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/*
* Copyright 2009 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.engine;
import java.io.IOException;
import com.jsyn.devices.AudioDeviceManager;
import com.jsyn.devices.AudioDeviceOutputStream;
import com.jsyn.devices.javasound.JavaSoundAudioDevice;
import org.junit.jupiter.api.Test;
/**
* @author Phil Burk, (C) 2009 Mobileer Inc
*/
public class TestAudioOutput {
@Test
public void testMonoSine() throws IOException {
System.out.println("Test mono output.");
final int FRAMES_PER_BUFFER = 128;
final int SAMPLES_PER_FRAME = 1;
double[] buffer = new double[FRAMES_PER_BUFFER * SAMPLES_PER_FRAME];
AudioDeviceManager audioDevice = new JavaSoundAudioDevice();
AudioDeviceOutputStream audioOutput = audioDevice.createOutputStream(
audioDevice.getDefaultOutputDeviceID(), 44100, SAMPLES_PER_FRAME);
for (int i = 0; i < FRAMES_PER_BUFFER; i++) {
double angle = (i * Math.PI * 2.0) / FRAMES_PER_BUFFER;
buffer[i] = Math.sin(angle);
}
audioOutput.start();
for (int i = 0; i < 1000; i++) {
audioOutput.write(buffer);
}
audioOutput.stop();
}
@Test
public void testStereoSine() throws IOException {
System.out.println("Test stereo output.");
final int FRAMES_PER_BUFFER = 128;
final int SAMPLES_PER_FRAME = 2;
double[] buffer = new double[FRAMES_PER_BUFFER * SAMPLES_PER_FRAME];
AudioDeviceManager audioDevice = new JavaSoundAudioDevice();
AudioDeviceOutputStream audioOutput = audioDevice.createOutputStream(
audioDevice.getDefaultOutputDeviceID(), 44100, SAMPLES_PER_FRAME);
int bi = 0;
for (int i = 0; i < FRAMES_PER_BUFFER; i++) {
double angle = (i * Math.PI * 2.0) / FRAMES_PER_BUFFER;
buffer[bi++] = Math.sin(angle);
buffer[bi++] = Math.sin(angle);
}
audioOutput.start();
for (int i = 0; i < 1000; i++) {
audioOutput.write(buffer);
}
audioOutput.stop();
}
}
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