Re: Win11 ??
"David McClain (as dbm at refined-audiometrics dot com)" <[email protected]>
| Newsgroups | gmane.lisp.lispworks.general |
|---|---|
| Message-ID | <[email protected]> |
Well, you might be correct about that. I think I’m using the old(est) M$ MME API. I can certainly try decimating for myself, probably best handled down in the C routine taking in new buffers at 48 kHz, rather than trying to have Lisp respond quickly enough. But honestly, would you even notice an audio disruption occurring every 76 minutes? It might be just a short audio crack, not noticeable to human listening. I would notice the phase disruption in my data, but my ears might not. - DM > On Sep 3, 2025, at 06:13, Yuri Davidovsky <[email protected]> wrote: > > Just a stab: have you tried to decimate the signal yourself rather than rely on windows to do that? > > 48kHz is handled on modern machines quite effortlessly, otherwise you would be getting regular audio dropouts when listening to music, youtube streams, etc. which typically does not happen (or it happens for reasons of network issues and such, which is probably not relevant here). So if the problem does not affect the audio on the machine, then it might be something you are doing to the data stream specifically. > > Since the only thing that is being done by the OS to the signal is decimation (from my understanding of your setup), then it could probably be the weak link. > > > >> On 3 Sep 2025, at 14:39, David McClain (as dbm at refined-audiometrics dot com) <[email protected]> wrote: >> >> Sorry… my incoming data sample rate is 48 kHz, but I asked Win11 to downsample the data coming into the collection buffers to 8 kHz. The data is completely band-limited to 3 kHz, so no problem there. > _______________________________________________ Lisp Hug - the mailing list for LispWorks users [email protected] http://www.lispworks.com/support/lisp-hug.html