公开(公告)号：US5212676A

公开(公告)日：1993-05-18

申请号：US650872

申请日：1991-02-05

申请人： Toshio Yamabata ,  Satoshi Otsuka ,  Mitsuhiro Umeta ,  Fumio Rokkaku ,  Takenori Yamamori ,  Minoru Fujisawa ,  Koji Hara

发明人： Toshio Yamabata ,  Satoshi Otsuka ,  Mitsuhiro Umeta ,  Fumio Rokkaku ,  Takenori Yamamori ,  Minoru Fujisawa ,  Koji Hara

IPC分类号： G10H1/00 ,  G11B20/10 ,  G11B20/18 ,  G11B27/034 ,  G11B31/02

CPC分类号： G11B27/034 ,  G10H1/0066 ,  G11B20/10527 ,  G11B2220/218 ,  G11B2220/2545

摘要： A performance information recording/playing apparatus corrects recording/playing errors in performance information which is reproduced from or recorded to a recording media by a performance information playing/(recording) device in accordance with event information. The performance information recording device includes a state information generating device which generates state information indicating a state of musical tone for a predetermined musical tone after a change has occurred in event information which represents a change in the predetermined musical tone, and a recording device for recording the event information and the state information in a recording media sequentially. The performance information playing device includes a playing device for playing event information which represents a change in a predetermined musical tone and state information which indicates a state of a musical tone for the predetermined musical tone, this information having recorded in a recording media. Further, the performance information playing device includes an event information correcting device for correcting errors in the event information, which is reproduced from the recording media, based on the state information which is reproduced in the same manner.

摘要翻译： 演奏信息记录/播放装置根据事件信息，通过演奏信息播放/（记录）设备来从记录媒体再现或记录到演奏信息中的记录/播放错误。 性能信息记录装置包括：状态信息生成装置，其在表示预定乐音的变化的事件信息中发生指示在改变之后的预定乐音的音调状态的状态信息;以及记录装置 顺序地记录媒体中的事件信息和状态信息。 演奏信息播放装置包括用于播放表示预定乐音的变化的事件信息的播放装置和指示用于预定乐音的音调状态的状态信息，该信息被记录在记录媒体中。 此外，演奏信息播放装置包括：事件信息校正装置，用于基于以相同的方式再现的状态信息来校正从记录媒体再现的事件信息中的错误。

公开(公告)号：US5270476A

公开(公告)日：1993-12-14

申请号：US668989

申请日：1991-03-12

申请人： Fumio Rokkaku ,  Takenori Yamamori ,  Satoshi Otsuka ,  Mitsuhiro Umeta ,  Minoru Fujisawa

发明人： Fumio Rokkaku ,  Takenori Yamamori ,  Satoshi Otsuka ,  Mitsuhiro Umeta ,  Minoru Fujisawa

IPC分类号： A63H5/00 ,  G10H1/00 ,  G10H7/00 ,  G04B13/00

CPC分类号： A63H5/00 ,  G10H1/0066

摘要： An electronic musical instrument is controlled to receive key operation messages from a keyboard, sequencer or the like so as to control the data in such a manner that the disadvantages of a first-in first-out system and a map system are diminished and the newest data can be obtained rapidly. A reading device sequentially reads musical pitches out from a first memory so that it can be decided whether the values indicated on note-on/off flags in a second memory have the same state as the flags in a third memory. A command is issued to generate and/or truncate (or mute) musical tones based on key-depression (i.e., key state) data for the musical pitches registered in the second memory, if the flags are not identical with each other. On the other hand, the key-depression data are discarded without issuing any command if the flags are the same.

摘要翻译： 电子乐器被控制以从键盘，音序器等接收钥匙操作信息，以便以先入先出的系统和地图系统的缺点减少最新的方式来控制数据 数据可以快速获得。 读取装置从第一存储器顺序地读出音高，从而可以判定第二存储器中的音符开/关标志上指示的值是否与第三存储器中的标志具有相同的状态。 如果这些标志不相同，则发出命令以基于用于登记在第二存储器中的音高音的按键抑制（即，键状态）数据来产生和/或截断（或静音）音调。 另一方面，如果标志相同，则按下按键数据而不发出任何命令。

公开(公告)号：US5074185A

公开(公告)日：1991-12-24

申请号：US487728

申请日：1990-03-05

申请人： Masashi Nishikawa ,  Fumio Rokkaku ,  Satoshi Otsuka ,  Mitsuhiro Umeta

发明人： Masashi Nishikawa ,  Fumio Rokkaku ,  Satoshi Otsuka ,  Mitsuhiro Umeta

IPC分类号： G10H1/057 ,  G10H7/00

CPC分类号： G10H1/057 ,  G10H7/00

摘要： An envelope-generating apparatus for an electronic musical instrument is disclosed. The apparatus which generates an envelope signal for a musical tone includes a rate detector for detecting the actual rate-of-change of the envelope signal at an instant before quick-attenuation of the signal is to commence, and a quick-attenuation controller for first setting a predetermined attenuation rate for the envelope signal based on the actual rate-of-change detected by the rate detector and thereafter controlling quick-attenuation of the envelope signal. The apparatus further could include a level detector for detecting an actual envelope signal level at an instant before quick-attenuation commences. Also, in place of the rate detector, a musical pitch-detector for detecting the actual pitch of a musical tone being generated could be provided, or a characteristics-detector for detecting musical tone characteristics of a newly generated tone, or volume-detector means for detecting the total tone volume of all musical tones being generated could be provided. Such different detectors provide different data utilized by the apparatus or instrument to optimize the quick-attenuation process by accelerating it without causing any noticeable click noise.

摘要翻译： 公开了一种用于电子乐器的信封产生装置。 产生乐音的包络信号的装置包括速率检测器，用于检测信号快速衰减之前瞬间的包络信号的实际变化率，以及用于第一个信号的快速衰减控制器 基于由速率检测器检测到的实际变化率来设置包络信号的预定衰减率，然后控制包络信号的快速衰减。 该装置还可以包括用于在快速衰减开始之前的瞬间检测实际包络信号电平的电平检测器。 此外，代替速率检测器，可以提供用于检测正在产生的乐曲的实际间距的音调音调检测器，或用于检测新产生的音调的乐音特性的特性检测器或音量检测器装置 可以提供用于检测正在产生的所有乐音的总音量的检测。 这种不同的检测器提供由装置或仪器使用的不同数据，以通过加速快速衰减过程来优化快速衰减过程，而不引起任何明显的点击噪声。