[opus] opus file trimming/clipping
ultymatt at gmail.com
Mon May 13 06:17:45 PDT 2013
Thanks for your responses. I am potentially interested in developing a
simple tool to trim a section of an Opus file, similar to the functionality
of vcut or sox. What I would need to know is an estimate of how involved
(difficulty and time commitment ) it would be for someone like me, with
very little experience working with audio or programming in C (although I
am much more comfortable with higher level languages). I have the source
code for vcut for reference -- assuming that a similar tool for Opus could
be based on this, could most of this be reused?
On Thu, May 9, 2013 at 7:17 PM, Ralph Giles <giles at thaumas.net> wrote:
> On 13-05-09 2:06 PM, Matt Ruck wrote:
> > Would trimming in another format like WAV or Ogg using existing tools,
> > and then encoding to Opus be a good way accomplish trimming a sound
> > track for Opus, and if so, what tools might be best (e.g., vcut was
> > previously mentioned)?
> Trimming WAV and then encoding to Opus would give you equivalent quality
> and is something which can be done with existing tools. You can trim a
> wave file with the command-line sox tool, or e.g. Audacity, a graphical
> audio editor.
> Something like 'sox in.wav trim 12:53.6 30 out.wav' will cut out 30
> seconds of audio starting at 12 minutes 53.6 seconds into the file.
> That said, if you want to try writing a lossless Opus trimmer, we'd be
> happy to help. That' something the Ogg Opus draft which hasn't seen any
> implementation feedback on.
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