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233 条记录 (耗时 0.015 秒)

    Music tone pitch shift apparatus
    31.
    发明授权
    Music tone pitch shift apparatus 失效
    MUSIC TONE PITCH SHIFT APPARATUS

    公开(公告)号：US5131042A

    公开(公告)日：1992-07-14

    申请号：US496640

    申请日：1990-03-21

    申请人： Mikio Oda

    发明人： Mikio Oda

    IPC分类号： G10K15/04 ,  G10H1/20 ,  G10H7/00 ,  G10L21/04 ,  G11B20/02

    CPC分类号： G10H1/20 ,  G10H7/008 ,  G10H2250/631

    摘要： A music tone pitch shift apparatus which converts an original audio signal into digital data by way of pulse code modulation (PCM), shifting the pitch, and converting the pitch shifted digital data into an analog signal. The PCM digital data is stored in a ring memory at a given sampling speed, and is read out of the memory by a pair of identical read circuits at a common read addressing speed corresponding to the desired pitch. One of the read circuits starts reading from the opposite address location to the other on the ring memory. Since the read addressing speed is set faster than the write addressing speed when increasing the pitch, and vice versa, overtaking or lapping between the addresses could occur. In switching alternately the read circuits from a now-outputting side to a switching-to side, the read address on the switching-to side circuit is stopped increasing at an address location where a zero-amplitude data has been read, until a zero-amplitude data in phase with that which the switching-to side circuit has read is read by the now-outputting side circuit and the switching is made, immediately before the overtaking or lapping occurs on the now-outputting side circuit. Thus, a smooth connection of the pitch shifted audio signals can be made without including such amplitude modulated components as in the cross fade method, and therefore, a high-quality music tone pitch shift operation can be realized.

    Digital signal processor for providing timbral change in arbitrary audio and dynamically controlled stored digital audio signals
    32.
    发明授权
    Digital signal processor for providing timbral change in arbitrary audio and dynamically controlled stored digital audio signals 失效
    数字信号处理器，用于提供任意音频和动态控制存储的数字音频信号的时变

    公开(公告)号：US4991218A

    公开(公告)日：1991-02-05

    申请号：US398238

    申请日：1989-08-24

    申请人： Gregory Kramer

    发明人： Gregory Kramer

    IPC分类号： G10H1/00 ,  G10H1/16 ,  G10H5/00 ,  G10H7/00 ,  G10H7/02

    CPC分类号： G10H1/0091 ,  G10H1/16 ,  G10H5/005 ,  G10H7/008 ,  G10H7/02 ,  G10H2210/281 ,  G10H2250/191

    摘要： A digital audio signal processing technique in which the harmonic content of the output signal varies with the amplitude of an input signal. The preferred embodiment includes an analog to digital converter with sample and hold, a digital signal memory with playback control apparatus, timing circuits, a RAM look-up table to perform non-linear transformation and finally a digital to analog converter. The input signal, which can be an arbitrary audio signal or a digital signal representative of such a signal, is modified by a non-linear transformation means and outputted for reproduction in audible form or stored for subsequent processing.

    摘要翻译： 一种数字音频信号处理技术，其中输出信号的谐波含量随着输入信号的幅度而变化。 优选实施例包括具有采样和保持的模数转换器，具有回放控制装置的数字信号存储器，定时电路，用于执行非线性变换的RAM查找表，以及最后一个数模转换器。 作为代表这种信号的任意音频信号或数字信号的输入信号由非线性变换装置修改，并以可听形式输出或存储用于后续处理。

    Electronic musical instrument
    33.
    发明授权
    Electronic musical instrument 失效
    电子乐器

    公开(公告)号：US4909120A

    公开(公告)日：1990-03-20

    申请号：US239190

    申请日：1988-08-31

    申请人： Masamichi Horiki ,  Tsutomu Saito

    发明人： Masamichi Horiki ,  Tsutomu Saito

    IPC分类号： G10H1/057 ,  G10H1/18 ,  G10H7/00

    CPC分类号： G10H1/181 ,  G10H7/008

    摘要： Truncate processing is performed so that a new tone is not generated before the envelope waveform is finished but the new tone is produced after the volume of the previous tone is sufficiently diminished, by which the new tone can be produced with a satisfactory feeling of attack. Further, the envelope waveform is not abruptly interrupted and cleared in a moment but is decayed at a constant and high speed, thereby preventing the generation of noise such as a click. Moreover, demanded speed data is provided for each tone, by which it is possible to produce repective tones not at a demanded speed like the least common multiple but at an optimum speed for each tone and to make the previous tone generation proceed to the next tone generation without producing noise such as a click.

