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Topic: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB (Read 372 times) previous topic - next topic
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[Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

When I scan files with ReplayGain for their Track Gain (including True Peak levels with 4 times oversampling, as set in in Preferences - Tools - ReplayGain Scanner), I get the results you can see at the bottom of the pic. The Track Peak column on the far right gives both a value between 0 and 1, as well as the actual True Peak level in dBTP in brackets to the right. I update the file tags, no problem so far.

In the Playlist, I have a custom column labelled TP, which I want to display the True Peak levels in dB. This is the string I am currently using to do so:

%replaygain_track_peak%

However, the value it returns is the value between 0 and 1, as you can see from the picture. It's the same value as the first number in the Track Peak column of the scan results.

So, to cut a long story short, how do I get FB to display the second TP number in dBTP instead? What string would I need to use?

Thanks in advance for any help!

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #1
Good request. The floating point values are hard to interpret outside of few memorized values like 0.50, 0.707. I'd also like a display in decibels for the difference level in foo_bitcompare. I don't think the conversion is doable with a title formatting string as that would involve a power function.

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #2
Thanks!

Yeah, I asked this recently in an unrelated thread, and didn't get any replies, so thought it deserved its own one.

My programming chops are non-existent, TBH even the simple strings scare me... ;) But my reasoning is, I mean the value is actually there, right now, within FB2k itself, and so it should just be a matter of being able to copy it over into the playlist field, right?

I'm a mastering engineer, and when I've mastered all of the tracks individually, it's fantastic to be able to load them all into FB2K for the final album listen through/QC, with the LUFS integrated and TP levels right there in front of me (after RPGain scanning, of course).

The programmability of FB is one of its best points, but not being a programmer sometimes means I require help from the (fantastic) community in order to get it to do exactly what I want it to do. :)

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #3
I don't think the conversion is doable with a title formatting string as that would involve a power function.
Maybe it is doable with JScript panel?

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #4
I remember when almost everyone I knew was listening to MP3s at wildly varying volumes while peak normalising their soundtrack audio, but whenever I could I'd try to share the joy of ReplayGain. Now the world's gone mad over EBU-R128 though, and loudness units are everywhere, is referring a target volume of 89dB starting to feel a little silly or is it just me?

Not so long ago I was explaining to a poster in a video forum, how to convert/adjust soundtrack audio to -23LUFS with fb2k. He was fairly familiar with fb2k so I was able to explain the process in ReplayGain-speak after providing a quick ReplayGain to LU translation. Someone still came along and told me off for not explaining it according the EBU standard.

I'll confess I don't get it. I understand the need for backwards compatibility. There must be at least five MP3 players on the market capable of reading ReplayGain tags. The data written to tags is one thing though. Couldn't fb2k display volume in both formats while ReplayGain fades away? It seems virtually inevitable to me.

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #5
For me it comes down to the fact that loudness standards and metering have been adopted by the film and broadcast industries (and to a lesser, but growing extent, audio engineers), and it is a far better gauge of perceived loudness than VU, peak, RMS or so called "DR" figures ever were. So while it might seem like a fad, for me it's actually a much more useful measurement, as I am balancing the track to track loudness on albums on a daily basis.

Being able to see the LUFS integrated figures for tracks in the FB playlist is great (I could finally ditch that horrible, buggy DR component), and being able to see the over-sampled TP level in dB would just be the icing on the cake. ;)

So is it possible?

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #6
I remember when almost everyone I knew was listening to MP3s at wildly varying volumes while peak normalising their soundtrack audio, but whenever I could I'd try to share the joy of ReplayGain. Now the world's gone mad over EBU-R128 though, and loudness units are everywhere, is referring a target volume of 89dB starting to feel a little silly or is it just me?
This reminds me of a recent thread where someone created a custom column that showed the ReplayGain track peak in terms of LUFS, but I can't seem to find it at the moment.

Edit: Never mind. I was thinking of darkflame23's other thread that covered ReplayGain adjustment in terms of LUFS. I second his desire to see the "true peak" value in similar terms.

Re: [Request] View ReplayGain Track Gain True Peak Levels in Playlist as dB

Reply #7
Yes, guilty as charged!

My request had nothing to do with ReplayGain or adjustment for listening (although I do use that when I make a dinner party playlist), I just wanted the pure Integrated LUFS value readout in the playlist. As ReplayGain now uses LUFS to work out its values, it was possible to derive the figure from the ReplayGain one. Some very kind souls helped me out there!

 
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