The Feathered Clarinet Reed
نویسندگان
چکیده
In this research, a method previously applied to improve a digital simulation of the avian syrinx is adapted to the geometry of the clarinet reed. The clarinet model is studied with particular attention to the case when the reed beats again the lay of the mouthpiece, closing off air flow to the bore once each period. In place of the standard reed table which gives steady-state volume flow as a function of constant pressure difference across the reed, a more realistic dynamic volume flow model is proposed. The differential equation governing volume flow dynamics is seen to have a singularity at the point of reed closure, where both the volume flow and reed channel area become zero. The feathered clarinet reed refers to the method, first used in the syrinx, to smooth or feather the volume flow cutoff in a closing valve. The feathered valve eliminates the singularity and reduces artifacts in the simulated clarinet output.
منابع مشابه
Estimating the Reed Pulse from Clarinet Recordings
In this work we estimate the volume flow pulses through a clarinet reed from recorded clarinet signal. The idea is similar to extracting glottal pulse sequences from recorded speech, however since the clarinet reed has little mass and generates significant reflection, the source-filter model used in speech processing invalid. Here, the clarinet is modeled as a pressure-controlled valve coupled ...
متن کاملSimulation of a player-clarinet system
A time-domain simulation model has been developed for investigating the player-clarinet system. The three components that constitute the simulation model consist of the player's air column, reed, and the clarinet. The player's air column is represented in terms of an analogous circuit model to obtain the mouth pressure. The reed is represented as a damped, driven, nonuniform bar. The clarinet i...
متن کاملFunctional model of a simplified clarinet
A functional model of a simplified clarinet has been developed and implemented on a digital computer. The simplified clarinet consists of a standard clarinet mouthpiece and reed attached to a straight cylindrical tube. In the model, the tube and mouthpiece are represented by a lumped element approximation to a transmission line and the reed is represented as a nonuniform bar, clamped at one end...
متن کاملHow players use their vocal tracts in advanced clarinet and saxophone performance
How and when is the player’s vocal tract important in clarinet and saxophone performance? In a simple model, the acoustical impedances of the instrument (a resonator downstream from the reed) and the player’s tract (an upstream resonator) appear in series and in their sum is in parallel with that of the reed. Using impedance heads built into functioning mouthpieces, we made measurements of the ...
متن کاملToward an estimation of the clarinet reed pulse from instrument performance.
In this work, a technique is presented for estimating the reed pulse from the pressure signal recorded at the bell of a clarinet during performance. The reed pulse is a term given to the typically periodic sequence of bore input pressure pulses, a signal related to the volume flow through a vibrating reed by the characteristic impedance of the aperture to the bore. The problem is similar to ext...
متن کامل