Thunderbolt audio distortion and slow Pegasus Raid Speeds

Having major problems with my MBP 17" and my thunderbolt set up. (MBP 17" 2.3 i7 quad core, (2) 27" thunderbolt displays, Pegasus R6 12TB Raid, Blackmagic Ultra Studio Pro 3D)
Apple states this clearly on there website that it is possible with this exact set up.
Issues: With all 4 devices plugged in the Raid speed goes from about 515mb/sec write to 166mb/sec write speed. 
            With one thunderbolt display, raid, and blackmagic I get around 460mb/sec.  As soon as the second display is added to the mix the speed drops off considerably. 
After Effects and Davinci Resolve color correction software cannot get sync on the Blackmagic box. Final Cut works ok.
The other really big problem is that when you do any kind of data transfer across the thunderbolt line, I cant get audio to play back for more than a few seconds. I get distortion and static in the line.  I have tried the thunderbolt audio from the monitors and the Blackmagic box.
The most curious thing is that it all works on the 13" MBP.  The write speed goes to 225mb/sec with everything plugged in, however it must be enough, because the audio doesnt distort and I can get sync on my color correction monitor out of the Blackmagic box.
I also tried a brand new 17" MBP 2.5 i7.  I still get the same problem.  It is like there is something wrong with the 17".
I have contacted Pegasus and Blackmagic.  Pegasus said that they now know about it and are working with Apple. 
Does anyone else have this set up and are you experiencing the same problems?  Please feel free to respond with any questions.  I wouldl love to hear from Apple regarding this matter.  Seems like a big problem.
(other items testing)
-Switched video card to not auto switch.  just use high performance.
-Went to Apple, bought a brand new 17" 2.5, stock.  tested it.  same exact results.
-Moved all the items around in the daisy chain to see if one item has to be first.  No luck.
-Laptop monitor open and closed, same result.
-Reinstall OS.
-Brand new motherboard.
-New hard drive
-New RAM
No luck again.

This is not a surprise. Apple's software RAID is slow. The best option for using Apple's software RAID is to use a regular disk for your audio files and keep the backup copy on a RAID. Also, depending on how important those files are, you might also want to keep an off-site backup copy because fires, floods, and thefts do occur.

Similar Messages

  • Why is audio  distorted and pulses after I import from Adobe Organizer to Adobe Premiere Elements 11

    All the videoes I have collected this year from my iphone video, sony  video camera an fuji water video camera work fine in the Adobe organizer but when I import to Adobe Premiere Elements 11 after a couple of clips max four the audio distorts and pulsates. I just purchased the software and have updated all the software. Thank you in advance I am so frustrated I feel I tried everything. 

    1st, Iphone won't easily edit http://forums.adobe.com/thread/881246
    -and http://forums.adobe.com/thread/1011411?tstart=0
    -and a fix http://forums.adobe.com/thread/934466
    2nd, What are you editing, and does your project match your video?
    Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
    What is a CODEC... a Primer http://forums.adobe.com/thread/546811
    What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
    Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
    http://forums.adobe.com/thread/592070?tstart=30
    For PC http://mediainfo.sourceforge.net/en or http://www.headbands.com/gspot/

  • Extreme Audio Distortion and Loudness occurs randomly...

    Extreme Audio Distortion and Loudness occurs randomly...when I open an old FCP project.
    There seems to be no logic behind when it happens.
    And the audio was fine the last time the project was saved...
    Anyone know why this happens, I feel like I'm the only one who might have this issue

    No you are not the only one.
    Do a search in this forum.
    But I haven't it seen reported for the last few months, so maybe this solved with some update.
    If the search does no help you, you need to give us some more information about the specs of the audio/movie files, sequence settings etc. And on the versions of FCP OSX and Qicktime, as well as information about how the audio is coming from the speakers (internal audio, AJA or Blackmagic card, etc)
    Rienk

  • HELP: iDVD plays back audio all distorted and slow

    I just created a movie in iMovieHD. It looks and sounds great in iMovieHD. I then chose the iDVD button to export my movie to iDVD. After it rendered in iDVD and I play it back, the pictures looks beautiful but the audio is all distorted and is playing back at least 5 times too slow compared to the original audio. My audio source in iMovieHD was an AIFF file from iTunes. My iMovie is still photos from iPhoto set to the music from iTunes.

