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1. 发明授权

US06175872B1 Collaborative environment for syncronizing audio from remote devices 失效
标题翻译：用于从远程设备同步音频的协作环境
公开(公告)号：US06175872B1
公开(公告)日：2001-01-16
申请号：US08990122
申请日：1997-12-12
申请人： Eric K. Neumann , David J. Reider
发明人： Eric K. Neumann , David J. Reider
IPC分类号： G06F1516
CPC分类号： G10H1/0066 , H04L67/38
摘要： Apparatus and software systems are disclosed that allow real-time interactive playing of musicians each at remote sites from each other. The remote sites are interconnected over a local communications network or a wide area network like the Internet. The apparatus is connected to music synthesizers that accept streams of MIDI data for playing, or generate streams of MIDI data by playing. The streams of MIDI data are bundled by a MIDI management system into transfer control protocol packets, such that the packets of MIDI data may be transferred over the communications network as or within the transfer control packets. In addition, the networked, remote computer systems are synchronized to a standard clock which is appended to the MIDI data packets, and additionally, the network delay is calculated and also appended to the MIDI data packets. In this manner the local musician can receive the MIDI data packets from the remote sites where musicians are playing and in real-time play with them. The present invention allows other data bases of music to be interrogated and the music therein retrieved for local use, storing and/or editing. The invention allows the received MIDI data from remote sites to be precisely time positioned within the local memory as if on separate tracks like a multi-track tape recorder for later or real-time playing and/or editing.
摘要翻译：公开了装置和软件系统，其允许每个在彼此远程站点的音乐家的实时交互式播放。远程站点通过本地通信网络或像互联网这样的广域网互联。该装置连接到接收MIDI数据流的音乐合成器，或通过播放产生MIDI数据流。 MIDI数据流由MIDI管理系统捆绑成传输控制协议分组，使得MIDI数据的分组可以在传输控制分组中或在传输控制分组内通过通信网络传送。此外，联网的远程计算机系统被同步到附加到MIDI数据分组的标准时钟，并且还计算网络延迟并且也附加到MIDI数据分组。以这种方式，本地音乐家可以从音乐家正在播放的远程站点接收MIDI数据包，并与其进行实时播放。本发明允许询问音乐的其他数据库，并且其中的音乐被检索用于本地使用，存储和/或编辑。本发明允许来自远程站点的接收到的MIDI数据被精确地定时在本地存储器中，如同在诸如多轨磁带录音机的分开的轨道上一样，用于稍后或实时播放和/或编辑。

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