update paraformer streaming recipe

haoneng.lhn

2023-03-24 6c3d68927daa4852b663617ba727618975c66e91

update paraformer streaming recipe

 egs_modelscope/asr/paraformer/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online/infer.py

@@ -1,57 +1,37 @@
import os
import logging
import torch
import torchaudio
import soundfile

from modelscope.pipelines import pipeline
from modelscope.utils.constant import Tasks

from modelscope.utils.logger import get_logger
import logging

logger = get_logger(log_level=logging.CRITICAL)
logger.setLevel(logging.CRITICAL)

os.environ["MODELSCOPE_CACHE"] = "./"
inference_pipeline = pipeline(
    task=Tasks.auto_speech_recognition,
    model='damo/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online',
    model_revision='v1.0.2')

waveform, sample_rate = torchaudio.load("waihu.wav")
speech_length = waveform.shape[1]
speech = waveform[0]
model_dir = os.path.join(os.environ["MODELSCOPE_CACHE"], "damo/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online")
speech, sample_rate = soundfile.read(os.path.join(model_dir, "example/asr_example.wav"))
speech_length = speech.shape[0]

cache_en = {"start_idx": 0, "pad_left": 0, "stride": 10, "pad_right": 5, "cif_hidden": None, "cif_alphas": None}
cache_de = {"decode_fsmn": None}
cache = {"encoder": cache_en, "decoder": cache_de}
param_dict = {}
param_dict["cache"] = cache

first_chunk = True
speech_buffer = speech
speech_cache = []
sample_offset = 0
step = 4800  #300ms
param_dict = {"cache": dict(), "is_final": False}
final_result = ""

while len(speech_buffer) >= 960:
    if first_chunk:
        if len(speech_buffer) >= 14400:
            rec_result = inference_pipeline(audio_in=speech_buffer[0:14400], param_dict=param_dict)
            speech_buffer = speech_buffer[4800:]
        else:
            cache_en["stride"] = len(speech_buffer) // 960
            cache_en["pad_right"] = 0
            rec_result = inference_pipeline(audio_in=speech_buffer, param_dict=param_dict)
            speech_buffer = []
        cache_en["start_idx"] = -5
        first_chunk = False
    else:
        cache_en["start_idx"] += 10
        if len(speech_buffer) >= 4800:
            cache_en["pad_left"] = 5
            rec_result = inference_pipeline(audio_in=speech_buffer[:19200], param_dict=param_dict)
            speech_buffer = speech_buffer[9600:]
        else:
            cache_en["stride"] = len(speech_buffer) // 960 
            cache_en["pad_right"] = 0
            rec_result = inference_pipeline(audio_in=speech_buffer, param_dict=param_dict)
            speech_buffer = []
    if len(rec_result) !=0 and rec_result['text'] != "sil":
for sample_offset in range(0, speech_length, min(step, speech_length - sample_offset)):
    if sample_offset + step >= speech_length - 1:
        step = speech_length - sample_offset
        param_dict["is_final"] = True
    rec_result = inference_pipeline(audio_in=speech[sample_offset: sample_offset + step],
                                    param_dict=param_dict)
    if len(rec_result) != 0 and rec_result['text'] != "sil" and rec_result['text'] != "waiting_for_more_voice":
        final_result += rec_result['text']
    print(rec_result)
print(final_result)

 funasr/bin/asr_inference_paraformer_streaming.py

@@ -544,11 +544,6 @@
    )

    export_mode = False
    if param_dict is not None:
        hotword_list_or_file = param_dict.get('hotword')
        export_mode = param_dict.get("export_mode", False)
    else:
        hotword_list_or_file = None

    if ngpu >= 1 and torch.cuda.is_available():
        device = "cuda"
@@ -578,7 +573,6 @@
        ngram_weight=ngram_weight,
        penalty=penalty,
        nbest=nbest,
        hotword_list_or_file=hotword_list_or_file,
    )
    if export_mode:
        speech2text = Speech2TextExport(**speech2text_kwargs)
@@ -594,123 +588,92 @@
            **kwargs,
    ):

        hotword_list_or_file = None
        if param_dict is not None:
            hotword_list_or_file = param_dict.get('hotword')
        if 'hotword' in kwargs:
            hotword_list_or_file = kwargs['hotword']
        if hotword_list_or_file is not None or 'hotword' in kwargs:
            speech2text.hotword_list = speech2text.generate_hotwords_list(hotword_list_or_file)

