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

I too am having these issues. Latest versions of Logic and OSX.
Apogee symphony hardware.

This is my 3rd "me too" for the week. I recorded (with major trepidation) over the weekend, and experienced this. I avoided hearing loss because Logic gave the "disk too slow" error, and remembering this thread, I quickly pulled the cans off my head.

I didn't hear the blast, but you could see the white noise @ the end of the audio file. I rebooted, and continued recording (at volumes as low as I could and still hear) without incident. I'm thankful for the error as a warning.

This s**t has me freaked out, and afraid to record. I don't know if it's the software or the OS (and don't care), it's unacceptable.

L(9.0.2)/10.5.8

tg

Message was edited by: grayter1

hmm,


So far I've been spared this (serious knock on wood) - it does seem difficult to pin down judging by people's varied specs. One thought - since this seems to be preceded by a disk-too-slow-error, it may have something to do with the formatting of the disks - journaling on/off, partitions etc.

Maybe, since everything else has come up short, everyone who is having these problems should compare notes on how their system (and maybe session) drives are formatted. Mine are MacOS Extended (Journaled) with just one partition on the sessions drive, the system runs off one of two partitions.

I'm having a problem of similar nature. I'm using Logic 8, and I'll be recording with a Profire 2626, and while it hasn't happened mid-tracking yet, it will happen during playback. The waveform will appear perfectly normal but as soon as it starts playing the newly recorded track, I get a blast of this same noise. If I reboot Logic, I get the "Invalid Header Data" message asking if I want to repair it. After that everything is fine (until it happens again on another new track).

Again, the waveform shows no signs of anything other the audio that was recorded, but that is definitely NOT what I hear. I'm going to start laying down drums for my bands demo, and I'm suddenly really nervous that I'm going to run into this problem right in the middle of recording a take and fry everyone's ear drums.

Has apple even commented on this issue? Because if not, that seems kind of ridiculous to me. As with every one of the frustrated users here, any feedback is appreciated. Thanks all.

I think you'll find M-Audio us the culprit, I got rid of mine for the same reason, and never heard it again.

ps If the OP has any luck with suing Apple for his hearing loss, tell them to expect a class action suit for my limp remixes, I just can't get them fat enough, LOL

I posted this elsewhere but got no response and thought it was appropriate to post here. I don't know if it's the same problem because this was during an offline bounce, but essentially the outcome is the same: LOUD burst of digital noise. I have a screenshot to prove it where you can see the waveform (I no longer have the audio file)...

http://www.flickr.com/photos/76366061@N00/4080438540/

I've had other strange things happen on offline bounces with 9 which I've never seen before (or imagined possible) - like the whole bounce just dropping to silence half way through.

Fantastic! I might forward this to the Logic Feedback people. Might serve as crucial evidence!

steve shadforth1 wrote:
I think you'll find M-Audio us the culprit, I got rid of mine for the same reason, and never heard it again.

Its not an M-Audio Interface problem. Its been reported by users of varying audio interfaces.

malcolm payne wrote:

So far I've been spared this (serious knock on wood) - it does seem difficult to pin down judging by people's varied specs. One thought - since this seems to be preceded by a disk-too-slow-error, it may have something to do with the formatting of the disks - journaling on/off, partitions etc.

Maybe, since everything else has come up short, everyone who is having these problems should compare notes on how their system (and maybe session) drives are formatted. Mine are MacOS Extended (Journaled) with just one partition on the sessions drive, the system runs off one of two partitions.

My audio drive is formatted Mac OS Extended non-journaled, which is the recommended formatting for your audio drive. But this has always been the case in all my audio drives over the years. That aspect has never changed (since OSX that is). Other users experiencing this... what are your formatting specs?

But Logic 8 was the first version of Logic to have this happen, as far as I can recall. Its the first version that I experienced it, and having been a Logic user since version 4, and a moderator on another Logic forum, it wasn't until Logic 8 that I even started reading about it.

But it seems even more prevalent in Logic 9, that's for sure.

http://www.logicprohelp.com/viewtopic.php?t=49993

Above is a link to a thread on this topic that started recently on LPH. I've linked that thread this thread.

I think the only way to find out if there's a common denominator here is for someone to compile the data on everyone's system. My suggestion would be for everyone -- whether you've experienced this problem or not -- to post back here with the following information +in exactly the following format+ (so that it's easy for someone to read and compile the data from it). Here's my suggested questions and format. Feel free to chime in if you think there should be additional questions.

*Have you experienced blasts of white noise while using Logic to record or play back audio?*
• Yes or No

*Under what conditions has the noise occured?*
a) recording only
b) playback only
c) both

*After recording audio, has the waveform overview ever looked normal but playback resulted in white noise?*
• Yes or No

*After recording audio, has the waveform overview ever appeared like a thick solid white bar that filled the entire waveform display (peak-to-peak waveform level)?*
• Yes or No

Computer -- +complete specs+ of your Mac, including:
• type (Mac Pro, G5 PPC, etc.)
• # of processors and speed
• amount of RAM

OS
• version #

Logic
• Version # on which you experience this problem
(and don't just say "Logic Pro". Indicate the exact rev, i.e., "8.0.2" or "9.0.0")

Frequency
• how many times have you experienced this problem? (answering "never" is OK too)

*Audio Interface*
• Make/model
• connection type (PCI-card, FW, etc.)
• Indicate "built-in audio" if you don't have a separate interface

*Hard Drives* -- list each audio drive which you've used in the course of production and from which audio recording or playback has resulted in a white noise blast. +Leave this part blank if you don't experience the white noise problem.+
• Make/model, capacity
• Type: internal or external
• Interface (FW400, FW800, eSATA, SATA, etc.)
• Is this your system drive? Yes/No
• Journaling: On/Off
• if using a FW or eSATA drive, is the drive daisy-chained to any other devices? If so, describe the chain...

