Changeset a82cedc for src/spectral/fft.h
- Timestamp:
- Sep 2, 2015, 12:14:34 PM (9 years ago)
- Branches:
- feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+
- Children:
- e06ac8f
- Parents:
- 0683ee2
- File:
-
- 1 edited
-
src/spectral/fft.h (modified) (7 diffs)
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src/spectral/fft.h
r0683ee2 ra82cedc 19 19 */ 20 20 21 /** \file 21 /** \file 22 22 23 23 Fast Fourier Transform … … 40 40 41 41 /** FFT object 42 42 43 43 This object computes forward and backward FFTs. 44 44 … … 52 52 */ 53 53 aubio_fft_t * new_aubio_fft (uint_t size); 54 /** delete FFT object 54 /** delete FFT object 55 55 56 56 \param s fft object as returned by new_aubio_fft … … 62 62 63 63 \param s fft object as returned by new_aubio_fft 64 \param input input signal 65 \param spectrum output spectrum 64 \param input input signal 65 \param spectrum output spectrum 66 66 67 67 */ … … 70 70 71 71 \param s fft object as returned by new_aubio_fft 72 \param spectrum input spectrum 73 \param output output signal 72 \param spectrum input spectrum 73 \param output output signal 74 74 75 75 */ … … 79 79 80 80 \param s fft object as returned by new_aubio_fft 81 \param input real input signal 81 \param input real input signal 82 82 \param compspec complex output fft real/imag 83 83 … … 87 87 88 88 \param s fft object as returned by new_aubio_fft 89 \param compspec real/imag input fft array 90 \param output real output array 89 \param compspec real/imag input fft array 90 \param output real output array 91 91 92 92 */ 93 93 void aubio_fft_rdo_complex (aubio_fft_t *s, fvec_t * compspec, fvec_t * output); 94 94 95 /** convert real/imag spectrum to norm/phas spectrum 95 /** convert real/imag spectrum to norm/phas spectrum 96 96 97 \param compspec real/imag input fft array 98 \param spectrum cvec norm/phas output array 97 \param compspec real/imag input fft array 98 \param spectrum cvec norm/phas output array 99 99 100 100 */ 101 101 void aubio_fft_get_spectrum(fvec_t * compspec, cvec_t * spectrum); 102 /** convert real/imag spectrum to norm/phas spectrum 102 /** convert real/imag spectrum to norm/phas spectrum 103 103 104 \param compspec real/imag input fft array 105 \param spectrum cvec norm/phas output array 104 \param compspec real/imag input fft array 105 \param spectrum cvec norm/phas output array 106 106 107 107 */ 108 108 void aubio_fft_get_realimag(cvec_t * spectrum, fvec_t * compspec); 109 109 110 /** compute phas spectrum from real/imag parts 110 /** compute phas spectrum from real/imag parts 111 111 112 \param compspec real/imag input fft array 113 \param spectrum cvec norm/phas output array 112 \param compspec real/imag input fft array 113 \param spectrum cvec norm/phas output array 114 114 115 115 */ 116 116 void aubio_fft_get_phas(fvec_t * compspec, cvec_t * spectrum); 117 /** compute imaginary part from the norm/phas cvec 117 /** compute imaginary part from the norm/phas cvec 118 118 119 \param spectrum norm/phas input array 120 \param compspec real/imag output fft array 119 \param spectrum norm/phas input array 120 \param compspec real/imag output fft array 121 121 122 122 */ 123 123 void aubio_fft_get_imag(cvec_t * spectrum, fvec_t * compspec); 124 124 125 /** compute norm component from real/imag parts 125 /** compute norm component from real/imag parts 126 126 127 \param compspec real/imag input fft array 128 \param spectrum cvec norm/phas output array 127 \param compspec real/imag input fft array 128 \param spectrum cvec norm/phas output array 129 129 130 130 */ 131 131 void aubio_fft_get_norm(fvec_t * compspec, cvec_t * spectrum); 132 /** compute real part from norm/phas components 132 /** compute real part from norm/phas components 133 133 134 \param spectrum norm/phas input array 135 \param compspec real/imag output fft array 134 \param spectrum norm/phas input array 135 \param compspec real/imag output fft array 136 136 137 137 */
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