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Diffstat (limited to 'tests/com/jsyn/examples/LongEcho.java')
-rw-r--r-- | tests/com/jsyn/examples/LongEcho.java | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/tests/com/jsyn/examples/LongEcho.java b/tests/com/jsyn/examples/LongEcho.java deleted file mode 100644 index 0a86efd..0000000 --- a/tests/com/jsyn/examples/LongEcho.java +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright 2010 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.examples; - -import java.io.File; -import java.io.IOException; - -import com.jsyn.JSyn; -import com.jsyn.Synthesizer; -import com.jsyn.data.FloatSample; -import com.jsyn.devices.AudioDeviceManager; -import com.jsyn.unitgen.ChannelIn; -import com.jsyn.unitgen.ChannelOut; -import com.jsyn.unitgen.FixedRateMonoReader; -import com.jsyn.unitgen.FixedRateMonoWriter; -import com.jsyn.unitgen.Maximum; -import com.jsyn.unitgen.Minimum; -import com.jsyn.util.WaveFileWriter; - -/** - * Echo the input using a circular buffer in a sample. - * - * @author Phil Burk (C) 2010 Mobileer Inc - */ -public class LongEcho { - final static int DELAY_SECONDS = 4; - Synthesizer synth; - ChannelIn channelIn; - ChannelOut channelOut; - FloatSample sample; - FixedRateMonoReader reader; - FixedRateMonoWriter writer; - Minimum minner; - Maximum maxxer; - - private void test() throws IOException { - // Create a context for the synthesizer. - synth = JSyn.createSynthesizer(); - synth.add(channelIn = new ChannelIn()); - synth.add(channelOut = new ChannelOut()); - - synth.add(minner = new Minimum()); - synth.add(maxxer = new Maximum()); - synth.add(reader = new FixedRateMonoReader()); - synth.add(writer = new FixedRateMonoWriter()); - - sample = new FloatSample(44100 * DELAY_SECONDS, 1); - - maxxer.inputB.set(-0.98); // clip - minner.inputB.set(0.98); - - // Connect the input to the output. - channelIn.output.connect(minner.inputA); - minner.output.connect(maxxer.inputA); - maxxer.output.connect(writer.input); - - reader.output.connect(channelOut.input); - - // Both stereo. - int numInputChannels = 2; - int numOutputChannels = 2; - synth.start(44100, AudioDeviceManager.USE_DEFAULT_DEVICE, numInputChannels, - AudioDeviceManager.USE_DEFAULT_DEVICE, numOutputChannels); - - writer.start(); - channelOut.start(); - - // For a long echo, read cursor should be just in front of the write cursor. - reader.dataQueue.queue(sample, 1000, sample.getNumFrames() - 1000); - // Loop both forever. - reader.dataQueue.queueLoop(sample, 0, sample.getNumFrames()); - writer.dataQueue.queueLoop(sample, 0, sample.getNumFrames()); - System.out.println("Start talking. You should hear an echo after " + DELAY_SECONDS - + " seconds."); - // Sleep a while. - try { - double time = synth.getCurrentTime(); - // Sleep for a while - synth.sleepUntil(time + 30.0); - } catch (InterruptedException e) { - e.printStackTrace(); - } - - saveEcho(new File("saved_echo.wav")); - // Stop everything. - synth.stop(); - } - - private void saveEcho(File file) throws IOException { - WaveFileWriter writer = new WaveFileWriter(file); - writer.setFrameRate(44100); - writer.setSamplesPerFrame(1); - writer.setBitsPerSample(16); - float[] buffer = new float[sample.getNumFrames()]; - sample.read(buffer); - for (float v : buffer) { - writer.write(v); - } - writer.close(); - } - - public static void main(String[] args) { - try { - new LongEcho().test(); - } catch (IOException e) { - e.printStackTrace(); - } - } -} |