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→查询 使用命令测试录音的方法
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=== 查询 使用命令测试录音的方法 Method of using commands to test recording ===1) 开发板上有板载 MIC，位置如下所示：There is an onboard MIC on the development board, the location is as follows：<br><br>
[[Image:Pi-5-details2-pic16.png]]<br><br>
2) 运行 Running the '''test_record.sh main''' 命令会通过板载 command will record a piece of audio through the onboard MIC 录制一段音频，然后播放到 , and then play it to HDMI 和耳机。and headphones<br>
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Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
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3) 除了板载 MIC，我们还可以通过带 In addition to the onboard MIC 功能的耳机来录制音频。将带 , we can also record audio through headphones with MIC 功能的耳机插入开发板后，运行 function. After inserting the headset with MIC function into the development board, run the '''test_record.sh headset''' 命令会通过耳机录制一段音频， 然后播放到 command to record a piece of audio through the headset, and then play it to HDMI 和耳机。and the headset.<br>
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