[snipped]

    Hi,

    I want to split an audio file containing crow calls at points
    where no crow call is. The "silence" in between is not exactly
    "silence" but some low level noise.

[snipped]

    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.

[snipped]

    Jun 14, 2020, 04:43 by ash@suugaku.co.uk:

    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.

[snipped]

The package media-sound/mp3splt has use flag "flac". If set mp3splt can 
directly read and write flac files.

I have used mp3splt to successfully split podcast files for burning to a 
CD. It has many options that allow tuning of the split points. I found 
it a pain to setup, but now that setup in complete it works reliably.

Tom Naujokas (elu6-u259 at spamex.com)