My ears are ringing from blast of white noise from Logic 9

I turned journaling off, use a internal drive, changed interfaces...it STILL happens.

Apple need to respond to this issue with THEIR software, read this thread and also this one http://www.gearslutz.com/board/showthread.php?t=439130&referrerid=91126

Disgraceful!!!!

I'm moving on

John Alcock wrote:
I've spent many, many hours trying different combinations of OS and Logic versions, even changing interfaces connected from firewire and PCI . Because it can strike at any time, I can't find any repeatable combination which will induce the noise. It's also infrequent; I could run for weeks with no problem, then get hit twice in the same day.

Maybe that's a clue.

Could it be related to system updates, maintenance scripts, or something?

So I've had this problem happen intermittently over the months, but yesterday during a very important location recording session, it was happening CONSTANTLY.

I managed to get through the recording but with many interruptions. My pianist sitting at the other end of the room could hear the blasts of noise in my headphones (I was probably 8 metres away!).

Not only was it totally unprofessional, but it came close to ruining my session (and ears). I should send Apple the bill for this: it's simply not fit for purpose.

I would question if there are laws being broken here... but software is such a grey area. As is Apple IMO these days.

Not happy Apple. SORT IT.

In fact, you know what... I'm actually going to send Apple a bill for wasted time. Seriously folks.

Interesting... after my aformentioned expereince in session a couple of weeks ago, I wrote to Apple/Logic feedback and actually got a response... I'm posting here because I think all users will benefit from seeing this:

*Thanks for your recent feedback though we're sorry to hear you're experiencing a problem. Are you using version 9.1.1? The form says you are using 9.0.2 - perhaps that was an error?*

*I assure you we take this issue quite seriously and have spent the better part of the last year investigating it. It has been essentially impossible to reproduce and the nature of it suggest that it is not specifically a Logic issue. We did however take steps in 9.1.1 however to at least block the audio output in the event that conditions arise that suggest it might occur. In that scenario, there would be a loss of audio altogether rather than an audible burst of noise. It will be disappointing if you have in fact experienced this noise burst while using 9.1.1. In any case, we would be very interested in learning as much as we can about your system as it may help us to understand this issue better.*

*I look forward to your reply.*

Well unfortunately I was using 9.0.2 because I need to keep my Macbook cross-compatible with my G5 (when PPC support stopped). But what I thought was interesting is that A/ they have issued a patch in 9.1.1 which blocks audio under these circumstances B/ an admission that it is a problem, but that is essentially impossible to reproduce C/ that they've spent a lot of time trying to fix it without much success so far! The claim that it might not 'specifically be a Logic issue' is interesting, but I'm sure we all agree that our Apple software running on an Apple OS on Apple hardware, is probably an Apple problem.

I did write back detailing more info but I've not heard anything further so I thought I'd post this now. Nice to have some info, but the big question is what will happen from here...

Thanks for sharing this.

we would be very interested in learning as much as we can about your system as it may help us to understand this issue better.

If you reply, would you please include a link to this thread? If they want information there's plenty of it here, including that Excel spreadsheet I made up a while ago detailing at least a dozen people's systems (if not more).

iSchwartz wrote:

If you reply, would you please include a link to this thread? If they want information there's plenty of it here, including that Excel spreadsheet I made up a while ago detailing at least a dozen people's systems (if not more).

Hi,

this thread is already (well) known to Apple. The information given by the AppleCare guy is based on in house testing results at Apple.

That's at least the information I was getting from some friends over there.

Best,
21th

Thanks 21st.

Strange... there are reports here of this happening with 9.1.1, despite the claim made in the email. (I recall that you posted previously saying that there was some kind of scheme in 9.1.1 to prevent this but I couldn't find any documentation on it at the time).

Rhetorically... why isn't this information made public? Why does it have to be disseminated via a forum member and not by the company itself? Un freekin believable.

In more recent news... I got files from a musician the other day made on 9.1.1... WAVS with bursts of noise visible at the end of the recordings. Good thing I saw them and edited them out before I played them back.

I'm using 9.1.1

It most definitely still happens. Blocks of white noise appended to the end of a newly recorded audio file. Thankfully, like iSchwartz, I could see the "block of doom" before the playhead reached that section of corrupted audio.

Apple.... some communication on this is absolutely required.

The problem may be somewhere in the CoreAudio system, for example, and not in the Logic codebase, or it may be a combination of different issues resulting in the same outcome.

If it happens in 9.1.1, remember that Apple haven't been able to reproduce this yet, so any temporary workaround fixes they've implemented may not catch all cases or be exhaustively tested (you can't exhaustively test when you can't reproduce the problem reliably).

So, anyone that has this problem is best making some comprehensive bug reports to give them as much data as possible.

Never had it myself - must just be lucky... (famous last words!)

I got a blast of white noise once. I was recording a song in 32 bit, then decided to open it in 64 bit. That's when I got nailed. I went back to 32bit and it stopped. Then I opened a brand new project in 64 bit. It was fine.

It must have been because I used 32bit apps or filters that were incompatible with 64bit. I haven't had the issue again.

Many people seem to think it's a software problem. Maybe, but if it is, it's at the OS level, not the app...although app programming might make it more prone to happen.

For all we know could be a chip issue and exist as a bug in the "wiring." It's an issue that's existed across Mac platforms and OS's for years.

I think I remember first getting the blast when I was using Final Cut 3.0, so it's been with us for a looooong time.

That said, I don't ever remember the issue happening with Mac OS ver.9.

ok im officially messed up emotionally over this..........

bump

Just got this for the first time, couldn't believe how loud it was. Thank god I didn't have headphones on.