*Add'l Info and Observations*
(be brief!)

Great idea... I'll start -

Have you experienced blasts of white noise while using Logic to record or play back audio?
• Yes

Under what conditions has the noise occured?
a) recording only

After recording audio, has the waveform overview ever looked normal but playback resulted in white noise?
• No

After recording audio, has the waveform overview ever appeared like a thick solid white bar that filled the entire waveform display (peak-to-peak waveform level)?
• Yes

Computer -- complete specs of your Mac, including:
• iMac 24"
• 2.66 GHz Core 2 Duo
• 4 GB

OS
•10.5.8

Logic
• 9.0.2

Frequency
• Once

Audio Interface
• M-Audio Fastrack Pro
• USB


Hard Drives -- list each audio drive which you've used in the course of production and from which audio recording or playback has resulted in a white noise blast. Leave this part blank if you don't experience the white noise problem.
• OWC (698.6 GB)
• Type: external
• Interface FW800
• Is this your system drive? No
• Journaling: On (Journaled HFS+)
• Direct connect to FW800 port (not daisy chained)

Have you experienced blasts of white noise while using Logic to record or play back audio?
• No

Computer
• PPC G5 Quad
• 4x 2.5G
• 8G RAM

OS
• 10.5.7

Logic
• 9.0.0
• 8.0.2

Frequency
• never

Audio Interface
• RME FF800
• connection via FW400 cable to 3rd party FW PCI card

Hard Drives
• Maxtor 6B250S0 (partitioned, audio drive portion = 200 GB)
• Type: internal
• SATA
• Is this your system drive? NO
• Journaling: OFF

Add'l Info and Observations -- never had the problem with Logic 8 or 9, but did experience full p-p white noise being recorded (and clearly visible) when recording audio in another app, Screenflow.

iSchwartz wrote:

*Have you experienced blasts of white noise while using Logic to record or play back audio?*

Yes

*Under what conditions has the noise occured?*

c) both

*After recording audio, has the waveform overview ever looked normal but playback resulted in white noise?*

Yes

*After recording audio, has the waveform overview ever appeared like a thick solid white bar that filled the entire waveform display (peak-to-peak waveform level)?*

No

Computer

MacPro 'Harpertown'
3.0 GHz 8 core
16 GB RAM
10.5.8 (but tried 10.6.2 too - multiple boot drives)

Logic

All versions - 9.0.1 and 02

Frequency
*how many times have you experienced this problem?*

4

*Audio Interface*

Apogee AD/DA 16X
PCIe -> FW Apogee X-firewire cards

*Hard Drives*

Internal WD Velociraptor 300GB 60% free space

• Is this your system drive?

No

• Journaling:

Off

*Add'l Info and Observations*

Only ever experienced random pops and clicks in 8.0.2 never 'white noise.' For me, this seems related to a core audio glitch with 9.0.2

Thanks for your efforts, iS 😎

Have you experienced blasts of white noise while using Logic to record or play back audio?
• Yes

Under what conditions has the noise occured?
a) recording only

After recording audio, has the waveform overview ever looked normal but playback resulted in white noise?
• No

After recording audio, has the waveform overview ever appeared like a thick solid white bar that filled the entire waveform display (peak-to-peak waveform level)?
• Yes

Computer -- complete specs of your Mac, including:

Two 2.26GHz Quad-Core Intel Xeon
14GB Memory

OS
•10.5.8

Logic
• 9.0.2 and 9.0.(1?)

Frequency
About 10 times. 4 out of 5 recording sessions.

Audio Interface
• Prismsound Orpheus
• Firewire

Hard Drives -- list each audio drive which you've used in the course of production and from which audio recording or playback has resulted in a white noise blast. Leave this part blank if you don't experience the white noise problem.

tried both journaling on and off, no luck. tried both saving to the system disk and to the second hd i normally use, no luck.
Disk Description :Hitachi HDE721064SLA360 Media Total Capacity :596,2 GB SATA2
Disk Description :SAMSUNG HD103UJ Media Total Capacity :931,5 GB SATA2
format type mac osx extended

Add'l Info and Observations

Seems to happen only when recording long sessions, after about 20 to 30min into the recording session. System doesnt crash, just a big boost of whitenoise which is visible in the waveform.

I had my first encounter with that white noise blast two days ago after two months of working on Logic 9. Couldn't reroduce it afterwards but it sure was loud and bad being in the middle of a big Mix with the speakers cranked fully up.

Sampleconstruct, it would be great if you could post back with your answers to the questionnaire I posted above.

iSchwartz wrote:
Sampleconstruct, it would be great if you could post back with your answers to the questionnaire I posted above.

Thanks for putting this together iS. It gives one a clearer idea of what Apple "Support" would theoretically look like, if it existed....


I have yet to experience the problem.

MacPro 2.66 Xeon, 12 gigs ram, MOTU 2408 MkIII PCIe audio card,

OS 10.5.8, Logic 9.02, 4 internal SATA drives, Audio Drive: WD 500GB (300 free).