Mnyb wrote: > Yes I think there is some kind of dsp hardware chip in Boom it also does > the xover , radio is simpler would be able run that in fw . > > They could have included dirt cheap good old analog tone controls on > radio ? that would have made most sense in that kind of device .
The clever Logitech DSP all seems to happen through alsa plugin(s), I think. I could be wrong. Ideally we would be given another, dirt cheap, EQ plugin to add into the chain. Could it be that simple ? A couple of months ago I formed the conclusion that the hardware codec/amplifier/thingummy could be induced to do some filtering. Just a matter of figuring good DSP filter values to load up, and into which chip registers to load them. Looks like it could be done from the command line (amixer) as the registers appeared to have been exposed to view (De-Emphasis Filters). It's a while since I looked, but I don't think memory is playing tricks on me. Existing software seemed to be leaving them untouched. Of course, it could ruin all the good work done by Logitech's DSP ! My goal would be to add a simple bass unboost button to quell boomy baritone announcers. But it's not going to happen for a while unless someone else does it. There'd be some intricacies around switching to and from headphones, etc., because the chip's input & output is mapped differently from normal speakers. So that's the programme... but no start date specified. :) ------------------------------------------------------------------------ mrw's Profile: http://forums.slimdevices.com/member.php?userid=38299 View this thread: http://forums.slimdevices.com/showthread.php?t=95659 _______________________________________________ Radio mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/radio
