# AndroidRecordPCMSample

**Repository Path**: mirrors_pengwei1024/AndroidRecordPCMSample

## Basic Information

- **Project Name**: AndroidRecordPCMSample
- **Description**: Android 录音保存为 pcm demo 
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2020-09-25
- **Last Updated**: 2026-05-24

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# AndroidRecordPCMSample
Android 录音保存为 pcm demo 

- 为什么按byte[] 读取保存不能播放呢???

```java
// 16K采集率
int frequency = 16000;
// 格式
int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;
// 16Bit
int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;
FileOutputStream fos = new FileOutputStream(file);
int bufferSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency, channelConfiguration, audioEncoding, bufferSize);
bufferSize = bufferSize *2;
byte[] buffer = new byte[bufferSize];
audioRecord.startRecording();
Log.i(TAG, "开始录音");
isRecording.set(true);
while (isRecording.get()) {
      int bufferReadResult = audioRecord.read(buffer, 0, bufferSize);
      fos.write(buffer, 0, bufferReadResult);
}
audioRecord.stop();
fos.close();
```

- 用short[] 读取的就可以

```java
OutputStream os = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(os);
DataOutputStream dos = new DataOutputStream(bos);
int bufferSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency, channelConfiguration, audioEncoding, bufferSize);
short[] buffer = new short[bufferSize];
byte[] bs = new byte[bufferSize];
audioRecord.startRecording();
Log.i(TAG, "开始录音");
isRecording.set(true);
while (isRecording.get()) {
    int bufferReadResult = audioRecord.read(buffer, 0, bufferSize);
    for (int i = 0; i < bufferReadResult; i++) {
         dos.writeShort(buffer[i]);
    }
}
audioRecord.stop();
dos.close();
```