diff options
Diffstat (limited to 'tests/com/jsyn/unitgen/TestMath.java')
| -rw-r--r-- | tests/com/jsyn/unitgen/TestMath.java | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/tests/com/jsyn/unitgen/TestMath.java b/tests/com/jsyn/unitgen/TestMath.java index 0fde9b5..cae1dea 100644 --- a/tests/com/jsyn/unitgen/TestMath.java +++ b/tests/com/jsyn/unitgen/TestMath.java @@ -4,9 +4,9 @@ * 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. @@ -19,6 +19,7 @@ package com.jsyn.unitgen; import junit.framework.TestCase; import com.jsyn.engine.SynthesisEngine; +import com.softsynth.math.AudioMath; /** * @author Phil Burk, (C) 2009 Mobileer Inc @@ -388,5 +389,25 @@ public class TestMath extends TestCase { assertEquals("PowerOfTwo", Math.pow(2.0, in), powerOfTwo.output.getValue(), 0.001); } } + public void testPitchToFrequency() { + PitchToFrequency ugen = new PitchToFrequency(); + ugen.setSynthesisEngine(synthesisEngine); + final double smallValue = -1.5308084989341915E-17; + double values[] = { + 49.0, 49.5, 50.0 + smallValue, + 60.0 -smallValue, + 79.2, 12.9, 118.973 + }; + // Sanity check AudioMath + assertEquals("PitchToFrequency", 440.0, AudioMath.pitchToFrequency(69), 0.001); + assertEquals("PitchToFrequency", 660.0, AudioMath.pitchToFrequency(69+7.02), 0.1); + + for (double pitch : values) { + ugen.input.setValueInternal(pitch); + ugen.generate(); + assertEquals("PitchToFrequency", AudioMath.pitchToFrequency(pitch), + ugen.output.getValue(), 0.001); + } + } } |