The Magnitude of the Frequency Jitter of Acoustic Waves Generated by Wind Instruments Is of Relevance for the Live Performance of Music

It is shown that a gold-plated device mounted on tenor saxophone, forming small bridge between the mouthpiece and S-bow, can change two characteristics of radiated sound: (1) acoustic energy harmonics with emission maxima around 1500–3000 Hz, which slightly reduced for tones played in lower register saxophone; (2) frequency jitter all regular upper saxophone show two-fold increase. Through simulated phase-shifted superimpositions recorded waves, it cancellation due to antiphase superimposition significantly recordings bridge. Simulations artificially generated waves confirm certain systematic less cancelling under superimposition, compared no jitter; thus, being beneficial live performances halls minimal optimization. The data further indicate occasionally hearable “rumble” wind instrument orchestra instruments showing slight differences might be (or avoided), if have magnitude.