stream-speech

StreamSpeech

Authors: Shaolei Zhang, Qingkai Fang, Shoutao Guo, Zhengrui Ma, Min Zhang, Yang Feng*

Code for ACL 2024 paper “StreamSpeech: Simultaneous Speech-to-Speech Translation with Multi-task Learning”.

StreamSpeech

🎧 Listen to StreamSpeech's translated speech 🎧

💡Highlight:

StreamSpeech achieves SOTA performance on both offline and simultaneous speech-to-speech translation.
StreamSpeech performs streaming ASR, simultaneous speech-to-text translation and simultaneous speech-to-speech translation via an “All in One” seamless model.
StreamSpeech can present intermediate results (i.e., ASR or translation results) during simultaneous translation, offering a more comprehensive low-latency communication experience.

🔥News

[06.17] Add Web GUI demo, now you can experience StreamSpeech in your local browser.
[06.05] Paper, code, models and demo of StreamSpeech are available!

⭐Features

Support 8 Tasks

Offline: Speech Recognition (ASR)✅, Speech-to-Text Translation (S2TT)✅, Speech-to-Speech Translation (S2ST)✅, Speech Synthesis (TTS)✅
Simultaneous: Streaming ASR✅, Simultaneous S2TT✅, Simultaneous S2ST✅, Real-time TTS✅ under any latency (with one model)

GUI Demo

https://github.com/ictnlp/StreamSpeech/assets/34680227/4d9bdabf-af66-4320-ae7d-0f23e721cd71

Simultaneously provide ASR, translation, and synthesis results via a seamless model

Case

Speech Input: example/wavs/common_voice_fr_17301936.mp3

Transcription (ground truth): jai donc lexpérience des années passées jen dirai un mot tout à lheure

Translation (ground truth): i therefore have the experience of the passed years i’ll say a few words about that later

StreamSpeech	Simultaneous	Offline
Speech Recognition	jai donc expérience des années passé jen dirairai un mot tout à lheure	jai donc lexpérience des années passé jen dirairai un mot tout à lheure
Speech-to-Text Translation	i therefore have an experience of last years i will tell a word later	so i have the experience in the past years i’ll say a word later
Speech-to-Speech Translation
Text-to-Speech Synthesis (incrementally synthesize speech word by word)

⚙Requirements

Python == 3.10, PyTorch == 2.0.1, Install fairseq & SimulEval

cd fairseq
pip install --editable ./ --no-build-isolation
cd SimulEval
pip install --editable ./

🚀Quick Start

1. Model Download

(1) StreamSpeech Models

Language	UnitY	StreamSpeech (offline)	StreamSpeech (simultaneous)
Fr-En	unity.fr-en.pt [Huggingface] [Baidu]	streamspeech.offline.fr-en.pt [Huggingface] [Baidu]	streamspeech.simultaneous.fr-en.pt [Huggingface] [Baidu]
Es-En	unity.es-en.pt [Huggingface] [Baidu]	streamspeech.offline.es-en.pt [Huggingface] [Baidu]	streamspeech.simultaneous.es-en.pt [Huggingface] [Baidu]
De-En	unity.de-en.pt [Huggingface] [Baidu]	streamspeech.offline.de-en.pt [Huggingface] [Baidu]	streamspeech.simultaneous.de-en.pt [Huggingface] [Baidu]

(2) Unit-based HiFi-GAN Vocoder

Unit config	Unit size	Vocoder language	Dataset	Model
mHuBERT, layer 11	1000	En	LJSpeech	ckpt, config

2. Prepare Data and Config (only for test/inference)

(1) Config Files

Replace /data/zhangshaolei/StreamSpeech in files configs/fr-en/config_gcmvn.yaml and configs/fr-en/config_mtl_asr_st_ctcst.yaml with your local address of StreamSpeech repo.

(2) Test Data

Prepare test data following SimulEval format. example/ provides an example:

wav_list.txt: Each line records the path of a source speech.
target.txt: Each line records the reference text, e.g., target translation or source transcription (used to calculate the metrics).

3. Inference with SimulEval

Run these scripts to inference StreamSpeech on streaming ASR, simultaneous S2TT and simultaneous S2ST.

