| NEW
Sonic Tonic for Audio Coding |
Achieving great sounding coded audio is easier said than
done. What are the critical elements that set apart great
sounding digital channels or streams, especially at lower
bitrates? Improving codec performance is accomplished
through innovative signal conditioning and processing means.
Frank Foti explains how various signal processing and
conditioning means can be used to bring to life coded sound. |
|
5.1 Surround Sound
Compatibility Within HD Radio And The Existing FM-Stereo
Environment |
There are currently 4 proposed methods for surround
broadcasting: the three matrix systems and the MPEG Spatial
system. Frank Foti compares the systems and points out
critical technical issues that broadcasters must be aware of
as they consider surround. |
|
The Killer App for FM: 5.1 Surround Sound |
For the first time since 1961, when FM implemented stereo,
we have technology that will keep FM radio competitive with
other existing mediums-- the ability to broadcast distinct
5.1 multichannel audio. Frank Foti discusses "The
Killer App for FM." |
| Quality, Clarity, and
Competitive On-Air Processing: Understanding Clipper
Induced Intermod Distortion |
In this age of bigger, better, and who's louder,
broadcasters need to realize that their audience now has
many more choices of what to listen to. Processor
design must raise the bar with fresh innovation that yields
clarity, quality, and competitive loudness. |
|
Injecting Excitement
Back Into Radio! |
Frank Foti's Radio Guide cover story talks about why
5.1 Surround Sound may just be FM radio's saviour, and
delves deeply into the technology behind it. |
|
Initiating the Surround Sound Era for Digital Radio |
Want some fast facts about how 5.1 Surround Sound can be
broadcast using HD Radio technology? Read this two-page
backgrounder. (PDF viewer required.) |
|
Radio's Field of Dreams! |
5.1-Channel audio on FM? It's possible! And Omnia's Frank
Foti is excited about the prospect. In this position paper,
Frank outlines what it will take to make Multichannel Sound
a reality on the FM band. (PDF viewer required.) |
| Enhancing the Digital
Path: Digital Multiplex (D-MPX) Connectivity |
This discussion will reveal a new concept for high
performance MPX generation and interconnectivity to an audio
processor. And with the advent of HD radio, a new
concept for a high performance digital path is presented. |
|
What
HD Radio Needs to WOW Today’s Radio Listeners |
You've probably been enjoying Multichannel 5.1 home theater
audio for a while now. You might even have multichannel SACD
or DVD-Audio music discs. So why not 5.1 radio broadcasts?
HD Radio makes it possible - Read our position paper to find
out how. (PDF suitable for viewing and printing.) |
| HD Radio Installation Checklist | A
step-by-step guide that addresses issues specific to HD
Radio installations. If you plan on implementing HD
Radio, read this! |
| Audio Processing
and HD Radio | A
primer for radio professionals making the transition to
HD Radio. Looks at the differences between analog and
digital broadcasting, and discusses processing requirements
and transmission methods. |
| Normalizing The IBOC And FM-AM-Analog Audio Signal Paths | Frank
Foti and iBiquity's Glynn Walden discuss
"blending" of DAB's analog and digital
signals, and how to accomplish a seamless match. |
| Audio Processing For DAB and the Internet- How Audio Quality and Intelligibility Can Be Improved In the Data Reduced Environment, Using Dynamics Control | Omnia has been involved with DAB testing and implementation since the beginning. This paper shows how audio quality and intelligibility can be improved in the data reduced environment, using dynamics control. |
| What Happens to My Recording When it’s Played on the Radio? | "Few
people in the record industry really know how a radio
station processes their material before it hits the FM
airwaves. This article's purpose is to remove the many
myths and misconceptions surrounding this arcane
art." |
| Audio Processing: A Retrospective | How we got here from there; or, A
Brief History of Audio Processing in Broadcasting. |
| Broadcast Signal Processing and Audio Coding: Are We Trying To Mix Oil and Water? | The dilemmas involved with bitrate reduction in the broadcast signal chain, and how to overcome them with audio processing. |
| Critical Issues and Considerations for an
All-Digital Transmission Path | Discussions of and solutions for the real and potential problems faced in implementing and maintaining an all-digital transmission path for FM radio.
|
| DTV Audio Processing: Exploring The New Frontier! | An exploration of processing methods and requirements for Digital Television. |
| Digital Broadcast Audio Processing: Finally, the New Frontier | A look at issues involved in advancing the state of the art of DSP applications in audio signal processing. |
| Digital Dynamics Processing: It's All In The "Samples!" | Contrary to the old adage, less is not more... especially when processing audio in the digital domain. Frank Foti explains why higher sample rates for processed audio means better output quality. |
| Digital Peak Modulation Control: An Alias Free Limiting/Filtering Method Utilizing 48KHz Sampling And No Overshoots | How sampling rate affect limiting and filtering in digital broadcast audio processors, and how to eliminate aliasing. |
| Omnia Audio Processing Plug-In For The ITU BS-412 Multiplex (MPX) Specification | The ITU's BS-412 MPX power limitation specification is being actively enforced throughout much of Europe. Omnia processors are fully BS-412 compliant; this paper details the technology behind our solution. |
| The Basics of Multi-Band 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 | Principles of voice processing and how to achieve superior anti-sibilance results with a new, more accurate way of de-essing. |
| 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. |
