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US 10,708,690 B2Granted
Method of an audio signal correction
AssigneeYayuma Audio Sp. Z.O.O.
InventorsJaroslaw Proksa, Jerzy Pona, Marcin Skrzypczak
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Abstract
A method is provided for a correction of an audio signal (AS) which is formed using an electroacoustic transducer. The method comprises producing a corrected audio signal (CAS) based on the audio signal (AS) according to the formal I: in which the coefficient B amounts from −10 to 0 and the coefficient C amounts from 0 to 0.04.
Claims12
A method for adjusting audio systems using an electroacoustic transducer (u), the method comprising:
- providing an audio system with an electroacoustic transducer (u);
- determining an amplitude-frequency transmission characteristic of the electroacoustic transducer (u);
- detecting an audio signal (AS) constituting a sound source (s);
- determining an amplitude-frequency transmission characteristic of the audio signal (AS);
- determining a modification function by minimizing the difference between the amplitude-frequency transmission characteristic of the electroacoustic transducer (u) and the amplitude-frequency transmission characteristic of the audio signal (AS);
- creating a modified audio signal (CAS) by applying the modification function to the detected audio signal (AS),
- wherein the modification function comprises a proportional part, an integral part and a derivative part and the application of the modification function to the detected audio signal (AS) resulting in the following formula:
- C
-
-
- A
-
-
- S
-
- (
- t
- )
- =
- A
-
-
- S
-
- (
- t
- )
- +
- B
-
- ∫
- A
-
-
- S
-
- (
- t
- )
-
- d
-
- (
- t
- )
- +
- C
-
- d
-
-
- A
-
-
- S
-
- (
- t
- )
- d
-
-
- t
- and wherein the coefficients B and C are determined by minimizing the difference between the amplitude-frequency transmission characteristic of the electroacoustic transducer (u) and the amplitude-frequency transmission characteristic of the audio signal (AS).
61 more elements
Dependencies are inferred from the claim text.