--source-segment-size: set the chunk size (millisecond) to any value to control the latency

Simultaneous Speech-to-Speech Translation

`--output-asr-translation`: whether to output the intermediate ASR and translated text results during simultaneous speech-to-speech translation. ```shell export CUDA_VISIBLE_DEVICES=0 ROOT=/data/zhangshaolei/StreamSpeech # path to StreamSpeech repo PRETRAIN_ROOT=/data/zhangshaolei/pretrain_models VOCODER_CKPT=$PRETRAIN_ROOT/unit-based_HiFi-GAN_vocoder/mHuBERT.layer11.km1000.en/g_00500000 # path to downloaded Unit-based HiFi-GAN Vocoder VOCODER_CFG=$PRETRAIN_ROOT/unit-based_HiFi-GAN_vocoder/mHuBERT.layer11.km1000.en/config.json # path to downloaded Unit-based HiFi-GAN Vocoder LANG=fr file=streamspeech.simultaneous.${LANG}-en.pt # path to downloaded StreamSpeech model output_dir=$ROOT/res/streamspeech.simultaneous.${LANG}-en/simul-s2st chunk_size=320 #ms PYTHONPATH=$ROOT/fairseq simuleval --data-bin ${ROOT}/configs/${LANG}-en \ --user-dir ${ROOT}/researches/ctc_unity --agent-dir ${ROOT}/agent \ --source example/wav_list.txt --target example/target.txt \ --model-path $file \ --config-yaml config_gcmvn.yaml --multitask-config-yaml config_mtl_asr_st_ctcst.yaml \ --agent $ROOT/agent/speech_to_speech.streamspeech.agent.py \ --vocoder $VOCODER_CKPT --vocoder-cfg $VOCODER_CFG --dur-prediction \ --output $output_dir/chunk_size=$chunk_size \ --source-segment-size $chunk_size \ --quality-metrics ASR_BLEU --target-speech-lang en --latency-metrics AL AP DAL StartOffset EndOffset LAAL ATD NumChunks DiscontinuitySum DiscontinuityAve DiscontinuityNum RTF \ --device gpu --computation-aware \ --output-asr-translation True ``` You should get the following outputs: ``` fairseq plugins loaded... fairseq plugins loaded... fairseq plugins loaded... fairseq plugins loaded... 2024-06-06 09:45:46 | INFO | fairseq.tasks.speech_to_speech | dictionary size: 1,004 import agents... Removing weight norm... 2024-06-06 09:45:50 | INFO | agent.tts.vocoder | loaded CodeHiFiGAN checkpoint from /data/zhangshaolei/pretrain_models/unit-based_HiFi-GAN_vocoder/mHuBERT.layer11.km1000.en/g_00500000 2024-06-06 09:45:50 | INFO | simuleval.utils.agent | System will run on device: gpu. 2024-06-06 09:45:50 | INFO | simuleval.dataloader | Evaluating from speech to speech. 0%| | 0/2 [00:00<?, ?it/s] Streaming ASR: Streaming ASR: Streaming ASR: je Simultaneous translation: i would Streaming ASR: je voudrais Simultaneous translation: i would like to Streaming ASR: je voudrais soumettre Simultaneous translation: i would like to sub Streaming ASR: je voudrais soumettre cette Simultaneous translation: i would like to submit Streaming ASR: je voudrais soumettre cette idée Simultaneous translation: i would like to submit this Streaming ASR: je voudrais soumettre cette idée à la Simultaneous translation: i would like to submit this idea to Streaming ASR: je voudrais soumettre cette idée à la réflexion Simultaneous translation: i would like to submit this idea to the Streaming ASR: je voudrais soumettre cette idée à la réflexion de Simultaneous translation: i would like to submit this idea to the reflection Streaming ASR: je voudrais