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Clarify text about overall stretch factor

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This commit is contained in:
Chris Cannam
2020-09-22 10:32:00 +01:00
parent d65f5ebe34
commit fddcfadd64
1 changed files with 5 additions and 3 deletions
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8
main/main.cpp
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@@ -241,18 +241,20 @@ int main(int argc, char **argv)
cerr << " A time map (or key-frame map) file contains a series of lines, each with two" << endl;
cerr << " sample frame numbers separated by a single space. These are source and" << endl;
cerr << " target frames for fixed time points within the audio data, defining a varying" << endl;
cerr << " stretch factor through the audio. When supplying a time map, you must specify" << endl;
cerr << " an overall stretch factor using -t, -T, or -D as well." << endl;
cerr << " stretch factor through the audio. When supplying a time map you must specify" << endl;
cerr << " an overall stretch factor using -t, -T, or -D as well, to determine the" << endl;
cerr << " total output duration." << endl;
cerr << endl;
cerr << " --pitchmap <F> Use file F as the source for pitch map" << endl;
cerr << endl;
cerr << " A pitch map file contains a series of lines, each with two values: a" << endl;
cerr << " A pitch map file contains a series of lines, each with two values: the input" << endl;
cerr << " sample frame number and a pitch offset in semitones, separated by a single" << endl;
cerr << " space. These specify a varying pitch factor through the audio. The offsets" << endl;
cerr << " are all relative to an initial offset specified by the pitch or frequency" << endl;
cerr << " option, or relative to no shift if neither was specified. Offsets are" << endl;
cerr << " not cumulative. This option implies realtime mode (-R) and also enables a" << endl;
cerr << " high-consistency pitch shifting mode, appropriate for dynamic pitch changes." << endl;
cerr << " Because of the use of realtime mode, the overall duration will not be exact." << endl;
cerr << endl;
cerr << " --freqmap <F> Use file F as the source for frequency map" << endl;
cerr << endl;