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https://github.com/FNA-XNA/FAudio/issues/183 --- src/FAudio_platform_sdl2.c.orig 2020-04-01 14:55:30 UTC +++ src/FAudio_platform_sdl2.c @@ -100,6 +100,18 @@ void FAudio_PlatformInit( want.samples = want.freq / 100; } + /* SDL audio with arts/dsp backends expect ^2, so round up. + * For 48KHz this should be 512. + * https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2 + */ + want.samples--; + want.samples |= want.samples >> 1; + want.samples |= want.samples >> 2; + want.samples |= want.samples >> 4; + want.samples |= want.samples >> 8; + want.samples |= want.samples >> 16; + want.samples++; + /* Open the device (or at least try to) */ iosretry: device = SDL_OpenAudioDevice(