Static sound when using Nodes to mix audio files

B Jones's icon

Hi - I'm pretty beginner so this might be an obvious fix. I am using nodes to mix between different audio files. However when I move from one node to another there's a distinct static sound happening. Is this my driver? Do I need any additional line or ramp to smooth things out?

This is based off of this YouTube tutorial.

Thanks!

Source Audio's icon

yes, you need to smooth volume changes.

for example using 4 in / 1 out matrix~ with 25 ms ramp time

B Jones's icon

Thanks! That worked great. Any tips on how I might be able to record a multichannel file from this matrix? I can't seem to get it to work - have tried a variety of mc. objects.

Source Audio's icon

why mc ?

you use sfrecord~ with as many channels as needed, open recording file and off you go.

but in that patch you use,

matrix~ output is MONO, where would you record multichannel from ?

pre - matrix~ fade ?

maybe like this ?

would give you 4 channel file with each channel´s fade I/O

and audio output to stereo.

I personally dislike mc stuff for this simple few channe stuff.

B Jones's icon

Sorry! I'm def a beginner. So what I'm going for is an 8 channel file that has all the various amplitude panning that I can get from the nodes object.

Before I added the matrix I was able to map each audio file to the sfrecord~ 8 - then record a 8 channel file. Now that the matrix is used to route - I can't seem to figure out how to do this step.

Does this make sense? Again - sorry I'm super beginner!

Source Audio's icon

no problem, I thought that you want only mono output.

take that 4 channel matrix and extend it to 8 shannels.

It could be also done using mc objects,

I simply dislike them.

if you want to try mc stuff, just pass gain list from nodes to one of mc objects that can use it,

link 8 players to mc.pack, mc.sfrecord~ etc etc.

B Jones's icon

I just tried that and for some reason when I output the 4 channel file - only the first channel has info.


Source Audio's icon

why do you connect all players to same 1st matrix inlet ?

open matrix~ help file and look a bit arround there to get and idea

about inputs, outputs and control.

B Jones's icon

ugh.. yea that was a dumb mistake on my part.

Just tried with new gain list - that was where I was going wrong in previous attempts.

All good - thanks a million!

Source Audio's icon

all ok , have fun mixing