#1728

i attempted to search through the thread but my search-fu is weak. whats the best way for me to get you useful data before I delete it?

thnx

#1729

Could be https://github.com/monome/norns-image/issues/43 ?

Do the same thing you did before when you listed the files in /var/log only now do tail -n1000 /var/log/kern.log. That should give you the last 1000 lines of that file.
You can paste it on a paste site like https://bpaste.net

#1730

couldnt figure out bpast, kept getting size limit errors. heres what I got in a text file. thanks for all the help everyone.kern.rtf (93.1 KB) kern.pdf (90.9 KB)

#1731

Has anyone had an issue performing a fresh install?

I can’t get past about 15% on Etcher before it fails. I’m also getting multiple push notifications saying “Eject “boot” before disconnecting or turning it off” as if Norns is spontaneously turning off or losing connection to the computer - this occasionally prevents Etcher from finding the Compute Module before flashing.

***update: Seems the USB cable was the culprit. Tried a new one, flashed successfully on the first try & norns is running smooth. Leaving this here in case others fail to troubleshoot like I did :upside_down_face:

2 Likes
#1732

This has probably been asked before but I don’t recall. Apologies if so. I was wondering if it’s possible to route the tape outputs to norns inputs? Thus use the tape player as an input instrument?

2 Likes
#1733

at present, TAPE can be routed to softcut input, but not to supercollider input.

this is the current routing chart.

(there have also been requests for a softcut->supercollider route, which would alllow lots of feedback.)

it’s not hard to add routes, though it is a little tedious/finicky to add all the relevant glue. @Dewb contributed the latest additions in this PR.

adding routes does have a small impact on CPU usage of mixer client. viz., at present there is no mechanism for conditionally disabling the processing of a route when its level is zeroed.

given that eventually, every route will be requested, it might make sense to simply implement (yet another) fully modular framework within the crone mixer client. but i’m not in a hurry to do this.

#1735

not sure if this should be here or the MLR post, but its more of a general System question I suppose…

I’ve been having trouble being able to get live sound into Norns for recording purposes, either for Cranes, MLR, or other, without getting really bad distortion. I’m currently trying to get it to work with MLR and i feel like i’ve done most permutations I know of. I’m sending the stereo outs from my wmd performance mixer into Norns. Whenever i record something that sounds decent level out of the mixer, it is really distorted on playback. I’ve tried decreasing the input, both in system audio, and decrease rec level on MLR. but those seem to only result in quiter distorted sounds. I dont understand how softuct and engine affect things, but when I decrease the softcut header the overall levels out of norns are quieter.

anyway, I think I’ve read about issues matching levels elsewhere, but any tips anyone had would be appreciated…thnx

1 Like
#1736

Does this happen with the “monitor” route as well?

Is it a sort of ring-modulated sound? Like extreme aliasing : samplerate mismatch?

I just had this kind of distortion today, for the first time, out of the blue after power down and power up. took several restarts, magic wands, etc and then just went away again. It seemed to be at the ALSA / driver / kernel level as the artifact persisted with the norns stack halted and just pass through in alsamixer. Will be trying to reproduce with kernel logs under less trying circumstances.

1 Like
#1737

Is the WMD performance mixer module attenuated so that it’s not eurorack level? It might be too hot coming straight out of a euro module and you’d want something to bring you down to line level.

#1738

Same here with distortion,

1 Like
#1739

Can either of you provide an audio sample? I wonder if it’s this same heisenbug I observed.

#1740

will try to get some audio tonight hopefully. haven’t tried yet with monitor. but it did seem to randomly happen after a powerdown powerup cycle, where i didnt have that problem prior.

#1741

As soon as I’ll be able to reproduce. Reset button solves the problem…so it’s like a kind of crash?

#1742

That’s a good point…I’ll have to look at the manual. I assumed it was since it was a stereo out pair heading outta the mixer…but will check :+1:t2:

#1743

If you mean the white button on the bottom - please don’t use this unless you literally cannot shut down the norns normally via the system menu. It doesn’t do anything special except immediately cut the power to the processor, which can potentially cause file system corruption.

I noticed this weird glitching out on inputs yesterday, for the first time in 2 years of heavy use on this unit. Again, i don’t think it’s related to the user-space norns code. Will definitely be trying hard to triage

2 Likes
#1744

So, i booted up 'ol Nornsey tonight in hopes of providing an audio sample, but lo and behold, it’s back to normal again…all i did was put it to sleep last night. haven’t changed any settings on the WMD mixer or on the system audio side of things within norns itself. now, altering the input levels on norns is all thats needed to get a nice signal.

probably not superhelpful in diagnosing the problem, but in case people run into it, as @zebra pointed out, it seems like power down and bootup may bring it back.

#1745

Had the same problem as @zebra described a few times.

Often a high pitched sound would proceed on power up. Then all audio fed into the inputs would be distorted. Usually a power cycle would solve the problem. Also tried the audio reset but usually didn’t work.

1 Like
#1746

yes! I’ve had this exact problem as well. I actually posted about it a while back: Norns: help

seems to be a recurring issue. not sure if it’s easily diagnosable though, given how transient it is.

#1747

I’ve seen this only once on a unit I have been working with. will try to establish a good log check procedure if someone else experiences it.

wondering if it is a soundcard initialization issue…

#1748

def seems like soundcard init to me. will continue discussion on dev channels

@sonoCircuit do you mean that sometimes “audio reset” does sometimes make the input noise go away? (and this is the same sort of ring-mod / bad aliasing artifact?) if that’s the case it doesn’t match any of my theories or experience - “audio reset” is a soft reset of the norns application stack, but the artifact i’m seeing seems to be introduced further down, and only disappears on a reboot of the kernel.

@gogurt sorry i didn’t mean to ignore your post, honestly couldn’t really get a clear read on your issue from it.