Download for Mac Download for Windows Buy Now Available on the Mac App Store
Current Version: 3.7.5
System Requirements Mac:
Intel Processor
Mac OS X 10.6 or later
iTunes 7 or later
System Requirements PC:
Windows 10, 8, 7, Vista or XP
iTunes 7 or later

Frequently Asked Questions

How exactly does iVolume adjust my songs?

iVolume effectively repairs the built-in “Sound Check” function of iTunes. Information about the loudness is stored by iTunes in a tag named iTunNORM inside your songs. This information is used for playing a song a bit louder or softer at playback time whenever Sound Check is turned on. iTunes' loudness analysis is very fast but unfortunately not very accurate so that Sound Check is not satisfying out-of-the-box. That's were iVolume comes into the game: iVolume re-analyzes every song with a professional algorithm that's oriented on the acoustic perception of the human ear and iVolume then permanently replaces the information in the iTunNORM tag of your songs with perfect values.

Is there any loss in quality to my songs?

No. iVolume does not re-encode your songs. It just replaces the information in the iTunNORM tag with perfect values. This information is used at playback-time to play a song softer or louder whenever Sound Check is turned on.

Do I need iVolume to play my songs?

No, you just let iVolume run once (every time you've added new songs) over your library. Then you play your songs as usual with iTunes, your iPod, iPhone, iPad, or Apple TV. You just have to make sure to have Sound Check turned on in iTunes or on your playback device so that the adjustments made by iVolume take effect.

If iVolume doesn't find iTunes or doesn't display the latest library, what's the cause?

iTunes provides information about its library though a so called XML file to other applications. Important: For that you have to turn on „Share iTunes Library XML with other applications“ in the „Advanced“ settings of iTunes.

What file formats are supported by iVolume?

iVolume supports all formats that permit embedding the iTunNORM tag; currently that is MP3, AAC (.m4a, .m4b), AIFF and Apple Lossless. Unfortunately Video files and WAV files do not support the iTunNORM tag, so they can't be adjusted by iVolume.

Are songs purchased from the iTunes Store supported?

Yes, songs purchased in the current “iTunes Plus” format (.m4a) are supported. Older iTunes purchases may not be supported, because songs purchased before mid 2009 usually were copy-protected (.m4p) and that renders third party applications like iVolume impossible to decode such a song. Please see the iTunes Store for details about upgrading your music to the iTunes Plus format if you're affected by this. Songs can also be upgraded by using iTunes Match.

My iPod/iPhone/iPad is connected via Dock Connector to my stereo system. Is that supported?

Unfortunately that depends. There seem to be at least two different ways to get audio out of the Dock Connector. Most probably that is analog and digital. In some cases Sound Check works just fine, but in other cases the volume adjustments are simply ignored. Hopefully Apple fixes this issue at some time. The best option is to use the headphone jack whenever possible.

What if I want to play my songs at their original volume level for some reason?

Just turn off Sound Check and all modifications made by iVolume will be ignored and your songs all play at their original volume level.

Can I burn adjusted Audio-CDs?

Yes. You have to use iTunes to burn the Audio-CD. In the burning dialog of iTunes there is a checkbox “Use Sound Check”. Turn that on to burn volume adjusted Audio-CDs.

What exactly is shown by this fancy speed indicator?

It displays the current speed factor of the song analysis compared to the real duration of the songs. E.g. if it displays a factor of 60, a 5 minute song is analyzed in just 5 seconds. While analyzing it additionally displays the number of available processor cores.

I have used iVolume but the “Volume Adjustment” sliders for my songs are still set to “None” in iTunes - why?

Please don't confuse the “Volume Adjustment” sliders with “Sound Check”. iTunes offers two ways to adjust the volume of songs. The manual “Volume Adjustment” slider is in the “Options” tab of the song information dialog. But iVolume modifies the “Sound Check” information. This value can be seen in the “Summary” tab of the song information dialog; it's labeled “Volume”. For best results, the manual “Volume Adjustment” sliders have to be set to “None” so that they do not interfere with “Sound Check”. But iVolume can check this for you automatically.

My Mac is not supported by the latest version of iVolume. Where can I download an older iVolume version?

If you have a Mac running Mac OS X 10.4 or 10.5 or a Mac with PPC processor, please download iVolume Version 3.6 here.

© 2014, Manfred Schwind Software
English Deutsch