"Sound Check" Question
Some of my iTunes music was digitized with earlier versions of iTunes which did not have the "Sound Check" application, while later transfers were, so my iTunes Library is inconsistent with regard to Sound Check configurations at transfer. This is causing "volume" inconsistencies at playback on my iPod.
I have figured out how to reset my entire Library at the "zero" midpoint volume level for each song in its config which has erased any previous Sound Check adjuustments built in to some AAC files.
How do I build a new "iTunes Music" folder with all music properly adjusted by Sound Check?
15 Gigabyte (New style)
Model #M8946LL
Version 2.0.1
Thanks!
--Ken Horning
[727 byte] By [
khorning] at [2007-11-9 12:42:32]
# 1 Re: "Sound Check" Question
Sound Check doesn't change the files; it changes each track's relative volume setting in iTunes. You have to turn Sound Check on in both iTunes and the iPod.
# 2 Re: "Sound Check" Question
If you loook at the iTunes Tag info after a given song is imported, it may have a volume adjustment (less than or more than the zero midpoint) which seems to be assigned at import and stays with the song file. Isn't it this information that tells iTunes on playback whether this particular song needs volume adjustment up or down? If there is no *reference*in the song file's info tag, how does Sound Check determine "relative" values (compared to rest of the Library or playlist) for playback?
I thought that it is this information that iTunes reads on playback and makes the proper volume level adjustments using Sound Check. Enabling both Sound Check on the iTunes client on my iBook and then transferring to iPod and enabling Sound Check on the iPod seems to provide significantly inconsistent playback volumes from song to song, leaving the ear the impression that Sound Check is not working.
# 3 Re: "Sound Check" Question
Isn't it this information that tells iTunes on playback whether this particular song needs volume adjustment up or down?
Yes.
If there is no *reference*in the song file's info tag, how does Sound Check determine "relative" values (compared to rest of the Library or playlist) for playback?
iTunes "gets" this info by processing all the songs when you turn Sound Check on, and sets its volume adjustment, stored in its database, at that time.
Enabling both Sound Check on the iTunes client on my iBook and then transferring to iPod and enabling Sound Check on the iPod seems to provide significantly inconsistent playback volumes from song to song, leaving the ear the impression that Sound Check is not working.
Yeah. I don't like Sound Check; it "normalizes" volumes by setting loud down instead of turning low volumes up, and it doens't work very well.
# 4 Re: "Sound Check" Question
John, I really appreciate your help here...
--
quote:
"iTunes "gets" this info by processing all the songs when you turn Sound Check on, and sets its volume adjustment, stored in its database, at that time. "
--
And it is this information stored in the database that I want to "upate". That is, I want iTunes to reanalyze and reset these levels for all songs in my library. How do I do that short of re-importing the music from 300+ CD's using iTunes 4 so that it takes these *readings" and sets levels in the Ituunes database?
