Abstract An electrical pickup is secured to the output of a musical instrument, such as the bell end of a horn. The signal is amplified. The output of the amplifier is applied through a feedback loop to the input of the musical instrument, such as the mouthpiece of the horn. The feedback loop includes a small speaker. In one form of the invention, the speaker is mounted at the mouthpiece of the horn so that its output fortifies the input acoustic energy developed at the mouthpiece by the instrument player. In another form of the invention, the speaker consists of an earphone worn by or held against the ear of the instrument player. In this case the instrument player himself modifies his playing mode in accordance with what he hears in the earphone. Thus the player himself is involved in the feedback loop.
Feedback loop for a musical instrument comprising: a musical instrument having input means at which there is developed acoustic energy of musical frequencies, and output means from which acoustic energy is delivered; pickup means located at said output means for transducing said acoustic energy into corresponding electric signals; amplifier means for amplifying signals from said pickup means; and feedback means including speaker means located at said input means and connected to said amplifier means for linking the output of said amplifier means to said input means.
Claim 2
Dependent Claim
86 words
Feedback loop for a musical instrument comprising: a musical instrument having input means at which there is developed acoustic energy of musical frequencies, and output means from which acoustic energy is delivered; pickup means located at said output means for transducing said acoustic energy into corresponding electric signals; amplifier means for amplifying signals from said pickup means; and feedback means including speaker means located at said input means and connected to said amplifier means for linking the output of said amplifier means to said input means.