Comments on: Audio Matrix Switch

By: justDIY

justDIY — Sat, 26 Nov 2011 22:52:27 +0000

This was a project that was never built, more of a mental exercise. I don’t know if it would have actually worked.

1. Control was going to be provided by a separate daughter board and microcontroller, or the parallel port of a PC. The interface is similar to SPI, using simple serial shift registers to interface with the switch chips.

2. Jacks never came up, I provided simple pin-header type connectors and planned to use simple shielded mic cable to connect the board to either 3.5mm or RCA style jacks.

3. The switch chips are analog, one design aspect I never investigated was how well the switches would handle an AC voltage running off a single supply.

Hope this info helps you out, thanks for visiting!
justDIY

By: mrbirk

mrbirk — Tue, 22 Nov 2011 21:11:17 +0000

This is some small scaled kind of what I’m planning. But, cause I’m not that expierenced with digital or chip based circuits, so I do have some questions:

1. How do you controll your matrix switch? Do you use some kind of computer based software?

2. What kind of jacks do you use for I/O, controlling and power supplie?

3. Are the audio I/O analog or digital? If they are digital what DA converter do you use?

Thanks for the Information, I’m so glad I finally found some usefull ideas!

By: matias

matias — Mon, 01 Sep 2008 00:19:39 +0000

Interesante projecto

By: Marbles_00

Marbles_00 — Wed, 08 Aug 2007 19:31:24 +0000

This looks like just the ticket for my whole house distribution for switching in multiple input sources. This way I can have input ports in different rooms and be able to switch any one of them in. Thanks for the idea.