| | |
| | | # Speech Recognition |
| | | |
| | | > **Note**: |
| | | > The modelscope pipeline supports all the models in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/modelscope_models.html#pretrained-models-on-modelscope) to inference and finetine. Here we take the typic models as examples to demonstrate the usage. |
| | | > The modelscope pipeline supports all the models in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/model_zoo/modelscope_models.html#pretrained-models-on-modelscope) to inference and finetine. Here we take the typic models as examples to demonstrate the usage. |
| | | |
| | | ## Inference |
| | | |
| | |
| | | rec_result = inference_pipeline(audio_in='https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav') |
| | | print(rec_result) |
| | | ``` |
| | | #### [Paraformer-online Model](https://www.modelscope.cn/models/damo/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online/summary) |
| | | #### [Paraformer-online Model](https://www.modelscope.cn/models/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-online/summary) |
| | | ```python |
| | | inference_pipeline = pipeline( |
| | | task=Tasks.auto_speech_recognition, |
| | | model='damo/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online', |
| | | model='damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-online', |
| | | model_revision='v1.0.4' |
| | | ) |
| | | import soundfile |
| | | speech, sample_rate = soundfile.read("example/asr_example.wav") |
| | | |
| | | param_dict = {"cache": dict(), "is_final": False} |
| | | chunk_stride = 7680# 480ms |
| | | # first chunk, 480ms |
| | | chunk_size = [5, 10, 5] #[5, 10, 5] 600ms, [8, 8, 4] 480ms |
| | | param_dict = {"cache": dict(), "is_final": False, "chunk_size": chunk_size} |
| | | chunk_stride = chunk_size[1] * 960 # 600ms、480ms |
| | | # first chunk, 600ms |
| | | speech_chunk = speech[0:chunk_stride] |
| | | rec_result = inference_pipeline(audio_in=speech_chunk, param_dict=param_dict) |
| | | print(rec_result) |
| | | # next chunk, 480ms |
| | | # next chunk, 600ms |
| | | speech_chunk = speech[chunk_stride:chunk_stride+chunk_stride] |
| | | rec_result = inference_pipeline(audio_in=speech_chunk, param_dict=param_dict) |
| | | print(rec_result) |
| | |
| | | Full code of demo, please ref to [demo](https://github.com/alibaba-damo-academy/FunASR/discussions/241) |
| | | |
| | | #### [UniASR Model](https://www.modelscope.cn/models/damo/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab3445-pytorch-online/summary) |
| | | There are three decoding mode for UniASR model(`fast`、`normal`、`offline`), for more model detailes, please refer to [docs](https://www.modelscope.cn/models/damo/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab3445-pytorch-online/summary) |
| | | There are three decoding mode for UniASR model(`fast`、`normal`、`offline`), for more model details, please refer to [docs](https://www.modelscope.cn/models/damo/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab3445-pytorch-online/summary) |
| | | ```python |
| | | decoding_model = "fast" # "fast"、"normal"、"offline" |
| | | inference_pipeline = pipeline( |
| | |
| | | Undo |
| | | |
| | | #### [MFCCA Model](https://www.modelscope.cn/models/NPU-ASLP/speech_mfcca_asr-zh-cn-16k-alimeeting-vocab4950/summary) |
| | | For more model detailes, please refer to [docs](https://www.modelscope.cn/models/NPU-ASLP/speech_mfcca_asr-zh-cn-16k-alimeeting-vocab4950/summary) |
| | | For more model details, please refer to [docs](https://www.modelscope.cn/models/NPU-ASLP/speech_mfcca_asr-zh-cn-16k-alimeeting-vocab4950/summary) |
| | | ```python |
| | | from modelscope.pipelines import pipeline |
| | | from modelscope.utils.constant import Tasks |
| | |
| | | print(rec_result) |
| | | ``` |
| | | |
| | | #### API-reference |
| | | ##### Define pipeline |
| | | ### API-reference |
| | | #### Define pipeline |
| | | - `task`: `Tasks.auto_speech_recognition` |
| | | - `model`: model name in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/modelscope_models.html#pretrained-models-on-modelscope), or model path in local disk |