    Hi David:
    Extracting the audio tracks in imovie first will often fix the problem.
    Sue

  • T410 Bluetooth audio distorted and delayed

    Hi everyone, When I connect my laptop to my speakers through bluetooth, the audio gets distorted (the pitch is unusually low) and delayed. I have a ThinkPad Bluetooth 2.1 with enhanced data rate II, and the operating system is Windows 7. I have installed the latest drivers and the speakers work well with bluetooth when connected to other devices. Has anyone got an idea what this could be and how it could be solved? Best,Lambj 

    I am having a similar problem when using my Motrola S305 bluetooth headphones to listen to music files.  The audio is garbled/distorted and I can't seem to adjust by lowering volume (either on the BB or the headphones).  Phone call audio through the headphones is perfect, and the music audio is pretty good through the BB's speaker.  It's odd, but I didn't have this problem on the Tour 9630 (using the same Motorola headphones). 
    Has anybody had similar problems with the Motrola S305 headphones?  I did not see it on RIM's list of "compatible" headphones.  Maybe these issues can be addressed with an OS update?

  • Thunderbolt audio distortion during heavy Thunderbolt hard drive activity on MacBook Pro Retina 15 2012

    I have a 2012 MacBook Pro Retina connected to a Thunderbolt Display, with Thunderbolt hard drives attached to that. Whenever I'm doing a big copy, or a Time Machine backup, any audio being played through the speakers becomes heavily distorted. If I switch to internal speakers, it's fine (but obviously not high-quality). As soon as drive activity quiets down, audio is fine again.
    Anyone else having this problem and/or know of a fix? It's super aggravating to have to change speaker settings every hour when my backup kicks off!
    Thanks!

    I believe this issue is caused by bad ground coupling between the two devices, some of the induced charge can spark between connectors in the thunderbolt port causing computer to basicly freeze.
    To solve this issue try touching the connectors outside metal part to your macbooks body first to discharge it, then while plugging int the connector do it at slight angle so the metal of the connector touches Mac's body.
    This method has been working for me.

  • Audio distortion and clipping from imported AVCHD

    I just built a new computer that works great for video and is now playing back AVCHD no problem.
    The sound however, is the same as before. It sounds like really really bad over clipping, straight from the RAW imported video... Sounds fine on the camera and it sounds fine in my Sony Content Management Utility... But in premiere and sound booth... it's not working.
    It was also the same problem on my other computer even though I had a $4000 AD/DA converter that can go up to 24bit 192khz and I'd used programs such as Nuendo and Cubase with no problem, even at 32-bit float... (Audio and Music is my primary)
    Interesting thing is, this is also happening in Soundbooth
    Ideas?
    Problem existed on both:
    Windows 7 and Windows XP Pro SP3

    Got it! How did I not see think of this before!
    Tried a different format on the Sony HXR-NX5U, Dolby Stereo. And it works.
    What I was using before as a  LPCM (L for Linear, it's a lossless codec) Codec format which I gues premiere does not like.
    Adobe Premiere would probable recognize PCM because it is Non Linear Quantized and older format and it explains why LPCM was distorting - becuase it's on a wider linear scale that exceeds what Premiere supports - it was still seing the PCM part of the code but not that it was Linear.
    The audio nerd prevails.
    *edit*
    Huh, well I don't see PCM nor LPCM in supported audio formats.

  • Occasionally, my sound gets distorted and slow, and the Notebook seems to slow or stop totally?

    HP Envy 17 Notebook PC, Windows7 using Beats, no changes but has been doing it for months. Just never thought to ask before now. Could my problem be too many audio programs running, My Audio and Sound shows IDT Hi-Def CODEC, Intel(R) Display Audio, and ATI Hi-Def Audio Device all "Enabled" at the same time. Is this normal?

    Is anybody knows what's the matter? Any ideas? Any experience?
    Maybe I posted my problem in a wrong way.

