Software help archive

A read-only archive of old serato.com help threads.

Continuously stuttering of waveform on MAC ( every 5 seconds )

Product
Scratch Live
Version
1.9.2
Hardware
Rane SL1
Computer
Mac
OS
Platform
-
gevola 9:11 AM - 20 January, 2010
Product: scratchlive
Version: 1.9.2
Hardware: scratchlive-sl1
Computer: mac
OS Version: 10.6.2
---

Hello,

I purchased the MAC on December 2009 ( Mac Bok Pro 15" 2.5GHz 320Gb ).
And unfortunately I found that me too I have a problem of stuttering of waveform.
I tried reducing the refresh screen to 30 FPS .. but the problem is still visible ( more less .. but still present ) .

On youtube I found this video
Watchwww.youtube.com
and seems is the same problem I have

I found other threads that describe my same problem
www.serato.com
www.serato.com
If I have understand correctly also Chad S. have the same problem.
So this means that you are able to reproduce?

But seems that there are no solution ...
Is this right?

The same version 1.9.2 works correctly on my PC desktop.

About my system profile I have already uploaded into this thread
www.serato.com
The file is gevola.spx.

Please let us know if you need of more information.

Ciao.
Konix 5:22 PM - 20 January, 2010
This is unfortunately just how it is with Macs and there's nothing can be done about it.
Rane, Support
Chad S. 7:11 PM - 20 January, 2010
This is a known issue and yes it happens on mine. But my specs are a tad low.

If you have a new mac, you might benefit from running the MAC performance update.

It was a known apple issue with pausing reading the info from the HD. Something like that could contribute to stuttering waveforms. Click the link below for more details.
support.apple.com
gevola 10:29 PM - 20 January, 2010
Ok Chad .. I tried to download an install Performance Update 1.0. But this package is not valid for 1.6.1
Seems is already present into the upgrade 1.6.2 ( that is the OS I have )

Just an information .. seems that this problem is not present with Scratch Live 1.8.3
This information is true ?
Rane, Support
Chad S. 10:45 PM - 20 January, 2010
the update was not a part of 10.6.2 and you can't install it on 10.6.2

Rock and a hard place is where apple has left you on that one.

A solution could be to revert back to 10.6.0 and then do the performance update and then go back up to 10.6.2
gevola 3:27 PM - 21 January, 2010
Hi Chad,

unfortunately I don't have a "backup" ( Time Machine ) of OS 1.6.0
This means that I need to reinstall from the OS from CD.
This is not a problem .. I have only Scratchlive and Ableton on this MAC ... but this are my first approach with a MAC ..

My trouble is if doing this operation the license purchased for Ableton Live 8 (purchased to have Ableton Bridge) still works or not .. while something changes ( like the serial number of HD as on windows ) ?

Have you done something similar?
Can I restart the system from CD?

Moreover I found this new update on apple
www.apple.com
what do you think ?

Ciao.
Rane, Support
Chad S. 6:29 PM - 21 January, 2010
It lists the below as benefits of the update you linked. I don't think this would help the situation you are reporting.

This update addresses the following issues for Mac Pro (Early 2009) computers:
- Improves compatibility with virtualization products utilizing VT-d
- Improves storage performance under Windows XP for Boot Camp users
- Improves system reliability during the boot process

I would give apple a call about your concerns with the serial numbers on a fresh install. I'd hate to give you the worng answer.
gevola 7:43 AM - 24 January, 2010
Hi Chad,

restored 1.6.0 ... installed 1.6.1 ... installed the Performance Update 1.0 ...
but nothings changes !!!$$$&&&&&

I will upload the three system profile soon.

Can ask you .. why this problem is related to a disk performance ?
The track view, are taken from the same data that are used then as output ... or are taken by the data prepared when analyze is performed ?
I mean the RVAD or GEOB data stored inside the ID3 TAG.