soumettre cette idée à la réflexion de lassemblée Simultaneous translation: i would like to submit this idea to the reflection of Streaming ASR: je voudrais soumettre cette idée à la réflexion de lassemblée nationale Simultaneous translation: i would like to submit this idea to the reflection of the Streaming ASR: je voudrais soumettre cette idée à la réflexion de lassemblée nationale Simultaneous translation: i would like to submit this idea to the reflection of the national assembly 50%|███████████████████████████████████████████████████████████████████████████████████ | 1/2 [00:04<00:04, 4.08s/it] Streaming ASR: Streaming ASR: Streaming ASR: Streaming ASR: Streaming ASR: jai donc Simultaneous translation: i therefore Streaming ASR: jai donc Streaming ASR: jai donc expérience des Simultaneous translation: i therefore have an experience Streaming ASR: jai donc expérience des années Streaming ASR: jai donc expérience des années passé Simultaneous translation: i therefore have an experience of last Streaming ASR: jai donc expérience des années passé jen Simultaneous translation: i therefore have an experience of last years Streaming ASR: jai donc expérience des années passé jen dirairai Simultaneous translation: i therefore have an experience of last years i will Streaming ASR: jai donc expérience des années passé jen dirairai un mot Simultaneous translation: i therefore have an experience of last years i will tell a Streaming ASR: jai donc expérience des années passé jen dirairai un mot tout à lheure Simultaneous translation: i therefore have an experience of last years i will tell a word Streaming ASR: jai donc expérience des années passé jen dirairai un mot tout à lheure Simultaneous translation: i therefore have an experience of last years i will tell a word later 100%|██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:06<00:00, 3.02s/it] 2024-06-06 09:45:56 | WARNING | simuleval.scorer.asr_bleu | Beta feature: Evaluating speech output. Faieseq is required. 2024-06-06 09:46:12 | INFO | fairseq.tasks.audio_finetuning | Using dict_path : /data/zhangshaolei/.cache/ust_asr/en/dict.ltr.txt Transcribing predictions: 100%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:01<00:00, 1.63it/s] 2024-06-06 09:46:21 | INFO | simuleval.sentence_level_evaluator | Results: ASR_BLEU AL AL_CA AP AP_CA DAL DAL_CA StartOffset StartOffset_CA EndOffset EndOffset_CA LAAL LAAL_CA ATD ATD_CA NumChunks NumChunks_CA DiscontinuitySum DiscontinuitySum_CA DiscontinuityAve DiscontinuityAve_CA DiscontinuityNum DiscontinuityNum_CA RTF RTF_CA 15.448 1724.895 2913.508 0.425 0.776 1358.812 3137.55 1280.0 2213.906 1366.0 1366.0 1724.895 2913.508 1440.146 3389.374 9.5 9.5 110.0 110.0 55.0 55.0 1 1 1.326 1.326 ``` Logs and evaluation results are stored in ` $output_dir/chunk_size=$chunk_size`: ``` $output_dir/chunk_size=$chunk_size ├── wavs/ │ ├── 0_pred.wav # generated speech │ ├── 1_pred.wav │ ├── 0_pred.txt # asr transcription for ASR-BLEU tookit │ ├── 1_pred.txt ├── config.yaml ├── asr_transcripts.txt # ASR-BLEU transcription results ├── metrics.tsv ├── scores.tsv ├── asr_cmd.bash └── instances.log # logs of Simul-S2ST ```

