CPAN has enough to accomplish your task.

The adding a second of silence part can easily be done with Audio::Wav::Read and maybe Audio::Wav::Write. One second's worth of silence would be represented as sampling rate x channels 0 samples at the beginning of the wav.

As for encoding an MP3, you could use Audio::MPEG which interfaces with LAME's library to encode MP3s.

update: minor repharsing in second paragraph.

In reply to Re: Sound Editing by wog
in thread Sound Editing by el_Plago

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