Abstract: A technique for producing audio includes providing multiple audio tracks of respective sound sources of an audio performance and rendering a sound production of the audio performance at a listening venue by playing back the audio tracks on respective playback units.

Abstract: Disclosed herein is a network communicating with a plurality of mobile electronic devices. The network and the mobile electronic devices may support rollback of updated firmware/software from an updated version to a previous version. The previous version may be stored in non-volatile memory in the mobile electronic device. The non-volatile memory may be, for example, a NAND-type flash memory. In an embodiment according to the present invention, a backup zone of non-volatile memory may be employed to backup firmware/software to be updated in the mobile electronic device. An update agent may be provided to update firmware/software in the mobile electronic device. The update agent may include updating software stored in the mobile electronic device. In an embodiment according to the present invention, automatic rollback may be supported. In another embodiment according to the present invention, a user-initiated hard rollback may also be supported.

Abstract: In a networked videoconferencing system, a receiver with a number of receiving stations receives calls from a number of different calling stations. To get appropriate bandwidth, two calls are connected at the same time from the calling station to one of the receiving stations. The receiver includes an access switch that uses information from the calling station to pair calls together so that two calls from one calling station are routed to the same receiving station, regardless of the order in which the calls are received by the access switch. The access switch can use one or a combination of routing methods including storing all pairs of incoming numbers in a table and/or by using comparisons of similar numbers.