System and method for automobile noise suppression

• US 20090119099A1
• Filed: 11/05/2008
• Published: 05/07/2009
• Est. Priority Date: 11/06/2007
• Status: Abandoned Application

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Wei, Ming-Ta, Lee, Chun-Min, Hsu, Yu-Chi
• Application Number:
  US12/265,164
• Publication Number:
  US 20090119099A1
• Time in Patent Office: Days
• US Class Current: 704/226
• CPC Class Codes: G10L 21/0208 Noise filtering
• CPC Class Codes: H04M 9/08 Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Abstract

A system and a method for automobile noise suppression in an automobile are provided. The system comprises a processor and a noise suppression device. The noise suppression device is configured for receiving a voice signal, which includes a speech signal and a noise signal. The processor is configured for determining an adjusting parameter set according to an automobile speed signal corresponding to a speed of the automobile. The noise suppression device can suppress the noise signal according to the adjusting parameter set, whereby enhancing the voice quality.

Claims

1. A method for automobile noise suppression in an automobile, comprising:

receiving a voice to generate a voice signal, which includes a speech signal and a noise signal;

determining an adjusting parameter set according to an automobile speed signal corresponding to a speed of the automobile; and

suppressing the noise signal according to the adjusting parameter set.

2. The method as claimed in claim 1, wherein the adjusting parameter set is selected from a group consisting of a noise attenuation slop, a threshold of operating noise attenuation and a maximum noise attenuation level.

3. The method as claimed in claim 1, further comprising a step of:

identifying the speech signal and the noise signal from the voice signal.

4. The method as claimed in claim 1, wherein the step of determining an adjusting parameter set according to an automobile speed signal further comprises:

receiving the automobile speed signal from an odometer through a controller area network bus (CAN bus); and

determining the adjusting parameter set, which is corresponding to the automobile speed signal, by checking a speed-to-parameter lookup table.

5. The method as claimed in claim 1, wherein after the step of suppressing the noise signal, the method further comprises:

generating an adjusted voice signal.

6. The method as claimed in claim 5, further comprising:

transmitting the adjusted voice signal to a radio frequency (RF) module.

7. The method as claimed in claim 5, further comprising:

transmitting the adjusted voice signal to a processor.

8. A system for automobile noise suppression in an automobile, comprising:

a speed sensing device for generating an automobile speed signal;

a processor for receiving the automobile speed signal and determining an adjusting parameter set according to the automobile speed signal; and

a noise suppression device for receiving a voice signal which includes a speech signal and a noise signal, wherein the noise suppression device suppresses the noise signal and generates an adjusted voice signal according to the adjusting parameter set.

9. The noise suppression system as claimed in claim 8, wherein the adjusting parameter set is selected from a group consisting of a noise attenuation slop, a threshold of operating noise attenuation and a maximum noise attenuation level.

10. The noise suppression system as claimed in claim 8, wherein the automobile speed signal is substantially corresponding to a speed of the automobile.

11. The noise suppression system as claimed in claim 10, wherein the processor determines the adjusting parameter set, which is corresponding to the automobile speed signal, by checking a speed-to-parameter lookup table.

12. The noise suppression system as claimed in claim 8, further comprising:

a voice transmitting device for receiving and transmitting the adjusted voice signal.

13. The noise suppression system as claimed in claim 12, wherein the voice transmitting device is a radio frequency (RF) module.

14. The noise suppression system as claimed in claim 8, further comprising a voice receiving device for receiving a voice to generate the voice signal according to the voice, and transmitting the voice signal to the noise suppression device.

15. The noise suppression system as claimed in claim 14, wherein the voice receiving device is a microphone.

16. The noise suppression system as claimed in claim 8, wherein the speed sensing device is an odometer, and the processor receives the automobile speed signal from the odometer through a controller area network bus (CAN bus).

17. The noise suppression system as claimed in claim 8, wherein the adjusted voice signal is transmitted to the processor.