METHOD OF ADJUSTING A SPEAKER OF AN ELECTRICAL SOU

专利名称：METHOD OF ADJUSTING A SPEAKER OF AN

ELECTRICAL SOUND PRODUCINGINSTRUMENT

发明人：MARTEN I. NEFF申请号：US3670841D申请日：19700515公开号：US3670841A公开日：19720620

摘要：A method of adjusting a speaker of an electrical musical instrument to a room inwhich music is to be played on the instrument through a loudspeaker. A note is soundedthrough at least one speaker of the instrument, the note having a single fundamentalfrequency and harmonics including audible high harmonics above the fundamentalfrequency. The note is monitored as by ear at the speaker to detect the relative volumesof the fundamental frequency and the highest audible harmonic frequency. Whilecontinuing to monitor, the speaker is moved close to and relative to a wall of the roomuntil a particular position of the speaker is detected where the volume of the highestaudible harmonic relative to that of the fundamental frequency is greater than atsurrounding positions. The speaker is fixed at that particular position. Preferably, thesame monitoring step is continued while moving a reflector outside and relative to thespeaker until a particular position for the reflector is detected where the relative volumeat the reflector of the highest audible harmonic is greatest, and the reflector is fixed atthat position. Other reflectors may be positioned in the same manner. As a result of thetuning, music played on the instrument has two desirable characteristics: (1) it envelops

the listener to the point where the location of the speaker is less noticeable, and (2) ithas tonal qualities characteristic, for example, of a good pipe organ; i.e. fullness,roundness, solidity and spread.

申请人：MARTEN I. NEFF

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