Add volume normalization

[colegleason]

No description provided.

[ajmadsen]

How would this work for youtube videos?

[colegleason]

It would have to sample the volume for the beginning of the song and adjust
to keep amplitude within some range.

On Wed, Sep 17, 2014 at 12:28 PM, Adam Madsen [email protected]
wrote:

How would this work for youtube videos?

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Reply to this email directly or view it on GitHub
#29 (comment).

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

[colegleason]

average amplitude, perhaps

Acoustics used to do this live, not modifying the files.

On Wed, Sep 17, 2014 at 12:29 PM, Cole [email protected] wrote:

It would have to sample the volume for the beginning of the song and
adjust to keep amplitude within some range.

On Wed, Sep 17, 2014 at 12:28 PM, Adam Madsen [email protected]
wrote:

How would this work for youtube videos?

—
Reply to this email directly or view it on GitHub
#29 (comment).

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

[colegleason]

How is beats playing youtube videos? Mplayer already supports this:
http://www.commandlinefu.com/commands/view/8893/normalize-volume-output-in-mplayer

On Wed, Sep 17, 2014 at 12:30 PM, Cole [email protected] wrote:

average amplitude, perhaps

Acoustics used to do this live, not modifying the files.

On Wed, Sep 17, 2014 at 12:29 PM, Cole [email protected] wrote:

It would have to sample the volume for the beginning of the song and
adjust to keep amplitude within some range.

On Wed, Sep 17, 2014 at 12:28 PM, Adam Madsen [email protected]
wrote:

How would this work for youtube videos?

—
Reply to this email directly or view it on GitHub
#29 (comment).

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com

[ajmadsen]

For actual audio files, you can use something like replaygain and store the values in the database no problem.

For audio sources you can't scan entirely before playing, you can do some sort of adaptive scaling/compressing, but that will destroy any sort of dynamic range in a song.

[colegleason]

I would rather have the adaptive scaling than constantly have to adjust the
sound level in beats.

On Wed, Sep 17, 2014 at 12:34 PM, Adam Madsen [email protected]
wrote:

For actual audio files, you can use something like replaygain and store
the values in the database no problem.

For audio sources you can't scan entirely before playing, you can do some
sort of adaptive scaling/compressing, but that will destroy any sort of
dynamic range in a song.

—
Reply to this email directly or view it on GitHub
#29 (comment).

Cole Gleason

Student, University of Illinois at Urbana-Champaign
Email: [email protected]
Website: colegleason.com