1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
5 An audio time-stretching and pitch-shifting library.
6 Copyright 2007-2008 Chris Cannam.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2 of the
11 License, or (at your option) any later version. See the file
12 COPYING included with this distribution for more information.
15 #include "SilentAudioCurve.h"
22 SilentAudioCurve::SilentAudioCurve(size_t sampleRate, size_t windowSize) :
23 AudioCurve(sampleRate, windowSize)
27 SilentAudioCurve::~SilentAudioCurve()
32 SilentAudioCurve::reset()
37 SilentAudioCurve::setWindowSize(size_t newSize)
39 m_windowSize = newSize;
43 SilentAudioCurve::process(const float *R__ mag, size_t)
45 const int hs = m_windowSize / 2;
46 static float threshold = powf(10.f, -6);
48 for (int i = 0; i <= hs; ++i) {
49 if (mag[i] > threshold) return 0.f;
56 SilentAudioCurve::processDouble(const double *R__ mag, size_t)
58 const int hs = m_windowSize / 2;
59 static double threshold = pow(10.0, -6);
61 for (int i = 0; i <= hs; ++i) {
62 if (mag[i] > threshold) return 0.f;