White Papers
The Basics of Look-Ahead Processing
We've been hearing lots of questions lately about look-ahead processing. Omnia's founder, Frank Foti, pioneered the use of look-ahead processing in multiband processors. This paper is an overview of what look-ahead is and how it works.
Adaptive Algorithm For Detecting And Reducing Sibilants In Recorded Speech
Adaptive Algorithm For Detecting And Reducing Sibilants In Recorded Speech
Martin Wolters*, Markus Sapp, Jörg Becker-Schweitzer Institute of Communication Engineering (IENT), Aachen University of Technology (RWTH), Germany (*now with Telos Systems, Cleveland, USA)
Read more: Adaptive Algorithm For Detecting And Reducing Sibilants In Recorded Speech
State of the Art Speech Processing for Broadcasting
Summarizes what sound engineers should know about sibilants and de-essing, and reviews currently used concepts for reducing sibilants in recorded speech.
Read more: State of the Art Speech Processing for Broadcasting
Normalizing The IBOC And FM/AM-Analog Audio Signal Paths
Frank
Foti, Omnia Audio
Glynn Walden, iBiquity Corp.
A critical component to the IBOC transmission system is the relative audio levels of the IBOC and FM/AM-Analog signals in the receiver. The key issue here is being able to create audio levels that are perceived subjectively to be relatively the same, in average volume, when the signal is blending1 between modes. The listener experience could be adversely affected if the audio level abruptly changes, in the blending process. Thus, the question becomes: How can this be normalized, and what are the operating levels required to accomplish this? There may be differences between the "offset" needed for AM and FM, this report covers a testing program to develop the "offset" for the FM channel, testing to determine the AM "offset" will follow.
Read more: Normalizing The IBOC And FM/AM-Analog Audio Signal Paths
