EP 0101895 A3 19850619 - REVERBERATION GENERATION METHOD AND DEVICE FOR ANALOQOUS TONE SIGNALS
Title (en)
REVERBERATION GENERATION METHOD AND DEVICE FOR ANALOQOUS TONE SIGNALS
Publication
Application
Priority
DE 3231925 A 19820827
Abstract (en)
[origin: EP0101895A2] 1. Device for generating reverberation for analog audio signals, comprising an A/D converter for converting the analog audio signals into digital audio signals, a processing unit for processing the digital audio data, a D/A converter for reconverting the processed digital audio data and a microprocessor controlling the device, the processing unit exhibiting an audio data store and a 16-bit computer for additions and multiplications, which are connected to lines for the digital audio data, characterized in that the converters (AD, DA) are designed for processing 12- or 14-bit audio data and in that the controlling microprocessor (MP) is connected to the lines (4) for the digital audio data, designed for internal 16-bit processing and used as computer for all-pass calculations, which executes multiplications which are limited to particular values which result from very few steps such as 0.5, 0.625, 0.75, 0,875 by shifting and, if necessary, adding digital values.
IPC 1-7
IPC 8 full level
G10K 11/00 (2006.01); G10K 15/12 (2006.01)
CPC (source: EP)
G10K 15/12 (2013.01)
Citation (search report)
- [A] FR 2277488 A1 19760130 - POLYGRAM GMBH [DE]
- POLYTECHNISCH TIJDSCHRIFT GELUID EN TRILLING, Band 35, Juni 1980, Seiten 80-84, DELFT, (NL). D. GRIESINGER:"Programmeerbare digitale nagalm". * SEITE 81, SPALTE 1, ZWEILE 18 - SPALTE 3, ZEILE 28; FIGUR 1 *
- RADIOMENTOR ELECTRONIC, Band 42, Nr.1, Januar 1976, Seiten 023-026, BERLIN, (DE). K. BADER et al.:"Klangumformung durch Computer". * SEITE 024, SPALTE 1, ZEILEN 3-30; SPALTE 3, ZEILE 33 - SEITE 025, SPALTE 3, ZEILE 32; FIGUREN 1,3 *
Designated contracting state (EPC)
AT BE CH GB IT LI LU NL
DOCDB simple family (publication)
EP 0101895 A2 19840307; EP 0101895 A3 19850619; EP 0101895 B1 19890322; AT E41714 T1 19890415; DE 3231925 A1 19840301; DE 3231925 C2 19860417
DOCDB simple family (application)
EP 83107156 A 19830721; AT 83107156 T 19830721; DE 3231925 A 19820827