Pan Law for R16

Discuss the Zoom HD and R series. Please don't "post and run". Participate in the discussion. Thanks.
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hoodoo voodoo
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Pan Law for R16

Post by hoodoo voodoo » Thu May 10, 2018 6:40 am

Does anyone know if a pan law or rule applies to the R16....or if it can be set to apply ?
In other words as the pan is swung from -100 left to 100 right is there a summing of gains as it is swung across the centre. Typically in hardware mixers there is a 3 dB dip as a pan pot swings across centre

Wiki probably puts it better than I have: "Pan law, or pan rule, is a recording and mixing principle that states that any signal of equal amplitude and phase that is played in both channels of a stereo system will increase in loudness up to 6.02 dBSPL, provided there is perfect response in the loudspeaker system and perfect acoustics in the room"

More elaboration here: https://en.wikipedia.org/wiki/Pan_law

So, back to my question...is this employed by default (or settable) in the R16 ?
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Re: Pan Law for R16

Post by Wulfraed » Thu May 10, 2018 8:39 am

You would likely have to beg Zoom to respond to that question.

Or set up an SPL meter in a sound room and pan a white (or pink?) noise source across the field.

Since that "law" is described as an artifact of the listening environment, and the lower price Zoom products probably aren't considered for such perfect acoustics -- nor for live panning -- it is probably felt that one could just adjust panning to a static position and then tweak the fader to rebalance the apparent sound level. Different from say, a video sound engineer taking a mono foley effect (the infamous coconut galloping horse) and having to pan that in realtime to match video of a horse moving across the field of view; having to handle both pan and fader to keep a constant heard level would be near impossible.
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Re: Pan Law for R16

Post by Jim_Fogle » Thu May 10, 2018 7:40 pm

I'm not sure I agree 100 per cent with the Wiki article as I think it's incomplete. The Cakewalk by BandLab DAW I'm learning allows for the selection of one of six stereo panning laws. Each selection mimics the stereo panning law used in a specific console. I've copied the panning laws below:
the Stereo Panning Law field, choose one of these options:

(Default) 0 dB center, sin/cos taper, constant power. This choice causes a 3 dB boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.

-3dB center, sin/cos taper, constant power. This choice causes no boost in a signal that’s panned hard left or right, and 3dB dip in output level in either channel when the signal is center panned.

0dB center, square-root taper, constant power. This choice causes a 3 dB boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.

-3dB center, square root taper, constant power. This choice causes no boost in a signal that’s panned hard left or right, and 3dB dip in output level in either channel when the signal is center panned.

-6dB center, linear taper. This choice causes no boost in a signal that’s panned hard left or right, and 6dB dip in output level in either channel when the signal is center panned.

0 dB center, balance control. This choice causes no boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.
My Zoom MRS-8 manual does not state what stereo panning law it uses and I don't remember running across panning law statements in any of the other Zoom manuals I looked at.
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