NTSC signals have a frame rate of 29.97 frames per second. In SDI, audio data is sampled at a rate 30n where n is an integer, e.g. 48K samples per second. Thus there are 1601.6 samples per frame. Although there are an integer number 8008 samples per five frame sequence, two frames have 1601 samples and...http://www.google.com.tw/patents/US6124894?utm_source=gb-gplus-share專利 US6124894 - Audio signal processor
