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DLSMusicDevice broken in lion

1338 Views 4 Replies Latest reply: Feb 11, 2013 5:53 AM by TAUL RSS
Adrian_S Level 1 Level 1 (5 points)
Currently Being Moderated
Nov 17, 2011 3:17 PM

I noticed that some pre-lion work sounded strange.

I realized that the reason was that the volume of soundfonts played using DLSMusicDevice was down.


Thought I had found a workaround: increase the volume within DLSMusicDevice

by about 16dB for each instrument. Annoying, and not what should happen after an OS upgrade.


But now I have noticed that my workaround sometimes fails. Occasionally

instruments inexplicably seem to drop back to their lower volume in the middle

of the song. I had to revert to Snow Leopard to rescue some of my music.


Is there perhaps another workaround?

Is this a bug that might be fixed in the future?

MacBook Pro, Mac OS X (10.7.2)
  • Ansgeier Calculating status...
    Currently Being Moderated
    Dec 6, 2011 12:23 PM (in response to Adrian_S)

    I'm having the same issue. Tried all sorts of workarounds to no avail. This is breaking some of the music apps I've created and I am deperately seeking for a solution.


    It would make perhaps sense to file a bug report with Apple, using the "Feedback" menu item on the QuickTime Player. If everyone having this issue will file a report, Apple devs would hopfully pick it up.

  • johnfrommaggie valley Calculating status...
    Currently Being Moderated
    Jan 9, 2012 1:58 PM (in response to Ansgeier)

    I don't think Apple really cares if this function works or not,,, and it looks like they do not care to fix their own software to function within LION<,,,,       was that Lion or CRion?

  • johnfrommaggie valley Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 22, 2012 5:03 AM (in response to Adrian_S)

    Ok guys I am back. I have been working with my own findings below, and I discovered this, Give it a try. Make anew song in GB, let the default piano come up. Click to create a NEW instrument, now open DSL, as I will be referring to it as DSL, and audition some sounds till you find the one you like. LEAVE THE DSL WINDOW ALONE UNLESS YOU WANT TO ADJUST SOME SOUND PARAMETERS , DO NOT CLOSE IT. NOW,,,, click save instrument below. It will save the dls sound to the PIANO  sounds folder that GB has with it;s own sounds. If your song did not shut down, save the song. If it crashed down, reopen the song and look for the saved sound in the piano list, assign it to the default grand piano. At this point you should be up and using the sound font. I personally deleted my sound from PIANO at this point and saved it via having it assigned as an instrument to the proper sounds folder in GB... Try working this way for awhile and report back to me.... This SAVE, don't touch the DLS window technique should be a workaround for now. I saved about 10 sound fonts last night this way,,, and one of the good things is that you are saving you own set of personal favorites from the DLS list permanently in you GB folders... Report back to me,,,,,,,, I can create and post a video if need be,, Jon Sebastian

  • TAUL Calculating status...
    Currently Being Moderated
    Feb 11, 2013 5:53 AM (in response to Adrian_S)



    I found the method that using “DLSMusicdevice“ in normal volume with DAW, on the Lion.

    But, in this case that it set up in plug-in only, and the volume is remain small to playback in “QuicktTime” or using “Internal” sound source. 



    The process is copying one file from OSX10.6(SnowLeopard) to OSX10.7(Lion).

    Subject : (OSX10.6) /System/Library/Components/ “CoreAudio.component”

    To : (OSX10.7) /Library/Audio/Plug-Ins/Components/



    I think that is impossible without system disk of 10.6, because the “CoreAudio.component” have difference of internal constitution.

    I don't have any programing skill, and I can't test other environment, so this method may have a problem.



    My environment is : MacBookPro 15”(Late2008) OSX10.7(10.7.4/10.7.5)

    Tested DAW is : LogicExpress9, StudioOne2 Producer, Metro7



    Thanks and good luck.


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