Sound effect apparatus
US5241604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Jan 15, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In a sound effect apparatus which processes audio signals, a volume controller controls the volume of sound and a preset volume is detected by a detector. A plurality of delay lines delay audio signals by different delay times. A plurality of level converters generate reverberation sounds by decreasing the level of the delayed audio signals. Generated reverberation sounds and the input audio signal are added. The values of the level to which signals are lowered in the level converters are changed equally in response to the detected volume. When the detected volume is smaller than a specified volume, the values of the level to which signals are lowered are equally decreased. When the detected volume is larger than a specified volume, the values of the level to which signals are lowered are equally increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.