Anyway I suppose that this data is not loaded when the track is moved to the desk.
But loaded ""step-by step" depending by the position of needle.
Is it right ?

Ciao.
Rane, Support
Chad S. 6:10 PM - 25 January, 2010
A pause or lack of wavefrom means that there is no data streaming or a choppy read of the stream. The HD performance is what drives that stream.

If your car is sputtering, you check the engine first.
gevola 6:32 PM - 25 January, 2010
Sorry Chad,

I don't want to insult anybody.
My question was just to understand if the waveform data is read at star-up or not ..

ciao.
Rane, Support
Chad S. 6:37 PM - 25 January, 2010
No offense taken or intended from my part. Sorry if there was a misunderstanding somewhere.

I was trying to put it into more "everyday" terms as a tool to describe the cause and effect the performance update could have for you.
gevola 8:45 PM - 25 January, 2010
okky Chad ...

are you aware if thsi problem was fixed replacing the internal HD ?
Moreover .. if the problem is related to the HD performance (or not ??), why using an external disk to read the track the problem is still present ?

hmmmmm I prchase a MAC .. because "it is the best" .... :(
Rane, Support
Chad S. 9:27 PM - 25 January, 2010
It was a reading info issue, not really a "faulty" drive. It was a problem with the Apple software and they quickly addressed it.

Have you analyzed all of the files in your library?

Do you see any symbols for bad / corrupt songs in the library?
gevola 8:10 AM - 26 January, 2010
Hi Chad,

this is what I did yesterday.

1) Deleted the ScratchLive folders present into the Music folder, then uploaded into the desks two tracks ( mp3 stored into internal drive ).
When I play ( abs or internal mode ) the waveform stutter.

2) Plug external USB disk, deleted again the ScratchLive folders, uploaded into the desks two tracks ( mp3 stored into external drive ).
When I play ( abs or internal mode ) the waveform stutter.

Just to understand better, as you told in this thread www.serato.com you too have the same problem.
It is right?
Have you fixed in some way?

Ciao.
Rane, Support
Chad S. 5:37 PM - 26 January, 2010
Quote:
This is a known issue and yes it happens on mine. But my specs are a tad low.

Yeah, my specs are slightly below the minimum so I know it's my own fault. Other than that it runs fine and the audio never drops out.
gevola 11:33 PM - 28 January, 2010
Hi Chad ..

I'm still here :)
what do you think about my test ?

Quote:
1) Deleted the ScratchLive folders present into the Music folder, then uploaded into the desks two tracks ( mp3 stored into internal drive ).
When I play ( abs or internal mode ) the waveform stutter.

2) Plug external USB disk, deleted again the ScratchLive folders, uploaded into the desks two tracks ( mp3 stored into external drive ).
When I play ( abs or internal mode ) the waveform stutter.


About your MAC .. okky probably is quite old ..
but you will be aware that other me there other guys that have my same problem like konix, djperry, DJ MTK, dj machetie and I think many others ...

So my question is ..
the Serato teams will try to solve this problem or not?

If the engineers, can't solve the problem, they can try to investigate to find a workaround ?

Ciao.
Rane, Support
Chad S. 11:43 PM - 28 January, 2010
Its a known problem for some mac users. We have looked long and hard at the problem, it doesn't seem to be something within our control though.
bumbo08 4:40 PM - 29 January, 2010
i get this but it's something i've learned to live with.

it doesn't affect playback or any kind of operation of the software.

while it is intensely frustrating to begin with you kinda learn to ignore it as everything still works fine.

Quote:
Its a known problem for some mac users. We have looked long and hard at the problem, it doesn't seem to be something within our control though.


you guys do enough!!
gevola 5:48 PM - 29 January, 2010
Hi bumbo08,

what is not good .. is that seems that the MAC works near to her limits ( and I hope that is not true ).
In fact I just buy Ableton Live 8 in order to integrate the latest feature of 2.0.

