5 ms·
That CPU use is resampling to match the sound card rate. If PA isn't doing it, your apps will be instead. Either way, it's going to take some cycles.
by ilikejam 10y ago
That CPU use is resampling to match the sound card rate. If PA isn't doing it, your apps will be instead. Either way, it's going to take some cycles.
- esaym 10y agoBut don't some card have hardware resampling? Seems my sound blaster audigy from the early 2000's advertised something like that. If resampling is such a hog, why can't the sound card do it? Seems like thats the whole point?
- krakensden 10y agoYes. No computers ship with them, and haven't since the 90s. They are a super niche product.
- esaym 10y ago>If PA isn't doing it, your apps will be instead. You were right about that, I tested it in another comment on here. I thought that resampling would happen within a kernel driver or something. But no, apparently when an app uses the alsa library, the functions that resample will happen within the app generating the sound (and thus in userland).