Games that have higher frequency sounds and music should sound a bit better using 48k.
I don't have any games that use DTKMusic so that upsampling code untested. If you get strange sounds only at 48k try toggling dtk music to see if that isolates the problem and let me know.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6383 8ced0084-cf51-0410-be5f-012b33b47a6e
Windows audio backend with lower latency.
Audio never glitches on my machine but the number of buffers may be set too aggressively. If you run into problems try turning up NUM_BUFFERS in the h file and leave some feedback.
From my tests games seem to prefer filling the buffer with smaller chunks. For this to work the callback that fills the buffer needs to either spin or run async so I went with async.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6371 8ced0084-cf51-0410-be5f-012b33b47a6e
* Some fixes to linear interpolation
* Adds interpolation to ADPCM samples
* Relaxed a volume limit in ADPCM_Vol
Fixed:
- Frac rolls over one iteration before samplePos advances. Can introduce noise similar to flipping samples (1234 => 1214). Introduced oldFrac to fix this. This isn't as noticeable as it probably should be because of below.
- When samplePos doesn't advance it interpolates between two copies of the same sample which actually does nothing. Changed it to always use the current and next sample.
- When frac is 0 you should get 100% of yn2 instead of ~99% added a +yn2 to balance it.
Other changes:
- Added linear interpolation for ADPCM. Sounds like a good idea.
- Set ADPCM_Vol to clamp to x8000 instead of x4e20. Some games will play some sounds at x8000 volume anyways since the volume is applied before this. Lower limit can result in quiet music (x4e20) but some loud ambient sounds (0x8000).
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6041 8ced0084-cf51-0410-be5f-012b33b47a6e
mylek4