I think this is a great step forward ... it will open the door for 3D array audio applications. Typically these applications use 3D speaker arrays which each have individual gains set for each audio 'object'. Consequently depending on an audio object's location in 3D space, will depend on the relative speaker gains for that particular audio object.
Consequently each audio object has its own mixer matrix. There is also a master mixer matrix for calibration - this generally occurs when you have external amplifiers which are different or not calibrated. Matt On Mon, Mar 31, 2003 at 03:03:04PM +0200, Giuliano Pochini wrote: > > On 31-Mar-2003 Jaroslav Kysela wrote: > >> the case 2 is, IMO, the most straightforward way. the info field will > >> have number of rows and columns, in addition to min, max and step > >> values. the change in the alsa core wouldn't be too much. > > > > I think that we simply touch the barrier given by 'struct > > sndrv_ctl_elem_id'. The identification which differentiate identical > > controls is only the 'index' value. If we don't use 'struct > > sndrv_ctl_elem_id' as the identification unit for read/writing of data, > > then we end with trouble with notification and other representation > > (single data unit locking, inactive flag etc). Imagine three or four > > dimensional data types. [...] > > .count is an uint32. Ok, suppose we do not change it. Then the low > level driver has to tell user space apps that the index number > addresses elements in a W*H matrix, so the apps will locate the > cell at (x,y) by a simple index=x+W*y. > > > Bye. > > > > ------------------------------------------------------- > This SF.net email is sponsored by: ValueWeb: > Dedicated Hosting for just $79/mo with 500 GB of bandwidth! > No other company gives more support or power for your dedicated server > http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/ > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel -- http://mffm.darktech.org WSOLA TimeScale Audio Mod : http://mffmtimescale.sourceforge.net/ FFTw C++ : http://mffmfftwrapper.sourceforge.net/ Vector Bass : http://mffmvectorbass.sourceforge.net/ Multimedia Time Code : http://mffmtimecode.sourceforge.net/ ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/ _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
