2022-03-24.log

+ Jadek (~Jadek@87-207-204-28.dynamic.chello.pl)08:23
minuteJadek: ?12:19
minuteit just takes some time to print all the labels and everything, the first batch is 350 units12:19
minute_Bnu: do you know why ahi/the driver eats so much cpu just when playing back audio?12:20
minutelooks like 48khz 16bit is too slow on Z2 mode in a3000/03012:21
Jadekminute I'm just asking because someone wrote that he received information on the e-mail about the shipment. And I haven't gotten anything yet. I just wanted to ask.12:24
minuteJadek: it's a process12:24
Jadekminute Ok, thanks for the information. You're doing a great job!13:06
_BnuUhhh, because AHI uses a lot of CPU? I guess.13:11
_BnuDepends on which version you use as well.13:11
_BnuBut like.13:11
_Bnu48KHz 16-bit is by no means a normal thing to use and expect to have any CPU left over.13:11
_BnuI typically pick something like 11KHz 8-bit or so.13:11
_BnuIf you can manage to get hardware mixing working, you could handle that on the ZZ9000 instead of on the 68k CPU, but by default AHI does everything itself.13:12
_BnuAlso, AHI 6.0 uses way more CPU than 4.18, but I'm pretty sure I mentioned that already.13:13
_BnuThe PiStorm can handle it, but that's running at an equivalent of a 125MHz 68030, or more if it's on Emu68.13:15
minute_Bnu: ok, understood! i'm using 4.18, and also wrote in the AX manual that we don't recommend 613:22
minute_Bnu: i was just thinking, if it would just pipe the audio through, it's only 48000*2*2 bytes per second, i.e. 187.5 kilobytes/s, Z2 should be able to handle that13:23
minuteit works fine with Z3 (it just hogs the CPU a *lot*)13:23
minute(a 68030/25)13:24
minutei'm wondering if AHI is trying to do in-place operations on the audio buffer13:24
minutei.e. reading or writing multiple times instead of just copying one big burst13:24
- Jadek (QUIT: Quit: Connection closed) (~Jadek@87-207-204-28.dynamic.chello.pl)14:08
_BnuAHI is always doing mixing and resampling, yes.14:12
_BnuYou have to tell AHI if you want to do it yourself, but it doesn't appear to work.14:12
_BnuToni Wilen said he never got it to work either, so it's like... yep.14:12
_BnuBut even then.14:14
_BnuYou're not in an RTG mode, are you?14:14
_BnuBecause that'll use a lot more bandwidth than anything AHI can do if there's anything updating on the screen.14:15
_Bnu(And Z2 doesn't even have enough bandwidth for 320x200x8 60Hz.)14:16
+ Jadek (~Jadek@87-207-204-28.dynamic.chello.pl)14:18
minute_Bnu: totally in RTG mode ^^14:26
minutebut i can check that, good idea14:26
- Jadek (QUIT: Quit: Connection closed) (~Jadek@87-207-204-28.dynamic.chello.pl)20:57

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