MAPS - MIDI Aligned Piano Sounds

MAPS, standing for MIDI Aligned Piano Sounds, is a piano sound database dedicated to research on multi-F0 estimation and automatic transcription:

• MAPS is composed of about 31 GB of CD-quality recordings in .wav format.
• High quality audio is obtained by means of Virtual Piano softwares and a Yamaha Disklavier.
• Nine settings of different pianos and recording conditions were used.
• Four categories of sounds are provided:
  • isolated notes and monophonic sounds
  • random chords
  • usual chords
  • pieces of music
• The ground truth is provided for all sounds, in MIDI and text formats. The audio was generated from the ground truth in order to ensure the accuracy of the annotation.
• MAPS is freely released with a Creative Commons license.

License: Creative Commons (http://creativecommons.org/licenses/by-nc-sa/2.0/fr/deed.en_US)

Author: Valentin Emiya (Telecom ParisTech, 2008) 

References:

• Multipitch estimation of piano sounds using a new probabilistic spectral smoothness principle, V. Emiya, R. Badeau, B. David, IEEE Transactions on Audio, Speech and Language Processing, 2010.
• Transcription automatique de la musique de piano, V. Emiya, PhD Thesis, Telecom ParisTech, 2008.