I have been struggling with this issue myself recently. This is what I have discovered, and how I have worked around the problem.
Summary ======= 1. iTunes generates some pretty perverse Soundcheck values and stores them in the MP3 tag field: COMMENT ITUNNORM. (In my case these were converted by SS to volume adjustment of anything between -12dB & 3dB for tracks with ostensibly similar volumes.) 2. iTunes generates these values whether or not you tell it to use Soundcheck data on playback or not. (This is the only way that you can "disable" Soundcheck in iTunes.) 3. I figured my best bet was to use iTunes Manual Volume Adjustment option. 4. Whilst Bug 3207 did say that manual adjustment should override Soundcheck data, this (no longer) seems to be the case. (See my updates to that bug at comment#13 and beyond.) 5. I could delete the ITUNNORM data from the MP3 tag, but really wanted to retain it in case it proved to be of some future value. Workaround ========== I have used MP3tag to effectively archive the ITUNNORM data to a tag field that I never use (in my case MIXARTIST). This is done using the MP3tag "Actions" mechanism. 1. Definition of the Action Group I called: "Archive ITUNNORM" 1.1 Action type: Format value Field: MIXARTIST Formatstring: $if(%comment itunnorm%,%comment itunnorm%,%mixartist%) 1.2 Action type: Remove Fields Field: COMMENT ITUNNORM 2. Definition of the Action Group I called: "Restore ITUNNORM" 2.1 Action type: Format value Field: COMMENT ITUNNORM Formatstring: $if(%mixartist%,%mixartist%,%comment itunnorm%) 2.2 Action type: Remove Fields Field: MIXARTIST Notes - You may use MP3tag to apply either action group to as large a range of mp3 files as you wish. - Multiple executions of either action group may be made to the same mp3 file. - The effect is to archive the COMMENT ITUNNORM data to MIXARTIST, or to restore the data should it prove of value in the future. - Once this ITUNNORM data has been "archived" any manual volume adjustments that you apply via iTunes will be picked up by SS. -- Tradewind25 Geoff J. ------------------------------------------------------------------------ Tradewind25's Profile: http://forums.slimdevices.com/member.php?userid=8432 View this thread: http://forums.slimdevices.com/showthread.php?t=28524 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/discuss