    摘要翻译： 执行截断处理，使得在包络波形完成之前不产生新的音调，但是在前一音调的音量被充分减小之后产生新的音调，由此可以以令人满意的感觉来产生新的音调。 此外，包络波形不会突然中断并暂时清除，而是以恒定和高速衰减，从而防止诸如咔嗒声等噪声​​的产生。 此外，为每个音调提供要求的速度数据，通过该速度数据可以产生不按照最小公倍数的要求速度，但是对于每个音调以最佳速度产生视听音，并且使先前音调生成进行到下一个音调 不产生噪音，如点击。

    Electronic musical instrument
    34.
    发明授权
    Electronic musical instrument 失效
    电子乐器

    公开(公告)号：US4901615A

    公开(公告)日：1990-02-20

    申请号：US366245

    申请日：1989-06-12

    申请人： Tadashi Matsushima ,  Tatsunori Kondo

    发明人： Tadashi Matsushima ,  Tatsunori Kondo

    IPC分类号： G10H7/02 ,  G10H7/00

    CPC分类号： G10H7/008

    摘要： A double buffer system of a small storage capacity is employed for reducing the noise generation in musical waveforms. The operations of the buffers are utilized for performing an interpolation between waveforms and between successive sample points of each waveform, whereby the number of sample points of the waveform being read out is increased to smooth its level variation, producing a good quality musical tone as if it were obtained by quantizing the synthesized musical waveform.

    摘要翻译： 采用小存储容量的双缓冲系统来减少音乐波形中的噪声产生。 缓冲器的操作用于在波形之间和每个波形的连续采样点之间进行插值，从而增加正在读出的波形的采样点的数量以平滑其电平变化，产生好的质量音调，好像 通过量化合成的音乐波形获得。

    Tone waveshape forming device
    35.
    发明授权
    Tone waveshape forming device 失效
    音波形成装置

    公开(公告)号：US4635520A

    公开(公告)日：1987-01-13

    申请号：US634626

    申请日：1984-07-26

    申请人： Katoh Mitsumi

    发明人： Katoh Mitsumi

    IPC分类号： G10H7/02 ,  G10H7/00 ,  G10H1/02 ,  G10H1/00

    CPC分类号： G10H7/008

    摘要： Two waveshapes corresponding to an attack portion and a part of portion succeeding the attack portion of a tone to be produced are stored in a waveshape memory. The waveshape of the attack portion is read out once and thereafter the other waveshape is repetitively read out. In order to connect smoothly the repetitively read out waveshape, an interpolation operation is performed in specified sections at the end and at the beginning of the waveshape. A tone waveshape to be finally formed is constituted by the other waveshape itself in other section than the specified sections and by a new waveshape formed by the interpolation operation in the specified sections in the other waveshape, thereby realizing the smooth connection of the repetitive read out waveshapes.

    摘要翻译： 对应于要产生的音调的攻击部分的攻击部分和部分部分的两个波形形状被存储在波形存储器中。 读出一次攻击部分的波形，​​然后重复读出其他波形。 为了顺利连接重复读出的波形，在波形的结束和开始时，在指定的部分进行插值运算。 要最终形成的音色波形由其他部分的波形本身构成，而在另一个波形中由指定部分中的插值运算形成的新波形构成，从而实现重复读出的平滑连接 波形

    MUSIC GENERATOR
    37.
    发明申请
    MUSIC GENERATOR 审中-公开

    公开(公告)号：US20190042183A1

    公开(公告)日：2019-02-07

    申请号：US16154312

    申请日：2018-10-08

    申请人： Be Labs, LLC

    发明人： Edward Balassanian

    IPC分类号： G06F3/16 ,  G10H7/00 ,  G06F17/30 ,  G10H1/00

    CPC分类号： G06F3/165 ,  G06F16/61 ,  G06F16/632 ,  G06F16/683 ,  G10H1/0025 ,  G10H7/008 ,  G10H2240/085 ,  G10H2240/131

    摘要： Techniques are disclosed relating to generating music content. In one embodiment, a method includes determining one or more musical attributes based on external data and generating music content based on the one or more musical attributes. Generating the music content may include selecting from stored sound loops or tracks and/or generating new tracks based on the musical attributes. Selected or generated sound loops or tracks may be layered to generate the music content. Musical attributes may be determined in some embodiments based on user input (e.g., indicating a desired energy level), environment information, and/or user behavior information. Artists may upload tracks, in some embodiments, and be compensated based on usage of their tracks in generating music content. In some embodiments, a method includes generating sound and/or light control information based on the musical attributes.

    ELECTRONIC MUSICAL INSTRUMENT, MUSICAL SOUND GENERATING METHOD, AND STORAGE MEDIUM
    38.
    发明申请
    ELECTRONIC MUSICAL INSTRUMENT, MUSICAL SOUND GENERATING METHOD, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20180261198A1

    公开(公告)日：2018-09-13

    申请号：US15913640

    申请日：2018-03-06

    申请人： CASIO COMPUTER CO., LTD.

    发明人： Yoshinori TAJIKA

    IPC分类号： G10H7/00 ,  G10H1/00 ,  G10H1/34

    CPC分类号： G10H7/008 ,  G10H1/0008 ,  G10H1/0091 ,  G10H1/053 ,  G10H1/344 ,  G10H2210/095 ,  G10H2210/221 ,  G10H2210/325 ,  G10H2220/221 ,  G10H2240/161

    摘要： An electronic musical instrument includes a plurality of keys respectively specifying different pitches when operated; a memory; and a sound processor. In response to a current operation of a current key, which is one of the plurality of keys, the sound processor retrieves the information stored in the memory for a previous operation, if any, of a previous key, which is a same as the current key or is another one of the plurality of keys, and performs a prescribed processing on a beginning part of the waveform data generated for the current operation of the current key in accordance with the retrieved information stored in the memory for the previous operation of the previous key so as to generate processed waveform data in response to the current operation of the current key. The resulting processed waveform data can be configured to better mimic artists' performance of an original instrument.