My trouble was ... all works correctly .. or ScratchLive with Ableton then doesn't works due to some MAC limits ?
Rane, Support
Chad S. 6:12 PM - 1 February, 2010
The specs on the computer looked fine. Its just a OS problem with the shakey waveforms. Its not due to lack of power in your case.
gevola 9:18 PM - 6 February, 2010
Hi Chad,

what do you think abut what Dylan said ? www.scratchlive.net

Also my MAC contains the MCP79 chipset.
Probably can be my problem related to the same chipset ?
Rane, Support
Chad S. 5:30 PM - 8 February, 2010
Good info for sure. End result is the same.

Quote:
We'll keep looking into it and keep you posted next week, hopefully we can find a workaround or apple provide a solution soon.

Cheers
Dylan.
Rane, Support
Chad S. 5:52 PM - 8 February, 2010
I've been helping another person with this as well. Here is his last response,

Quote:
Ok, I ran a rescan and overview build and then zoomed out once, and it works now! But you are right about the ears, barely look at the screen. Just wanted to make sure that it would not effect my SSL. Thankyou everyone.



Have you done what he just did?
gevola 6:06 PM - 8 February, 2010
Hi Chad,

about rescan and overview build yes ( I tried using just two MP3s )
Quote:

1) Deleted the ScratchLive folders present into the Music folder, then uploaded into the desks two tracks ( mp3 stored into internal drive ).
When I play ( abs or internal mode ) the waveform stutter.
2) Plug external USB disk, deleted again the ScratchLive folders, uploaded into the desks two tracks ( mp3 stored into external drive ).
When I play ( abs or internal mode ) the waveform stutter.

with
Quote:
then zoomed out once
you mean to zoom-out the waveform ?
Rane, Support
Chad S. 6:09 PM - 8 February, 2010
If you use the "+" or the "-" key it will make the waveforms faster or slower aka zoom in or out.
gevola 6:17 PM - 8 February, 2010
Okky .. I will try and I let you known.
gevola 9:01 PM - 1 March, 2010
Hi Chad,

unfortunately the problem with zoom does't solve the problem.

Now I'm waiting for good new about a similary problem described in this thread.
www.serato.com
I hope Serato or Apple can help us.
Ciao.
gevola 9:01 PM - 1 March, 2010
sorry...

unfortunately the problem with zoom doesn't solve the problem.
Rane, Support
Chad S. 9:14 PM - 1 March, 2010
I know I asked, but I didn't see an answer, have you analyzed all of the files in your library?

Which version did you do them in or is it multiple versions as you added music?
gevola 9:38 PM - 1 March, 2010
Quote:
I know I asked, but I didn't see an answer, have you analyzed all of the files in your library?

Yes

Quote:
Which version did you do them in or is it multiple versions as you added music?


Sorry but can you explain me again, I don't understand your request.
BriChi 12:58 AM - 2 March, 2010
I think he means what version of SSL did you analyze the files in or have you been analyzing in multiple versions as newer ones came out like 1.9, 1.9.1, etc....
gevola 5:51 AM - 2 March, 2010
hmmmm multiple versions 1.8.0 to 1.9.2.
I can try to create a new temporary database and rebuild only 10 tracks .... and see what happens.
Thanks BriChi
BriChi 12:34 PM - 2 March, 2010
no problem, let us know how ya make out
Rane, Support
Chad S. 5:30 PM - 2 March, 2010
I would go into the ALL crate.

Highlight one song and press ctrl + A. That will highlight everything.

Drag and drop it onto the Analyze Files tab and it will rebuild them all for you.
BriChi 6:25 PM - 2 March, 2010
Chad, can't you just ctrl+click the analyze button and it will do all?
Rane, Support
Chad S. 7:32 PM - 2 March, 2010
haha, I never knew that but yes, I just did it.

nice one.
BriChi 10:02 PM - 2 March, 2010
:)
gevola 10:08 PM - 2 March, 2010
Hi Chad/Brichi,
I just executed the following steps:

1) deleted the Scratchlive folder ( I have executed a backup before :) )
2) Start SL and insert only 16 tracks
3)
Quote:
just ctrl+click the analyze button
:)
4) loaded into the desk one track ...
5) The problem is still present.

