Zipper Noise on High EQ

Old Forum djay Pro for iPad
1

Has anyone else noticed how easy it is to get zipper noise when playing with the HIGH EQ in DJAY PRO? I’m able to reproduce on DJAY PRO for OSX and iOS by twisting the HIGH EQ fast using a trackpad or touchscreen.

It’s not like these machines are underpowered, Traktor and Serato don’t have these problems on OSX, DJ Player and Cross DJ don’t have these problems on iOS.

Write up on Zipper Noise if you’re not familiar… http://www.sweetwater.com/insync/zipp…

And an audio example, at 15 seconds in it’s quite obvious… http://starpause.com/bug/zipper-noise…

2

I’ve been going back and forth with Alex, another reproduction (the previous example was on iPad, this is on OSX):

http://starpause.com/bug/zipper-noise…

3

Systems I’ve been able to reproduce this issue on

(1)
iPad Air 2
iOS 9.3.5
DJAY PRO 1.0.4

(2)
MacBook Pro (Retina, 15-inch, Late 2013)
Processor 2.6 GHz Intel Core i7
Memory 8 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB
OSX El Capitan Version 10.11.5
DJAY PRO 1.3.1

(3)
MacBook Pro (15-inch, Mid 2009)
Processor 3.06 GHz Intel Core 2 Duo
Memory 8 GB 1067 DDR3
Graphics NVIDIA GeForce 960M GT 512MB
OSX Yosemite Version 10.10.5
DJAY PRO 1.3.1

(4)
iPad 3
iOS 9.3.5
DJAY PRO 1.0.1

I didn’t update DJAY on the older iPad to give you another data point, that this bug has been present since 1.0.1.

4

Three releases and this isn’t fixed?! “PRO” DJ app with broken eq…

1.0.4 - Sep 08, 2016
1.0.3 - Jun 03, 2016
1.0.2 - May 03, 2016

5

I’m still able to reproduce this in version 1.0.11… why don’t you hire some engineers who understand audio programming instead of jumping on the AI bandwagon

6

Hi starpause,

thank you for pointing this out I was able to reproduce the issue. I told a developer to look into this and we will keep you posted.

Please stay tuned.

Cheers,
Lukas E.

7

Thank you for your details and the reproduction video, i attached them all to the bug issue i created.  
I will keep you posted about the results of the issue.

Cheers,Lukas E.

8