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Pan tapers Issue Tools
issueid=1860 01-10-2010 10:45 PM
Mortal
Pan tapers
Add pan tapers to pan law selection

Reaper uses a very odd pan taper. To bring it more in line with other DAWs I'd suggest adding a pan taper selection to the current pan law selection (as a second listbox. maybe the compensated/uncompensated could also be turned into a checkbox, which would halve the length of the pan law list -- and be slightly less confusing for beginners methinks).

The pan tapers would be:
Reaper (which should be the default, as this might otherwise break older projects / workflow for new projects)
Square-root
Sinusoidal

If you are about to complain, that both square-root and sinusoidal tapers are fixed to a -3 dB law, they can easily be extended as so:

P = Pan amount [0:1] (0 = left, 0.5 = center, 1 = right)
L = Pan law (reduction at center in dB, must be unequal 0dB. example -6dB => L = 6)

For square-root (or maybe it should be called exponential):

Ch1 = (1-P)^(L/6)
Ch2 = P^(L/6)

For -3 dB we get the standard square-root taper and for -6 dB a proper linear taper.

The sinusoidal law could be adapted in the same fashion:

Ch1 = sin(0.5*pi*(1-P))^(L/3)
Ch2 = sin(0.5*pi*P)^(L/3)

For -3 dB the result is a regular sin/cos taper, and for -6dB we get a squared sinusoidal taper.

Other tapers would be possible as well, such as piecewise linear which would approximate how actual potentiometers are built.

See also: http://forum.cockos.com/showthread.php?t=49809
Issue Details
Issue Type Closed Issue
Project REAPER
Category Audio recording and playback
Status Implemented
Priority 5 - Medium
Affected Version 3.161
Closed Version (none)
Yes votes 126
No votes 1
Assigned Users (none)
Tags (none)

01-11-2010 12:53 AM
Mortal
 
Just in case it isn't obvious from the FR, the 0dB pan law would remain as is no matter what taper is chosen, as it isn't actually a pan mode but a balance mode.
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01-11-2010 03:45 AM
Mortal
 
Discussion of this FR should occur here:

http://forum.cockos.com/showthread.php?t=49809
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