Abstract: A multiple audio track recording and playback system having at least two audio inputs, a first audio input for receipt and recording of audio tracks AT representing a first audio stream, a second audio input for receipt of a second audio stream, the system is configured for playback of audio tracks recorded on the basis of the first audio stream and the playback is performed with reference to a tempo reference, the tempo reference is automatically derived from beats obtained through beat detection, and the system is configured for beat detection on the basis of at least the first audio stream and the second audio stream.

Abstract: A digital image processing system has a pipeline bus for transferring addresses and data in parallel among the components of the system, which include an image memory, an address generator and an intensity processor. The pipeline bus includes a pipeline address bus, a pipeline data bus, and a master timing bus. Through the use of handshake signals, the pipeline bus permits a free flow of pipelined data among the components at whatever rate is necessary to complete the particular processing task. Image data is transferred in the form of N.times.N pixel subimage blocks which can be addressed using a single address.