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41. 发明专利

JPH0683337A ELECTRONIC MUSICAL INSTRUMENT 失效
公开(公告)号：JPH0683337A
公开(公告)日：1994-03-25
申请号：JP25579892
申请日：1992-08-31
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G09F27/00 , G10G1/00 , G10H1/00 , G10H1/24
摘要： PURPOSE:To display information that a user requires by displaying information regarding a timbre on a display means in display mode corresponding to the timbre. CONSTITUTION:There are two kind of display modes on a display 12 for a performance play mode; and one mode is a key play display mode and the other is a multi-display mode. The key display mode is suitable for a display of a performance set principally when the user plays on a keyboard 8. In this case, about 1-3 single timbres are combined and all are displayed, and information directly regarding the performance such as the setting states of various controllers are further displayed. The multi-display mode is suitable for a display of the performance set, for example, when the musical instrument is used as a multi sound source for an automatic performance. A display mode flag MDFLG is provided in the performance data.

42. 发明专利

JPH05323962A ELECTRONIC MUSICAL INSTRUMENT 失效
公开(公告)号：JPH05323962A
公开(公告)日：1993-12-07
申请号：JP14898792
申请日：1992-05-18
申请人： YAMAHA CORP
发明人： FUKADA AYUMI , NISHIMOTO TETSUO
IPC分类号： G10H1/00 , G10H1/053 , G10H1/12 , G10H1/18 , G10H1/24
摘要： PURPOSE:To perform variation control over plural parameters which relatively relate to each other like the 1st formant center frequency and 2nd formant center frequency, etc., of a formant at the same time with good reproducibility. CONSTITUTION:A position data generating means consists of a pointing device such as a touch panel 19 provided on the screen of the display device 18 of the electronic musical instrument and generates a specified position on the display screen as at least N-dimensional (N is integer larger than 2) position data. A data converting means inputs the N-dimensional position data and converts the data into plural parameter data regarding a musical sound. A musical sound synthesizing means 21 inputs the parameter data regarding the musical sound from the data converting means and synthesizes a musical sound signal determined corresponding to the parameter data.

43. 发明专利

JPH0559438B2 失效
公开(公告)号：JPH0559438B2
公开(公告)日：1993-08-31
申请号：JP11188582
申请日：1982-06-29
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/40 , G10F1/00

44. 发明专利

JPH05150780A MUSICAL SOUND SYNTHESIZING DEVICE 失效
公开(公告)号：JPH05150780A
公开(公告)日：1993-06-18
申请号：JP31503191
申请日：1991-11-28
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/12 , G10H7/08
摘要： PURPOSE:To provide the musical sound synthesizing device which express timbre like a fixed formant. CONSTITUTION:This musical sound synthesizing device is provided with a waveform memory 6 stored with the waveform data of plural cycles which have a waveform value '0' at the start point and end point of each cycle and are marked at the start point of each cycle, address generators 61a-61d which generate multi-layered phase data varying at a constant rate to values corresponding to the end point from a value corresponding to the start point of each cycle by giving mutual delay by a time corresponding to pitch to be sounded, reads waveform data of one cycle starting with the marked waveform data out of the waveform memory 6 in parallel according to phase data corresponding to the respective phases, and reads out the waveform data of a cycle following the cycle read yet in response to the supply of the phase data corresponding to the start point of the cycle, and an accumulator 75 which adds and outputs the waveform values of the respective read waveform data and outputs a waveform value of an amplitude '0' in a period wherein the waveform data are not read out.

45. 发明专利

JPH04284707A FLUCTUATING SIGNAL GENERATOR 失效
公开(公告)号：JPH04284707A
公开(公告)日：1992-10-09
申请号：JP7218991
申请日：1991-03-13
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/043 , G06F7/58 , G10H1/053 , G10H7/08 , H03B29/00 , H03K3/84
摘要： PURPOSE:To eliminate unnaturality of control due to a fluctuating signal by exerting a tendency of a centrifugal correction through the production of the fluctuating signal by the correlation noise system thereby preventing the occurrence of production in a way that the fluctuating signal is resident in either of positive and negative amplitude regions. CONSTITUTION:A white noise generator 1 is used as a noise signal generating source generating a prescribed noise signal, a fluctuating signal reference allowable range is designated by a coefficient CF1 generated by a coefficient generating section 2, and an arithmetic section 3 changes a preceding sample of the fluctuating signal within a change allowable range designated by the coefficient CF1 according to the white noise signal at random to correct the upper limit and the lower limit of the range so that the deviation is reduced. In order to correct the upper limit, a delay circuit 4, adders 5, 6, subtractors 7, 8 and a multiplier 9 are used and in order to correct the lower limit, multipliers 11, 12, a subtractor 13 and an adder 14 are used. Thus, a remarkable deviation from the reference value is avoided by using the fluctuation signal to control the pitch and the amplitude of a music tone.

