Audio output glitch while playing

Engine DJ Hardware Media Players
1

Hello there! I´m new to the community. My name is Daniel. 38 years old and living in Austria. I have my Sc6000s around 1 year and I have a problem, which is not reproducable on purpose!

While playing a Song (no download from strange homepages or a youtube ripp) the waveform is moving normal from right to left, but there are a few seconds where there is no audio output, then it is playing normal again. This happens on different songs, not always on the same , not always on the same spot of the song (I have tryed to reproduce when the next song is already playing) I´m 100% loving my denons, but this problem makes me headaches, because it can happen anytime on any track. And I always must have a second source ready to jump in if the problem appears. Does anyone have a same issue? Didn´t find a problem like this in the community. I also can´t say if this problem comes with a firmware update, because there where several since the first apperance of this issue!

Maybe someone can help me, how to fix it.

Thank you in advance! BR

2

Hi Daniel

It sounds like a possible grounding issue with your platter (its capacitive touch). Have you tried turning vinyl mode off to see if it stops? If that resolves it, then you need to take some steps to mitigate the issue by improving the grounding on your setup, this might be a simple case of swapping out your extension lead for a different one.

Alternatively if the waveform is consistent, it could be some issue with the sound output/cabling to the mixer. Have you tried different cables, a different mixer, or simply connecting it to a hifi or sound bar to see if it still does it?

3

Dear Stu-c Thanks for your input. I first thought also of maybe a problem with the platter, but as I wrote, waveform on the display is moving like normal. Connection to the mixer could be a problem, when I use only the digital out. But I use the cinch connection, so if there is a connection problem, it should only effect one side of the sound (left or right). I can´t imagine, that both sides instant have the same problem. I must try to reproduce the problem to give you more input. I have two to three songs, which I wrote down, where the problem accures while having a gig. Maybe it has something to do with different codecs or encoding variants. Till now it wasn´t that bad, but I always have anxity that the problem suddenly appears again while playing. I hoped that this had been fixed with any firmware update, but till now it still existst. Now i`m going to invest more time to locate the problem and find the issue and have a solution for it.

1 Like
4

The other thing to try is to downgrade your firmware to an earlier version, but only after checking all the possible connection scenarios.

5

This makes me think more of a slow storage medium.

Some USB sticks have relatively low read speeds, this is particularly the case for some counterfeits of well-known brands that can be found on Amazon in particular.

You should do speed tests of your storage medium on a computer to ensure that they are sufficient.

Try other storage media on your Denon Unit

1 Like
6

Ahhh yeah great point… my new USB 3.2 drive is lightning fast, and it was cheap.

7

Re slow drives

The prime players still load the song completely to memory no?

Should slow drives be causing audio skips if this is still the case?

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8

Thank you for the input. Problem appears on internal SSD Drive Samsung Evo 870 and also on a cable connected Samsung t7 shield. This problem appears sometimes after 1 to 2 minutes of already playing the song. So for me the song should be already totally loaded. Waveform is totally visible. I`ll update everybody when I can reproduce the issue. Thanks!

1 Like
9

That’s my understanding as well ie files are completely loaded from the storage for playback.

That’s how we are able to do things like switch drives with tracks still playing.

I have seen some audio stutters with beatjump (the jump is not seamless) and I think when searching for a track on the linked deck.

It’s kinda hard to reproduce but happens to me early in a session then subsequently everything works fine.

Maybe it’s a RAM issue or CPU load who knows :man_shrugging:

I think @Reticuli reported similar behaviors

10

I’ve also noticed this since version 4.0

Seems similar to the audio micro-drops that existed when moving a loop quickly and that were fixed in version 3.4 if I’m not mistaken. I don’t see micro-drops on 4.0 anymore when moving loops even quickly, but they seem to have appeared now on fast forward/backward beatjumps. Seems even more pronounced on the second layer when the beatjumps are done on the connected LC6000.

Maybe this would deserve a new bug report.

1 Like
11

Yesterday I tried to reproduce the issue on purpose. Loaded the 3 Songs I 100% sure where the problem appears. Loaded them from the internal ssd. loaded them from the external T7 shield. Loaded them on layer a, loaded them on layer b. Disconnected ssd whilest playing. Made some moving with the connected cinch cables on mixer side and on player side. Played with loops, jumps, used the vinyl mode on and vinyl mode off. The issue didn´t show up… So as you see I tried a few things, but it doesn´t work out…

The main problem for me is, that the sound drop was, when there were no things done on the player. (no loop, no jump, no song loaded etc.) The main problem with this issue I have, it doesn´t appear once on the song, it repeats a few seconds later again and longer, than plays again and a few seconds later again and for my feeling it stops the audio output longer with every issue again. I will try to reproduce it once again this week, but I think the only way to record the issue is to record it with my phone on the next gig when it appears. Hopefully the party isn´t full on fire when this happens, because it is very interupting

12

Daniel, do you think its only happening at your gig? or have you experienced it at home or elsewhere too?

13

The main time i´m playing with the players on long periods is on gigs. At home I only try a few things and this never happens very often. This could be the problem, that it only appears on gigs.

14

EM interference a more likely cause?

15

Mhm. Could EM interference really interrupt the player in this way? Must say, that there is no high voltage or anything else in the surroundings of the whole dj equipment. Nor was a smartphone or anything else laying around of the player

16

It‘s me again. Now I got the change to film the audio glitch. I think it is a problem with the audio unit. Both layer have the audio interruption while playing different tracks on the same time. Problem appeared after 4 hours on time of the player, but not permantly playing. I filmed layer A on the left, where you can see track is normal playing on the waveform movement, while the audio on the chanel shows interruptions. Song in background comes from virtual dj coming through USB, so the running audio in the video is not from the sc6000. After rebooting the player, problem is gone. Do you thing I should contact Denon support checking the audio unit or could this be caused by the usb drive? Link tonthe video: https://1drv.ms/v/s!ArHLd7Dmgtu3g6Vu9XGRd3E7x3nflw

17

Ok so it seems you have a similar problem as @Souldancer (did) as described here:

Note: he also had screen freeze issue on top of audio output.

If I were you I would do one more thing just to narrow down the issue a bit more:

  • connect the player also with analog RCA and see if you have the problem through that output at the same time.
18

Thanks for reply. Player was connected analog with rca to the mixer. layer a to chanel one layer b to chanel four Screen never shows any freezing. Also what I noticed, is a sort of sound crack befor silence. Dont know, if this is any indicator for something.

19

I was suggesting that based on your comment above.

Ok, so you are deffinitely sure it happens on both analog and digital out?

Did it happen only in the club/gig or at home also? You only have one unit, correct?

20

I have set of two sc6000 and two lc6000 connected to virtual dj. On smaller gigs, like the one on the video I mainly use virtual dj with two lc6000 and one backup sc6000 with two layer use for backup situations, if something brake or I just want to use it :smiley: I just connect the sc6000 with analog rca, but next time I will use it with rca and digital connection, to switch and look if digital output works, when analog fails. But for my understanding of a professional mediaplayer, this problem should not accure.