Mercurial > hg > qm-dsp
changeset 235:83ccb61f9c0c
* Fixes to chromagram extents
| author | Chris Cannam <c.cannam@qmul.ac.uk> |
|---|---|
| date | Fri, 30 Mar 2007 16:20:36 +0000 |
| parents | 60bbe2d98066 |
| children | ac95b396c8c3 |
| files | dsp/keydetection/GetKeyMode.cpp |
| diffstat | 1 files changed, 17 insertions(+), 3 deletions(-) [+] |
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--- a/dsp/keydetection/GetKeyMode.cpp Mon Jan 22 17:32:09 2007 +0000 +++ b/dsp/keydetection/GetKeyMode.cpp Fri Mar 30 16:20:36 2007 +0000 @@ -50,10 +50,24 @@ // m_ChromaConfig.min = 111.0641; // m_ChromaConfig.max = 1.7770e+003; +// m_ChromaConfig.min = Pitch::getFrequencyForPitch +// (12, 0, tuningFrequency); +// m_ChromaConfig.max = Pitch::getFrequencyForPitch +// (96, 0, tuningFrequency); + + // The chromagram minimum pitch is 1/6 of a tone above A, two + // octaves below middle C (for a 36-bin chromagram). The + // maximum pitch is four octaves higher. + m_ChromaConfig.min = Pitch::getFrequencyForPitch - (12, 0, tuningFrequency); - m_ChromaConfig.max = Pitch::getFrequencyForPitch - (96, 0, tuningFrequency); + (45, 1.f / 3.f, tuningFrequency); + + m_ChromaConfig.max = m_ChromaConfig.min * 2; + m_ChromaConfig.max = m_ChromaConfig.max * 2; + m_ChromaConfig.max = m_ChromaConfig.max * 2; + m_ChromaConfig.max = m_ChromaConfig.max * 2; + + std::cerr << "Chromagram range: " << m_ChromaConfig.min << " -> " << m_ChromaConfig.max << std::endl; m_ChromaConfig.BPO = 36; m_ChromaConfig.CQThresh = 0.0054;