        # 3. Build data-iterator
        if data_path_and_name_and_type is None and raw_inputs is not None:
            if isinstance(raw_inputs, torch.Tensor):
                raw_inputs = raw_inputs.numpy()
            data_path_and_name_and_type = [raw_inputs, "speech", "waveform"]
        loader = ASRTask.build_streaming_iterator(
            data_path_and_name_and_type,
            dtype=dtype,
            fs=fs,
            batch_size=batch_size,
            key_file=key_file,
            num_workers=num_workers,
            preprocess_fn=ASRTask.build_preprocess_fn(speech2text.asr_train_args, False),
            collate_fn=ASRTask.build_collate_fn(speech2text.asr_train_args, False),
            allow_variable_data_keys=allow_variable_data_keys,
            inference=True,
        )
            if isinstance(raw_inputs, np.ndarray):
                raw_inputs = torch.tensor(raw_inputs)

        if param_dict is not None:
            use_timestamp = param_dict.get('use_timestamp', True)
        else:
            use_timestamp = True

        forward_time_total = 0.0
        length_total = 0.0
        finish_count = 0
        file_count = 1
        cache = None
        is_final = False
        if param_dict is not None and "cache" in param_dict:
            cache = param_dict["cache"]
        if param_dict is not None and "is_final" in param_dict:
            is_final = param_dict["is_final"]
        # 7 .Start for-loop
        # FIXME(kamo): The output format should be discussed about
        asr_result_list = []
        output_path = output_dir_v2 if output_dir_v2 is not None else output_dir
        if output_path is not None:
            writer = DatadirWriter(output_path)
        results = []
        asr_result = ""
        wait = True
        if len(cache) == 0:
            cache["encoder"] = {"start_idx": 0, "pad_left": 0, "stride": 10, "pad_right": 5, "cif_hidden": None, "cif_alphas": None}
            cache_de = {"decode_fsmn": None}
            cache["decoder"] = cache_de
            cache["first_chunk"] = True
            cache["speech"] = []
            cache["chunk_index"] = 0
            cache["speech_chunk"] = []

        if raw_inputs is not None:
            if len(cache["speech"]) == 0:
                cache["speech"] = raw_inputs
        else:
            writer = None
        if param_dict is not None and "cache" in param_dict:
            cache = param_dict["cache"]
        for keys, batch in loader:
            assert isinstance(batch, dict), type(batch)
            assert all(isinstance(s, str) for s in keys), keys
            _bs = len(next(iter(batch.values())))
            assert len(keys) == _bs, f"{len(keys)} != {_bs}"
            # batch = {k: v for k, v in batch.items() if not k.endswith("_lengths")}
            logging.info("decoding, utt_id: {}".format(keys))
            # N-best list of (text, token, token_int, hyp_object)

            time_beg = time.time()
            results = speech2text(cache=cache, **batch)
            if len(results) < 1:
                hyp = Hypothesis(score=0.0, scores={}, states={}, yseq=[])
                results = [[" ", ["sil"], [2], hyp, 10, 6]] * nbest
            time_end = time.time()
            forward_time = time_end - time_beg
            lfr_factor = results[0][-1]
            length = results[0][-2]
            forward_time_total += forward_time
            length_total += length
            rtf_cur = "decoding, feature length: {}, forward_time: {:.4f}, rtf: {:.4f}".format(length, forward_time,
                                                                                               100 * forward_time / (
                                                                                                           length * lfr_factor))
            logging.info(rtf_cur)

            for batch_id in range(_bs):
                result = [results[batch_id][:-2]]

                key = keys[batch_id]
                for n, result in zip(range(1, nbest + 1), result):
                    text, token, token_int, hyp = result[0], result[1], result[2], result[3]
                    time_stamp = None if len(result) < 5 else result[4]
                    # Create a directory: outdir/{n}best_recog
                    if writer is not None:
                        ibest_writer = writer[f"{n}best_recog"]

