ETH Zurich – Distributed Computing Group Samuel Welten 1ETH Zurich – Distributed Computing Group
Michael KuhnRoger Wattenhofer
Samuel Welten
Social Audio Features for Advanced Music Retrieval Interfaces
„Today, I would like to listen to something cheerful.“
„Something like Lenny Kravitz would be great.“
„Who can help me to discover my collection?“
…well reflects perceived music similarity.
…is as convenient to use as an audio feature space.
Solution:Derive a music similarity space from user-generated data.
We want to have something that…
Social Audio Features
…
rockpop
female
american
Madonna – like a prayer
Applying Probabilistic Latent Semantic Analysis to Music and Tags
rock60‘s
Classic rock
american
Beatles – hey jude
rockpunk
guitar
american
Greenday – basket case
rockguitar
american
metal
hard
poppiano
90‘s
female
happy
melancholicoldies
soul
male
blues
Latent class probababilities can be interpreted as coordinates
• 32 dimensional audio coordinates for over 1 million songs
• Each direction is a latent music concept• Each point characterizes a style of
music
Basket case
Hey jude
Like a prayer
ETH Zurich – Distributed Computing Group Samuel Welten 17
• Similar songs are close to each other
• Quickly find nearest neighbors
• Span (and play) volumes
• Create smooth playlists by interpolation
• Visualize a collection
• Low memory footprint– Well suited for mobile domain
Advantages of a Map
Hey Jude
Imagine
My Prerogative
I want it that way
Praise you
Galvanize
rock
pop
electronic
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Evaluation
Artist clustering
Comparison to collaborative filtering
Tag consistency
convenient basis to build music software
After only few skips, we know pretty well which songs match the user‘s mood
22
Use the map to realize a Smart Shuffle Play Mode
ETH Zurich – Distributed Computing Group Samuel Welten 24
User Study
• When users were searching for music they spent 40% of the time in the music map
• 19% used the tag cloud regularly
• Smart shuffle was the predominant play mode
We recorded the behavior of 128 persons using museek:
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Selected Comments from museek Users
Your software is a pathetic piece
of crap!
[…] Does a good job learning my
tastes[…]
[…] easy browse and make playlists. Autoplay related music is
very good.넥원 잘돌아갑니다 버벅거리지안고 굿
ui 도 굿이고요 ![...] Love the ability
to automatically play similar music.
[...]
Good potential, but album art is tiny &
blurry
[…] Just got it and want to put more music on my sd
card now.
Pretty cool once you get the hang of it.
Awesome app beating the ipod
genius feature and coverflow. […]
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