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wavlooper [ options ] input_file output_file loop_start [ loop_end ]
Wavlooper takes a Microsoft PCM WAVE file, and creates a new file with an intro, looped part repeated a specified number of times, and the outro.
Loop points are given in samples from the beginning of the file.
- -h, --help
- Show help. Do nothing else.
- -l, --loops integer
- (default: 2) Number of times to repeat the looped part. This includes the first loop.
- -f, --fade float
(default: 15) Number of seconds to fade out at the end. The fadeout takes place after the last iteration of looping, so the fade will be over the start part of the loop audio.
If the specified fadeout is longer than the loop, the fadeout time will be scaled to the length of one loop. (so effectively the audio will loop loops + 1 times)
- input_file
- PCM WAVE file to be read. stdin is not currently supported.
- output_file
- PCM WAVE file to be written. stdout is not currently supported.
- loop_start (integer)
- Start sample of the loop audio, from the start of the file.
- loop_end (integer)
- End sample of the loop audio, from the start of the file. If specified and loop_end is not the last sample of the file, the audio data after this point will be appended to the end of the looped file, and --fade will be ignored.
Only 16-bit signed PCM files are supported. It should fail gracefully with unsupported input, but I'm sure there are exceptions. ;)