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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2021 Ryan Challinor (contact: awwbees@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
//
// MultiBandTracker.cpp
// modularSynth
//
// Created by Ryan Challinor on 2/28/14.
//
//
#include "MultiBandTracker.h"
#include "SynthGlobals.h"
#include "Profiler.h"
MultiBandTracker::MultiBandTracker()
{
SetNumBands(8);
mWorkBuffer = new float[gBufferSize];
}
MultiBandTracker::~MultiBandTracker()
{
delete[] mWorkBuffer;
}
void MultiBandTracker::SetRange(float minFreq, float maxFreq)
{
for (int i = 0; i < mNumBands; ++i)
{
float a = float(i) / mNumBands;
float f = mMinFreq * powf(mMaxFreq / mMinFreq, a);
mBands[i].SetCrossoverFreq(f);
}
}
void MultiBandTracker::SetNumBands(int numBands)
{
mMutex.lock();
mNumBands = numBands;
mBands.resize(numBands);
mPeaks.resize(numBands);
SetRange(mMinFreq, mMaxFreq);
mMutex.unlock();
}
void MultiBandTracker::Process(float* buffer, int bufferSize)
{
PROFILER(MultiBandTracker);
mMutex.lock();
for (int i = 0; i < bufferSize; ++i)
{
float lower;
float highLeftover = buffer[i];
for (int j = 0; j < mNumBands; ++j)
{
mBands[j].ProcessSample(highLeftover, lower, highLeftover);
mPeaks[j].Process(&lower, 1);
}
}
mMutex.unlock();
}
float MultiBandTracker::GetBand(int idx)
{
return mPeaks[idx].GetPeak();
}
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