Clicks and Pops - Update

pedro5 · Post by **pedro5** » Sun Apr 10, 2016 11:58 pm

Perhaps some simple tests may be useful…unplug everything and record a few minutes of silence with the sequencer.
Repeat with the audio input source connected,but in an "off" state.
Then another one with the input source "on",but don't play anything.
Compare the results.

Another suggestion….
Try the usb audio route, via the Kronos,into a computer using Audacity software.
(Audacity is an audio recorder which is free for all platforms and can produce excellent results,including testing purposes etc).
Do several recordings…normal,plus the other ones suggested.

Incidentally,you may find Audacity useful for other tasks as well…..noise editing for example.
(You will obviously need to export/import existing audio files to do so etc).

Best Wishes.

Wagnergrad96 · Post by **Wagnergrad96** » Mon Apr 11, 2016 12:56 pm

" . . . . . . . As soon as i shutdown the playstation 4, all the static noise is gone.

So in your case i would check if there is something connected to your electronic outlets or something in the area that can introduce those static noises. . . . . . . . "

I will definitely look into that when I get home today. I added more RAM and re-installed the original settings with no change

Wagnergrad96 · Post by **Wagnergrad96** » Mon Apr 11, 2016 12:58 pm

". . . . . .Another suggestion….
Try the usb audio route, via the Kronos,into a computer using Audacity software. . . . . . . "

Pedro, I don't have a computer, only my KRONOS - but maybe I can use my ELEVEN RACK via USB input. I can try that.

voip · Post by **voip** » Mon Apr 11, 2016 1:09 pm

The clicks on the sound samples are reminiscent of a tape-based answerphone I had a while back. After all the messages had been listened to and the tape allowed to carry on playing the blank portion beyond the messages, random clicks were audible and were almost exactly the same as the click in the samples, and were due, I think, to electrical noise from the tape drive motor. The only motors in the Kronos are in the fan, and the hard disk drive in the original Kronos. The Kronos X and K2 have solid state drives, so no motor there. You could try temporarily unplugging the fan from the motherboard, although I would be surprised if that made any difference, since fan motors are electronically commutated, unlike the tape machine, which had old fashioned brush-commutated motors. However, it's a simple test and at least that possible cause could be eliminated. If unplugging the fan does make a difference, check that the fan leads are not routed close to any audio circuitry or cables, and separate if necessary.

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pedro5 · Post by **pedro5** » Mon Apr 11, 2016 5:06 pm

Thanks for letting me know you don't have a computer.
I assumed that you used one for posting on here.....forgot about other means etc.....sorry.

pedro5 · Post by **pedro5** » Mon Apr 11, 2016 10:05 pm

Not sure if the Eleven Rack can output audio via usb in the conventional way……can't find any reference to it in the manual,other than a link to Pro Tools etc.
However,the spdif output can be set up to match the Kronos,so I suggest you try this,if possible, as a workaround.(if cables are available…?).

The purpose would be so that the Sample Rate and Bit Rate can be matched to suit.(48kHz and 24bit).

You will need to make appropriate settings on both units.

Obviously it won't provide answers to the current problem,but could eliminate any possible mismatched settings, which can be a common source of noise.

Best Wishes.

dfahrner · Post by **dfahrner** » Mon Apr 11, 2016 11:09 pm

voip wrote:...the only motors in the Kronos are in the fan, and the hard disk drive in the original Kronos. The Kronos X and K2 have solid state drives, so no motor there....

The original KRONOS had / has solid state drives without motors, too, like the later versions...

df

Wagnergrad96 · Post by **Wagnergrad96** » Wed Apr 13, 2016 1:09 pm

Guys, I'm about ready to give up. The clicks are getting more frequent. It takes me about 8 total hours to edit a 3 minute audio track.

I will try the S/P dif idea but need to go buy the cable this weekend. Am I correct in saying that using S/P dif would record digitally - therefore avoiding the ADC? So, if it recorded with no clicks then the ADC may be the problem

Also, is it possible for the operating system to get a virus? I do use a thumb drive a lot to transfer midi files and back stuff up. Just a thought.

very frustrated.

SanderXpander · Post by **SanderXpander** » Wed Apr 13, 2016 1:18 pm

If you can reproduce the problem at the repair location with a different recording source and different cables it seems to me something IS wrong with the Kronos.

Otherwise it could also be something like your fridge turning on.

Ksynth · Post by **Ksynth** » Wed Apr 13, 2016 1:21 pm

SanderXpander wrote:If you can reproduce the problem at the repair location with a different recording source and different cables it seems to me something IS wrong with the Kronos.

Otherwise it could also be something like your fridge turning on.

Or just try another location other than your home.

I'd try the SP/DIF first.

Wagnergrad96 · Post by **Wagnergrad96** » Wed Apr 13, 2016 3:30 pm

. . . . Or just try another location other than your home.. . . . . "

I tried that a few nights ago. I brought the kronos downstairs with my 12 string and had the same clicks and pops.

It's possible that the guy who "fixed" it - only for the clicks and pops for continue - didn't fix it at all.

He said he replaced the ADC. So we thought the problem must lie elsewhere. Maybe he did a shitty job and the problem is the ADC afterall. Who knows.

voip · Post by **voip** » Wed Apr 13, 2016 7:04 pm

As a temporary measure, until the real cause is found and fixed, the audio files could be put through through software used to clean up digitised vinyl recordings. It could save quite a bit of time in the long run.

edit - doh, just read you don't have a computer. Maybe this could be the excuse you need to get one. They're not hugely expensive these days.

http://www.dvdyourmemories.com/blog/how ... l-records/

http://manual.audacityteam.org/o/man/click_removal.html

http://www.wavecor.co.uk/

www.audio-technica.com/cms/resource_lib ... clicks.pdf
.

pedro5 · Post by **pedro5** » Wed Apr 13, 2016 9:46 pm

Don't give up....just yet.

Questions...

Is your ssd nearly full ?
Have you tried a re-format ?

I'm not really suggesting it's related...just some thoughts.

Good luck with the spdif route....do remember to make the correct settings.

A virus wouldn't be a problem.....the Kronos is not a computer.
You could re-install the o/s if you wish to satisfy any doubts.
(This will need to be done following a re-format anyway).

Perhaps some corrupted files may be transferred,but I doubt they could affect recording etc.

Best Wishes.

aron · Post by **aron** » Thu Apr 14, 2016 1:27 am

At this point, it has to be the Kronos. I don't think it is the ADC because it works when sampling, but not with SSD. Everything in my mind points to the Kronos having a problem recording to SSD.

voip · Post by **voip** » Thu Apr 14, 2016 1:51 pm

[quote="pedro5"]Don't give up....just yet.

A virus wouldn't be a problem.....the Kronos is not a computer.

Best Wishes.[/quote]

The Kronos relies on a computer motherboard, amongst other things and runs a highly customised version of Linux, so the potential for vulnerabilities is there, just a lot less likely than a common or garden PC.

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