> The aim is to generate audiofile with
one/few-sample-length impulse inside
> silence. Is there suitable software to do the job?
If you don't like programming, you can do it in Audacity!
Open Audacity and make two tracks. Generate the required length of
silence in one, and a *very* short tone (eg a square wave) in the
other. Zoom in till you can see the individual samples, and
copy-and-paste 1 sample from the square wave into the silence.
Good luck,
James.