notes about whole house audio talk, pointers to video and presentation deck

[web/gag.com] / electronics / audio / wholehouse / index.mdwn

diff --git a/electronics/audio/wholehouse/index.mdwn b/electronics/audio/wholehouse/index.mdwn
index 035088320a2cbba0feb8b0cf6ed77488d9ed2488..5b30105690a969ad82537b5c83e71763a4dc90c7 100644 (file)
--- 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...
 
 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
 
 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.
 
 circuit board is 2.75 x 1.25 inches and less than an inch thick fully 
 populated.
 

+<a href="usbclassd-v0.1.jpg"> <img src="usbclassd-v0.1-thumb.jpg"></a>
+

 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.  
 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.
 
 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!