Bandwidth Enhanced Sinusoidal Modeling in Lemur
Kelly Fitz, Lippold Haken · 1995
We present a system for sound modeling and synthesis that preserves the elegance and malleability of a sinusoidal model, while accommodating sounds with noisy (non-sinusoidal) components. We use an enhanced McAulay-Quatieri (MQ) style analysis that extracts bandwidth information in addition to the sinusoidal parameters for each partial. To produce noisy components, we synthesize with sine wave oscillators that have been modified to allow the introduction of variable bandwidth. The enhanced MQ analysis and the bandwidth-ehanced oscillators are implemented in Lemur, a widely distributed Macintosh program (free at the demonstration), which will be used to demonstrate the technique.