DAC Strange noise USB

Posted by: Blakey on 09 May 2010

I just tried My new DAC with a HD wave file and at the end of the song there was at strange noise like very sharp hum. Anyone heard about that before? Is there something I should know?

THanks!

Vince
Posted on: 09 May 2010 by Aleg
quote:
Originally posted by Blakey:
I just tried My new DAC with a HD wave file and at the end of the song there was at strange noise like very sharp hum. Anyone heard about that before? Is there something I should know?

THanks!

Vince


WAV files that have tags in them cause noice when the last of them has been played.
The only solution at the moment is to remove all tags from the WAV file.

If the WAV-file was created by converting it from another encoding e.g. FLAC, some/all ? converter leave the tags in place. With e.g. dBPoweramp you can specificaly tell it to remove tags at conversion.

-
aleg
Posted on: 09 May 2010 by John R.
My DAC does the very same - may be Naim should fix that problem with an update.
Posted on: 09 May 2010 by mico1964
Look here.

The italian distributor told me that a firmware update will be available soon.
Posted on: 10 May 2010 by pcstockton
On three different sticks I am getting a digitized "buzz" similar to a CD skipping/glitching. This is with Hires only. It happens periodically throughout almost every track. Not at the end.

Not a big deal but enough to make e stop using the USB input. I am surprised no one else is encountering this.

The problem happened with files converted in Foobar, dbPoweramp as well as 24/96 download directly from the artist (NIN).

There are no "tags" on my WAVs.

Anyone else?
Patrick
Posted on: 10 May 2010 by Aleg
quote:
Originally posted by pcstockton:
On three different sticks I am getting a digitized "buzz" similar to a CD skipping/glitching. This is with Hires only. It happens periodically throughout almost every track. Not at the end.

Not a big deal but enough to make e stop using the USB input. I am surprised no one else is encountering this.

The problem happened with files converted in Foobar, dbPoweramp as well as 24/96 download directly from the artist (NIN).

There are no "tags" on my WAVs.

Anyone else?
Patrick


No I haven't and I've already tried the USB with over a dozen high-res albums.

I only tried them on my memorette stick, but there they work without hitch, glitch or buzz (except for the ending of a tagged WAV.

Maybe a stick issue?

-
aleg
Posted on: 10 May 2010 by John R.
I experience this in the middle of a song every once in a while and at the end of a song every once in a while...

Any official infos from Naim about this?
Posted on: 10 May 2010 by pcstockton
quote:
Originally posted by Aleg:

Maybe a stick issue?


With three different sticks from three different mfrs? Strange. I will buy one today of a brand said to work here in the forum and see if that alleviates the problem.

thx.
p
Posted on: 10 May 2010 by Blakey
Aleg, Do you absolutely need DBpoweramp to remove the tags?

Thanks!

Vince
Posted on: 10 May 2010 by Aleg
quote:
Originally posted by Blakey:
Aleg, Do you absolutely need DBpoweramp to remove the tags?

Thanks!

Vince


Vince

That's the only one I know of that has the setting to do so. But on the good side, it is free.

You use the DSP add-in "ID Tag processing" / Tab "Deletions" / button "All Tags"

-
aleg
Posted on: 14 May 2010 by pcstockton
OK I am getting the same glitch on 6 different USB sticks. It sounds similar to old cell phones breaking up. A quick digitized "skipping" that sounds like something from the Matrix.

Could it me my unit only? Or is it the USB implementation of the DAC in general.

The WAVs used were taken straight from an EAC rip to WAV, no FLAC compression ever. Also I used some 24-96 downloaded WAV files from the NIN site.

It NEVER happens at the end or between tracks. Only during playback and in random places.

Any thoughts?
Patrick
Posted on: 15 May 2010 by Blakey
Patrick,

I did not get any bad experience during playback. Only at the end. But then again, I only have downloaded one track (176Khz-24) as I am not willing to spend more money on expensive HD music if this thing ain't fixed or until I get a music server.

I hope the folks will find the bug and fix it with a patch..

By the way, Aleg, when you say that DB poweramp is free, you mean for the first 21 days? As the way I see it, you have to pay for it if you want to use it after 3 weeks. Is there something I should know?

Cheers!

Vince.
Posted on: 15 May 2010 by Aleg
quote:
Originally posted by Blakey:
Patrick,

I did not get any bad experience during playback. Only at the end. But then again, I only have downloaded one track (176Khz-24) as I am not willing to spend more money on expensive HD music if this thing ain't fixed or until I get a music server.

I hope the folks will find the bug and fix it with a patch..

By the way, Aleg, when you say that DB poweramp is free, you mean for the first 21 days? As the way I see it, you have to pay for it if you want to use it after 3 weeks. Is there something I should know?

Cheers!

Vince.


Vince

dBPoweramp is not completely free, the Reference version has to be paid for, but the trial version after 21 days remains usable with a limited set of features. Unfortunately I just saw that the ID Tag Editing and DSP processing isn't contained in the free features. Sorry confusing you about that.

