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View Code? Open in Web Editor NEWAudio API demo on Android platform
Audio API demo on Android platform
谢谢~
博主你好,我发现不管使用AudioRecord、MediaRecorder还是OpenSL es录音声音都很小,请问这个录音的时候需要设置麦克风的输入音量大小调吗,还是说需要其他的库来增益
public boolean openFile(String filepath, int sampleRateInHz, int channels, int bitsPerSample) throws IOException {
if (mDataOutputStream != null) {
closeFile();
}
mFilepath = filepath;
mDataSize = 0;
mDataOutputStream = new DataOutputStream(new FileOutputStream(filepath));
return writeHeader(sampleRateInHz, bitsPerSample, channels);
}
private boolean writeHeader(int sampleRateInHz, int channels, int bitsPerSample) {
}
这里调用writeHeader函数输入参数有问题
java.io.FileNotFoundException: /storage/emulated/0/test.wav (No such file or directory)
请问提示没找到文件是因为什么呢
现在有个问题,我找了一些wav格式的歌曲文件来测试,发现data的位置不是固定的,但是一定在BitsPerSample标签后面,SubChunk2Size标签之前。所以大师,你的代码要修复一下,要不有些wav格式的歌曲,获取到的SubChunk2Size信息是错误的。
1、WavFileWriter.java
37行: return writeHeader(sampleRateInHz,bitsPerSample,channels);
应为: return writeHeader(sampleRateInHz,channels,bitsPerSample);
2、WavFileHeader.java
19行: public static final int WAV_CHUNKSIZE_EXCLUDE_DATA = 36;
应为: public static final int WAV_CHUNKSIZE_EXCLUDE_DATA = 32;
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