var record = AudioRecord(MediaRecorder.AudioSource.VOICE_COMMUNICATION, 16000, 
    AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, 1280)
    //这几个参数分别是 数据来源、采样率、声道、格式和缓存buffer大小
record.startRecording()
Thread{
    while (true) {
        var data = ByteArray(640)
        record.read(data, 0, 640)
        ...
    }
}.start()
复制代码

var track = AudioTrack(AudioManager.STREAM_VOICE_CALL, 16000, AudioFormat.CHANNEL_CONFIGURATION_MONO, 
    AudioFormat.ENCODING_PCM_16BIT, 1296, AudioTrack.MODE_STREAM)
    //这几个参数分别是 流类型（哪种声音）、采样率、声道、格式、缓存buffer大小、模式（静态数据还是流，byte[]是流）
track.play()
Thread{
    while (true) {
        ...
        track.write(result, 0, length)
    }
}.start()
复制代码