CEDAR Audio announces
DeThump 96 for SADiE
DeThump 96 allows users to remove unwanted low frequency energy bursts - "thumps" - from audio digitised at sampling rates of up to 96kHz. Such thumps may last for many hundreds of milliseconds, so conventional declicking processes are unsuitable for restoring audio containing them. Furthermore, the spectral content of thumps will usually overlap the genuine signal, so simple filters cannot remove them without degrading the underlying signal.
DeThump 96 uses the data in and around the damaged signal to build up a picture of what the low frequency data should have been had the thump not occurred. The process then replaces the thump with restored low frequency audio, leaving the undamaged high frequency data unaffected.
DeThump 96 utilises the floating-point processing offered by SADiE to ensure the highest possible sound quality throughout the system. Furthermore, processing is very rapid, thus allowing near instant evaluation of the result.
Note: Although thumps are most often encountered in signals transcribed from optical soundtracks, damaged 78 rpm records and scratched vinyl discs, they also occur in modern recordings when, for example, microphones and stands are bumped.
The range of CEDAR processes now available on SADiE comprises:
For further information:
Deborah Coral, CEDAR Audio Ltd
20 Home End, Fulbourn, Cambridge, CB1 5BS, UK
Tel: +44 (0)1223 881771 · Fax: +44 (0)1223 881778 · Email: info@cedaraudio.com