Realisation of "virtual" musical instruments : Measurements of the impulse response of violins using MLS technique
If a musical instrument is treated as linear systems characterised by their impulse response, the concept of a virtual instrument can be realised. The best measurement of the impulse response was achieved using the direct maximum length sequence excitation signal, applied to the bridge of the violin by a current-to-force transducer. The acoustic pressure radiated from the violin's body is then sampled by a microphone located in an anechoic chamber, and the impulse response is obtained by cross-correlation of the acoustic signal with the excitation signal. This detects all the timbre and reverberant quality of the violin. These measurements are then used to determine the virtual violin, a numerical filter than can add all the required information to an anechoic input signal.
Bibliographic Reference: Paper presented: CIARM, Ferrara (IT), May 19-20, 1995
Availability: Available from (1) as Paper EN 39095 ORA
Record Number: 199511094 / Last updated on: 1995-08-18
Original language: en
Available languages: en