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DJM-V10 clipping with Serato DJ Pro? USB output too hot?

I've already reached out to Serato support but they haven't gotten back. It's pretty weird. I've tried making sure the V10 Utility had output to 0dB (and there's no options to go lower, only boost?). Running the latest firmware. Running the latest driver utility.

I even went into the Utility settings page on the touch screen to adjust Master output attenuation and that doesn't work.

The only thing that works is to adjust the trim of the deck in Serato down and then everything works.

So strange.

Link to video:
https://www.reddit.com/r/PioneerDJ/comments/ux9g4o/djmv10_clipping_with_serato_dj_pro_usb_output_too/

Adam Wrzeski

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The signal path is:Serato DJ -> internal trim/volume per deck -> Serato DJ master volume -> USB (set to 0db in the DJM V10 Utility -> DJM V10 -> Channel 1 Trim -> Channel 1 Fader -> Master output -> Speakers

After checking that whole signal path the only thing that eliminates the distortion is at the Serato DJ Internal trim/volume setting.

This is control vinyl. So it's not like the volume of the timecode signal going into the Phono jacks on Channel 1 are going to contribute to clipping anything.

Adam Wrzeski 0 voti
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FWIW I'm just setting the master volume to halfway. I tried ctrl+clicking the master volume and it just cranks it to max instead of setting it to unity. Odd. Bug maybe?

Adam Wrzeski 0 voti
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At this point, after all the discussions on Reddit and with my buddies it's pretty much a software/Serato problem.

There's no reason that for a normally mixed song (source file is not clipped), unity gain on that track in Serato, and the default 100% volume level of the Serato master output (if you hover over the master volume with tool-tips on it says control+clicking sets it to the default of 100%) ----- no reason for it to be clipping that hard.

Adam Wrzeski 0 voti
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Update/resolved: I am a moron. 
When the DJM-V10 isn't connected via USB. And you're using software only. Control+clicking the master volume in Serato sets it to 100%.
When the DJM-V10 is connected via USB. And you're using control vinyl. Control+clicking the master volume in Serato sets it to unity gain. 🤦‍♂️

So nothing is "wrong" per say --- but the fact that Serato didn't set the volume to unity when plugging in the DJM-V10 seems like an oversight. 

Adam Wrzeski 0 voti
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All DJ software has wanky gain staging you have to be careful with, but I don't understand why the Serato master volume would have any effect on the individual channel volumes.  By the way, you should have seen immediately the levels were crazy just looking at those channel meters in Serato.

Reticuli 0 voti
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