MICHAEL ROBIN

Because the ATSC committee could not agree on supporting a single scanning format, North America is faced with a choice of 18 formats if we choose a 60Hz-related

The problem is compounded by the virtual impossibility of achieving a common frame rate. Because the ATSC committee could not agree on supporting a single

Digital video is a method of representing the infinite variations of video signal levels inside a specified limit (e.g. 0mV to 700mV) as a limited number

Resolution Many of the aspects of today's legacy television standards (SDTV) were developed through experiments carried out in the 1930s. They reflect

MPEG editing North American (FCC) and inter national (ITU) spectrum management concerns resulted in the analog television on-air channel allocations and

Audio synchronization Analog audio is difficult to handle. There are frequency response problems, distortion problems (harmonic and intermodulation),

Combining multiple audio channels into a single stream is called multiplexing. It’s complex and requires careful planning. However, there are many solutions available, which the author reviews

The original development of analog television was based on the concept of direct, real-time, on-air transmission of live programs and, occasionally, films.

The chosen television picture repetition rate is aimed at satisfying different requirements

The key to efficient compression is noise reduction prior to the compression stage. Michael Robin shows readers how noise adversely affects compression and reveals tips to remove it

In a previous article, we discussed analog audio SNR concepts. As mentioned, the dynamic range is restricted at the top by clipping (THD 1 percent) and

Michael Robin shows readers how analog noise is detrimental to the encoding results and what steps they can take to remove the noise and maximize the signal quality

The world around us is analog. Our perception mechanism is also analog. Standard audio transducers, such as the microphone and the loudspeaker, are analog

A guide through the building blocks of digital technology

Given history, the development of accepted standards for digital video could be a challenge. The author takes a look at standards bodies and the industry’s past standards

In the 1980s, many interested parties began developing concepts of advanced television, or HDTV, geared at reproducing superior-quality 16:9 aspect ratio

The advent of digital processing of video signals has introduced a new twist in the concept of picture resolution. This article will analyze some of the implications.

In the analog video world, the picture resolution is expressed in lines per picture height (LPH) and reflects the losses caused by the vertical and horizontal