Brass instrument type tone synthesizer

A tone synthesizer comprising:

• breath pressure detection means for detecting a breath pressure;
• pressing force detection means for detecting a pressing force;
• loop circuit means having a delay for synthesizing a tone signal, the loop circuit controlling the synthesis of the tone signal in accordance with the detected breath pressure and pressing force;
• frequency control means for increasing a frequency of the tone signal to be synthesized in accordance with said detected pressing force;
• random component addition means for adding a random number component to said frequency of said tone signal;
• and
• random number control means for increasing said random number component in accordance with said detected breath pressure.

A tone synthesizer comprising:

• a performance manipulator for use by a player in applying a breath pressure of said player and a pressing force with a lip of said player;
• breath pressure detection means for detecting said breath pressure;
• pressing force detection means for detecting said pressing force;
• first resonance means for receiving an input signal and generating a first resonance signal having a resonant frequency corresponding to a pitch of a musical tone which changes in accordance with said detected breath pressure and said detected pressing force;
• and
• delay means for delaying said first resonance signal and for feeding said delayed first resonance signal back to said first resonance means as said input signal.

A tone signal synthesizer comprising:

• loop circuit means for circulating a signal, said loop circuit means including at least one of delay means for delaying said signal and multiplying means for multiplying said signal by a predetermined value;
• pressure difference means for receiving a breath pressure signal and a loop pressure signal and for outputting a difference signal corresponding to a difference between said breath pressure signal and said loop pressure signal;
• resonance means including a first and a second circuit, said first circuit including absolute value means for generating an absolute value signal indicative of an absolute value of said difference signal, combining means for combining the difference signal and the absolute value signal and producing a combined difference signal, and non-linear circuit means for processing the combined difference signal in accordance with a non-linear function to produce a first signal, said second circuit generating a second signal which becomes larger as the value of said difference signal becomes larger;
• and
• transmission means for generating a transmission signal based on said first and second signals, said transmission signal being provided to said loop circuit means for circulation therein.