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→使用命令测试录音的方法
<p>[[File:media/image291.png|339x112px]]</p></li>
<li><p>运行'''test_record.sh main'''命令会通过板载MIC录制一段音频，然后播放到HDMI_TX1和耳机。</p>
{| class="wikitable" style="width:800px;"
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<p>orangepi@orangepi:~$ '''test_record.sh main'''</p>
<p>Start recording: /tmp/test.wav</p>
<p>Start playing</p>
<p>Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo</p>
<p>Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo</p>|}</li>
<li><p>除了板载MIC，我们还可以通过带MIC功能的耳机来录制音频。将带MIC功能的耳机插入开发板后，运行'''test_record.sh headset'''命令会通过耳机录制一段音频，然后播放到HDMI_TX1和耳机。</p>
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<p>orangepi@orangepi:~$ '''test_record.sh headset'''</p>
<p>Start recording: /tmp/test.wav</p>
<p>Start playing</p>
<p>Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo</p>
<p>Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo</p>|}</li></ol>
== 温度传感器 ==
