Vehicle and audio processing method for the same

Patent metadata

Field	Value
Publication number	US-11070915-B2
Application number	US-201916693247-A
Country	US
Kind code	B2
Filing date	Nov 23, 2019
Priority date	Jan 3, 2019
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A vehicle and an audio processing method for the same are provided to allow a sound level output through a speaker to be maintained at a preset sound level by adjusting a volume of a power amplifier to a constant value based on modulation information of a received broadcast signal. The audio processing method includes receiving a broadcast signal and obtaining modulation information of the broadcast signal and determining volume information of the broadcast signal based on the modulation information. A volume of a power amplifier is adjusted based on the determined volume information to adjust an output sound level of the broadcast signal to correspond to a preset output sound level.

First claim

What is claimed is:

1. An audio processing method for a vehicle, comprising:
receiving, by a controller, a broadcast signal and obtaining modulation information of the broadcast signal;
determining, by the controller, volume information of the broadcast signal based on the modulation information of the broadcast signal; and
adjusting, by the controller, while the broadcast signal is being received, a volume of a power amplifier based on the determined volume information to adjust an output sound level of the broadcast signal to correspond to a preset output sound level of a broadcast receiving apparatus of the vehicle.

2. The audio processing method of claim 1 , wherein the modulation information is obtained through classification of a transmission region, a broadcasting station, a broadcast title, and a broadcast content, of the broadcast signal.

3. The audio processing method of claim 2 , wherein the modification information includes at least one of the group consisting of: a modulation index and a frequency deviation that are distinguished by each of the transmission region, the broadcasting station, the broadcast title, and the broadcast content, of the broadcast signal.

4. The audio processing method of claim 3 , wherein the broadcast content is divided into a speech dominant content and a music dominant content.

5. The audio processing method of claim 1 , wherein the adjusting of the volume of the power amplifier includes allowing the broadcast signal to be output at a sound level corresponding to a preset volume setting value.

6. A vehicle, comprising:
a tuner configured to receive a broadcast signal through an antenna;
a signal processor configured to obtain modulation information of the broadcast signal;
a power amplifier configured to output an audio signal according to a preset volume; and
a controller configured to determine volume information of the broadcast signal based on the modulation information; and while the broadcast signal is being received, adjust a volume of the power amplifier based on the determined volume information such that an output sound level of the broadcast signal corresponds to a preset output sound level of a broadcast receiving apparatus of the vehicle.

7. The vehicle of claim 6 , wherein the modulation information is obtained through classification of a transmission region, a broadcasting station, a broadcast title, and a broadcast content, of the broadcast signal.

8. The vehicle of claim 7 , wherein the modification information includes at least one of the group consisting of: a modulation index and a frequency deviation that are distinguished by each of the transmission region, the broadcasting station, the broadcast title, and the broadcast content, of the broadcast signal.

9. The vehicle of claim 8 , wherein the broadcast content is divided into a speech dominant content and a music dominant content.

10. The vehicle of claim 6 , wherein the adjusting of the volume of the power amplifier includes allowing the broadcast signal to be output at a sound level corresponding to a preset volume setting value.

11. An audio processing method for a vehicle, comprising:
receiving, by a controller, a broadcast signal and obtaining at least one of a modulation index and a frequency deviation of the broadcast signal;
determining, by the controller, volume information of the broadcast signal based on the at least one of the modulation index and the frequency deviation of the broadcast signal; and
adjusting, by the controller, while the broadcast signal is being received, a volume of a power amplifier based on the determined volume information to adjust an output sound level of the broadcast signal to correspond to a preset volume setting value of a broadcast receiving apparatus of the vehicle.

12. The audio processing method of claim 11 , wherein the at least one of the modulation index and the frequency deviation of the broadcast signal is obtained through classification of a transmission region, a broadcasting station signal, a broadcast title, and a broadcast content, of the broadcast signal.

13. The audio processing method of claim 11 , wherein the broadcast content is divided into a speech dominant content and a music dominant content.

14. A vehicle, comprising:
a tuner configured to receive a broadcast signal through an antenna;
a signal processor configured to obtain at least one of a modulation index and a frequency deviation of the broadcast signal;
a power amplifier configured to output an audio signal according to a set volume; and
a controller configured to determine volume information of the broadcast signal based on the at least one of the modulation index and the frequency deviation of the broadcast signal; and while the broadcast signal is being received, adjust the volume of the power amplifier based on the determined volume information such that an output sound level of the broadcast signal corresponds to a preset volume setting value of a broadcast receiving apparatus of the vehicle.

15. The vehicle of claim 14 , wherein the at least one of the modulation index and the frequency deviation of the broadcast signal is obtained through classification of a transmission region, a broadcasting station, a broadcast title, and a broadcast content, of the broadcast signal.

16. The vehicle of claim 15 , wherein the broadcast content is divided into a speech dominant content and a music dominant content.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Sang Heun
• Kim Joo Young

Classifications

• H04R2499/13

  Acoustic transducers and sound field adaptation in vehicles · CPC title

• H04R2430/01

  Aspects of volume control, not necessarily automatic, in sound systems · CPC title

• H03J1/0066

  with means for analysing the received signal strength (H03J1/0083 takes precedence) · CPC title

• H03G7/007

  of digital or coded signals · CPC title

• H03G7/002 Primary

  in untuned or low-frequency amplifiers, e.g. audio amplifiers (H03G7/007, H03G7/001, H03G7/008, H03G7/02, H03G7/06 take precedence) · CPC title