| | |
| | | import torch |
| | | import random |
| | | import numpy as np |
| | | from typeguard import check_argument_types |
| | | |
| | | from funasr.layers.abs_normalize import AbsNormalize |
| | | from funasr.losses.label_smoothing_loss import ( |
| | |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | use_1st_decoder_loss: bool = False, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | |
| | | self.predictor_bias = predictor_bias |
| | | self.sampling_ratio = sampling_ratio |
| | | self.criterion_pre = mae_loss(normalize_length=length_normalized_loss) |
| | | self.length_normalized_loss = length_normalized_loss |
| | | self.step_cur = 0 |
| | | |
| | | self.share_embedding = share_embedding |
| | |
| | | loss = self.ctc_weight * loss_ctc + (1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight |
| | | |
| | | if self.use_1st_decoder_loss and pre_loss_att is not None: |
| | | loss = loss + pre_loss_att |
| | | loss = loss + (1 - self.ctc_weight) * pre_loss_att |
| | | |
| | | # Collect Attn branch stats |
| | | stats["loss_att"] = loss_att.detach() if loss_att is not None else None |
| | |
| | | stats["loss"] = torch.clone(loss.detach()) |
| | | |
| | | # force_gatherable: to-device and to-tensor if scalar for DataParallel |
| | | if self.length_normalized_loss: |
| | | batch_size = int((text_lengths + self.predictor_bias).sum()) |
| | | loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device) |
| | | return loss, stats, weight |
| | | |
| | |
| | | |
| | | def encode( |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor, ind: int = 0, |
| | | ) -> Tuple[Tuple[Any, Optional[Any]], Any]: |
| | | ) -> Tuple[torch.Tensor, torch.Tensor]: |
| | | """Frontend + Encoder. Note that this method is used by asr_inference.py |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | |
| | | |
| | | encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to( |
| | | encoder_out.device) |
| | | pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index = self.predictor(encoder_out, None, encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index = self.predictor(encoder_out, None, |
| | | encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | return pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index |
| | | |
| | | def cal_decoder_with_predictor(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens): |
| | |
| | | if self.step_cur < 2: |
| | | logging.info("enable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio)) |
| | | if self.use_1st_decoder_loss: |
| | | sematic_embeds, decoder_out_1st, pre_loss_att = self.sampler_with_grad(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | | sematic_embeds, decoder_out_1st, pre_loss_att = self.sampler_with_grad(encoder_out, encoder_out_lens, |
| | | ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | | else: |
| | | sematic_embeds, decoder_out_1st = self.sampler(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | use_1st_decoder_loss: bool = False, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | | super().__init__() |
| | | super().__init__( |
| | | vocab_size=vocab_size, |
| | | token_list=token_list, |
| | | frontend=frontend, |
| | | specaug=specaug, |
| | | normalize=normalize, |
| | | preencoder=preencoder, |
| | | encoder=encoder, |
| | | postencoder=postencoder, |
| | | decoder=decoder, |
| | | ctc=ctc, |
| | | ctc_weight=ctc_weight, |
| | | interctc_weight=interctc_weight, |
| | | ignore_id=ignore_id, |
| | | blank_id=blank_id, |
| | | sos=sos, |
| | | eos=eos, |
| | | lsm_weight=lsm_weight, |
| | | length_normalized_loss=length_normalized_loss, |
| | | report_cer=report_cer, |
| | | report_wer=report_wer, |
| | | sym_space=sym_space, |
| | | sym_blank=sym_blank, |
| | | extract_feats_in_collect_stats=extract_feats_in_collect_stats, |
| | | predictor=predictor, |
| | | predictor_weight=predictor_weight, |
| | | predictor_bias=predictor_bias, |
| | | sampling_ratio=sampling_ratio, |
| | | ) |
| | | # note that eos is the same as sos (equivalent ID) |
| | | self.blank_id = blank_id |
| | | self.sos = vocab_size - 1 if sos is None else sos |
| | |
| | | self.predictor = predictor |
| | | self.predictor_weight = predictor_weight |
| | | self.predictor_bias = predictor_bias |
| | | self.length_normalized_loss = length_normalized_loss |
| | | self.sampling_ratio = sampling_ratio |
