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我正在爲Android創建應用程序,聽電話。問題是初始化失敗。Android AudioRecord初始化失敗
我的日誌:
E/AudioRecord﹕ Could not get audio input for record source 3
E/AudioRecord-JNI﹕ Error creating AudioRecord instance: initialization check failed.
E/android.media.AudioRecord﹕ Error code -20 when initializing native AudioRecord object.
我的代碼:
public AudioRecord recorder;
private int sampleRate = 16000;
private int channelConfig = AudioFormat.CHANNEL_IN_MONO;
private int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int minBufSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
recorder = new AudioRecord(MediaRecorder.AudioSource.VOICE_DOWNLINK, sampleRate, channelConfig, audioFormat, minBufSize * 10);
recorder.startRecording();
編輯: 我只想下行
嘗試使用其他配置(例如8000赫茲,而不是16000赫茲)。您也可以嘗試使用'VOICE_CALL'作爲音源,而不是'VOICE_DOWNLINK'。這也會給你上行鏈路,但是你正在測試的設備可能不支持只記錄下行鏈路,因爲語音通話記錄是一個特定於平臺的功能。 – Michael