BriChi, do you have the same problem ?
Rane, Support
Chad S. 11:32 PM - 2 March, 2010
I think we might have to accept this as a known issue that it is. Of course we continue to troubleshoot it as you can see in the other thread. Unfortunately it isn't something that can be solved at a rapid pace. As the other thread indicates, it really looks like a MAC problem. But we continue to plugaway at a solution anyways.
BriChi 1:41 AM - 3 March, 2010
yes, I have the issue where when i load a track, the screen freezes for a second, I seem to resolve this temporarily by rescanning id3 tags (takes about 15 minutes tops on 18,000 files) before each gig, I turn the laptop on, open ssl and right away start the quick scan, this seems to cut down a lot for some reason on the screen freezing when loading the track
Jordan Laws 2:02 AM - 3 March, 2010
I wish I would have known this before I coped a new joint and it's acting up. Oh well, blah...
gevola 11:36 PM - 23 March, 2010
Quote:
I think we might have to accept this as a known issue that it is. Of course we continue to troubleshoot it as you can see in the other thread. Unfortunately it isn't something that can be solved at a rapid pace. As the other thread indicates, it really looks like a MAC problem. But we continue to plugaway at a solution anyways.

Ciao Chad,
if I have understood correctly you are tolking with Apple to solve the problem of freeze when load a track ....
Do yoy knwo if in the same MAC ispresent also the problem of stuttering ?
Someone has tried the new OS 10.6.3 ?
Rane, Support
Chad S. 3:39 PM - 24 March, 2010
I don't think that is out yet. It is something we will be looking at when it goes to full release.

I've been following the conversation in the other thread as well.
DJData 6:02 PM - 29 March, 2010
10.6.3 just came out, so if some one has tried it out, and report there findings here that would be great.
gevola 8:38 PM - 29 March, 2010
10.6.3 ... just downloaded .. and installed .....

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!SAME PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!SAME PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!SAME PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!SAME PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I bought a MAC .. spent a lot of money .. for nothing ...

...... I'm tired ....
DJData 8:51 PM - 29 March, 2010
Is It clear that the problem is in the os and not in 1.9.2 , is It also there in the 2.0 beta ?
DeeJay Fingers 8:59 PM - 29 March, 2010
it has to do with the hardware (chip) not the OS...and yes its still there in the beta
DJData 9:10 PM - 29 March, 2010
Ok thanks for clearing that up for me. They might just be able to work the problem out with a software update do, they did that before i think with the 27 inch iMacs. I suspose i will have to send a feedback form on teh problem to apple aswell then, wich i think Serato must have done themselves too, but just to get some more attention to the problem, aldo i have not been troubled by it in a way it is keeping me from mixing but it should be resolved if possible of course, it is a bit annoying for sure.
gevola 9:15 PM - 29 March, 2010
Hmmmmm other tests I have executed now ….

Installed winXP SP3 with BootCAMP …

The delay loading the track seems not present..
About the problem of stuttering .. seems present but not as on OS X ( is quite acceptable ).
The problem is that I got a LOT of USB drop-out ( on winXP ).
So I set the USB buffer to 4 …

All MP3 was stored inside the first partition of MAC, and I have used the same database.

I will execute more test and I let you know.

So were is the problem hardware or driver ????

I’m still tired….
gevola 10:37 PM - 29 March, 2010
okky executed the update of BootCamp on WinXP (3.1).
After the update the date of driver of nVidia card is now January 2010.
Restart of WinXP
Set USB buffer to 1
Mix for about 45 minutes ....

