US5241604A
Expired / Lapsed
US
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Sound effect apparatus
Assignee: Toshiba Corp
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Filing: 1991-01-15
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Granted: 1993-08-31
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Expires: 2011-01-15
Abstract
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.
Inventors
- 👤 Yutaka Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:03
CPC Classifications
H; H04; H04R; H04R3/00; G; G10; G10K; G10K15/00; G10K15/08; G10K15/12; G10H; G10H1/00; G10H1/02; H04S; H04S1/00; H04S7/00; H04S7/30; H04S7/305; Y; Y10; Y10S; Y10S84/00; Y10S84/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay times, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals in response to said volume control signal.
Claim 2
Dependent Claim
132 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay times, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals in response to said volume control signal.
Claim 3
Dependent Claim
19 words
An apparatus as cited in claim 1, wherein said volume control means is an adjusting terminal type volume control.
Claim 4
Dependent Claim
17 words
An apparatus as cited in claim 1, wherein said volume control means is an electronic volume control.
Claim 5
Dependent Claim
13 words
An apparatus as cited in claim 1, said detection means is a microcomputer.
Claim 6
Dependent Claim
140 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay times, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals, wherein value of said level is changed continuously in response to said volume control signal.
Claim 7
Dependent Claim
140 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay times, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals, wherein value of said level is changed continuously in response to said volume control signal.
Claim 8
Dependent Claim
142 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay time, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals, wherein said value of said level is changed in stages in response to said volume control signal.
Claim 9
Dependent Claim
142 words
A sound effect apparatus, including input means and output means, for processing input audio signals, comprising: volume control means for controlling a volume of sound; detection means for detecting control of said volume control means to produce a volume control signal; a plurality of delay means for delaying said input audio signals by different delay time, respectively, to produce delayed audio signals; a plurality of level converting means for generating reverberation sounds by decreasing said delayed audio signals to predetermined levels, said level converting means being provided in number corresponding to said delay means; and addition means for adding said reverberation sounds to said input audio signals; said level converting means changing essentially equally the value of said levels of only said delayed audio signals, wherein said value of said level is changed in stages in response to said volume control signal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-30 | 1997-03-01 | 1997-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-30 | 2001-03-01 | 2001-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-30 | 2005-03-01 | 2005-08-31 | $7700.00 | Window Closed / Lapsed |