Music – Instruments
Patent
1982-09-27
1984-10-02
Isen, Forester W.
Music
Instruments
84470R, 84DIG12, 84 127, G10F 100
Patent
active
044740980
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a new and improved construction of a signal emitting device with adjustable beat frequency comprising an input unit for the introduction of a sequence of time values of musical notes or pauses which define at least one measure, a memory unit for storing the introduced sequence and a circuit for repeatedly producing control signals representing the introduced sequence as a function of the selected beat frequency.
Such devices can be used as metronome. After the introduction of the selected sequence of time values of musical notes and pauses, which is easily possible also for a beginner, the corresponding rhythm is reproduced with the selected beat frequency. The beat frequency can initially be set low for training and can later be set at a higher value without changing the structure of the introduced musical measure.
Such known devices are a better help in learning a musical composition than the usual metronomes with acoustic or visual output because the while the person being trained is able to understand the rhythm of the difficult passages, the succession of the tones of a melody cannot be reproduced because the acoustic signals are uniform.
There are some cases in which it is desired to have, at least temporarily, in addition to the mere rhythm, the reproduction of the succession of tones of a musical composition, e.g. in singing lessons, since beginners are often not sure of the pitch of each tone.
BRIEF SUMMARY OF THE INVENTION
In accordance with the foregoing, it is a general object of the present invention to provide an improved construction of a signal emitting device with adjustable beat frequency which is suited to reproduce not only the rhythm but also the melody of a musical composition.
Another object of the invention is to provide a new and improved signal emitting device which is extremely easy to operate so that the user does not require a deep musical knowledge.
Finally, it is an object of the invention to provide a device which is suited for children as a mere beat emitting device or as a melody box.
Now, in order to implement these and still further objects of the invention, which will become more readily apparent as the description proceeds, the device comprises a keyboard for introducing pitch value information after the introduction of respective time value information, the introduced pitch value information being stored in a memory together with the introduced time value information, a circuit for producing pitch value control signals together with the time value control signals of the introduced sequency and a selectively operable audio frequency generator, which is influenced by both the time value control signals and the pitch value control signals.
According to a further embodiment of the invention the device can be constructed in such a way that a visual display is also provided which has several discrete optical elements having at least two different possible states and which change their state to reproduce the time values of the notes and/or the pauses and to make possible a simultaneous visual representation of the introduced sequence, which helps in the understanding of this sequence.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof which makes reference to the annexed drawings, wherein:
FIG. 1 is a representation of the front panel of an embodiment of a signal emitting device according to the present invention, showing the most important actuating elements thereof;
FIG. 2 is a representation of a second embodiment of the display visual of the device of FIG. 1;
FIG. 3 is a block diagram of an embodiment of the circuit of the invention; and
FIG. 4 is a schematic representation of a white noise pulse which is generated by the signal emitting device of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Describing now the embodiments of the
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patent: 4297934 (1981-11-01), Imamura et al.
patent: 4368989 (1983-01-01), Kawashima
patent: 4388000 (1983-06-01), Hagihira
Jungo Charles
Pepersack Walter
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