No lag and no stuttering of waveform !!!!!!!!!!!!!!!

I will execute more test in the next days .. but now seems the the problem is related to the driver on MAC....

Hi Chad,
what do you think?
I can do other test ?

Ciao.
DJData 11:03 PM - 29 March, 2010
I wonder who makes those drivers for osx, is it apple or nvidia that make those, since it seems to be a driver problem.
djfrequency 4:52 AM - 30 March, 2010
hopefully soon we can get rid of this.
meyrick 7:13 AM - 30 March, 2010
Quote:
hopefully soon we can get rid of this.


yep lets hope so
Rane, Support
Chad S. 3:55 PM - 30 March, 2010
lotsof encouraging news on this in the other thread too. I think that the developers are going to try and test your findings this week.
gevola 4:05 PM - 30 March, 2010
Hi Chad .. do you mean the Serato developers ?
Rane, Support
Chad S. 4:07 PM - 30 March, 2010
yes.
gevola 4:09 PM - 30 March, 2010
okkyyyyyyy

This is really gooooood news !!!

thanks
DeeJay Fingers 8:28 PM - 30 March, 2010
ok i installed XP SP3 with boot camp - updated to new driver which is dated 3-16-2010 version 6.14.11.9716 or 197.16 (From Website)

still getting the stuttering of waveform :/ ...

i'm glad it worked out for Gevola though :)
DJData 8:39 PM - 30 March, 2010
I hope they sort it out in OS X aswell, i dont have a mac to run Windows on it,patience is what i need i'm sure, they will fix it at some point ;-).
gevola 11:04 PM - 30 March, 2010
Hi DeeJay Fingers

I have executed some more test ..
There are the results:
First of all the nVidia driver on XP is 6.14.11.8861 ( dated 1-05-2010 ).

1) When I play without SL (off line player) the waveform stutter (much then a MAC OS).
2) Plugged SL, and play with turntable (abs mode) the waveform scroll much better that on MAC OS.
Clearly .. before bought a MAC I didn't pay attention to this problem ..
If some glitch ( only on waveform not audio ) was present .. I don't have see it.
So now checking better(on winXP), locking the waveform continuously, I got a stutter .. but really only few and not every 5 seconds as on MAC.
3) I jump to MAC OS X again ...
Start with SL ... apart of the stuttering ( every 5 second) when I loaded the second track ( with ctrl+arrow key) the framework lock-up for 1.5 seconds ...
I don't run a lot of MP3 on windows.. but in 30 minutes I don't get a lag loading tracks.

What I meant is .... ????
I don't known .... :)

I'm not happy to have a WinXP working better ..
I bought a MAC not to run WinXP.
DeeJay Fingers 11:26 PM - 30 March, 2010
Hi Gevola,

yeah i didnt buy a mac to run XP on it either..LOL

so i did a couple of videos one running OSX and the other XP (which i rolled back the driver to 1-05-2010)

using the same song on both - so the results were on XP it doesnt shutter as much as in OSX

Maybe someone on the serato team may use it while dealing with apple on this :)
11:29 PM, 30 Mar 2010
DeeJay Fingers attached a file: Shutter on OSX.mov
Download· Permalink
11:33 PM, 30 Mar 2010
DeeJay Fingers attached a file: Shuttering on XP.mov
Download· Permalink
gevola 5:14 AM - 31 March, 2010
Hi Deejay Finger,

so seems now you are in my same situation ...

Please can you upload your video into a public area (like youtube), so I can check your result?

