70 lines
2.4 KiB
ReStructuredText
70 lines
2.4 KiB
ReStructuredText
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wanson asr development guide
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==============================
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:link_to_translation:`zh_CN:[中文]`
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1.Functional Overview
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---------------------------------
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wanson asr Library is mainly used for offline speech recognition, and can support custom wake-up words and command words through model training.
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2.development data
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---------------------------------
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The armino platform has adapted and integrated wanson's offline speech recognition library as a platform component, and provided a project for Huazhen's speech recognition application development. Customers can develop based on this project.
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For a detailed description of the API interface of the wanson-asr library, please refer to the source file: ``.\components\bk_thirdparty\asr\wanson\include\asr.h``
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wanson—asr storage path:``.\components\bk_thirdparty\asr\wanson\lib\libasr.a``
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.. note::
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1. The wanson Speech Recognition Library requires the audio stream format to be: mono, 16K sampling rate, and 16bit bit width.
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2. wanson Speech Recognition Library is based on floating-point arithmetic.
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3. After modifying the wake word or command word, the ``libasr.a`` library needs to be replaced.
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3.Real-time offline speech recognition application development
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-----------------------------------------------------------------
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The process of developing real-time offline recognition based on the wanson speech recognition library is as follows:
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1. Initialize speech recognition
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2. Initialize audio sampling
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3. Run speech recognition
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4. Turn on audio sampling
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Examples of interface calls are as follows:
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::
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/* init wanson asr lib */
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Wanson_ASR_Init()
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//reset wanson asr
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Wanson_ASR_Reset();
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/* init mic record */
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aud_intf_drv_setup.aud_intf_tx_mic_data = aud_asr_handle;
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//init audio component
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bk_aud_intf_drv_init(&aud_intf_drv_setup);
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aud_work_mode = AUD_INTF_WORK_MODE_GENERAL;
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//set audio component work mode
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bk_aud_intf_set_mode(aud_work_mode);
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//init audio mic
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aud_intf_mic_setup.samp_rate = AUD_ADC_SAMP_RATE_16K;
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ret = bk_aud_intf_mic_init(&aud_intf_mic_setup);
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/* start Speech Recognition */
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//Continuously send the collected data to the algorithm for recognition
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Wanson_ASR_Recog((short*)asr_buff, 480, &text, &score);
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/* turn on audio sampling */
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bk_aud_intf_mic_start();
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::
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Please refer to the source code for the complete demo: ``\components\demos\media\audio\audio_asr``
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Reference link
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--------------------------
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`wanson asr project <../../projects_work/thirdparty/wanson_asr/index.html>`_
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