DSP Effect: ReplayGain (Apply)

[Spoon]

Has two main purposes, a DSP effect dBpoweramp Music Converter can use to apply Album Gain to the audio as it processes it (source files must contain replaygain: album gain tag), or to add ReplayGain abilities to uPlayer.

Download:

http://www.dbpoweramp.com/beta/ReplayGain_(Apply).zip 328KB

Unzip the contents to Illustrate\dbpoweramp\DSPs\

[hinges]

Re: DSP Effect: ReplayGain (Apply)

Thanks! This is exactly what I was looking for, but unfortunately it seems to behave rather strangely - I ran an album through it this afternoon and used WaveGain (which I have been using up 'til now) to check if the volume came out at a sensible level, but they didn't. All tracks had album gain tags that read -2.08 dB (which were created by the ReplayGain DSP when the files were ripped)

WaveGain result from tracks before DSP:

Gain | Peak | Scale | New Peak | Track
---------------------------------------------
-1.80 dB | 25690 | 0.81 | 20882 | 1
+3.47 dB | 18135 | 1.49 | 27041 | 2
-0.65 dB | 24907 | 0.93 | 23111 | 3
-3.18 dB | 26657 | 0.69 | 18485 | 4
-2.13 dB | 24872 | 0.78 | 19463 | 5
-2.25 dB | 24885 | 0.77 | 19206 | 6

Recommended Album Gain: -2.07 dB Scale: 0.7880

WaveGain result from tracks after DSP:

Gain | Peak | Scale | New Peak | Track
---------------------------------------------
-1.85 dB | 25726 | 0.81 | 20791 | 1
+3.45 dB | 17884 | 1.49 | 26604 | 2
-0.72 dB | 24450 | 0.92 | 22505 | 3
-3.21 dB | 27106 | 0.69 | 18731 | 4
-2.14 dB | 25153 | 0.78 | 19660 | 5
-2.28 dB | 25387 | 0.77 | 19526 | 6

Recommended Album Gain: -2.11 dB Scale: 0.7843

It would appear that the DSP has actually increased the volume by a small amount. In order to check that this wasn't connected to the album, I also did the same with a louder, modern album, but this produced similar results.

WaveGain result from tracks before DSP:

Gain | Peak | Scale | New Peak | Track
---------------------------------------------
-10.97 dB | 32731 | 0.28 | 9257 | 1
-10.96 dB | 32731 | 0.28 | 9267 | 2
-11.25 dB | 32731 | 0.27 | 8963 | 3
-11.04 dB | 32731 | 0.28 | 9182 | 4
-8.65 dB | 32730 | 0.37 | 12091 | 5
-11.03 dB | 32731 | 0.28 | 9193 | 6
-9.07 dB | 32731 | 0.35 | 11520 | 7
-10.36 dB | 32731 | 0.30 | 9930 | 8
-9.97 dB | 32731 | 0.32 | 10386 | 9
-11.52 dB | 32731 | 0.27 | 8689 | 10
-10.71 dB | 32731 | 0.29 | 9538 | 11

Recommended Album Gain: -10.90 dB Scale: 0.2851

WaveGain result from tracks after DSP:

Gain | Peak | Scale | New Peak | Track
---------------------------------------------
-11.04 dB | 32767 | 0.28 | 9193 | 1
-11.03 dB | 32767 | 0.28 | 9203 | 2
-11.34 dB | 32767 | 0.27 | 8880 | 3
-11.09 dB | 32767 | 0.28 | 9140 | 4
-8.68 dB | 32767 | 0.37 | 12062 | 5
-11.11 dB | 32767 | 0.28 | 9119 | 6
-9.11 dB | 32767 | 0.35 | 11480 | 7
-10.43 dB | 32767 | 0.30 | 9861 | 8
-10.04 dB | 32767 | 0.31 | 10314 | 9
-11.61 dB | 32767 | 0.26 | 8609 | 10
-10.81 dB | 32767 | 0.29 | 9439 | 11

Recommended Album Gain: -10.97 dB Scale: 0.2828

[Spoon]

Re: DSP Effect: ReplayGain (Apply)

All our tests were against Foobar and the results were identical (except for rounding changes).

[Spoon]

Re: DSP Effect: ReplayGain (Apply)

Moved into the DSP R4 beta:

http://forum.dbpoweramp.com/showthread.php?p=82157#post82157

[Porcus]

Re: DSP Effect: ReplayGain (Apply)

N00bish question, but:
What is the difference between the ReplayGain DSP and the ReplayGain (Apply) DSP?

[Spoon]

Re: DSP Effect: ReplayGain (Apply)

The apply changes the audio, the normal non-apply stores the RG value in a tag, for the player to adjust.