Re: Open source mixer AU proposal
Re: Open source mixer AU proposal
- Subject: Re: Open source mixer AU proposal
- From: Bill Stewart <email@hidden>
- Date: Fri, 8 Aug 2003 15:41:54 -0700
On Friday, August 8, 2003, at 02:39 PM, James McCartney wrote:
Any mixer topology can be mapped onto a matrix. I once wrote code that
would take a description of an arbitrary mixer topology and its
parameters and convert it into the parameters for a matrix mixer.
On Friday, August 8, 2003, at 8:13 AM, Robert Grant wrote:
What I'm looking for is a mixer that is somewhat akin to real-world
mixers. I want:
Stereo/mono inputs
per input:
input gain fader
input balance/pan (balance for stereo, pan for mono)
send levels
pre/post fader switches for the sends (not essential but nice to
have)
Some basic EQ (lo/mid/hi) would also be nice but not essential
multiple stereo effect send busses (say 4)
Effect Return busses if it's technically feasible (see below)
Stereo master out.
This can all be done with 2 matrix mixers:
One takes the track inputs
It has multiple out busses - 1 for the dry out, n for the send busses
out.
Your send bus volumes can be either pre-post track mix fader with some
simple math on the volumes you apply on the crosspoints
You can bus as many tracks as you want to any of the send busses
The second matrix takes your dry input and the send inputs and has one
output
If you don't have any sends you can even do the master volume on the
output of the first mixer, so the second mixer is all unity volumes -
which means we just manipulate pointers
Simple :)
Bill
---
James McCartney
Apple CoreAudio
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