A Digital Editing Suite in an Analogue Environment

After installing a digital serial editing suite with connections to analogue devices via D/A- and A/D-converters, the limit of D/A conversion was obvious. Rise and fall times after SAV and before EAV, which are not in conformity with the analogue requirements, are producing massive Ringing. Missing requirements in the CCIR 601/656 and SMPTE 259M are giving all designers the ability to interpret the Recommendations the way they would like to have it. ITU and SMPTE are paying attention on this fact, as well as Tektronix, after receiving my inquiry, how the Recommendations shall be interpreted. The implementation of digital filtering at the source, where the digital signal is generated is necessary.

Published

1995-02

Content type

Original Research

DOI

10.5594/M00838

ISBN

978-1-61482-922-5