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bbbradsmith / nsfplay

Nintendo NES sound file NSF music player
https://bbbradsmith.github.io/nsfplay/
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Playback speed issues with stereo mode. (v2.5 beta) #40

Closed B00daW closed 1 year ago

B00daW commented 4 years ago

Brad,

I am using Wine v5.7, pulseaudio and a Realtek audio chipset with Linux v5.6.10 kernel. If "stereo mode" is enabled in v2.5 beta of NSFPlay then the audio file is played back at max speed. If it is disabled, it plays normally.

Oh! And stereo mode seems to be the default configuration on start-up. Until resolved, a dirty fix could be to not include it as a default option.

Please investigate. Thanks!

bbbradsmith commented 4 years ago

Stereo mode has to stay as the default option, mono causes problems for a lot of hardware (esp. people with surround sound setup).

As for the max speed issue, could you describe that in more detail? Is the pitch different? Is it exactly 2x as fast? If you save as WAV, is the output correct?

B00daW commented 4 years ago

https://cdn.discordapp.com/attachments/706602783154896988/706602844824010793/1942.mp3

So this is very bizarre. First bit of recording is with stereo mode off on 1942. Second bit is with stereo mode on. However, Audacity is recording my output very slowly @48KHz from 48KHz source, but when I hear it from NSFPlay it's very fast. May have to record directly from the headphones jack onto something else if you can't figure it out from this. :/

bbbradsmith commented 4 years ago

What exactly are you recording? The loopback from your audio drivers?

What happens when you save as WAV? (The red folder icon on NSFPlay's panel.) Is the audio still corrupted there, or is this only when outputting to audio drivers?

B00daW commented 4 years ago

https://cdn.discordapp.com/attachments/706602783154896988/706674611257081966/1942b.mp3

OK. Here is the audio recorded from the Linux laptop to another source.

Weird how before it was consistently working when stereo mode was turned off. Now it seems that it's always playing fast like this. Am I doing something wrong?

bbbradsmith commented 4 years ago

What happens when you export as WAV?

B00daW commented 4 years ago

https://cdn.discordapp.com/attachments/706602783154896988/706852316942434344/1942wav.mp3

Exporting to WAV has no issues.

bbbradsmith commented 4 years ago

Hmm, that MP3 is mono. Does the WAV export have any problem in stereo? (If WAV export works, that narrows down the possibilities a lot for what can be going wrong.)

B00daW commented 4 years ago

https://cdn.discordapp.com/attachments/706602783154896988/707218223275442286/3dbattleswav2.mp3

This is 3D Battles of World Runner in stereo mode. Both square channels are used in this one so it should output a stereo file. I don't notice much of a difference.

bbbradsmith commented 4 years ago

Thanks, that rules out a lot of possibilities.

bbbradsmith commented 1 year ago

With no other reports of this issue, I will close it for now. Please re-open if it resurfaces.