46. 发明专利

JPH04277796A ELECTRONIC MUSICAL INSTRUMENT 失效
公开(公告)号：JPH04277796A
公开(公告)日：1992-10-02
申请号：JP4000791
申请日：1991-03-06
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/24 , G10H1/18 , G10H7/00
摘要： PURPOSE:To facilitate the editing of a musical sound by storing plural parameters for generating a musical sound in plural groups and selecting and displaying plural groups of parameters. CONSTITUTION:A voice memory is stored with the parameters required to generate a musical sound signal and one plural kinds of timbre stored in the voice memory is selected with a voice select switch 2. One of six operators constituting one kind of timbre is selected with a parameter select switch 3. One of plural parameter groups determining the characteristics of the operator is specified with a parameter select switch 4 and classified by parameters which are relative in amplitude, pitch, etc. Then a display changeover switch 5 is used for switching between a selective display of one of the classified parameter groups and a simultaneous display of plural groups on a display unit 1.

47. 发明专利

JPH04190393A ELECTRONIC INSTRUMENT 失效
公开(公告)号：JPH04190393A
公开(公告)日：1992-07-08
申请号：JP32384590
申请日：1990-11-26
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/053
摘要： PURPOSE:To facilitate the musical performance and the number of control elements by providing a means for selecting a parameter changing means for changing a predetermined musical note parameter in accordance with an output from a pitch bend control element or a pitch control means. CONSTITUTION:There is provided a midpoint return type pitch bend control element 20 which may be of any one of a wheel type, a lever type and a joy- stick type and delivers data in accordance with a performed value thereof. The output data may be used either for operation for changing a music note parameter or for operation for adjusting the musical note pitches. A change-over means 21 selects either one of the operations. With this arrangement, it is possible to reduce the number of control elements and to efficiently set a parameter with the use of the control element 20.

48. 发明专利

JPH0481799A ELECTRONIC MUSICAL INSTRUMENT 失效
公开(公告)号：JPH0481799A
公开(公告)日：1992-03-16
申请号：JP19709190
申请日：1990-07-24
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO
IPC分类号： G10H1/053 , G10H1/043
摘要： PURPOSE:To generate natural fluctuations by adding input data which is delayed by a delay circuit and input data which is not delayed together and generating fluctuation information. CONSTITUTION:A noise generator 11 generates random noises in synchronism with a clock phis and supplies them to an input terminal 1 of a selector 21. The selector 21 selects and outputs alternate data supplied to the input terminals 1 and 0 at intervals of one cycle of a clock phi whose period is a half as long as that of the phis. Then noise data that the selector 21 selects are supplied to one input of an adder 22 and also inputted to delay circuits 23 and 24 and they are delayed by one cycle of the clock phi and supplied to the other input of the adder 22. Therefore, noises with a flat spectrum become a spectrum which smoothly decreases corresponding to an increase in frequency. Consequently, natural fluctuations are obtained by the simple structure.

49. 发明专利

JPH03200300A VOICE SYNTHESIZER 失效
公开(公告)号：JPH03200300A
公开(公告)日：1991-09-02
申请号：JP34321389
申请日：1989-12-28
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO , KOYAMA MASAHIRO
IPC分类号： G10L13/00
摘要： PURPOSE:To synthesize a voice which is rich is natural feeling like a human voice by setting the formant frequencies of a voiceless and voiced sound signals to the same or nearly the same frequency and controlling each formant frequency according to common frequency control information. CONSTITUTION:In respective cases of the formant synthesis of the voiceless and voiced sound signals the formant center frequencies are set to the same or nearly the same frequency and the formant frequencies of the voiceless and voiced sound signals are controlled according to common frequency control information. Consequently, the formant frequency of the voiceless sound signal follows up the formant frequency of the voiced sound signal. The voiced sound signal and voiceless sound signal are therefore given exactly the same acoustic effect to generate a voice signal. Consequently, the voice which contains an anharmonic component like an actual human voice can be synthesized.

50. 发明专利

JPH0344699A MUSICAL SOUND SIGNAL SYNTHESIS SYSTEM 失效
公开(公告)号：JPH0344699A
公开(公告)日：1991-02-26
申请号：JP17897989
申请日：1989-07-13
申请人： YAMAHA CORP
发明人： NISHIMOTO TETSUO , KOYAMA MASAHIRO
IPC分类号： G10H7/00 , G10H7/02 , G10H7/08
摘要： PURPOSE:To enable complicate variable control over a musical sound waveform corresponding to an exponential function by synthesizing a musical sound signal according to the execution result of specific arithmetic algorithm. CONSTITUTION:A waveform generating means 2 outputs a wave form function f(omegat) according to phase information omegat which is outputted by a phase information generating means 1 and varies repeatedly. This function is raised by a power means 3 according to an exponent (k) from an exponent function specifying means 4 to calculate and determine an exponential function [f(omegat)] by specific arithmetic algorithm execution, thereby synthesizing the musical sound waveform. Then the exponent (k) varies according to omegat applied to the means 4 and a synthesized musical sound waveform corresponding to the exponential function is varied and controlled complicatedly.

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