Difference between revisions of "Networked Audiomixer"

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(Stuff to get)
 
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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/20180211035130/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.
+
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.
  
Idea will end up with 2x the input (buffer) circuit, and 4x the output (mixing) circuit
+
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.
 +
 
 +
== 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 ==
 
== Stuff to get ==
  
* 16 digital potentiometers  , possible model X9C104
+
=== Input boards ===
* 8 'buffer' opamps  , possible NE5532
+
This gets 3x mono inputs.
* 8 output opamps  , ??
+
 
* ferrite beads , ???
+
'''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 , ???
 
* connectors , ???
 
* some powersupply? (this circuit needs -15, 0 and +15V) , maybe [https://www.eijlander.nl/rt65b-geschakelde-voeding-64w-triple-output-5-12-12v-8-0-3-5-1-0a-a-475570-4419.html this meanwell]
 
* some powersupply? (this circuit needs -15, 0 and +15V) , maybe [https://www.eijlander.nl/rt65b-geschakelde-voeding-64w-triple-output-5-12-12v-8-0-3-5-1-0a-a-475570-4419.html this meanwell]
 
* passives : 36x 100k ohm , 8x 1k ohm , 4x 220 ohm, 12x 100nF , 8x 47pF, 4x 10uF
 
  
 
* some kinda case?
 
* some kinda case?
 
* some SBC with line-in and network (and storage?) :)
 
* some SBC with line-in and network (and storage?) :)

Latest revision as of 08:02, 5 November 2019

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

Networked Audiomixer

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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.

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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