1 / 16

Parametric Trombone Synthesis by Coupling Dynamic Lip Valve and Instrument Models

Parametric Trombone Synthesis by Coupling Dynamic Lip Valve and Instrument Models . Tamara Smyth ( tamaras@cs.sfu.ca ) Frederick Scott (fss3@cs.sfu.ca). 8 th Sound and Music Computing Conference (SMC), Thursday July 7 , 2011, Padova , Italy. Outline. Trombone instrument model

liang
Télécharger la présentation

Parametric Trombone Synthesis by Coupling Dynamic Lip Valve and Instrument Models

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Parametric Trombone Synthesis by Coupling Dynamic Lip Valve and Instrument Models Tamara Smyth (tamaras@cs.sfu.ca) Frederick Scott (fss3@cs.sfu.ca) 8th Sound and Music Computing Conference (SMC), Thursday July 7 , 2011, Padova, Italy

  2. Outline • Trombone instrument model • Measuring bell reflection and transmission • Generalized pressure-controlled valve • Mouthpiece • Sound examples

  3. Trombone Instrument Model (no mouthpiece) Instrument Signal Reed Pulse F3nmp B3nmp + D3nmp F4nmp +

  4. Measurement System speaker microphone Cylinder, closed Cylinder, bell terminated 2 meters 7 cm

  5. Model of Measurement System signal at exterior mic Speaker output + signal at interior mic +

  6. Measured Impulse Responses (interior mic)

  7. Obtaining the Reflection Closed tube arrivals: Bell terminated tube arrivals: Take the ratio of second arrivals to obtain the bell reflection.

  8. Measured Impulse Response (exterior mic)

  9. Alternate Representation(convolutional synthesis) Blowing pressure Reed Model

  10. Lumping Round-Trip Loss in Transfer Function Denote round-trip losses from the mouthpiece to the bell and back again as The model transfer functions may be written as

  11. Generalized Pressure-Controlled Valve Swinging (vocal systems, lip reeds) Blown closed (woodwind) Blown open (vocal systems, lip reed)

  12. Generalized Pressure-Controlled Valve(trombone configuration) Parameters:

  13. Valve Area Functions

  14. Mouthpiece Constriction F3 Enclosed volume Bb3 Inertance Dissipative element Acoustic compliance

  15. Mouthpiece Model

  16. Valve Area Functions (with Mouthpiece)

More Related