| | | self.criterion_pre = mae_loss(normalize_length=length_normalized_loss) |
| | | self.step_cur = 0 |
| | | self.scama_mask = None |
| | | if hasattr(self.encoder, "overlap_chunk_cls") and self.encoder.overlap_chunk_cls is not None: |
| | | from funasr.modules.streaming_utils.chunk_utilis import build_scama_mask_for_cross_attention_decoder |
| | | self.build_scama_mask_for_cross_attention_decoder_fn = build_scama_mask_for_cross_attention_decoder |
| | |
| | | stats["loss"] = torch.clone(loss.detach()) |
| | | |
| | | # force_gatherable: to-device and to-tensor if scalar for DataParallel |
| | | if self.length_normalized_loss: |
| | | batch_size = int((text_lengths + self.predictor_bias).sum()) |
| | | loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device) |
| | | return loss, stats, weight |
| | | |
| | | def encode( |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor, ind: int = 0, |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor, ind: int = 0, |
| | | ) -> Tuple[torch.Tensor, torch.Tensor]: |
| | | """Frontend + Encoder. Note that this method is used by asr_inference.py |
| | | Args: |
| | |
| | | return encoder_out, torch.tensor([encoder_out.size(1)]) |
| | | |
| | | def _calc_att_predictor_loss( |
| | | self, |
| | | encoder_out: torch.Tensor, |
| | | encoder_out_lens: torch.Tensor, |
| | | ys_pad: torch.Tensor, |
| | | ys_pad_lens: torch.Tensor, |
| | | self, |
| | | encoder_out: torch.Tensor, |
| | | encoder_out_lens: torch.Tensor, |
| | | ys_pad: torch.Tensor, |
| | | ys_pad_lens: torch.Tensor, |
| | | ): |
| | | encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to( |
| | | encoder_out.device) |
| | |
| | | attention_chunk_center_bias = 0 |
| | | attention_chunk_size = encoder_chunk_size |
| | | decoder_att_look_back_factor = self.encoder.overlap_chunk_cls.decoder_att_look_back_factor_cur |
| | | mask_shift_att_chunk_decoder = self.encoder.overlap_chunk_cls.\ |
| | | mask_shift_att_chunk_decoder = self.encoder.overlap_chunk_cls. \ |
| | | get_mask_shift_att_chunk_decoder(None, |
| | | device=encoder_out.device, |
| | | batch_size=encoder_out.size(0) |
| | |
| | | input_mask_expand_dim, 0) |
| | | return sematic_embeds * tgt_mask, decoder_out * tgt_mask |
| | | |
| | | def sampler_with_grad(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds, chunk_mask=None): |
| | | def sampler_with_grad(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds, |
| | | chunk_mask=None): |
| | | tgt_mask = (~make_pad_mask(ys_pad_lens, maxlen=ys_pad_lens.max())[:, :, None]).to(ys_pad.device) |
| | | ys_pad_masked = ys_pad * tgt_mask[:, :, 0] |
| | | if self.share_embedding: |
| | |
| | | |
| | | return sematic_embeds * tgt_mask, decoder_out * tgt_mask, pre_loss_att |
| | | |
| | | def calc_predictor(self, encoder_out, encoder_out_lens): |
| | | |
| | | encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to( |
| | | encoder_out.device) |
| | | mask_chunk_predictor = None |
| | | if self.encoder.overlap_chunk_cls is not None: |
| | | mask_chunk_predictor = self.encoder.overlap_chunk_cls.get_mask_chunk_predictor(None, |
| | | device=encoder_out.device, |
| | | batch_size=encoder_out.size( |
| | | 0)) |
| | | mask_shfit_chunk = self.encoder.overlap_chunk_cls.get_mask_shfit_chunk(None, device=encoder_out.device, |
| | | batch_size=encoder_out.size(0)) |
| | | encoder_out = encoder_out * mask_shfit_chunk |
| | | pre_acoustic_embeds, pre_token_length, pre_alphas, pre_peak_index = self.predictor(encoder_out, |
| | | None, |
| | | encoder_out_mask, |
| | | ignore_id=self.ignore_id, |
| | | mask_chunk_predictor=mask_chunk_predictor, |
| | | target_label_length=None, |
| | | ) |
| | | predictor_alignments, predictor_alignments_len = self.predictor.gen_frame_alignments(pre_alphas, |
| | | encoder_out_lens + 1 if self.predictor.tail_threshold > 0.0 else encoder_out_lens) |
| | | |
| | | scama_mask = None |
| | | if self.encoder.overlap_chunk_cls is not None and self.decoder_attention_chunk_type == 'chunk': |
| | | encoder_chunk_size = self.encoder.overlap_chunk_cls.chunk_size_pad_shift_cur |
| | | attention_chunk_center_bias = 0 |
| | | attention_chunk_size = encoder_chunk_size |
| | | decoder_att_look_back_factor = self.encoder.overlap_chunk_cls.decoder_att_look_back_factor_cur |
| | | mask_shift_att_chunk_decoder = self.encoder.overlap_chunk_cls. \ |
| | | get_mask_shift_att_chunk_decoder(None, |
| | | device=encoder_out.device, |
