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Update audio.md - downmixing wordage
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@r-htpc
r-htpc authored Dec 25, 2024
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Expand Up @@ -451,7 +451,7 @@ There are a number of ways to solve this, but there is usually not one silver bu

2. If you're NOT bitstreaming and you're using Windows, make sure the speaker config in Windows sound control panel is configured to match the speaker configuration you have or are mixing down to in #3.

3. If you're NOT bitstreaming, Downmix content that doesn't match your speaker configuration. [Downmixing](https://i.imgur.com/TbrG9m4.png) will try to mix the extra channels down into your current, supported number of channels. VLC, MPC-BE, Internal/External [LAV](https://github.com/Nevcairiel/LAVFilters/releases) filters, and [ffdshow](https://sourceforge.net/projects/ffdshow-tryout/files/Official%20releases/) all have Mixing options for this. Provide it with your speaker configuration and it will mix extra channels down to that config. You can even boost certain channels, like the Voice (center) channel in the mix. This is a good start when you know what channels you want to emphasize.
3. If you're NOT bitstreaming, Downmix content that doesn't match your speaker configuration. [Downmixing](https://i.imgur.com/TbrG9m4.png) will try to mix the extra channels down into your current, supported number of channels. VLC, media players using Internal/External [LAV](https://github.com/Nevcairiel/LAVFilters/releases) filters audio decoder, and [ffdshow](https://sourceforge.net/projects/ffdshow-tryout/files/Official%20releases/) all have Mixing options for this. Provide it with your speaker configuration and it will mix extra channels down to that config. You can even boost certain channels, like the Voice (center) channel in the mix. This is a good start when you know what channels you want to emphasize.

4. If you're NOT bitstreaming, Enable Dynamic Range Compression in your media player/middleware. DRC squashes or flattens your audio based on a ratio so the lows and highs are closer together. MPC's (and in turn LAV's) compressor is basic and controlled as a % lowered from 100%. You can start setting it to 50% for moderate compression and see how it sounds for you.
VLC's compressor gives you more control and you can start by setting it to a RMS/Attack/Release/Threshold/Ratio/Makeup of 0/1.5ms/300ms/-20dB/3.0:1/1dB/15dB. A higher ratio (anything > 8.0:1) will compress more and is akin to a limiter.
Expand Down Expand Up @@ -957,5 +957,5 @@ Analog: Custom lengths/high quality: [Blue Jeans](https://www.bluejeanscable.com

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*This page was last updated on 2024-12-20*
*This page was last updated on 2024-12-24*

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