  • Slower and slower speed

    For the past week my bb speed has become slower and slower. The speed today Sunday 17th is a staggering 291kbs. How am I meant to remain sane using this. I have contacted bt and all they do in broken english is to tell me it will settle down and get better. Last month speed was fine but now OMG. With this bad service BT are open to losing me as I have a right now to cancell my contract due to the service.
    Am I the only person putting up with this rubbish service (or lack of).
    Solved!
    Go to Solution.

     this is the hub report but if I do a speed test
    on other test sites it comes back as mega slow.
    ADSL Line Status
    Connection Information
    Line state:
    Connected
    Connection time:
    0 days, 02:12:02
    Downstream:
    2.75 Mbps
    Upstream:
    448 Kbps
    ADSL Settings
    VPI/VCI:
    0/38
    Type:
    PPPoA
    Modulation:
    G.992.1 Annex A
    Latency type:
    Interleaved
    Noise margin (Down/Up):
    8.7 dB / 21.0 dB
    Line attenuation (Down/Up):
    54.6 dB / 31.5 dB
    Output power (Down/Up):
    17.8 dBm / 12.2 dBm
    FEC Events (Down/Up):
    4667117 / 339
    CRC Events (Down/Up):
    5113 / 367
    Loss of Framing (Local/Remote):
    0 / 0
    Loss of Signal (Local/Remote):
    0 / 0
    Loss of Power (Local/Remote):
    0 / 0
    HEC Events (Down/Up):
    72379 / 418
    Error Seconds (Local/Remote):
    593 / 249

  • Sporadic audio distortion on 24"iMac

    Hi all,
    Since buying my 24" iMac, I've had a problem while watching (for example) YouTube videos, whereby audio is fine through the internal speakers, but for about 1 second in every 30 the audio distorts and gets slightly louder, then it goes back to normal. I assumed it was maybe a browser (Safari4) or plug-in issue and could live with it.
    Since upgrading to 10.6.2 yesterday morning, the exact same problem is affecting my iTunes playback, which is of course more of a problem!
    Can anyone shed any light on this? The machine was a refurb, and it's still under warranty.

    HI and Welcome to Apple Discussions...
    Try the 10.6.2 combo update available here.
    http://support.apple.com/kb/DL959
    Then repair disk permissions.
    Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
    You could also try uninstalling and reinstalling the Flash player plugin.
    Uninstall Flash
    Reinstall Flash
    Restart your Mac.
    Carolyn

  • No audio in headphone and some have distortion and some audioes are very slow.

    when i play some audioes or videos there is some distortion and some audioes are very very slow  . the notebook speaker is working fine but all this happen only in headphone, i check other headphone but same problem. but when i play hd vedio its audio working fine. but my skype and yahoo voice is very very slow can not hear. i reinstall audio driver from the hp website but same problem. i also check the volume system. 
    i have a notebookpc hp pavilion g6
    product number = LH604UA
    OPERATING SYSTEM=  WINDOW 7 64 BIT HOME PREMIUM
    Rgards
    Taimur

    Hello MTaimur,
    Please take a look at this document, which provides troubleshooting steps to restore your drivers and software by using Recovery Manager. 
    Please let me know if this helps resolve your issue.
    Good luck!
    ↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

  • Pegasus RAID Storage with Thunderbolt opinions / backup solutions?

    I'm trying to get some opinions about the Pegasus RAID Storage with Thunderbolt
    http://www.promise.com/storage/raid_series.aspx?m=192&region=en-global&rsn1=40&r sn3=47
    since I've been researching some info for a friend who is looking for extremely reilable local storage solution for his record label.
    Does anyone here use this? If so, do you use it with Time Machine? And also what type of RAID setup did you use?
    I was thinking of a RAID 5 setup, since I feel that would be best in the long run should any drives fail, the backed up data would still be available on the other drives even if the performane is a bit slower until the failed drive is replaced. I would like to hear about people's experience with these drives and RAID setups. Also if anyone might want to suggest other disk options, please feel free to mention them here.
    This would mostly be for "Setup 1" which is mostly audio production dedicated.
    There is also a need for a "Setup 2" which would be mostly business/document dedicated.
    Would it be better to get another smaller local back up solution for Setup 2?
    We're not too keen on using Time Capsule for Setup 2 as their long term performance does have a great track record.
    We're also going to be using Carbonite to have an offsite/remote backup of everything we have locally, but I'm not too familar with their services as well and if anyone here can comment on that I would apprecaite it. I've read up a bit on them and I would think to probably use their Business level service.
    Any help, advice, opinions are welcome and appreacaited!
    Thanks!

