On Wed, Aug 11, 2010 at 12:26:19PM -0700, Niels Mayer wrote: > On Tue, Aug 10, 2010 at 11:24 AM, Tim E. Real <[email protected]> wrote: > > > If we put a pre/post fader button on each digital mixer strip, > > then in post mode the user would have to understand that > > what is shown on the meter is affected by the sum of the > > digital mixer slider level and some corresponding analog slider level. > > That is what is ultimately feeding the mixer after the fader, isn't it? > > So this information would be useful to show, wouldn't it? > > It is readily 'available', am I correct?: > > post-fader meter value = pre-fader meter dB value + slider dB value > > While it is true that "mudita24's" meters are perpetually in PFL > (prefade listen) mode -- and this can be confusing to those expecting > an analog mixer, the > AFL (after-fade listen) metering doesn't necessarily make sense in > this mixer. In this case, it doesn't convey new information. In an > analog mixer, for example, it could indicate you've applied too much > gain/eq even if the PFL's were in-range.
Not really, EQ normally being pre-fader. Post-fader meters in a mixer strip are useful only of the signal being metered is actually one that is physically available on some connector, e.g. as a direct out. It would not indicate any overload that occurs pre-fader. If the signal just goes to a mixing bus (as in the case we are discussing) then it's individual level is irrelevant - the level on the mixing bus (all signals summed) may be. But in this case you can't overload the mixing bus, so even that would be useless. > An initial problem in viewing mudita24 as a "mixer" : if the "mute" is > on, it doesn't display that, nor the contribution of the faders to the > resulting stereo mix. However, this app is also, or perhaps mostly, > to be used as an input leveling and metering utility alongside a real > mixer and real metering solution in a DAW. The mixer might be used for > it's traditional purpose as a "zero-latency monitoring" solution for > performers, while relegating the final mix to ardour or qtractor -- > both of which implement their own mixer and metering and work in the > expected ways as a mixer. Yes, it can be used in two different ways. If you don't need the zero latency monitoring (e.g. when the card is connected to a real mixer anyway) you would not use the card's mixer at all, and set fixed analog gains. > > However I realised yesterday that each digital mixer strip is STEREO. > > That means for post-fader metering, we would need to split the current > > single meter into two meters - left and right. > > Not if you use the idea of a single fader and a panpot. Then the meter > would be displaying the post-fader level, and the panpot would be > determining how that is actually mapped to the individual channels. In this case, just individual buttons for L and R instead of the panner would be just fine, and you wouldn't need the mute buttons anynore. Ciao, -- FA There are three of them, and Alleline. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
