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demozoo / cowbell

A universal web audio player for demoscene / tracker music
https://demozoo.github.io/cowbell/
BSD 3-Clause "New" or "Revised" License
75 stars 6 forks source link

ASAP player should not assume 44100Hz playback #22

Closed Some1NamedNate closed 10 months ago

Some1NamedNate commented 5 years ago

Whenever an 8-bit Atari chiptune is played, its playback rate is forced to 60hz. Can you have it play back 50hz chiptunes?

gasman commented 5 years ago

Hi @Some1NamedNate - please can you give more details, including an example of a track that isn't being played correctly?

Also, I'm not sure what the relevance of ASAP version 4.0 is - do you have information to indicate that this bug is fixed in that version? I can't see anything relevant on http://asap.sourceforge.net/news.html.

Some1NamedNate commented 5 years ago

When you play a PAL (50Hz) SAP tune on Demozoo like this one, it's being played back to 60Hz (NTSC). When listened to with ASAP itself (i.e., foobar2000 w/ the ASAP plugin), it plays back at 50hz.

gasman commented 5 years ago

The track you link to sounds the same when I play it through Demozoo and through the ASAP VLC plugin (on Mac OS). What's the exact difference you're hearing - just different tempo, or different pitch as well?

I'm wondering if the real problem is that your browser is using a 48000Hz sample rate natively, rather than 44100Hz - most of Cowbell's backends will work with whatever your browser provides, but I see that the SAP code has some hard-coded references to 44100 in it. If you look in your browser's Javascript console, do you get a "Warning: sample rate mismatch" message?

pfusik commented 1 year ago

@epi has contributed sample rate configuration. I'm going to release it in ASAP 6.0.0 later this summer.