                        # Write the result to each file
                        ibest_writer["token"][key] = " ".join(token)
                        # ibest_writer["token_int"][key] = " ".join(map(str, token_int))
                        ibest_writer["score"][key] = str(hyp.score)
                        ibest_writer["rtf"][key] = rtf_cur

                    if text is not None:
                        if use_timestamp and time_stamp is not None:
                            postprocessed_result = postprocess_utils.sentence_postprocess(token, time_stamp)
                cache["speech"] = torch.cat([cache["speech"], raw_inputs], dim=0)
            if len(cache["speech_chunk"]) == 0:
                cache["speech_chunk"] = raw_inputs
                        else:
                            postprocessed_result = postprocess_utils.sentence_postprocess(token)
                        time_stamp_postprocessed = ""
                        if len(postprocessed_result) == 3:
                            text_postprocessed, time_stamp_postprocessed, word_lists = postprocessed_result[0], \
                                                                                       postprocessed_result[1], \
                                                                                       postprocessed_result[2]
                cache["speech_chunk"] = torch.cat([cache["speech_chunk"], raw_inputs], dim=0)
            while len(cache["speech_chunk"]) >= 960:
                if cache["first_chunk"]:
                    if len(cache["speech_chunk"]) >= 14400:
                        speech = torch.unsqueeze(cache["speech_chunk"][0:14400], axis=0)
                        speech_length = torch.tensor([14400])
                        results = speech2text(cache, speech, speech_length)
                        cache["speech_chunk"]= cache["speech_chunk"][4800:]
                        cache["first_chunk"] = False
                        cache["encoder"]["start_idx"] = -5
                        wait = False
                        else:
                            text_postprocessed, word_lists = postprocessed_result[0], postprocessed_result[1]
                        item = {'key': key, 'value': text_postprocessed}
                        if time_stamp_postprocessed != "":
                            item['time_stamp'] = time_stamp_postprocessed
                        if is_final:
                            cache["encoder"]["stride"] = len(cache["speech_chunk"]) // 960
                            cache["encoder"]["pad_right"] = 0
                            speech = torch.unsqueeze(cache["speech_chunk"], axis=0)
                            speech_length = torch.tensor([len(cache["speech_chunk"])])
                            results = speech2text(cache, speech, speech_length)
                            cache["speech_chunk"] = []
                            wait = False
                        else:
                            break
                else:
                    if len(cache["speech_chunk"]) >= 19200:
                        cache["encoder"]["start_idx"] += 10
                        cache["encoder"]["pad_left"] = 5
                        speech = torch.unsqueeze(cache["speech_chunk"][:19200], axis=0)
                        speech_length = torch.tensor([19200])
                        results = speech2text(cache, speech, speech_length)
                        cache["speech_chunk"] = cache["speech_chunk"][9600:]
                        wait = False
                    else:
                        if is_final:
                            cache["encoder"]["stride"] = len(cache["speech_chunk"]) // 960
                            cache["encoder"]["pad_right"] = 0
                            speech = torch.unsqueeze(cache["speech_chunk"], axis=0)
                            speech_length = torch.tensor([len(cache["speech_chunk"])])
                            results = speech2text(cache, speech, speech_length)
                            cache["speech_chunk"] = []
                            wait = False
                        else:
                            break
                
                if len(results) >= 1:
                    asr_result += results[0][0]
            if asr_result == "":
                asr_result = "sil"
            if wait:
                asr_result = "waiting_for_more_voice"
            item = {'key': "utt", 'value': asr_result}
                        asr_result_list.append(item)
                        finish_count += 1
                        # asr_utils.print_progress(finish_count / file_count)
                        if writer is not None:
                            ibest_writer["text"][key] = text_postprocessed

                    logging.info("decoding, utt: {}, predictions: {}".format(key, text))
        rtf_avg = "decoding, feature length total: {}, forward_time total: {:.4f}, rtf avg: {:.4f}".format(length_total,
                                                                                                           forward_time_total,
                                                                                                           100 * forward_time_total / (
                                                                                                                       length_total * lfr_factor))
        logging.info(rtf_avg)
        if writer is not None:
            ibest_writer["rtf"]["rtf_avf"] = rtf_avg
        else:
            return []
        return asr_result_list

    return _forward
@@ -905,3 +868,4 @@
    # rec_result = inference_16k_pipline(audio_in='https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav')
    # print(rec_result)