AES E-Library

Graceful Degradation for Digital Radio Mondiale (DRM)

A method is proposed that is able to maintain an adequate transmission quality of broadcasting programs over channels strongly impaired by fading. Although attempts of providing Graceful Degradation are manifold, the so called “brickwall effect” is inherent in most digital broadcasting system. The main concept of the proposed method focuses on the open standard Digital Radio Mondiale (DRM). Our approach is to introduce an additional low bit rate parallel backup audio stream alongside the main radio stream. This backup stream bridges occurring dropouts in the main stream. Two versions are evaluated. One uses the standardized HVXC speech codec for encoding the parallel backup audio stream. The other version additionally uses a specially developed sinusoidal music codec.

Authors: Kraemer, Ferenc; Schuller, Gerald
Affiliation: Fraunhofer Institute for Digital Media Technology IDMT
AES Convention:125 (October 2008) Paper Number:7517 Import into BibTeX
Subject:Audio for Broadcasting

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 125Papers)   /125/7517.pdf

Start a discussion about this paper!