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New Powerbook Audio Stutter / Looping / Echo problem

I though people would like to hear the problem that some of the 15" and 17" powerbooks have been having.

I tried recording the sound from iTunes using Audio Hijack, but when the weird audio issue happened and I played back the recording, you couldn't hear it in the recording (i.e. it played normally), so it seems to me that it's related to some basic audio issue (because Audio Hijack couldn't hear it when it was recording iTunes) rather than a specific application.

I was able to record the sound using a cable from my powerbook to another computer (which then recorded the line-in using Audio Hijack).

Here's a short quicktime capture of the sound:

http://s89317810.onlinehome.us/AudioStuttering.mov

Has anyone heard anything about a fix? It doesn't seem to be related to Airport use for me since I don't often use Airport at home.

Powerbook 1.67 15", Mac OS X (10.4.3), 1.5 gig ram

Posted on Nov 21, 2005 8:51 AM

Reply
765 replies

Feb 14, 2006 4:45 PM in response to aspenboy

I've been trying all my provoking tricks for a good hour now, but no loops. Tied the poor thing in knots a few times though. I guess you can only have so many different audio programmes running before the lot will hang!

This is looking good, just hope I havent spoken too soon.

Additionally I have noticed that I cannot get the balance in sound prefs to shift when I rapid toggle the volume keys. Perhaps that was where the fault was all along.

If this is the end of our lively thread, may I add that it has been a pleasure reading everybody's thoughts and rants! Lets hope we meet again under more favourable circumstances.

Cheers

Bryan Harris

Feb 14, 2006 5:29 PM in response to Jonathan Rudenborg

I would think that would be classified under defective hardware. I would insist on a repair.

I have a 17 incher (ooeer!) so am not plagued by this. If I were I wouldnt tolerate it.

From a health and safety point of view, a defective, flickering or visually distracting/disturbing display will lead to eye damage through eye strain. Insist on it being fixed.

If you are an employer, and your empoyees had to use your PowerBook, they could sue you under health and safety regs in the UK for this fault if it lead to eye strain. Flickering can also lead to Photo Sensitive Epilepsy attacks, potentially fatal!

Feb 14, 2006 6:00 PM in response to aspenboy

(I hope I'm not speaking too soon.)

Well guys, it has been several hours and no reports of this problem. Even some of my old tricks to provoke the problem aren't working anymore.

I have been subscribed to this topic for a VERY long time and every day my Inbox would be filled with pleas for help, possible solutions, and calls to action. Thanks to all those who participated and helped spread the word.
I think this may [finally] be the end of our horrific past few months experience.

In other news:
I tried to spread the word at TUAW and a user is lambasting me over the linkage to the powerbookdefect.info website in my comment. "Mac Diva" as he calls himself is contorting our pleas for help into a Scam for MacBook Pros. If you have the time, please set him straight and let him know that this (was) a very real problem.

The drama is here:
http://www.tuaw.com/2006/02/14/10-4-5-available-via-software-update-for-both-ppc -and-intel-bas/2#c1029655

I'd appreciate the support.

~Graham, Signing off (Hopefully.)

Feb 15, 2006 5:07 AM in response to aspenboy

Out of curiosity I opened up the installer package with Pacifist, to have a look.

Quite a few new kernel extensions, some power management (CPU speed controll perhaps?) and a new AppleFileSystemDriver.

I know little about this stuff, but I would like to know what the specific thing is that has cured this problem.

Anyone with knowledge and Pacifist like to have a look at the installer??

Anyway, it still seems fine, so Im away to catch up on some work.

Feb 15, 2006 6:23 AM in response to aspenboy

I'm really glad that this problem is finally solved. I had 2 problems, this echo problem and a display with the lineproblem. My display was fixed last week, so I have a perfect powerbook now 🙂 (finally)
But calling with AppleCare has costed me €66,-!(in 1 month!) Do you guys think I can claim that money back? Because Apple promissed me several times things they couldn't deliver, so that forced me to call them back everytime.

New Powerbook Audio Stutter / Looping / Echo problem

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