Researchers:

• Bertrand Scherrer
• Philippe Depalle

• This page is intended as a complement to an article submitted to ICASSP 2009.

Sound recordings were performed by a classically trained guitarist on an Alhambra Model 1C guitar (average quality study guitar). The recordings were performed in a controlled acoustic environment (hemi-anechoic room). The microphones were positioned 50 cm away from the guitar and the performer was instructed to keep the guitar in such a way that the microphones would aim at the junction between the tone hole and the fret board with a 45 degree angle. The analog to digital conversion was performed using an RME Micstasy at 44.1kHz, 16 bits.

The performer was asked to play 20 ``identical” rest and free strokes on the three first strings (E4, B3, G3 where A4 is at 440Hz). The strings that were not played were damped . The rest and free strokes were performed in a slightly exaggerated way in this first series of experiments since we wanted to give a proof of concept before developing a more refined technique.

All the tones were performed by plucking the string with a mediumly tensed middle finger, with an angle of attack of 45 degrees, at a constant plucking position of 10 cm from the bridge.