comparison dsp/chromagram/ConstantQ.cpp @ 468:a72d98f8baa3

Revise mechanism for extending chromagram to round number of octaves -
do it only in the chromagram itself, so that we can still create deviant
constant-Q spectrograms if desired

     m_FMax = Config.max;		// max freq
     m_BPO = Config.BPO;		// bins per octave
     m_CQThresh = Config.CQThresh;// ConstantQ threshold for kernel generation
 
     m_dQ = 1/(pow(2,(1/(double)m_BPO))-1);	// Work out Q value for Filter bank
-    m_uK = m_BPO * int(ceil(log(m_FMax/m_FMin)/log(2.0)));	// No. of constant Q bins, extended to a full octave
+    m_uK = (unsigned int) ceil(m_BPO * log(m_FMax/m_FMin)/log(2.0));	// No. of constant Q bins
 
 //    std::cerr << "ConstantQ::initialise: rate = " << m_FS << ", fmin = " << m_FMin << ", fmax = " << m_FMax << ", bpo = " << m_BPO << ", K = " << m_uK << ", Q = " << m_dQ << std::endl;
 
     // work out length of fft required for this constant Q Filter bank
     m_FFTLength = (int) pow(2, nextpow2(ceil( m_dQ*m_FS/m_FMin )));
 
-    m_hop = m_FFTLength/8; // <------ hop size is window length divided by 32
+    m_hop = m_FFTLength/8;
 
 //    std::cerr << "ConstantQ::initialise: -> fft length = " << m_FFTLength << ", hop = " << m_hop << std::endl;
 
     // allocate memory for cqdata
     m_CQdata = new double [2*m_uK];