1 files changed, 78 insertions, 0 deletions
diff --git a/src/test/java/com/jsyn/engine/TestAudioOutput.java b/src/test/java/com/jsyn/engine/TestAudioOutput.java
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+++ b/src/test/java/com/jsyn/engine/TestAudioOutput.java
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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;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Phil Burk, (C) 2009 Mobileer Inc
+ */
+public class TestAudioOutput {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(TestAudioOutput.class);
+
+    @Test
+    public void testMonoSine() throws IOException {
+        LOGGER.debug("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 {
+        LOGGER.debug("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();
+    }
+
+}