Difference between revisions of "Networked Audiomixer"

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== How ==
 
== How ==
  
Dreamer suggested this circuit ; <s>https://www.cgs.synth.net/modules/cgs33_matrix_mixer_euro.html</s> [https://web.archive.org/web/20180211035130/https://www.cgs.synth.net/modules/cgs33_matrix_mixer_euro.html *archive*]
+
Dreamer suggested this circuit ; <s>https://www.cgs.synth.net/modules/cgs33_matrix_mixer_euro.html</s> [https://web.archive.org/web/20170525065939/http://www.cgs.synth.net/modules/cgs33_matrix_mixer_euro.html *archive*]
  
 
This shows a mono 4 to 1 summing mixer, which would be adequate. As i have 12 digipots in home, not 16, i'll adjust it to 3 to 1.
 
This shows a mono 4 to 1 summing mixer, which would be adequate. As i have 12 digipots in home, not 16, i'll adjust it to 3 to 1.

Latest revision as of 14:44, 12 May 2020

Networked Audiomixer
Networked-Mixer-Testpcb1.png
Participants Buzz
Skills Electronics
Status Planning
Niche Electronics
Purpose Infra
Tool No
Location
Cost
Tool category

Networked Audiomixer

Networked-Mixer-Testpcb1.png {{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost::{{{Cost}}} | }}

What

We've had experience with hardware like this through the Nexia_PM, but thats a very expensive device.

This project aims to make a simple 4x in 1x out (or maybe 2x out) stereo mixer that is controllable over network -only-.

How

Dreamer suggested this circuit ; https://www.cgs.synth.net/modules/cgs33_matrix_mixer_euro.html *archive*

This shows a mono 4 to 1 summing mixer, which would be adequate. As i have 12 digipots in home, not 16, i'll adjust it to 3 to 1.

My idea is to end up with 2x the input (buffer) circuit, and 4x the output (mixing) circuit, so i end up with a 3x2 matrix mixer.

After this version works, i want to remix it to a cheaper version, using FM62429 as digipots perhaps, and have the dual voltage regulator on the pcb?

Components

  • 2x Input boards 'row board'
  • 4x Output boards 'column board'
  • Power Supply
  • Input and output connectors
  • SBC part to operate the digipots, and receive the second stereo output

Stuff to get

Input boards

This gets 3x mono inputs.

Resistors

  • 3x 100k
  • 3x 1k

Capacitors

  • 2x 10uF 25V
  • 2x 100nF

Opamps

  • 3x TL071 , or 1x TL074

Huh

  • 2x Ferrite beads

Output boards

This gets 3x mono outputs.

Resistors

  • 6x 100k
  • 1x 220R

Capacitors

  • 2x 47pF
  • 2x 100nF

Opamps

  • 2x TL071 , or 1x TL072 (or as i need 4x these output boards, 1x TL074 and share half to second output board)


Others =

  • connectors , ???
  • some powersupply? (this circuit needs -15, 0 and +15V) , maybe this meanwell
  • some kinda case?
  • some SBC with line-in and network (and storage?) :)
 
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