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MediaPortal 1
Development
General Development (no feature request here!)
MediaPortal Audio renderer - better video playback quality
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<blockquote data-quote="tourettes" data-source="post: 650435" data-attributes="member: 10858"><p><strong>Re: AW: MediaPortal Audio renderer - better video playback quality</strong></p><p></p><p></p><p></p><p>Digital volume control is always a compromise. If you would reduce the volume to 50% then you would be taking the half of the signal to noise ration. Not a good thing for quality point of view. If you accept such, then few dropped frames is not a big deal either and default direct sound audio renderer is a usable solution.</p><p></p><p></p><p></p><p>It is not the volume conrol. It is doable on the renderer side, but the MediaPortal C# side code itself is the issue. It isn't using the IBasicAudio interface so the renderer cannot see any volume conrol request since the OS mixer is used directly (and of course that will fail wehn it comes to WASAPI exclusive).</p><p></p><p>So, writing a hack where audio renderer would control volume from a different filter wouldn't help the issue at all.</p><p></p><p>If this audio renderer would be used in the official 1.2.0 (or any future 1.x.x release of MP1) then the IBasicAudio interface behavior would of cource be modified, but as long as this renderer is for testing only in MP1 (and allowing geeks to have perfect video playback <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />) and targeting MP2 then I won't make any changes to MP1 code (since keeping the test binaries would become a daily job for me - rebuilding the core for every SVN revision).</p></blockquote><p></p>
[QUOTE="tourettes, post: 650435, member: 10858"] [b]Re: AW: MediaPortal Audio renderer - better video playback quality[/b] Digital volume control is always a compromise. If you would reduce the volume to 50% then you would be taking the half of the signal to noise ration. Not a good thing for quality point of view. If you accept such, then few dropped frames is not a big deal either and default direct sound audio renderer is a usable solution. It is not the volume conrol. It is doable on the renderer side, but the MediaPortal C# side code itself is the issue. It isn't using the IBasicAudio interface so the renderer cannot see any volume conrol request since the OS mixer is used directly (and of course that will fail wehn it comes to WASAPI exclusive). So, writing a hack where audio renderer would control volume from a different filter wouldn't help the issue at all. If this audio renderer would be used in the official 1.2.0 (or any future 1.x.x release of MP1) then the IBasicAudio interface behavior would of cource be modified, but as long as this renderer is for testing only in MP1 (and allowing geeks to have perfect video playback :)) and targeting MP2 then I won't make any changes to MP1 code (since keeping the test binaries would become a daily job for me - rebuilding the core for every SVN revision). [/QUOTE]
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MediaPortal 1
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MediaPortal Audio renderer - better video playback quality
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