Look here for an overview of the different dBpoweramp Music Converter Versions

BTW I don't know if there is an issue to be resolved, I never experienced any problems using USB playback, I used Redbook and all HiRes versions up to 24/192 from my Memorette USB Stick.

It is only the tags in WAV that give problems with my DAC, after finishing the last track.

-
aleg
Posted on: 15 May 2010 by rich46
who would every want a collection of usb s anyway. buy a nas and be done with it.

look at the quality at the usb port on the dac will it stand upto constantly pluggingin your collection usbs
Posted on: 15 May 2010 by Blakey
Rich,
You're Probably right..
Posted on: 15 May 2010 by ferenc
quote:
Originally posted by rich46:
who would every want a collection of usb s anyway. buy a nas and be done with it.

look at the quality at the usb port on the dac will it stand upto constantly pluggingin your collection usbs


If you use the USB stick as I do and those others whom likes it, you do not need a collection of them, only a very few or even just one. Its role is very different, it is not a mass storage device, it is only for temporary storage and for those who do not want to mess with IT (Information technology) and computers but want to listen files sometimes.
Posted on: 15 May 2010 by rich46
weve been using over here too, i know what they are
Posted on: 15 May 2010 by ferenc
Your post suggested otherwise.
Posted on: 17 May 2010 by Tim Lloyd
quote:
Originally posted by pcstockton:
OK I am getting the same glitch on 6 different USB sticks. It sounds similar to old cell phones breaking up. A quick digitized "skipping" that sounds like something from the Matrix.

Could it me my unit only? Or is it the USB implementation of the DAC in general.

The WAVs used were taken straight from an EAC rip to WAV, no FLAC compression ever. Also I used some 24-96 downloaded WAV files from the NIN site.

It NEVER happens at the end or between tracks. Only during playback and in random places.

Any thoughts?
Patrick


Hi Patrick,

Not your unit only as I had the exact same occurrence the first two times I tried playing WAV files via USB Sticks on the nDAC. I too tried multiple USB sticks, with the same results. I had ripped from AVS Audio Converter and decided to uninstall/reinstall the app. It hasn't happened again since (with identical settings via the app). I don't know if it makes sense, but that did the trick for me.

Regards,
Tim
Posted on: 17 May 2010 by pcstockton
Why cant Andy come into this thread and solve this one for us.

I find it odd that a USB sticks "works", meaning it plays songs, but does so with extreme erroring.

-patrick
Posted on: 17 May 2010 by Tim Lloyd
It is very odd and I'm sorry your my solution isn't universal.

I agree that it had nothing to do with the beginning or end of any given track(s). Couple of thing I did notice which I found peculiar: There was a certain cadence to the skipping errors. They never seemed to occur too close together (no closer than perahps 15 second intervals) and never too far apart (perhaps 45 seconds at the other extreme). I also noticed a variance in the severity. Some sounded like a blast of noise, others much like breaking connection (cell phone noise), and subtler still was some which just sounded that the timing of the music was every slightly interrupted.

-Tim
Posted on: 17 May 2010 by Andy S
quote:
Originally posted by pcstockton:
Why cant Andy come into this thread and solve this one for us.

I find it odd that a USB sticks "works", meaning it plays songs, but does so with extreme erroring.

-patrick
Does it always happen at the same place or just randomly?

I'm not saying this is the answer, but I had a set of USBs on an old PC that wouldn't write the data to the stick correctly. It would say the data was written, but every time, the results were different. If you're on a PC, you can use teracopy (google it) to do a CRC check on the source and destination files.

Took me about 12 months to figure that one out!
Posted on: 17 May 2010 by pcstockton
No not always in the same place or I would assume there was a bad conversion.
Posted on: 17 May 2010 by pcstockton
quote:
Originally posted by Tim Lloyd:
It is very odd and I'm sorry your my solution isn't universal.

I agree that it had nothing to do with the beginning or end of any given track(s). Couple of thing I did notice which I found peculiar: There was a certain cadence to the skipping errors. They never seemed to occur too close together (no closer than perahps 15 second intervals) and never too far apart (perhaps 45 seconds at the other extreme). I also noticed a variance in the severity. Some sounded like a blast of noise, others much like breaking connection (cell phone noise), and subtler still was some which just sounded that the timing of the music was every slightly interrupted.

-Tim

Well it is universally affecting us in the same way. This is exactly what I am experiencing.

This has happened with:

1)proper EAC rip to FLAC, then converted to WAV in Foobar.

2) the same as 1) but converted in dbPOweramp.

3) EAC rips directly to WAV without any compression.

4) 24-96 download from Artist's website.

Seems to happen more often with hires.
Posted on: 17 May 2010 by Andy S
quote:
Originally posted by pcstockton:
No not always in the same place or I would assume there was a bad conversion.
Strange... WAV files are just raw data. No reason for them to be munged in any way....
Posted on: 17 May 2010 by pcstockton
Just to clarify, this is VERY obvious. Everyone can hear it. It scares my dog.

Were not talking about subtle SQ changes here. It makes the usb input unusable.