AndroidSoundTouch

A handy SoundTouch java wrapper library for Android

This repo is a java wrapper of SoundTouch for Android.

• Keep APIs of soundtouch and provide a Java class to process audio streams so you can do it without any C/C++ code.
• Support ENCODING_PCM_16BIT samples.
• Support mono(1)/stereo(2) channels.
• Support short/byte array input/output

Demo

Demo apk download link

Note: You should grant audio record permission manually before using.

Usage

Gradle:

repositories {
    jcenter()
}

// For gradle plugin 2.x
dependencies {
    compile 'io.github.junyuecao:soundtouch:1.0.1'
}

// For gradle plugin 3.x
dependencies {
    implementation 'io.github.junyuecao:soundtouch:1.0.1'
}

The APIs are almost the same with the C/C++ version.

• in Java

public void onVoiceStart() {
    mSoundTouch = new SoundTouch();
    mSoundTouch.setChannels(1);
    mSoundTouch.setSampleRate(VoiceRecorder.SAMPLE_RATE);
}

public void onVoice(byte[] data, int size) {
    mSoundTouch.setRate(mRate);
    mSoundTouch.setPitch(mPitch);
    mSoundTouch.putSamples(data, size);
    int bufferSize = 0
    do {
        bufferSize = mSoundTouch.receiveSamples(mTempBuffer, BUFFER_SIZE);
        if (bufferSize > 0) {
            mTestWavOutput.write(mTempBuffer, 0, bufferSize);
        }
    } while (bufferSize != 0);

}

public void onVoiceEnd() {
    mSoundTouch.release();
}