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-   -   Mixer/Neptune Input Bug Found (6.5.2) (https://www.propellerheads.se/forum/showthread.php?t=171164)

oddacorn 2012-11-18 01:18

Mixer/Neptune Input Bug Found (6.5.2)
 
I found a bug in Reason today. I was trying to use a mixer as a switch to control what audio gets sent to a Neptune (I'm doing some experiments with audio to MIDI conversion and am trying to sort out what the heck Neptune's Pitch CV out is doing, because it's not just sending normal MIDI note values - not sure why, as that would seem to make obvious sense). Anyway, I've found that the audio Neptune receives doesn't respect the mixer settings, no matter the type of mixer device. If you mute a channel, Neptune still responds to the signal as if it weren't muted. To test things, I stuck a Spider Audio Splitter after the mixer's master output and routed one version of the signal to the Neptune and the other to a mixer channel. Muting the input shuts off the audio going to the mixer channel, but not to Neptune. Similarly, changes to the volume levels on the mixer have no effect on what Neptune is hearing.

I posted a song file that demonstrates this issue at https://dl.dropbox.com/u/1881605/Nep...t%20Bug.reason. I hope you'll take a look into this.

Thanks!

RXTX 2012-11-18 09:09

Interesting find. I can also confirm that it happens in 6.5.1.

For now one workaround would be to use Thor as a muting mechanism (Audio In1 100% -> Audio Out1 scaled 100% by Button1). It seems multiplying the incoming audio by zero is the only surefire way to stop Neptune from tracking it.

By the way, Neptune's pitch CV isn't a note#, but a frequency. For example, you could connect it to OSC Pitch of a Subtractor.

MattiasHG 2012-11-18 16:19

We should clear up the difference between a mute and a mute here. :)

Muting in a mixer does just that, mutes the audio so you can't hear it. However, muting in the sequencer has a different way of working. Here we're muting the actual "data", audio/MIDI. Try muting Thor in the sequencer and you'll see that Neptune stops responding.

If you trying doing the same thing you did with Neptune with ANY device (MClass Compressor etc. etc.) you'll see that they all receive signal. You just can't hear it. ;)

In other words: this is by design.

RXTX 2012-11-18 18:25

Quote:

Originally Posted by MattiasHG (Post 1180394)
Muting in a mixer does just that, mutes the audio so you can't hear it.

I guess the question is, what exactly does a 6:2 output when its channels are muted? When the output is connected to a Neptune, it doesn't register an input, yet somehow tracks it. How is that possible?

Instrument => 6:2 (muted) => Neptune
Here, Neptune's input LEDs are off, but tracking is on.

Instrument => 6:2 (muted) => Thor (multiply by 0) => Neptune
Here, Neptune's input LEDs are off, and tracking is off.

LudvigC 2012-11-19 14:13

Quote:

Originally Posted by RXTX (Post 1180437)
I guess the question is, what exactly does a 6:2 output when its channels are muted? When the output is connected to a Neptune, it doesn't register an input, yet somehow tracks it. How is that possible?

Instrument => 6:2 (muted) => Neptune
Here, Neptune's input LEDs are off, but tracking is on.

Instrument => 6:2 (muted) => Thor (multiply by 0) => Neptune
Here, Neptune's input LEDs are off, and tracking is off.

This is a weird behavior, and I have reported it as a bug to be investigated.

thanks / LudvigC


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