How to record sound by using inbuilt microphone in android

问题

I need to record sound by using mobile's own microphone... How to do it?

回答1:

It's explained here

Audio capture from the device is a bit more complicated than audio/video playback, but still fairly simple:

Create a new instance of android.media.MediaRecorder using new

Set the audio source using MediaRecorder.setAudioSource(). You will probably want to use MediaRecorder.AudioSource.MIC

Set output file format using MediaRecorder.setOutputFormat()

Set output file name using MediaRecorder.setOutputFile()

Set the audio encoder using MediaRecorder.setAudioEncoder()

Call MediaRecorder.prepare() on the MediaRecorder instance.

To start audio capture, call MediaRecorder.start().

To stop audio capture, call MediaRecorder.stop().

When you are done with the MediaRecorder instance, call MediaRecorder.release() on it. Calling MediaRecorder.release() is always recommended to free the resource immediately.

回答2:

Example:

To start recording:

        MediaRecorder audioRecorder = new MediaRecorder();
        audioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
        audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
        audioRecorder.setOutputFile(AUDIO_FILE_PATH);

        try {
            audioRecorder.prepare();

        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        audioRecorder.start();

To stop recording:

        audioRecorder.stop();
        audioRecorder.release();

来源：https://stackoverflow.com/questions/6261241/how-to-record-sound-by-using-inbuilt-microphone-in-android

标签

android

microphone