# Replaygain for Flac possible?
**URL:** https://community.mp3tag.de/t/replaygain-for-flac-possible/10989
**Category:** Support
**Created:** [October 22, 2010, 9:20am UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989 "2010-10-22T09:20:40Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@EB1000](https://community.mp3tag.de/u/EB1000)
#### Post date: [October 22, 2010, 9:20am UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989/1 "2010-10-22T09:20:40Z")
Hi
I'm new to mp3tag. I have many flac files with replaygain tagging added using foobar2000. I can see the replaygain data using mp3tag. I tried adding new filed %REPLAYGAIN\_ALBUM\_GAIN% as suggested but no data is shown. Is replaygain tagging for flac files possible?
thanks
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [October 22, 2010, 10:08am UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989/2 "2010-10-22T10:08:46Z")
Where exactly do you want to add a field?
In the tag panel you must use REPLAYGAIN\_ALBUM\_GAIN (no % chars).
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### Author:  [@EB1000](https://community.mp3tag.de/u/EB1000)
#### Post date: [October 22, 2010, 11:31am UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989/3 "2010-10-22T11:31:09Z")
Thanks, I got it.
now just one last question, is there a way to automatically read track gain of all files' and then add a constant 3db to all values and write them back? Does mp3tag support command line switches?
Many thanks
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [October 22, 2010, 11:54am UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989/4 "2010-10-22T11:54:32Z")
Are you sure you wanna add +3 dB?
foobar2000 has a preamp setting that can amplify the replaygain volume during playback.
Anyway there's just been a thread about this:
[/t/10978/1](https://community.mp3tag.de/t/10978/1)
No command line for tagging operations. Only for adding files to the program.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:22pm UTC](https://community.mp3tag.de/t/replaygain-for-flac-possible/10989/5 "2026-02-09T12:22:37Z")