key lock pops and clicks

Hi there,
i get clicks and pops when key lock is active. HiQ produces more clicks than eco mode. if i deactivate key lock completely in currently playing decks there are no clicks at all even at 0.5 ms latency. with key lock active i get clicks at latency

 

computer specs? soundcard?

 

see signature.
vista 32 bit ultimate. core 2 duo t7700 // soundcard stanton scs.1m
i have already tweaked my system for best audio streaming perfomance (disable acpi, onboard soundcard, disable powermizer for nvidia cards, etc)
i have absolutely no clicks when key lock is turned off

 

Raise your latency, 0.5 ms is incredibly low

 

Yes. How have you made that on a pc computer? I'm having problems on a macbook pro with 2.4 ghz and 4 gb ram

 

there's a mistake in my first post

why should a mac provide lower latencys than a pc in general?
just a matter of audio and computer hardware, system specs and configuration.
i even get clicks and pops at 20ms latency ....

you shouldn't merely ask too much silly questions but rather try to reproduce my problem!

load a track without baseline/drums (a piano track is best) in deck a. mute deck B (turn down the volume slider). start deck A and then press with the mouse into the waveline of deck B or simply cue-play in short intervalls.. experiment with different keylock settings (turn off, HiQ, eco) ...
post your results

 

I raised this issue during beta testing. I was advised to use HiQ, and Scrtach mode, and raise my latency till it disappeared. Can't say I was too happy with the response. I set my Audio8 to 8.5 ms, keylock on, HiQ and Scratch. I beatmix and key mix so latency is not too much of an issue for me. I have also run the dpc latency checker and that states that my system is able to run at lower latencies. The only advice I can give you is to configure your PC as per the Traktor optimization FAQ (although you probably have done this anyway) and to disable any services and devices that you not use (presuming you are using windoze).

Hope this helps....

Syndrome

 

already done all your tips, syndrome.
raising the latency is unacceptable! and every value above 3ms is bullshit.
it's a problem of traktor/NI !

 

Yeah, I know it's a TSP problem.

Check out:

http://www.native-instruments.com/forum/showthread.php?t=90158&highlight=poll

add to it so NI becomes aware that it's a wider spread problem. Report it as a bug as well.

I really hope NI realizes this is an issue and hope they fix it.

 

I'll be honest, 4/5 ms is the limit of acceptability. I agree with you: the key-lock is interfering with the latency. Perhaps the answer could go in raising the cpu consumption.
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One thing i'm finding rather amusing and so to say - stuppid - is that you can run traktor on 1ms basis if you not use key-lock and traktor makes you go to 4/5 ms to even play track with key-lock and NO SCRATCHING (unless you turn key-lock on the deck you want to scratch, otherwise its impossible with so many popping and clicking)

HOw does key-lock works? Does its function justifies the amazing increase in latency?

 

Without keylock engaged, Traktor has to resample the track continuously. This results in changing pitch, the chipmunk effect etc.
With keylock engaged, Traktor uses (I think) Phase vocoding to stretch the audio without affecting the pitch.
The Phase vocoder method is much more processor intensive than resampling, so stresses your system more.

More here:
http://en.wikipedia.org/wiki/Audio_timescale-pitch_modification

 

That makes absolute sense. What i can't understand is how so few cpu-processing is used in the process. So, could they increase the buffer (is it physically possible to our PC/mac?), allowing scratch-addicted people to do that? Sacrifying some cpu. Perhaps a system like ableton's could do sthe trick - I though that analysing and adding to collection were in fact doing this.

what makes me mad is cueing: i love cueing the old way i can't even do that! all i get is pops and clipping and stuff. I don't know if it is acceptable as it is now. This thing only happen in TSP...

 

Sorry mate, I completely re-wrote my answer after initially posting it. Not sure what the solution for you is to be honest.

1) You could turn the keylock off (undesirable for me - I beatmix, use vinyl, but don't scratch)
2) You could raise your latency (not working for everyone, and if you scratch, not desirable - although I personally don't notice any difference at 5.5ms to normal vinyl - but like I said, I'm don't really scratch)
3) Hope that the HiQ and keylock code can be refined/have bugs that can be fixed
4) Get a faster computer? (but see number 3)

I guess we will see when it comes to the final release.

 

Well, lets see:

1) I can use key-lock if i use cds. But as I send cue oldskool styla and freakin clicks, I really don't know.

2) No way men, more than 5 ms? the problem is in the software not the computer.

3) That's plausible

4) bought this macbook pro 2 weeks ago. For me it is sofware problem, so that's out of quesiton. This clicking and other stuff like that seem to have grown exponentially on TSP.

(For the hundreeth time) I have a Macbook Pro 2,4 ghz with 4 Gb ram... don't tell me it ain't enough. For me the solution could be eatin' a bit more CPU. But I'm no Dev and they don't seem to respond...

For me the new algorithm is very good (in terms of sound) but as an astonishing flaw: clicks like wood that as been in a very hot day in the sun and then is thrown to a freezer.