Abstract:

Ideally, as much audio, video, and metadata information as possible should be acquired to produce archives using the most advanced technology available at the time so that maximum information can be inherited. On the other hand, it is not easy to develop both audio technology and video technology simultaneously or even to integrate them. For example, because we specifically examine audio technology, it is desirable to use video products in the market to achieve the goal. In this sense, we propose the use of IEEE1394 equipment and synchronize their components for integration. We developed a high sampling rate 1-bit audio AD/DA converter that is equipped with IEEE1394 and recording and playback software running on Linux. The software can synchronize a 1-bit audio stream using MPEG-TS of HD video to extend its audio quality using IEEE1394 isochronous streaming with 125-Es resolution. This integration of audio and video is achieved without modifying existing video products. This paper describes the system and the 1-bit audio AD/DA converter (5.6 MHz sampling 8ch in 8ch out or 4.8 MHz sampling 16ch in 16ch out).