- Brian McFee https://github.com/bmcfee
- Matt McVicar https://github.com/mattmcvicar
- Dawen Liang https://github.com/dawenl
- Colin Raffel https://github.com/craffel
- Douglas Repetto https://github.com/drepetto
- Dan Ellis https://github.com/dpwe
- Eric Battenberg https://github.com/ebattenberg
- Bryce Walburn https://github.com/BWalburn
- Oriol Nieto https://github.com/urinieto
- Romain Hennequin https://github.com/romi1502
- Ryuichi Yamamoto https://github.com/r9y9
- Rachel Bittner https://github.com/rabitt
- Stefan Balke https://github.com/stefan-balke
- CJ Carr https://github.com/Cortexelus
- Fabian Robert-Stoeter https://github.com/faroit
- Keunwoo Choi https://github.com/keunwoochoi
- Eric Humphrey https://github.com/ejhumphrey
- Carl Thome https://github.com/carlthome
- Seth Kranzler https://github.com/polyrhythmatic
- Waldir Pimenta https://github.com/waldyrious
- Hojin Lee https://github.com/hojinlee
- Paul Brossier https://github.com/piem
- Rimvydas Naktinis https://github.com/naktinis
- Jackie Wu https://github.com/wkcn
- Erik Peterson https://github.com/EMCP
- Siddhartha Kumar https://github.com/siddhugolu
- Julia Wilkins https://github.com/jlw365
- Curtis Hawthorne https://github.com/cghawthorne
- Dana Lee https://github.com/danagilliann
- Pius Friesch https://github.com/pfriesch
- Ziyao Wei https://github.com/ZiyaoWei
- Vincent Lostanlen https://github.com/lostanlen
- Steve Tjoa https://github.com/stevetjoa
- Matt Vollrath https://github.com/mvollrath
- Zhen Wang https://github.com/nehz
- Kyungyun Lee https://github.com/kyungyunlee
- Frank Zalkow https://github.com/fzalkow
- Shayenne Moura https://github.com/shayenne
- nullmightybofo https://github.com/nullmightybofo
- toddrme2178 https://github.com/toddrme2178
- Andy Sarroff https://github.com/woodshop
- Monsij Biswal https://github.com/monsij
- Taewoon Kim https://github.com/tae898
- Adam Weiss https://github.com/ajweiss
- Viktor Andreevitch Morozov https://github.com/viktorAndreevichMorozov
- Jan Schlüter https://github.com/f0k
- Darío Hereñú https://github.com/kant
- Alex Metsai https://github.com/AlexMetsai
- Jack Mason https://github.com/jack-alexander-ie
- Scott Seyfarth https://github.com/scjs
- Voodoohop https://github.com/voodoohop
- Alastair Porter https://github.com/alastair
- Fabian Keller https://github.com/bluenote10
- Ayoub Malek https://github.com/SuperKogito
- Stef van der Struijk https://github.com/NumesSanguis
- Shunsuke Hidaka https://github.com/onkyo14taro
- Eric Semeniuc https://github.com/esemeniuc
- Frank Cwitkowitz https://github.com/cwitkowitz
- Bea Steers https://github.com/beasteers
- beantowel https://github.com/beantowel
- Thor Whalen https://github.com/thorwhalen
- Stefan Sullivan https://github.com/stefansjs
- Benjamin van Niekirk https://github.com/bshall
- Kaushik Sripathi Hatti https://github.com/hskaushik
- Kaustuv Kanti Ganguli https://github.com/kaustuvkanti
Some feature extraction code was based on https://github.com/ronw/frontend by Ron Weiss.
Large portions of LibROSA were ported from MATLAB code by Dan Ellis http://www.ee.columbia.edu/~dpwe/resources/matlab/.
Some spectral features were ported from original MATLAB implementations by Erik Schmidt and Jeff Scott at the Drexel METlab http://music.ece.drexel.edu/
Additional thanks to Emanuele Coviello and Erik Schmidt for testing, bug reports and fixes.