The VideoLAN Forums

Hi!

Has the VLC one or two volume normalizer?

1:
In the Audio Settings of the Simple Prefences:
a) Normalise volume to
aa) boolean/string (default: false - vlcrc: audio-filter=normvol
ab) value (default: 2.0 - vlcrc: norm-max-level=2.000000)

b) Replay gain mode (default: None - vlcrc: audio-replay-gain-mode=none) <--- ???

In the setting Audio - Filters of the Advanced Preferences:
c) volume normaliser (default: false - vlcrc: audio-filter=normvol)

In the setting Audio - Filters - Volume normaliser of the Advanced Preferences:
d) Number of audio buffers (default: 20 - vlcrc: norm-buff-size=20)
e) Maximal volume level (default: 2.0 - vlcrc: norm-max-level=2.000000)

2:
In the setting Audio of the Advanced Preferences:
a) Replay gain mode (default: None - vlcrc: audio-replay-gain-mode=none) <--- ???
b) Replay preamp (default: 0.00 - vlcrc: audio-replay-gain-preamp=0.000000)
c) Default replay gain (default: -7.00 - vlcrc: audio-replay-gain-default=-7.000000)
d) Peak protection (default: true - vlcrc: audio-replay-gain-peak-protection=1)

I quote from Wikipedia:

ReplayGain is a proposed standard ... to measure the perceived loudness of audio in computer audio formats such as MP3 and Ogg Vorbis. It allows players to normalize loudness for individual tracks or albums. This avoids the common problem of having manually to adjust volume levels between tracks when playing audio files from albums that have been mastered at different loudness levels.

Who can explain that?

Can't anyone answer?

ReplayGain is a metadata stored in (potentially) each audio file; it's just a factor to the audio volume.

The volume normalizer is an old audio filter for dynamic range compression. You should probably use the compressor instead these days.

Hi Rémi Denis-Courmont,

I do not understand. You write:

ReplayGain is a metadata stored in (potentially) each audio file; it's just a factor to the audio volume.

What then do the values Track and Album for the Replay gain mode?