acc update, including additional CTC linear transform, bug fix, and so on

egs/covost/multi-en/run.sh

@@ -294,6 +294,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
         idx=$((idx + 1))
     done
 
+    #cmd="python3 -u -m debugpy --listen 0.0.0.0:5678 --wait-for-client ${code_dir}/fairseq_cli/train.py
     cmd="python3 -u ${code_dir}/fairseq_cli/train.py
         ${data_dir}
         --source-lang ${src_lang}

egs/librispeech/asr/conf/purectc_pds_base_8_2664.yaml → egs/librispeech/asr/conf/purectc_pds_base_8_2484.yaml

@@ -3,7 +3,7 @@ encoder-type: pds
 
 encoder-embed-dim: 256
 pds-stages: 4
-pds-layers: 2_6_6_4
+pds-layers: 2_4_8_4
 pds-ratios: 2_2_2_0
 pds-fusion: False
 pds-fusion-method: all_conv2

egs/mustc/st/conf/finetune.yaml

+warmup-updates: 1000
+lr: 1e-4

egs/mustc/st/conf/hubert.yaml

+subsampling-type: conv1d
+subsampling-layers: 1
+subsampling-filter: 2048
+subsampling-kernel: 5
+subsampling-stride: 2

egs/mustc/st/decode.sh

@@ -12,7 +12,7 @@ if [ "$#" -eq 1 ]; then
 fi
 
 sacrebleu=1
-ctc_infer=0
+ctc_infer=1
 n_average=10
 beam_size=5
 infer_ctc_weight=0

egs/mustc/st/run.sh

@@ -79,7 +79,7 @@ step_valid=0
 bleu_valid=0
 
 # Decoding Settings
-batch_size=1
+batch_size=0
 sacrebleu=1
 dec_model=checkpoint_best.pt
 ctc_infer=0
@@ -93,7 +93,7 @@ infer_debug=0
 infer_score=0
 infer_tag=
 infer_parameter=
-#infer_parameters="--cal-monotonic-cross-attn-weights --cal-localness --localness-window 0.1 --cal-topk-cross-attn-weights --topk-cross-attn-weights 15 --cal-entropy"
+#infer_parameter="--cal-monotonic-cross-attn-weights --cal-localness --localness-window 0.1 --cal-topk-cross-attn-weights --topk-cross-attn-weights 15 --cal-entropy"
 
 # Parsing Options
 if [[ ${share_dict} -eq 1 ]]; then
@@ -289,6 +289,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
         idx=$((idx + 1))
     done
 
+    #cmd="python3 -u -m debugpy --listen 0.0.0.0:5678 --wait-for-client ${code_dir}/fairseq_cli/train.py
     cmd="python3 -u ${code_dir}/fairseq_cli/train.py
         ${data_dir}
         --source-lang ${src_lang}

examples/speech_to_text/prep_audio_data.py

@@ -554,6 +554,11 @@ def process_joint(args):
     with NamedTemporaryFile(mode="w") as f:
         for lang in languages:
             tsv_path = cur_root / f"{lang}" / f"{args.task}" / f"train.tsv"
+
+            gather_tsv = output_root / "train_all.tsv"
+            if os.path.exists(gather_tsv):
+                tsv_path = gather_tsv
+
             df = load_df_from_tsv(tsv_path)
             for t in df["tgt_text"]:
                 f.write(t + "\n")
@@ -566,6 +571,9 @@ def process_joint(args):
                             src_utt = src_utt.replace(w, "")
                         src_utt = " ".join(src_utt.split(" "))                
                     f.write(src_utt + "\n")
+            
+            if os.path.exists(gather_tsv):
+                break
 
         special_symbols = None
         if args.task == 'st':

fairseq/criterions/ctc.py

@@ -391,11 +391,13 @@ class CtcCriterion(FairseqCriterion):
                 pad_mask = (tokens != self.pad_idx) & (tokens != self.eos_idx)
                 target_lengths = pad_mask.sum(-1)
 
-                if "ctc_padding_mask" in encoder_out:
-                    non_padding_mask = ~encoder_out["ctc_padding_mask"][0]
-                else:
-                    non_padding_mask = ~encoder_out["encoder_padding_mask"][0]
-                input_lengths = non_padding_mask.long().sum(-1)
+                input_lengths = (~encoder_out["encoder_padding_mask"][0]).long().sum(-1)
+                if isinstance(ctc_logit, list):
+                    input_lengths = ((~ctc_logit[1]).long().sum(-1)
+                        if ctc_logit[1] is not None
+                        else input_lengths
+                    )
+                    ctc_logit = ctc_logit[0]
 
                 ctc_alignment_oracle["ctc"] = get_ctc_align(
                     ctc_logit,
@@ -416,11 +418,13 @@ class CtcCriterion(FairseqCriterion):
                 xctc_logit = encoder_out["inter_xctc_logits"][-1]
 
             if xctc_logit is not None:
-                if "ctc_padding_mask" in encoder_out:
-                    non_padding_mask = ~encoder_out["ctc_padding_mask"][0]
-                else:
-                    non_padding_mask = ~encoder_out["encoder_padding_mask"][0]
-                input_lengths = non_padding_mask.long().sum(-1)
+                input_lengths = (~encoder_out["encoder_padding_mask"][0]).long().sum(-1)
+                if isinstance(xctc_logit, list):
+                    input_lengths = ((~xctc_logit[1]).long().sum(-1)
+                        if xctc_logit[1] is not None
+                        else input_lengths
+                    )
+                    xctc_logit = xctc_logit[0]
 
                 tokens = self.get_ctc_target_text(sample)
                 target_pad_mask = (tokens != self.pad_idx) & (tokens != self.eos_idx)

fairseq/modules/speech_to_text/ctc.py

@@ -16,10 +16,15 @@ logger = logging.getLogger(__name__)
 class CTC(nn.Module):
 
     def __init__(self, embed_dim, dictionary_size, dropout,
-                 need_layernorm=False, dictionary=None):
+                 need_layernorm=False, dictionary=None, ctc_linear_transform=False):
         super(CTC, self).__init__()
 
         self.embed_dim = embed_dim
+        if ctc_linear_transform is True:
+            self.ctc_linear_transform = nn.Linear(embed_dim, embed_dim)
+        else:
+            self.ctc_linear_transform = None
+
         self.ctc_projection = nn.Linear(embed_dim, dictionary_size)
 
         nn.init.normal_(self.ctc_projection.weight, mean=0, std=embed_dim ** -0.5)
@@ -53,6 +58,9 @@ class CTC(nn.Module):
             self.save_stream = None
 
     def forward(self, x, padding=None, tag=None, is_top=False):
+
+        if self.ctc_linear_transform is not None:
+            x = self.ctc_linear_transform(x)
         if self.need_layernorm:
             x = self.LayerNorm(x)
 

fairseq/tasks/speech_to_text.py

@@ -556,7 +556,7 @@ class SpeechToTextTask(LegacyFairseqTask):
             if hasattr(generator, "symbols_to_strip_from_output"):
                 symbols_to_strip_from_output = generator.symbols_to_strip_from_output
             else:
-                symbols_to_strip_from_output = generator.eos
+                symbols_to_strip_from_output = [generator.eos]
             s = self.tgt_dict.string(
                 toks.int().cpu(),
                 remove_bpe,