Musical performance-related information output device, system including musical performance-related information output device, and electronic musical instrument
First Claim
1. A musical performance-related information output device comprising:
- a musical performance-related information acquiring section configured to acquire musical performance-related information related to a musical performance of a performer;
a superimposing section configured to superimpose the musical performance-related information on an analog audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band higher than a frequency component of the analog audio signal; and
an output section that outputs the analog audio signal on which the superimposing section superimposes the musical performance-related information.
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Abstract
Provided are a musical performance-related information output device and a musical performance system capable of superimposing musical performance-related information on an audio signal without damaging the general versatility of the audio signal. The musical performance-related information output device includes a musical performance-related information acquiring section that is adapted to acquire musical performance-related information related to a musical performance of a performer, a superimposing section that is adapted to superimpose the musical performance-related information on an analog audio signal such that a modulated component of the musical performance-related information is included in a band higher than the frequency component of the analog audio signal generated in accordance with the musical performance manipulation of the performer, and an output section that outputs the analog audio signal on which the superimposing section superimposes the musical performance-related information.
82 Citations
39 Claims
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1. A musical performance-related information output device comprising:
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a musical performance-related information acquiring section configured to acquire musical performance-related information related to a musical performance of a performer; a superimposing section configured to superimpose the musical performance-related information on an analog audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band higher than a frequency component of the analog audio signal; and an output section that outputs the analog audio signal on which the superimposing section superimposes the musical performance-related information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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11. A musical performance system comprising:
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a musical performance-related information output device; and a reproducing device, wherein the musical performance-related information output device includes; a musical performance-related information acquiring section configured to acquire musical performance-related information related to a musical performance of a performer; a superimposing section configured to superimpose the musical performance-related information on an analog audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band higher than a frequency component of the analog audio signal; and an output section that outputs the analog audio signal on which the superimposing section superimposes the musical performance-related information, and wherein the reproducing device includes; an input section for inputting the analog audio signal output from the output section of the musical performance-related information output device; a decoding section configured to extract the musical performance-related information from the analog audio signal input to the input section and decode the musical performance-related information; and a synchronous output section that synchronously outputs the analog audio signal and the musical performance information on the basis of the time required for superimposition and decoding of the musical performance information.
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12. A sound processing system comprising:
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a musical performance-related information output device; and a decoding device configured to decode the tempo information, wherein the musical performance-related information output device includes; a musical performance-related information acquiring section configured to acquire musical performance-related information related to a musical performance of a performer; a superimposing section configured to superimpose the musical performance-related information on an analog audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band higher than a frequency component of the analog audio signal; and an output section that outputs the analog audio signal on which the superimposing section superimposes the musical performance-related information, wherein the musical performance-related information acquiring section acquires tempo information indicating a musical performance tempo as the musical performance-related information, wherein the superimposing section of the musical performance-related information output device superimposes pseudo noise on the analog audio signal with a timing based on the musical performance tempo to superimpose the tempo information, and wherein the decoding device includes; an input section for inputting the analog audio signal; and a decoding section configured to calculate a correlation between the analog audio signal input to the input section and the pseudo noise, and to decode the tempo information on the basis of a peak-generated timing of the correlation. - View Dependent Claims (13, 14)
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26. A method of outputting musical performance-related information using a musical performance-related information output device, the method comprising:
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a musical performance-related information acquiring step of acquiring musical performance-related information related to a musical performance of a performer; a superimposing step of superimposing the musical performance-related information on an analog audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band higher than a frequency component of the analog audio signal; and an output step of outputting the analog audio signal on which the superimposing section superimposes the musical performance-related information.
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27. A musical performance-related information output device comprising:
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a musical performance-related information acquiring section configured to acquire musical performance-related information related to a musical performance of a performer; a superimposing section configured to superimpose the musical performance-related information on an audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band; and an output section configured to output the audio signal on which the superimposing section superimposes the musical performance-related information, wherein the superimposing section includes; a spread code generating section configured to generate a spread code having a predetermined period; a modulating section configured to phase-modulate the spread code in each period based on the musical performance information; and an adding section configured to mix the phase-modulated spread code into the audio signal. - View Dependent Claims (28, 29)
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30. An audio reproducing device comprising:
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an acquiring section configured to acquire an audio signal on which musical performance information is superimposed; a decoding section configured to extract and decode the musical performance information from the audio signal; and a synchronous output section configured to output the audio signal synchronously with the musical performance information on the basis of a time required for superimposition and decoding of the musical performance information. - View Dependent Claims (31, 32)
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33. An audio decoding device comprising:
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an acquiring section configured to acquire an audio signal on which musical performance-related information is superimposed; a decoding section configured to calculate a correlation between the audio signal and a spread code, and to decode as data code the musical performance-related information from the audio signal; and an outputting section configured to output the decoded musical performance-related information. - View Dependent Claims (34, 35, 36, 37)
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38. A method of controlling a musical performance-related information output device, the method comprising:
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an acquiring step of acquiring musical performance-related information related to a musical performance of a performer; a superimposing step of superimposing the musical performance-related information on an audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band; and an outputting step of outputting the audio signal on which the musical performance-related information is superimposed, wherein the superimposing step comprises; a generating step of generating a spread code having a predetermined period; a phase-modulating step of phase-modulating the spread code in each period based on the musical performance information; and a mixing step of mixing the phase-modulated spread code into the audio signal.
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39. A non-transitory computer-readable storage medium storing a program executable by a computer to execute a method of controlling a musical performance-related information output device, the method comprising:
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an acquiring step of acquiring musical performance-related information related to a musical performance of a performer; a superimposing step of superimposing the musical performance-related information on an audio signal generated in accordance with a musical performance manipulation of the performer so that a modulated component of the musical performance-related information is included in a band; and an outputting step of outputting the audio signal on which the musical performance-related information is superimposed, wherein the superimposing step comprises; a generating step of generating a spread code having a predetermined period; a phase-modulating step of phase-modulating the spread code in each period based on the musical performance information; and a mixing step of mixing the phase-modulated spread code into the audio signal.
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Specification