Hi Chad,
I want to make a video me too.
Unfortunately today I can't do this.
I will do tomorrow.
Is ok for you ?
Rane, Support
Chad S. 4:10 PM - 31 March, 2010
You can if you like. It seems like we understand the problem but it's finding the precise reason and relaying that info to Apple and making them believe it is the OS, i think is the current challenge.
gevola 4:25 PM - 31 March, 2010
But it's Apple that release the nVidia driver on MAC OS.
So if there is a trouble on driver released by Apple .. they will need to check ...
( at least is what I hope they must do ).
DeeJay Fingers 4:51 PM - 31 March, 2010
Gevoia, send me a message with your email ...ill just send you the videos if you like :)
gevola 6:29 PM - 31 March, 2010
Hi Chad ..
Moreover .. if you check this thread www.serato.com
you can find that there are a lot of people that have this issue.
So if we can do something to force Apple to do something .. please let me know .. I thinks that all guys have this problem will open a ticket on Apple.
LJ_WOOLSEY 6:35 PM - 31 March, 2010
been a problem since the uni body macs came out! how long ago was that? so cant see anything being sorted. i got fed up and went and got a pc windows 7. shame because i really like the look of the macbook pros and the osx.

but good luck with it all. and maybe one day it will be fixed and i'l buy a mac.
Rane, Support
Chad S. 6:39 PM - 31 March, 2010
If everyone opened a ticket on APPLE with the same problem, I think a rush of the same complaint could get their attention.
DJData 6:49 PM - 31 March, 2010
good idea chad, maybe we can organice something here to make everybody do it seperatly, or one big one from serato, with all , the mac owners signing a petition or something like that.
gevola 6:54 PM - 31 March, 2010
okky ..
Please can someone help me telling how open a ticket on Apple ?
Then I can publish this procedure in the two main threads.
gevola 6:55 PM - 31 March, 2010
Hi DeeJay Fingers,
I sent you my email address ...
Rane, Support
Chad S. 6:57 PM - 31 March, 2010
grassroots actions get results.
DJData 7:26 PM - 31 March, 2010
www.apple.com , i think this where you send in your feedback to apple
gevola 10:46 PM - 31 March, 2010
Hi Chad / guys,
I have uploaded my videos.

The first report the stuttering of waveform every 10 second
( when the audio track is at these positions : 3:28 / 3:38 / 3:48 / 3:58 / 4.08 )
www.mediafire.com

The second ( on WinXP ) works better.
www.mediafire.com

Please Chad can you confirm me that in any case you will executing some test about this issue ?
.
NOTE: I have start a ticket the Apple … If they will reply me I let you know.
Moreover I created a new thread on Apple (discussions.apple.com)

Ciao.
DeeJay Fingers 11:16 PM - 31 March, 2010
Hi gevoia,

where you put "MAC Book Pro produced in 2009.
Old version works correctly."

not entirely true...i have the Late 2008 Model. you should download this tool and find out exactly what model you have just to play it safe...

www.coconut-flavour.com
Rane, Support
Chad S. 11:21 PM - 31 March, 2010
I don't have the computer that has the problem here. I work for Rane, we are in America. The developers at Serato are in New Zeland. You have mainly been corrosponding with them in the other thread. They write the software and have a much greater insite to the background stuff that is going on.

From what I understand they downloading the 10.6.3 when it came out the other day. I'm fairly sure they will begin testing that when time permits. We are also trying to nail down the 2.0 version and continue work on the 1.2 beta for Video.
gevola 5:24 AM - 1 April, 2010
Quote:
Hi gevoia,

where you put "MAC Book Pro produced in 2009.
Old version works correctly."

not entirely true...i have the Late 2008 Model. you should download this tool and find out exactly what model you have just to play it safe...

www.coconut-flavour.com


I wrote this sentence, just because in this thread
www.serato.com
seems that who found this problem has a MBP produced in the 2009.
I will download coconutIdentityCard and I will report the right data when my MBP was assembled.
boabmatic 8:18 AM - 1 April, 2010
hey Gevola,

Added a reply to your message on the apple forum with my mac details...
jroc453 5:39 PM - 24 May, 2010
Quote:
hey Gevola,

Added a reply to your message on the apple forum with my mac details...

Same here!!!