero length decision
- if ((self.vad_opts.detect_mode == VadDetectMode.kVadSingleUtteranceDetectMode.value) and (
- self.continous_silence_frame_count * frm_shift_in_ms > self.vad_opts.max_start_silence_time)) \
- or (is_final_frame and self.number_end_time_detected == 0):
- for t in range(self.lastest_confirmed_silence_frame + 1, cur_frm_idx):
- self.OnSilenceDetected(t)
- self.OnVoiceStart(0, True)
- self.OnVoiceEnd(0, True, False);
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ if (
+ (self.vad_opts.detect_mode == VadDetectMode.kVadSingleUtteranceDetectMode.value)
+ and (
+ cache["stats"].continous_silence_frame_count * frm_shift_in_ms
+ > self.vad_opts.max_start_silence_time
+ )
+ ) or (is_final_frame and cache["stats"].number_end_time_detected == 0):
+ for t in range(cache["stats"].lastest_confirmed_silence_frame + 1, cur_frm_idx):
+ self.OnSilenceDetected(t, cache=cache)
+ self.OnVoiceStart(0, True, cache=cache)
+ self.OnVoiceEnd(0, True, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
else:
- if cur_frm_idx >= self.LatencyFrmNumAtStartPoint():
- self.OnSilenceDetected(cur_frm_idx - self.LatencyFrmNumAtStartPoint())
- elif self.vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
- if self.continous_silence_frame_count * frm_shift_in_ms >= self.max_end_sil_frame_cnt_thresh:
- lookback_frame = int(self.max_end_sil_frame_cnt_thresh / frm_shift_in_ms)
+ if cur_frm_idx >= self.LatencyFrmNumAtStartPoint(cache=cache):
+ self.OnSilenceDetected(
+ cur_frm_idx - self.LatencyFrmNumAtStartPoint(cache=cache), cache=cache
+ )
+ elif cache["stats"].vad_state_machine == VadStateMachine.kVadInStateInSpeechSegment:
+ if (
+ cache["stats"].continous_silence_frame_count * frm_shift_in_ms
+ >= cache["stats"].max_end_sil_frame_cnt_thresh
+ ):
+ lookback_frame = int(
+ cache["stats"].max_end_sil_frame_cnt_thresh / frm_shift_in_ms
+ )
if self.vad_opts.do_extend:
- lookback_frame -= int(self.vad_opts.lookahead_time_end_point / frm_shift_in_ms)
+ lookback_frame -= int(
+ self.vad_opts.lookahead_time_end_point / frm_shift_in_ms
+ )
lookback_frame -= 1
lookback_frame = max(0, lookback_frame)
- self.OnVoiceEnd(cur_frm_idx - lookback_frame, False, False)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
- elif cur_frm_idx - self.confirmed_start_frame + 1 > \
- self.vad_opts.max_single_segment_time / frm_shift_in_ms:
- self.OnVoiceEnd(cur_frm_idx, False, False)
- self.vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ self.OnVoiceEnd(cur_frm_idx - lookback_frame, False, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
+ elif (
+ cur_frm_idx - cache["stats"].confirmed_start_frame + 1
+ > self.vad_opts.max_single_segment_time / frm_shift_in_ms
+ ):
+ self.OnVoiceEnd(cur_frm_idx, False, False, cache=cache)
+ cache["stats"].vad_state_machine = VadStateMachine.kVadInStateEndPointDetected
elif self.vad_opts.do_extend and not is_final_frame:
- if self.continous_silence_frame_count <= int(
- self.vad_opts.lookahead_time_end_point / frm_shift_in_ms):
- self.OnVoiceDetected(cur_frm_idx)
+ if cache["stats"].continous_silence_frame_count <= int(
+ self.vad_opts.lookahead_time_end_point / frm_shift_in_ms
+ ):
+ self.OnVoiceDetected(cur_frm_idx, cache=cache)
else:
- self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx)
+ self.MaybeOnVoiceEndIfLastFrame(is_final_frame, cur_frm_idx, cache=cache)
else:
pass
- if self.vad_state_machine == VadStateMachine.kVadInStateEndPointDetected and \
- self.vad_opts.detect_mode == VadDetectMode.kVadMutipleUtteranceDetectMode.value:
- self.ResetDetection()
-
-
-
+ if (
+ cache["stats"].vad_state_machine == VadStateMachine.kVadInStateEndPointDetected
+ and self.vad_opts.detect_mode == VadDetectMode.kVadMutipleUtteranceDetectMode.value
+ ):
+ self.ResetDetection(cache=cache)
--
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