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Overview
Comment: | add log transform option |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk | master |
Files: | files | file ages | folders |
SHA3-256: |
17f3ce2f1e4ee55d233691a085c87151 |
User & Date: | jesse.mcclure@umassmed.edu 2016-05-18 14:00:49 |
Context
2017-08-17
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14:31 | Cleaning up for new python version check-in: 42a96c2c60 user: jmcclure tags: trunk, master | |
2016-05-18
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14:00 | add log transform option check-in: 17f3ce2f1e user: jesse.mcclure@umassmed.edu tags: trunk, master | |
2016-02-10
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19:14 | added logFreq option to log transform frequencies - I advise *against* using this option check-in: 4fd5b5e5b0 user: jesse.mcclure@umassmed.edu tags: trunk, master | |
Changes
Changes to share/config.
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35 36 37 38 39 40 41 | set samples = 256 set bandpass = 1.25 10.0 set scale = 8 set window = hanning set fontFamily = droid sans set fontSize = 14 set help = xterm -e man fex-help | | | | < | | 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | set samples = 256 set bandpass = 1.25 10.0 set scale = 8 set window = hanning set fontFamily = droid sans set fontSize = 14 set help = xterm -e man fex-help ## CAUTION: logFreq was added by user request. While the option will log (base 10) ## transform frequencies. I have not done any testing on whether this produces ## reasonable results. Using this option is discouraged # until it has been more ## well tested. set logFreq = false ## Colors ## spectrogram: background spectrogram ## threshold: points included in the signal ## points: points included in the current excursion calculation ## lines: lines connecting points in the current calculation |
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Changes to src/spectro.c.
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142 143 144 145 146 147 148 | if (spect->fft->mask[i][j]) continue; if (spect->fft->amp[i][j] > spect->fft->amp[i][f] || !f) f = j; } /* add points and do calculations if f is above threshold */ if (f > 0 && spect->fft->amp[i][f] > conf.thresh) { if (lt != spect->fft->time[0]) { | < | < | | 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | if (spect->fft->mask[i][j]) continue; if (spect->fft->amp[i][j] > spect->fft->amp[i][f] || !f) f = j; } /* add points and do calculations if f is above threshold */ if (f > 0 && spect->fft->amp[i][f] > conf.thresh) { if (lt != spect->fft->time[0]) { if (conf.log10) spect->pex += hypot(log10(spect->fft->freq[f]) - log10(lf),spect->fft->time[i] - lt); else spect->pex += hypot(spect->fft->freq[f] - lf,spect->fft->time[i] - lt); spect->tex += spect->fft->time[i] - lt; } lt = spect->fft->time[i]; lf = spect->fft->freq[f]; cairo_line_to(l, (i - spect->fft_x) * conf.scale + conf.scale / 2, (f - spect->fft_y) * conf.scale + conf.scale / 2); |
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