Re: [gentoo-user] [OT] splitting audio file at points of silence ?

[tuxic@posteo.de]

Hi Dale, hi Ashley,

thanks for all the help and informations! :)

In the meanwhile I found another way to split that file "as is"
(flac remains flac) with audacity.

Audacity contains a "sound finder" and "silence finder" analysis
tool, with which it is possible to set marks/regions in the file,
which mark sound and silence.

The tools are configurable. This way one can tinker with the
parameters until a near perfect match as acchieved and then
write out the files with File->Export->Multiple.

The visual representation of sound and silence is by far better
then test-listening all created files after each iteration with
any cli solution.

Cheers!
Meino




On 06/14 09:43, Ashley Dixon wrote:
> On Sun, Jun 14, 2020 at 10:19:05AM +0200, tuxic@posteo.de wrote:
> > Searching the internet for "split audio at silence" and similiar
> > gives me this link
> > https://unix.stackexchange.com/questions/318164/
> > 
> > which uses a program called "silence" to detect the silence.
> > 
> > Unfortunately I can't figure out, what package contains that program
> > or from where I can download that program.
> 
> There is no binary in Portage providing the binary "silence":
> 
>         $ e-file silence
> 
>         *  net-irc/irssi
>                Available Versions:	1.0.0 1.0.7 1.2.1 1.2.2 
>                Homepage:		https://irssi.org/
>                Description:		A modular textUI IRC client with IPv6
>                                         support
>                Matched Files:		/usr/share/irssi/help/silence;
> 
> However, there is `mp3splt`,  provided  in  the  package  `media-sound/mp3splt`.
> It's described in the question provided as a comment to your  UNIX  S.E.\  link.
> [1]
> 
> > The input audio is a flac file  and I don't want to convert this into
> > any lossy audio format to preserve as much as possible of the signal.
> 
> mp3splt primarily works with mp3s, but can also support  ogg,  which  can  be  a
> container format for flac.  I've never used it myself, but it  looks  promising,
> providing you are OK with placing your flacs inside an ogg.
> 
> Hope this helps.
> 
> [1] https://askubuntu.com/questions/27574
> 
> -- 
> 
> Ashley Dixon
> suugaku.co.uk
> 
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