TY - GEN
T1 - An individually tunable perfect reconstruction filterbank for banded waveguide synthesis
AU - Fink, Alex
AU - Thornburg, Harvey
AU - Spanias, Andreas
PY - 2010
Y1 - 2010
N2 - In gaming and other multimedia applications, there is an increasing need to simulate and transform the sounds of physical interactions with real-world objects. When these sounds are based upon source recordings, this motivates the need for flexible, yet ecologically valid resyntheses. With modal analysis as a front end, banded waveguide resynthesis enables flexible modifications to dynamic spectral content and varied forms of interaction. Unfortunately, traditional banded waveguide models using biquad filters can have problems with undesired transient behavior. To this end, we introduce a new perfect reconstruction filterbank that allows for each filter to be individually tuned to a desired mode frequency and precisely cancel the other selected frequencies. Comparisons with traditional biquad models amply demonstrate the improved transient response and overall fidelity of our model. In addition, examples of resynthesis, transformation, and alternative interaction with real-world recordings are given.
AB - In gaming and other multimedia applications, there is an increasing need to simulate and transform the sounds of physical interactions with real-world objects. When these sounds are based upon source recordings, this motivates the need for flexible, yet ecologically valid resyntheses. With modal analysis as a front end, banded waveguide resynthesis enables flexible modifications to dynamic spectral content and varied forms of interaction. Unfortunately, traditional banded waveguide models using biquad filters can have problems with undesired transient behavior. To this end, we introduce a new perfect reconstruction filterbank that allows for each filter to be individually tuned to a desired mode frequency and precisely cancel the other selected frequencies. Comparisons with traditional biquad models amply demonstrate the improved transient response and overall fidelity of our model. In addition, examples of resynthesis, transformation, and alternative interaction with real-world recordings are given.
KW - Digital filters
KW - Modeling
KW - Signal reconstruction
KW - Signal synthesis
UR - http://www.scopus.com/inward/record.url?scp=78049361067&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78049361067&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2010.5496243
DO - 10.1109/ICASSP.2010.5496243
M3 - Conference contribution
AN - SCOPUS:78049361067
SN - 9781424442966
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 37
EP - 40
BT - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010
Y2 - 14 March 2010 through 19 March 2010
ER -