Last updated: January 3, 2013
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Building a PC Controlled Speaker Switcher
Last updated: January 3, 2013
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From the Gadget Junkie website.
[googlead]”Having several pairs of speakers around the house for TTS announcements (using HomeSeer) and background music from my Home automation PC seemed like a nice idea.
I started out with a Y splitter and 2 sets of amplified PC sepeakers but I needed a way to selectively turn the speakers on and off.
While browsing the HomeSeer forums I came across a link to a site describing how to build a CCTV camera switcher. This circuit uses a PC parallel port to operate switching transistors. I figured with a bit of tweaking I could use this principal to switch the output from a sound card to several pairs of amplified speakers”…
Read the rest here Gadget Junkie
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