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Creating a mood-scanner, Possible?
odyssey
post Feb 12 2008, 12:42
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My foobar2000 just went from Hardcore "Scooter" to gentle "Enya"... And I thought "We live in 2008, it MUST be possible to analyze audio data for it's energy and generally adapt a simple category for it, something like "sad/romantic/happy/energy".

I know this has been discussed several times already, and I'm not looking for a bunch of posts about this being impossible, but positive thoughts about how this could be done! This will never replace the need for genres and maybe BPM etc., but it could be a great addition to existing meta-data.

In a seperate thread we can discuss the user-interface that can handle all this wink.gif


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knutinh
post Feb 22 2008, 12:24
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http://www.pandora.com/mgp.shtml

The "music genome project" was based on manual analysis of a large music database. However, I imagine that identifying your songs, then doing a database lookup to such a database is a lot easier and more precise.

For automatic characterization, I tend to agree with what is suggested:
1. BPM analysis
2. "loudness" analysis
3. Perhaps some frequency analysis indicating the number of "harmonic" sources at any time

-k
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plnelson
post Feb 22 2008, 15:10
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QUOTE (knutinh @ Feb 22 2008, 06:24) *
http://www.pandora.com/mgp.shtml

The "music genome project" was based on manual analysis of a large music database. However, I imagine that identifying your songs, then doing a database lookup to such a database is a lot easier and more precise.

For automatic characterization, I tend to agree with what is suggested:
1. BPM analysis
2. "loudness" analysis
3. Perhaps some frequency analysis indicating the number of "harmonic" sources at any time

-k


Am I the only person in this conversation who has actually read up on the science on this topic? N.B. that any automatic mood-sensing scheme must be able to detect transitions from major to minor chords and vice versa.
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odyssey
post Feb 22 2008, 16:04
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QUOTE (plnelson @ Feb 22 2008, 15:10) *
Am I the only person in this conversation who has actually read up on the science on this topic? N.B. that any automatic mood-sensing scheme must be able to detect transitions from major to minor chords and vice versa.

It's something like that I was thinking of. There are already techniques for detecting the overall key of a song, and I would assume that it's possible to do finer recognization like this.

Should we call this "melodic-mood" from now on, to prevent messages like "It's impossible to detect mood since lyrics are not taking into account"? I'm fully aware of that, and I know that people have different ways of listening to music. Personally I listen to the melody more than I hear the lyrics, and I would rather base my playlist mixing on a melodic-mood than lyrical similarities.

Also if the audio is analyzed this way, you could probably get things like "energy" and maybe even detect probabilities of "Rock", "Celtic", "Electronic" songs by looking at the characteristics of different instruments.

(By the way, creating a lyrics scanner could be a nice idea as well, but I have no idea where we are in something like that wink.gif ...and I really don't want to mix it into this topic.)

I think that Tweet Web is a nice idea, and it follows the last.fm principle with users defining a cloud, but I would like to stay on automatic tagging in this topic.

This post has been edited by odyssey: Feb 22 2008, 16:12


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Posts in this topic
- odyssey   Creating a mood-scanner   Feb 12 2008, 12:42
- - LaserSokrates   Amarok has a moodbar, however it does not "ju...   Feb 12 2008, 12:53
- - kotekzot   almost everything is possible, but there are many ...   Feb 12 2008, 12:56
- - ionicism   There are programs like Moody, but those only let ...   Feb 12 2008, 12:58
- - odyssey   QUOTE (LaserSokrates @ Feb 12 2008, 12:53...   Feb 12 2008, 13:06
|- - kotekzot   QUOTE (odyssey @ Feb 12 2008, 15:06) QUOT...   Feb 12 2008, 13:10
|- - odyssey   QUOTE (kotekzot @ Feb 12 2008, 13:10) bes...   Feb 12 2008, 13:34
|- - plnelson   There's currently no scientific basis for musi...   Feb 19 2008, 23:44
- - MichaelW   I'm assuming a manually assigned tag isn't...   Feb 12 2008, 13:07
- - kotekzot   so we've moved on from automated audio identif...   Feb 12 2008, 13:51
|- - odyssey   QUOTE (kotekzot @ Feb 12 2008, 13:51) so ...   Feb 12 2008, 14:13
- - Go2Null   I manually tag mine (not complete), based on the f...   Feb 18 2008, 16:05
- - Zoom   I tend to agree that it is a subjective thing when...   Feb 18 2008, 18:58
|- - SebastianG   The MusicIP mixer is supposedly able to generate ...   Feb 18 2008, 20:32
|- - BrownRB   QUOTE (SebastianG @ Feb 18 2008, 14:32) T...   Feb 21 2008, 14:26
|- - Eli   QUOTE (SebastianG @ Feb 18 2008, 14:32) T...   Feb 21 2008, 16:32
|- - SebastianG   QUOTE (Eli @ Feb 21 2008, 16:32) QUOTE (S...   Feb 22 2008, 10:03
- - tgoose   from http://gjay.sourceforge.net/ QUOTE GJay (Gtk+...   Feb 18 2008, 21:54
- - Emon   Just to illustrate the difficulty, think of songs ...   Feb 20 2008, 01:44
- - Teknojnky   I made a Mediamonkey script that has a dj mode whi...   Feb 20 2008, 02:22
- - digital   . Man, What a HUGE topic! Take the time to ...   Feb 20 2008, 11:25
- - kotekzot   winamp does (or at least did - i haven't used ...   Feb 20 2008, 15:36
- - knutinh   http://www.pandora.com/mgp.shtml The "music ...   Feb 22 2008, 12:24
|- - plnelson   QUOTE (knutinh @ Feb 22 2008, 06:24) http...   Feb 22 2008, 15:10
|- - odyssey   QUOTE (plnelson @ Feb 22 2008, 15:10) Am ...   Feb 22 2008, 16:04
- - ClementFerrand   Hi everyone, I'm well aware that this topic h...   Oct 6 2011, 14:42


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