EP 1258865 A3 20040506 - Device for improving the intelligibility of audio signals containing speech
Title (en)
Device for improving the intelligibility of audio signals containing speech
Title (de)
Schaltungsanordnung zur Verbesserung der Verständlichkeit von Sprache enthaltenden Audiosignalen
Title (fr)
Dispositif pour améliorer l'intelligibilité de signaux audio contenant de la parole
Publication
Application
Priority
DE 10124699 A 20010518
Abstract (en)
[origin: EP1258865A2] A variable high-pass filter (VHPF) (20) can be altered in its cut-off frequency (fc), for which purpose it has a controlling input where a control signal can be applied to alter the cut-off frequency. A low-pass filter (10) feeds an audio signal for improvement to the VHPF and an input terminal (1) sets up the audio signal. At the output of the VHPF there is an amplifier stage (30) to amplify the output signal from the VHPF by a factor (g) between 1.5 and 4.
IPC 1-7
IPC 8 full level
H04R 3/04 (2006.01); G10L 13/00 (2006.01); G10L 21/02 (2013.01); H04S 7/00 (2006.01); G10L 21/0232 (2013.01)
CPC (source: EP US)
G10L 21/0364 (2013.01 - EP US); G10L 21/0232 (2013.01 - EP US); H04R 2225/43 (2013.01 - EP US)
Citation (search report)
- [X] US 5083312 A 19920121 - NEWTON JAMES R [US], et al
- [A] US 5170434 A 19921208 - ANDERSON JAMES R [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1258865 A2 20021120; EP 1258865 A3 20040506; EP 1258865 B1 20061018; DE 10124699 C1 20021219; DE 50208467 D1 20061130; JP 2003018691 A 20030117; JP 4141736 B2 20080827; US 2002173950 A1 20021121; US 7418379 B2 20080826
DOCDB simple family (application)
EP 02005495 A 20020311; DE 10124699 A 20010518; DE 50208467 T 20020311; JP 2002143204 A 20020517; US 15215902 A 20020520