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/*
* Copyright 2022 Phil Burk
*
* 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.dsp;
public class AllPassDelay {
private float[] mBuffer;
private int mCursor;
private float mCoefficient = 0.65f;
public AllPassDelay(int length, float coefficient) {
mBuffer = new float[length];
mCoefficient = coefficient;
}
public float process(float input) {
float z = mBuffer[mCursor];
float x = input - (z * mCoefficient);
mBuffer[mCursor] = x;
mCursor++;
if (mCursor >= mBuffer.length) mCursor = 0;
return z + (x * mCoefficient);
}
}
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