ipnorm
Functions
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int main(int argc, char *argv[])
ipnorm [ option ] [ infile ]
-m int
order of mel-cepstral coefficients \((0 \le M)\)
infile str
double-type power-normalized mel-cepstral coefficients
stdout
double-type mel-cepstral coefficients
- Parameters:
argc – [in] Number of arguments.
argv – [in] Argument vector.
- Returns:
0 on success, 1 on failure.
See also
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class MelCepstrumInversePowerNormalization
Convert power-normalized mel-cepstral coefficients to mel-cepstral ones.
The input are the \(M\)-th order power-normalized mel-cepstral coefficients:
\[ \begin{array}{ccccc} \tilde{c}'(0), & \tilde{c}'(1), & \ldots, & \tilde{c}'(M), \end{array} \]and \(\log P\) where \(P\) is the power and the output is the \(M\)-th order mel-cepstral coefficients:\[ \begin{array}{cccc} \tilde{c}(0), & \tilde{c}(1), & \ldots, & \tilde{c}(M), \end{array} \]where\[\begin{split} \tilde{c}(m) = \left\{ \begin{array}{ll} \tilde{c}'(0) + \log \sqrt{P}, & m = 0 \\ \tilde{c}'(m). & 1 \le m \le M \end{array} \right. \end{split}\]Public Functions
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explicit MelCepstrumInversePowerNormalization(int num_order)
- Parameters:
num_order – [in] Order of coefficients, \(M\).
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inline int GetNumOrder() const
- Returns:
Order of coefficients.
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inline bool IsValid() const
- Returns:
True if this object is valid.
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bool Run(const std::vector<double> &power_normalized_mel_cepstrum, double power, std::vector<double> *mel_cepstrum) const
- Parameters:
power_normalized_mel_cepstrum – [in] \(M\)-th order power-normalized mel-cepstral coefficients.
power – [in] Logarithm of power.
mel_cepstrum – [out] \(M\)-th order mel-cepstral coefficients.
- Returns:
True on success, false on failure.
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bool Run(std::vector<double> *input_and_output, double power) const
- Parameters:
input_and_output – [inout] \(M\)-th order coefficients.
power – [in] Logarithm of power.
- Returns:
True on success, false on failure.
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explicit MelCepstrumInversePowerNormalization(int num_order)