    You can (re-)install to the Pegasus raid and boot from it.
    However, you'll actually get a faster system if you use an SSD for the system drive and then just use the Pegasus for data files (and Time Machine backups of the SSD ...).
    In any case:
    Be sure to use the Promise Utility (download it from their site) to configure the RAID level etc if you don't want the default RAID 5 configuration.  (For me I prefer RAID 6 if there are more than 4 drives, RAID 1 for 2 drives and RAID 10 for 4 drives – RAID 5 is just too risky; even configured with a spare).
    If you use the Pegasus as your system drive, consider using RAID 10 on it.  You'll "only" get 6 TB storage; but it'll be fast and quite safe (much safer than RAID 5).

  • Speed up and slow down tracks

    I need a program that I can speed up and slow down tracks with. Is that possible in Logic Express? I know that it can be done in Logic Pro, however I don't need quite that much program.

    xcuse me if i jump in here without answering the original question, but that brings up something similar to me:
    if i have a setup in the arrange with a combination of various audio-files, apple loops and midi-tracks, and i want to record something additional into that (midi over connected edirol midi-keyboard): can i slow down the whole song, just to make it easier to record the new part without destructively destroying anything?
    and after that just go back to the original song-tempo?
    thanx a bunch for any thoughts!
    again, sorry balletboy for jumpin in here, hope that is ok for you :o)

  • Audio Crackles/Stutters and Slows Down on G42-230US

    My laptop's sound has been making crackling static noises and has been slowing down and stuttering at odd intervals. It makes no difference if I use the laptop speakers, headphones, or external speakers, and so far all of my media player programs have shown the same results-- I'm thinking it's a software problem, but none of the drivers I have downloaded from Support and Drivers have been effective in solving the problem. The problem is distracting enough that I can't use my media files without the sound becoming very distorted and incomprhensible at times.
    Has anyone had this issue, and if so, can you tell me what I might do to fix it? Thanks.

    hey, i also got this problem. when I'm watching a movie or something like that the audio crackels when i open something else  it seem like the audio laggs whenever the notebook has to think
    so HP or someone else help us!!!!

  • DVD Player audio track plays slower than Video and at transposed pitch

    I have a strange problem with DVD player. I have an opera DVD (not a commercial one - it is from a personal performance and is on a DVD-R disk)) which I put in my Mac Book Pro (OSX 10.5.6)and DVD Player played it fine. I wanted to try to convert the info on the DVD to extract a short section of the DVD. I went to Hand Brake and tried that, it told me I needed to install VLC which I did, Hand Brake then recoded the Files. Now when I insert the DVD though DVD Player starts automatically but plays the DVD audio at a slower speed and transposed lower. I have no idea why this is! Needless to say I do not want it playing slower. VLC also did not work very well with the audio so I have uninstalled the VLC program as it played the VOB files but the sound track was very wonky with the pitch shifting all over the place. How do I return to having DVD Player working properly?

    okay, I can help you a little bit. your dvd player (standalone) plays mpeg-2, I think, so
    in order for a disk to work in it, both the audio and video have to be combined into a whole package, which i think is video_ts.Using Toast, choose video, then dvd-video then drag n' drop, and it may work. As far as  i know, disk utility cannot make video dvd's, but  I may be wrong, and you may be right. I used iDVD, but there are probably other programs that may do as good a job of burning. Oh, and this is most important: Some blanks will work ok, and others won't. Verbatim, maxell ( I think) and Taiyo Yuden will work fine. the other ones are a gamble. I think what it's supposed to do is called muxing. I'm sure someone will correct me on this. You could try using "Burn" which is relatively cheap or Handbrake and see if that will do what you want to do. not that it's super important, but the amount of Ram in your machine is helpful too
    anyways, good luck
    John b

Maybe you are looking for