X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=blobdiff_plain;f=electronics%2Faudio%2Fwholehouse%2Findex.mdwn;h=5b30105690a969ad82537b5c83e71763a4dc90c7;hp=035088320a2cbba0feb8b0cf6ed77488d9ed2488;hb=9eba2eafbe4db22256041e9b0fc10572d65fa160;hpb=47855d91d4d3cf05a8926a45a8b2b17f70f48d51 diff --git a/electronics/audio/wholehouse/index.mdwn b/electronics/audio/wholehouse/index.mdwn index 0350883..5b30105 100644 --- a/electronics/audio/wholehouse/index.mdwn +++ b/electronics/audio/wholehouse/index.mdwn @@ -10,7 +10,7 @@ to be an audiophile-level system. The system proposed by our builder was hideously proprietary, and apparently violated the GPL. Just couldn't do it... -## System Design +## System Design ## Our builder had a sub-contractor install ceiling-mounted speakers in each of 9 zones in our house. Each zone has a local impedance-balancing volume @@ -29,6 +29,8 @@ much power. So we built the system using the 30 watt per channel parts. The circuit board is 2.75 x 1.25 inches and less than an inch thick fully populated. + + A set of these boards, one per "zone", each attach to the speaker wires, a DC power supply, and a USB hub that is attached to a Debian system in the mech room. @@ -38,4 +40,17 @@ system runs software that controls audio stream sources, maps them to the various zones, and volume controls the zones .. all controllable from a web browser or Android application. -More details will be posted soon! +## Artifacts ## + +The prototype hardware design current gEDA files are available from +[git.gag.com](http://git.gag.com) in the project +[hw/usbclassd](http://git.gag.com/?p=hw/usbclassd;a=summary). + +Bdale gave a [talk](http://youtu.be/gMTKyW6MXME) at Linux Conf Australia +in January 2016, [slides here](http://gag.com/bdale/talks/2016/lca), which +led to [an LWN article](http://lwn.net/Articles/674191/) by Jon Corbet. + +## Future Plans ## + +The initial design is working very well. We're pondering the possibility of +making enough boards to sell, watch this space for more details!