On Tue, Jan 30, 2007 at 06:18:38AM +0000, Tim wrote: > There is no such thing as analog attenuation on these chips. > Only an analog gain stage from 0db to +18, followed by a digital > attenuation stage from 0db down to infinity (mute). > Both of these functions are accessed through the same register, > as a continous range from 0 to 164. The first 127 steps > 'activate' the digital attenuator, with 127 being 0db, while the > last 37 steps 'activate' the analog gain. > In other words, from 0-127 ONLY the digital attenuation stage is > activated. From 128 to 164, ONLY the analog gain stage is activated. > It was intended to be one control. That makes sense (thanks for the clarification). I think it's important to clearly mark the 0dB point, and also to make 0dB the default setting. > Anyways, I say we add some type of 'decorations' to envy24control. > Some type of markings. Two end-to-end 'braces' along the side spanning the > length of sliders, one labeled "digital att." meaning that the range from > 0-127 is digital attenuation, and the other labeled "analog gain" meaning > the range 127-164 is analog gain. It would be a great visual reminder of > this underlying technical detail we have discussed here, so everyone > should understand it. Good idea. > And of course all values in db's as well as integers. dB would be nice. John ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
