> > >> I'll try to hack the file and see what happens.
> >
> > You could also try using the --ignore-length command line option.
>
> I'll give it a go and report back.

$ sox -V --ignore-length gqrx_20211006_081931_120250000.wav gqrx_20211006_081931_120250000-trim.wav silence -l 1 0.1 1% -1 2.0 1%
sox:      SoX v14.4.2
sox INFO formats: detected file format type `wav'

Input File     : 'gqrx_20211006_081931_120250000.wav'
Channels       : 2
Sample Rate    : 48000
Precision      : 16-bit
Sample Encoding: 16-bit Signed Integer PCM
Endian Type    : little
Reverse Nibbles: no
Reverse Bits   : no

sox INFO sox: Overwriting `gqrx_20211006_081931_120250000-trim.wav'

Output File    : 'gqrx_20211006_081931_120250000-trim.wav'
Channels       : 2
Sample Rate    : 48000
Precision      : 16-bit
Sample Encoding: 16-bit Signed Integer PCM
Endian Type    : little
Reverse Nibbles: no
Reverse Bits   : no
Comment        : 'Processed by SoX'

sox INFO sox: effects chain: input        48000Hz  2 channels
sox INFO sox: effects chain: silence      48000Hz  2 channels
sox INFO sox: effects chain: output       48000Hz  2 channels
ljkenny:~$ ls -l gqrx_20211006_081931_120250000-trim.wav

 -rw-r----- 1 ljkenny primarygroup 44 Oct  7 08:43 gqrx_20211006_081931_120250000-trim.wav