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10 September 2017, 13:19
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#1 |
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Registered User
Join Date: Jul 2008
Location: Netherlands
Posts: 485
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Question on audio settings: Should I use UAE "sinc" or OpenAL "4-point sync" or both?
Hi,
I've been tinkering a bit with some sound settings in the OpenAL Soft configuration menu. In FS-UAE I can choose "sinc" for sound interpolation ("uae_sound_interpol = sinc"). But in the OpenAL configuration menu I can also choose "sinc" as resampler quality: - 4-point sinc - bandlimited sinc See attached picture with the "4-point sinc" selected. Now what setting should I choose: disable the "sinc" filter in UAE and enable 4-point sinc in OpenAL, or maybe the other way around? Or should I enable both the "sinc" filter in UAE and enabled the 4-point sinc resampler in OpenAL? I'm a bit confused at which stage these different filters / resamplers get applied, so hopefully someone can shed some light? Last edited by Dr.Venom; 15 May 2019 at 20:32. |
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13 September 2017, 21:06
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#2 |
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FS-UAE Developer
Join Date: Dec 2011
Location: Førde, Norway
Age: 43
Posts: 4,043
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Resampling is used when e.g. frequency does not match. So presumably, when FS-UAE already outputs what OpenAL wants (e.g. 48000 Hz or 44100 Hz), the OpenAl resampling setting do not have any effect.
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13 September 2017, 21:07
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#3 |
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FS-UAE Developer
Join Date: Dec 2011
Location: Førde, Norway
Age: 43
Posts: 4,043
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Disabling interpolation in FS-UAE will decrease audio quality since FS-UAE will always perform resampling to get a fixed audio output frequency.
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14 September 2017, 08:22
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#4 | ||
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Registered User
Join Date: Jul 2008
Location: Netherlands
Posts: 485
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Quote:
Quote:
Last edited by Dr.Venom; 14 September 2017 at 08:31. |
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