| | | - `model`: model name in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/model_zoo/modelscope_models.html#pretrained-models-on-modelscope), or model path in local disk |
| | | - `ngpu`: `1` (Default), decoding on GPU. If ngpu=0, decoding on CPU |
| | | - `ncpu`: `1` (Default), sets the number of threads used for intraop parallelism on CPU |
| | | - `output_dir`: `None` (Default), the output path of results if set |
| | | - `batch_size`: `1` (Default), batch size when decoding |
| | | ##### Infer pipeline |
| | | #### Infer pipeline |
| | | - `audio_in`: the input to decode, which could be: |
| | | - wav_path, `e.g.`: asr_example.wav, |
| | | - pcm_path, `e.g.`: asr_example.pcm, |
| | |
| | | ### Inference with multi-thread CPUs or multi GPUs |
| | | FunASR also offer recipes [egs_modelscope/asr/TEMPLATE/infer.sh](https://github.com/alibaba-damo-academy/FunASR/blob/main/egs_modelscope/asr/TEMPLATE/infer.sh) to decode with multi-thread CPUs, or multi GPUs. |
| | | |
| | | - Setting parameters in `infer.sh` |
| | | - `model`: model name in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/modelscope_models.html#pretrained-models-on-modelscope), or model path in local disk |
| | | - `data_dir`: the dataset dir needs to include `wav.scp`. If `${data_dir}/text` is also exists, CER will be computed |
| | | - `output_dir`: output dir of the recognition results |
| | | - `batch_size`: `64` (Default), batch size of inference on gpu |
| | | - `gpu_inference`: `true` (Default), whether to perform gpu decoding, set false for CPU inference |
| | | - `gpuid_list`: `0,1` (Default), which gpu_ids are used to infer |
| | | - `njob`: only used for CPU inference (`gpu_inference`=`false`), `64` (Default), the number of jobs for CPU decoding |
| | | - `checkpoint_dir`: only used for infer finetuned models, the path dir of finetuned models |
| | | - `checkpoint_name`: only used for infer finetuned models, `valid.cer_ctc.ave.pb` (Default), which checkpoint is used to infer |
| | | - `decoding_mode`: `normal` (Default), decoding mode for UniASR model(fast、normal、offline) |
| | | - `hotword_txt`: `None` (Default), hotword file for contextual paraformer model(the hotword file name ends with .txt") |
| | | #### Settings of `infer.sh` |
| | | - `model`: model name in [model zoo](https://alibaba-damo-academy.github.io/FunASR/en/model_zoo/modelscope_models.html#pretrained-models-on-modelscope), or model path in local disk |
| | | - `data_dir`: the dataset dir needs to include `wav.scp`. If `${data_dir}/text` is also exists, CER will be computed |
| | | - `output_dir`: output dir of the recognition results |
| | | - `batch_size`: `64` (Default), batch size of inference on gpu |
| | | - `gpu_inference`: `true` (Default), whether to perform gpu decoding, set false for CPU inference |
| | | - `gpuid_list`: `0,1` (Default), which gpu_ids are used to infer |
| | | - `njob`: only used for CPU inference (`gpu_inference`=`false`), `64` (Default), the number of jobs for CPU decoding |
| | | - `checkpoint_dir`: only used for infer finetuned models, the path dir of finetuned models |
| | | - `checkpoint_name`: only used for infer finetuned models, `valid.cer_ctc.ave.pb` (Default), which checkpoint is used to infer |
| | | - `decoding_mode`: `normal` (Default), decoding mode for UniASR model(fast、normal、offline) |
| | | - `hotword_txt`: `None` (Default), hotword file for contextual paraformer model(the hotword file name ends with .txt") |
| | | |
| | | - Decode with multi GPUs: |
| | | #### Decode with multi GPUs: |
| | | ```shell |
| | | bash infer.sh \ |
| | | --model "damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch" \ |
| | |
| | | --gpu_inference true \ |
| | | --gpuid_list "0,1" |
| | | ``` |
| | | - Decode with multi-thread CPUs: |
| | | #### Decode with multi-thread CPUs: |
| | | ```shell |
| | | bash infer.sh \ |
| | | --model "damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch" \ |
| | |
| | | --njob 64 |
| | | ``` |
| | | |
| | | - Results |
| | | #### Results |
| | | |
| | | The decoding results can be found in `$output_dir/1best_recog/text.cer`, which includes recognition results of each sample and the CER metric of the whole test set. |
| | | |