Simultaneous Speech-to-Text Translation

```shell export CUDA_VISIBLE_DEVICES=0 ROOT=/data/zhangshaolei/StreamSpeech # path to StreamSpeech repo LANG=fr file=streamspeech.simultaneous.${LANG}-en.pt # path to downloaded StreamSpeech model output_dir=$ROOT/res/streamspeech.simultaneous.${LANG}-en/simul-s2tt chunk_size=320 #ms PYTHONPATH=$ROOT/fairseq simuleval --data-bin ${ROOT}/configs/${LANG}-en \ --user-dir ${ROOT}/researches/ctc_unity --agent-dir ${ROOT}/agent \ --source example/wav_list.txt --target example/target.txt \ --model-path $file \ --config-yaml config_gcmvn.yaml --multitask-config-yaml config_mtl_asr_st_ctcst.yaml \ --agent $ROOT/agent/speech_to_text.s2tt.streamspeech.agent.py\ --output $output_dir/chunk_size=$chunk_size \ --source-segment-size $chunk_size \ --quality-metrics BLEU --latency-metrics AL AP DAL StartOffset EndOffset LAAL ATD NumChunks RTF \ --device gpu --computation-aware ```

Streaming ASR

```shell export CUDA_VISIBLE_DEVICES=0 ROOT=/data/zhangshaolei/StreamSpeech # path to StreamSpeech repo LANG=fr file=streamspeech.simultaneous.${LANG}-en.pt # path to downloaded StreamSpeech model output_dir=$ROOT/res/streamspeech.simultaneous.${LANG}-en/streaming-asr chunk_size=320 #ms PYTHONPATH=$ROOT/fairseq simuleval --data-bin ${ROOT}/configs/${LANG}-en \ --user-dir ${ROOT}/researches/ctc_unity --agent-dir ${ROOT}/agent \ --source example/wav_list.txt --target example/source.txt \ --model-path $file \ --config-yaml config_gcmvn.yaml --multitask-config-yaml config_mtl_asr_st_ctcst.yaml \ --agent $ROOT/agent/speech_to_text.asr.streamspeech.agent.py\ --output $output_dir/chunk_size=$chunk_size \ --source-segment-size $chunk_size \ --quality-metrics BLEU --latency-metrics AL AP DAL StartOffset EndOffset LAAL ATD NumChunks RTF \ --device gpu --computation-aware ```

🎈Develop Your Own StreamSpeech

1. Data Preprocess

Follow ./preprocess_scripts to process CVSS-C data.

2. Training

[!Note] You can directly use the downloaded StreamSpeech model for evaluation and skip training.

model

Follow researches/ctc_unity/train_scripts/train.simul-s2st.sh to train StreamSpeech for simultaneous speech-to-speech translation.
Follow researches/ctc_unity/train_scripts/train.offline-s2st.sh to train StreamSpeech for offline speech-to-speech translation.
We also provide some other StreamSpeech variants and baseline implementations.

Model	–user-dir	–arch	Description
Translatotron 2	`researches/translatotron`	`s2spect2_conformer_modified`	Translatotron 2
UnitY	`researches/translatotron`	`unity_conformer_modified`	UnitY
Uni-UnitY	`researches/uni_unity`	`uni_unity_conformer`	Change all encoders in UnitY into unidirectional
Chunk-UnitY	`researches/chunk_unity`	`chunk_unity_conformer`	Change the Conformer in UnitY into Chunk-based Conformer
StreamSpeech	`researches/ctc_unity`	`streamspeech`	StreamSpeech
StreamSpeech (cascade)	`researches/ctc_unity`	`streamspeech_cascade`	Cascaded StreamSpeech of S2TT and TTS. TTS module can be used independently for real-time TTS given incremental text.
HMT	`researches/hmt`	`hmt_transformer_iwslt_de_en`	HMT: strong simultaneous text-to-text translation method
DiSeg	`researches/diseg`	`convtransformer_espnet_base_seg`	DiSeg: strong simultaneous speech-to-text translation method

[!Tip] The train_scripts/ and test_scripts/ in directory --user-dir give the training and testing scripts for each model. Refer to official repo of UnitY, Translatotron 2, HMT and DiSeg for more details.

3. Evaluation

(1) Offline Evaluation

Follow pred.offline-s2st.sh to evaluate the offline performance of StreamSpeech on ASR, S2TT and S2ST.

(2) Simultaneous Evaluation

A trained StreamSpeech model can be used for streaming ASR, simultaneous speech-to-text translation and simultaneous speech-to-speech translation. We provide agent/ for these three tasks:

agent/speech_to_speech.streamspeech.agent.py: simultaneous speech-to-speech translation
agent/speech_to_text.s2tt.streamspeech.agent.py: simultaneous speech-to-text translation
agent/speech_to_text.asr.streamspeech.agent.py: streaming ASR

Follow simuleval.simul-s2st.sh, simuleval.simul-s2tt.sh, simuleval.streaming-asr.sh to evaluate StreamSpeech.

4. Our Results

Our project page (https://ictnlp.github.io/StreamSpeech-site/) provides some translated speech generated by StreamSpeech, listen to it 🎧.

(1) Offline Speech-to-Speech Translation ( ASR-BLEU: quality )

offline

(2) Simultaneous Speech-to-Speech Translation ( AL: latency | ASR-BLEU: quality )

simul

(3) Simultaneous Speech-to-Text Translation ( AL: latency | BLEU: quality )

simul

(4) Streaming ASR ( AL: latency | WER: quality )

simul

🖋Citation

If you have any questions, please feel free to submit an issue or contact zhangshaolei20z@ict.ac.cn.

If our work is useful for you, please cite as:

@inproceedings{streamspeech,
      title={StreamSpeech: Simultaneous Speech-to-Speech Translation with Multi-task Learning}, 
      author={Shaolei Zhang and Qingkai Fang and Shoutao Guo and Zhengrui Ma and Min Zhang and Yang Feng},
      year={2024},
      booktitle = {Proceedings of the 62th Annual Meeting of the Association for Computational Linguistics (Long Papers)},
      publisher = {Association for Computational Linguistics}
}

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