It's better to have Mixxx sending the sound card a signal with a high signal-to-noise ratio than turn the gain down in Mixxx and send a signal with a lower S/N ratio to the sound card. To reach a comparable volume, the signal would have to be amplified somewhere down the line (sound card, mixer, amplifier, or whatever), which would amplify more noise. Or to turn the volume down, it would still sound better to send a strong signal out of Mixxx and attenuate it further down the signal chain.
http://mixxx.org/manual/latest/chapters/djing_with_mixxx.html#djing-gain-staging On 04/06/2016 05:02 PM, Ferran Pujol Camins wrote: > But why is it better? > > 2016-04-06 23:59 GMT+02:00 Be <b...@gmx.com <mailto:b...@gmx.com>>: > > The gain in Mixxx controls the signal that is sent to the sound > card. The OS mixer controls the sound card. > > On 04/06/2016 04:57 PM, Ferran Pujol Camins wrote: > > What's the difference between lowering the volume in mixxx and > in the OS > mixer? > > 2016-04-06 23:43 GMT+02:00 Be <b...@gmx.com > <mailto:b...@gmx.com> <mailto:b...@gmx.com <mailto:b...@gmx.com>>>: > > > I've been working on the wiki and reviewing controller > mappings lately. > I did a little editing to the language of the DJ Hardware Guide > (http://mixxx.org/wiki/doku.php/hardware_compatibility ), > split the > custom caps section to its own page, and revived the old > headphones > section on its own page. > > In reviewing mappings, it has become apparent that there > should be > guidelines on how to handle main & headphone gain knobs on > controllers. > I added a section to the Contributing Mappings page > > > (http://mixxx.org/wiki/doku.php/contributing_mappings#main_headphone_gain_knobs > ) with some guidelines and started a new page > (http://mixxx.org/wiki/doku.php/operating_system_mixer ) with > information about adjusting sound card levels. It would be > great if > others could contribute details and screenshots to the new > Operating > System Mixer page. > > Two cases that I'd like to ask about is when a controller > has a sound > card without any gain controls or doesn't have a sound card > but does > have main & headphone gain controls. In these cases, should > the controls > be mapped to the software gains in Mixxx or not? If they > should be > mapped, then I think the controller's wiki page should > advise users not > to use them in most cases and link to the OS Mixer page. > > I also split the Contributing Mappings page into smaller > sections and > put a bit more context in the introduction. I added a > little section on > documenting how microphone inputs work too. > > > > ------------------------------------------------------------------------------ > _______________________________________________ > Get Mixxx, the #1 Free MP3 DJ Mixing software Today > http://mixxx.org > > > Mixxx-devel mailing list > Mixxx-devel@lists.sourceforge.net > <mailto:Mixxx-devel@lists.sourceforge.net> > <mailto:Mixxx-devel@lists.sourceforge.net > <mailto:Mixxx-devel@lists.sourceforge.net>> > https://lists.sourceforge.net/lists/listinfo/mixxx-devel > > > ------------------------------------------------------------------------------ _______________________________________________ Get Mixxx, the #1 Free MP3 DJ Mixing software Today http://mixxx.org Mixxx-devel mailing list Mixxx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mixxx-devel
