ELECTRONIC MUSICAL INSTRUMENT HAVING TUNING DEVICE

Abstract

An electronic musical instrument includes a tuning device, a keyboard, a tone generator, a microphone, a measurement unit, and a display attached to the backside of the housing. The tone generator generates a plurality of reference tones in response to the operation of the keyboard, while the microphone receives a plurality of musical tones, which are generated by at least one musical instrument subjected to tuning. Different tone colors can be applied to the reference tones. The measurement unit measures a plurality of pitch differences between the reference tones and the musical tones subjected to tuning, so that the display displays the pitch differences in comparison with each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other objects, aspects, and embodiments of the present invention will be described in more detail with reference to the following drawings, in which:

FIG. 1A is a plan view showing the exterior appearance of an electronic musical instrument having a tuning device in accordance with a preferred embodiment of the present invention;

FIG. 1B is a rear view showing a backside of a housing of the electronic musical instrument;

FIG. 2 is a block diagram showing the electronic configuration of the electronic musical instrument;

FIG. 3 is a block diagram showing processes executed by a CPU in a tuning mode of the electronic musical instrument;

FIG. 4 is a state transition diagram showing the overall operation of a reference tone setup process shown in FIG. 3;

FIG. 5A is a time chart in which three keys are sequentially depressed by releasing fingers;

FIG. 5B is a time chart in which three keys are sequentially depressed without releasing fingers;

FIG. 6 is a perspective view showing a first variation of the electronic musical instrument; and

FIG. 7 is a perspective view showing a second variation of the electronic musical instrument.

Claims

1. An electronic musical instrument having a tuning device, comprising: a keyboard having a plurality of keys for designating a plurality of reference tones;a tone generator for generating the plurality of reference tones, which are designated by operating the keyboard;a microphone for collecting at least one sound, which is generated in an external space;a measurement unit for measuring a pitch difference between the sound and the reference tone; anda display, which is arranged in a backside of a housing so as to display the pitch difference measured by the measurement unit.

2. The electronic musical instrument having a tuning device according to claim 1, wherein the display is detachably attached to the backside of the housing in a freely rotatable manner.

3. The electronic musical instrument having a tuning device according to claim 1, wherein the measurement unit measures a plurality of pitch differences between the plurality of reference tones and a plurality of musical tones, which are collected by the microphone, so that the display displays the plurality of pitch differences in comparison with each other.

4. The electronic musical instrument having a tuning device according to claim 1, further comprising a plurality of tone color switches for designating a plurality of tone colors with respect to a plurality of musical tones subjected to tuning, wherein the plurality of musical tones are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.

5. The electronic musical instrument having a tuning device according to claim 1, further comprising a plurality of tone color switches for designating a plurality of tone colors with respect to a plurality of musical tones subjected to tuning, wherein the tone generator generates the plurality of reference tones having the plurality of tone colors with respect to the plurality of musical tones, which are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.

6. The electronic musical instrument having a tuning device according to claim 1, further comprising a plurality of tone color switches for designating a plurality of tone colors in advance, wherein the tone generator sequentially generates the plurality of reference tones having the plurality of tone colors, which are sequentially selected, with respect to a plurality of musical tones subjected to tuning, and wherein the plurality of musical tones are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.

7. The electronic musical instrument having a tuning device according to claim 2, wherein the measurement unit measures a plurality of pitch differences between the plurality of reference tones and a plurality of musical tones, which are collected by the microphone, so that the display displays the plurality of pitch differences in comparison with each other.

8. The electronic musical instrument having a tuning device according to claim 2, further comprising a plurality of tone color switches for designating a plurality of tone colors with respect to a plurality of musical tones subjected to tuning, wherein the plurality of musical tones are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.

9. The electronic musical instrument having a tuning device according to claim 2, further comprising a plurality of tone color switches for designating a plurality of tone colors with respect to a plurality of musical tones subjected to tuning, wherein the tone generator generates the plurality of reference tones having the plurality of tone colors with respect to the plurality of musical tones, which are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.

10. The electronic musical instrument having a tuning device according to claim 2, further comprising a plurality of tone color switches for designating a plurality of tone colors in advance, wherein the tone generator sequentially generates the plurality of reference tones having the plurality of tone colors, which are sequentially selected, with respect to a plurality of musical tones subjected to tuning, and wherein the plurality of musical tones are received by the microphone and are extracted by the measurement unit in correspondence with the plurality of tone colors, so that the measurement unit measures a plurality of pitch differences between the plurality of reference tones and the plurality of musical tones, whereby the display displays the plurality of pitch differences in comparison with each other.