iPhone 3GS from AT&T. Free Shipping
Troubleshooting GarageBand: iSub distortion
Several readers, including Oliver Reeve, have reported distorted sound from their iSub when using GarageBand. Reeve writes: "I have just installed GarageBand on my flat panel iMac 700MHz with 768MB RAM. When I play tracks on it the iSub distorts badly. In fact if I play regular tracks on iTunes while GarageBand is open the iSub will distort as well. If I make a track on GarageBand then export it to iTunes and close GarageBand the tune plays distortion free in iTunes. It makes no difference if I plug the iSub into a USB hub or directly into the iMac. The only way to stop the distortion is to mute the iSub or turn the iSub output right down."
A thread on the Apple discussion boards contains posts from several other readers having this problem. Most posts indicate that the distortion occurs mostly at mid-range frequencies, with extremely low bass coming through relatively clear.
One user reports that going to GarageBand's preferences (the Audio/MIDI pane) and changing the "Optimize" setting to "Better performance". Some readers report that this method removes some or all of the distortion, while others report little change in the sound quality after switching the setting.
Feedback? Late-breakers@macfixit.com.
Resources
resolved. Not sure why. Since installing garageband I have installed the safari
and Java update. Maybe system optimisation after these installs helped??
usage is maxed out. (USB Audio requires the CPU process the signal, and
send it out over the USB cable)
GarageBand uses most, if not all, of the CPU on most computers out there.
at least during playback, some people have reported that closing the window
reduces CPU usage by garageband (not sure if they hit the red close button,
or if they just hid the window)
I appear to have taken care of this on my iBook (900mhz) I don't have
Garbage Band on my book anymore, but all my audio apps (Soundtrack,
Digital Performer, Peak, etc.,) started giving me not only distorted or static
filled playback, regardless of the application I was using; but my damn
computer would switch the audio output all by its friggin self! I use
soundsticks for recreational listening, and have a Griffin Powerwave that I use
to hook up to my turntables, headphones, etc.
Not cool if at say 1 AM I'm futzing around with a track in Digital Performer,
and the damn computer suddenly starts blaring music out of the
soundsticks!.
I downloaded the Quicktime 6.4 reinstaller and ditched 6.5, now all appears
to be back to normal. No static/distortion, and the audio output stays with
what it's set at. Oh yeah, my flippin USB keyboard and mouse would
suddenly no longer exist at times as well, taken care of too.
Dunno if it's just an iBook thing, but ditching QT 6.5 seems to have worked
for me.
do interesting sound routing (like with Detour), but I keep on reading of
problems with them.. if I remember correctly, some USB speakers even
caused kernel panics infrequently in an old version of OS X. Seems like an
unnecessary complication to me.
- by goldsrunescape123 February 25, 2009 1:31 AM PST
- http://www.lotro-golds.us
- Like this Reply to this comment
-
(5 Comments)http://www.lotrogolds.eu
http://www.wowgolds.us
http://www.goldsrunescape.com
http://www.runescape2gold.net
http://www.cheap-mesos.com
http://www.cheaprunescape.com