我正在尝试从设备获取音频输入。在获取音频输入时,我尝试根据音频输入的强度将图标分配给标签。我使用以下代码:
public void run() {
this.rec.startRecording();
while (!this.done) {
int nshorts = this.readBlock();
if (nshorts <= 0)
break;
}
//assignIcons();
this.rec.stop();
this.rec.release();
}
int readBlock() {
short[] buf = new short[this.block_size];
int nshorts = this.rec.read(buf, 0, buf.length);
if (nshorts > 0) {
//Log.d(getClass().getName(), "Posting " + nshorts + " samples to queue");
this.q.add(buf);
}
new Thread(new Runnable() {
public void run() {
assignIcons();
}
}).start();
return nshorts;
}
public void assignIcons(){
//Add(Start)
byte audioBuffer[] = new byte[this.minBufferSizeInBytes];//minBufferSizeInBytes = AudioRecord.getMinBufferSize( 8000,
AudioFormat.CHANNEL_IN_MONO,AudioFormat.ENCODING_PCM_16BIT);
float totalAbsValue = 0.0f;
short sample = 0;
int numberOfReadBytes = 0;
float tempFloatBuffer[] = new float[3];
int tempIndex = 0;
//Add(End)
//Add(Start)
numberOfReadBytes = this.rec.read( audioBuffer, 0, this.minBufferSizeInBytes );
for( int i=0; i<numberOfReadBytes; i+=2 ) {
sample = (short)( (audioBuffer[i]) | audioBuffer[i + 1] << 8 );
if(sample!=0) {
totalAbsValue += Math.abs( sample ) / (numberOfReadBytes/2);
}
}
tempFloatBuffer[tempIndex%3] = totalAbsValue;
temp = 0.0f;
for( int i=0; i<3; ++i )
temp += tempFloatBuffer[i];
mCamBase = CameraBaseActivity.getInstance();
mCamBase.handler.postDelayed(mCamBase.AnimateRunnable, 10);
//Add(End)
}
我遇到的问题是,我不断得到以下日志,但没有得到想要的输出。我确信我显示的代码确实有问题,但不确定真正的问题是什么导致给出的日志连续输出。非常感谢解决此问题的任何帮助。
01-03 09:24:40.930: DEBUG/co.nyk.android.audio.RecognizerTask(19152): signalling START
01-03 09:24:40.930: DEBUG/co.nyk.android.audio.RecognizerTask(19152): signalled START
01-03 09:24:40.930: DEBUG/co.nyk.android.audio.RecognizerTask(19152): gotSTART
01-03 09:24:40.930: DEBUG/co.nyk.android.audio.RecognizerTask(19152): START
01-03 09:24:41.836: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00001000, server=00001000
01-03 09:24:42.086: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00001800, server=00001800
01-03 09:24:43.321: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00004000, server=00004000
01-03 09:24:43.571: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00004800, server=00004800
01-03 09:24:43.836: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00005000, server=00005000
01-03 09:24:44.094: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00005800, server=00005800
01-03 09:24:44.391: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00006000, server=00006000
01-03 09:24:44.649: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00006800, server=00006800
01-03 09:24:45.118: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00007800, server=00007800
01-03 09:24:45.368: WARN/AudioRecord(19152): obtainBuffer timed out (is the CPU pegged?) user=00008000, server=00008000