| | | batch_size=encoder_out.size(0) |
| | | ) |
| | | scama_mask = self.build_scama_mask_for_cross_attention_decoder_fn( |
| | | predictor_alignments=predictor_alignments, |
| | | encoder_sequence_length=encoder_out_lens, |
| | | chunk_size=1, |
| | | encoder_chunk_size=encoder_chunk_size, |
| | | attention_chunk_center_bias=attention_chunk_center_bias, |
| | | attention_chunk_size=attention_chunk_size, |
| | | attention_chunk_type=self.decoder_attention_chunk_type, |
| | | step=None, |
| | | predictor_mask_chunk_hopping=mask_chunk_predictor, |
| | | decoder_att_look_back_factor=decoder_att_look_back_factor, |
| | | mask_shift_att_chunk_decoder=mask_shift_att_chunk_decoder, |
| | | target_length=None, |
| | | is_training=self.training, |
| | | ) |
| | | self.scama_mask = scama_mask |
| | | |
| | | return pre_acoustic_embeds, pre_token_length, pre_alphas, pre_peak_index |
| | | |
| | | def calc_predictor_chunk(self, encoder_out, cache=None): |
| | | |
| | | pre_acoustic_embeds, pre_token_length = \ |
| | | self.predictor.forward_chunk(encoder_out, cache["encoder"]) |
| | | return pre_acoustic_embeds, pre_token_length |
| | | |
| | | def cal_decoder_with_predictor(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens): |
| | | decoder_outs = self.decoder( |
| | | encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, self.scama_mask |
| | | ) |
| | | decoder_out = decoder_outs[0] |
| | | decoder_out = torch.log_softmax(decoder_out, dim=-1) |
| | | return decoder_out, ys_pad_lens |
| | | |
| | | def cal_decoder_with_predictor_chunk(self, encoder_out, sematic_embeds, cache=None): |
| | | decoder_outs = self.decoder.forward_chunk( |
| | |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | |
| | | stats["loss"] = torch.clone(loss.detach()) |
| | | |
| | | # force_gatherable: to-device and to-tensor if scalar for DataParallel |
| | | if self.length_normalized_loss: |
| | | batch_size = int((text_lengths + self.predictor_bias).sum()) |
| | | loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device) |
| | | return loss, stats, weight |
| | | |
| | |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | |
| | | if self.predictor_bias == 1: |
| | | _, ys_pad = add_sos_eos(ys_pad, self.sos, self.eos, self.ignore_id) |
| | | ys_pad_lens = ys_pad_lens + self.predictor_bias |
| | | pre_acoustic_embeds, pre_token_length, _, pre_peak_index, _ = self.predictor(encoder_out, ys_pad, encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | pre_acoustic_embeds, pre_token_length, _, pre_peak_index, _ = self.predictor(encoder_out, ys_pad, |
| | | encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | |
| | | # 0. sampler |
| | | decoder_out_1st = None |
| | |
| | | loss = loss_ctc |
| | | else: |
| | | loss = self.ctc_weight * loss_ctc + ( |
| | | 1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight + loss_pre2 * self.predictor_weight * 0.5 |
| | | 1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight + loss_pre2 * self.predictor_weight * 0.5 |
| | | |
| | | # Collect Attn branch stats |
| | | stats["loss_att"] = loss_att.detach() if loss_att is not None else None |
| | |
| | | stats["loss"] = torch.clone(loss.detach()) |
| | | |
| | | # force_gatherable: to-device and to-tensor if scalar for DataParallel |
| | | if self.length_normalized_loss: |
| | | batch_size = int((text_lengths + self.predictor_bias).sum()) |
| | | loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device) |
| | | return loss, stats, weight |
| | | |
| | |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | |
| | | stats["loss"] = torch.clone(loss.detach()) |
| | | |
| | | # force_gatherable: to-device and to-tensor if scalar for DataParallel |
| | | if self.length_normalized_loss: |
| | | batch_size = int((text_lengths + self.predictor_bias).sum()) |
| | | loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device) |
| | | return loss, stats, weight |
| | | |
| | |
| | | |
| | | return loss_att, acc_att, cer_att, wer_att, loss_pre |
| | | |
| | | def cal_decoder_with_predictor(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, hw_list=None): |
| | | def cal_decoder_with_predictor(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, hw_list=None, |
| | | clas_scale=1.0): |
| | | if hw_list is None: |
| | | # default hotword list |
| | | hw_list = [torch.Tensor([self.sos]).long().to(encoder_out.device)] # empty hotword list |