METHOD AND SYSTEM FOR AUDIO SYSTEM VOLUME CONTROL

• US 20110021241A1
• Filed: 08/27/2009
• Published: 01/27/2011
• Est. Priority Date: 07/24/2009
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Khanduri, Prakash
• Granted Patent: US 9,154,596 B2
• Time in Patent Office: Days
• US Class Current: 455/550.1
• CPC Class Codes: H04M 1/6016 in the receiver circuit

Abstract

A communication device may determine total gain for a downlink processing path via the communication device. The total gain may be determined based on determination of audio requirements for each of a plurality of audio processing devices supported via the communication device, during the downlink processing path. The communication device is operable to determine a default mix signal gain, a downlink gain adjustment and a calibration gain based on the determined audio requirements, and to calculate the total gain for the downlink processing path based on the determined default mix signal gain, the downlink gain adjustment and the calibration gain. The determination of the total gain may be based on determination of a telephony state in the communication device. The calibration gain may be determined during calibration of the communication device, whereas the downlink gain adjustment may be calculated based on an adjustment step-size and/or a mode based gain index.

Claims

1. A method for audio processing, the method comprising:

performing, by one or more processors and/or circuits within a communication device;

determining audio requirements for each of a plurality of audio processing devices in a downlink processing path of said communication device;

determining a default mix signal gain, a downlink gain adjustment and a calibration gain based on said determined audio requirements; and

calculating a total gain for said downlink processing path based on said determined default mix signal gain, said downlink gain adjustment and said calibration gain.

2. The method according to claim 1, wherein said downlink processing path handles communication of audio signals corresponding to downlink voice call audio stream, ring tones, music, and/or dual-tone multi-frequency (DTMF) based audio playback.

3. The method according to claim 1, comprising performing said calculation of said total gain based on determination of a telephony state in said communication device.

4. The method according to claim 1, wherein said telephony state comprises an on-hook state and/or an off-hook state.

5. The method according to claim 1, comprising determining values for said calibration gain during calibration of said communication device.

6. The method according to claim 1, comprising calculating said downlink gain adjustment based on an adjustment step-size and/or a mode based gain index.

7. The method according to claim 6, comprising determining said adjustment step-size based on user input.

8. The method according to claim 6, comprising selecting said signal gain index from a plurality of predetermined signal gain indexes.

9. The method according to claim 8, wherein each of said plurality of predetermined signal gain indexes corresponds to an audio play combination, said audio play combination comprising audio signals from one or more sources in said communication device.

10. The method according to claim 8, comprising storing said plurality of predetermined signal gain indexes in one or more look-up tables in memory of said communication device.

12. The system according to claim 1, wherein said downlink processing path handles communication of audio signals corresponding to downlink voice call audio stream, ring tones, music, and/or dual-tone multi-frequency (DTMF) based audio playback.

13. The system according to claim 1, wherein said one or more processors and/or circuits are operable to perform said calculation of said total gain based on determination of a telephony state in said communication device.

14. The system according to claim 1, wherein said telephony state comprises an on-hook state and/or an off-hook state.

15. The system according to claim 1, wherein said one or more processors and/or circuits are operable to determine values for said calibration gain during calibration of said communication device.

16. The system according to claim 1, wherein said one or more processors and/or circuits are operable to calculate said downlink gain adjustment based on an adjustment step-size and/or a mode based gain index.

17. The system according to claim 6, wherein said one or more processors and/or circuits are operable to determine said adjustment step-size based on user input.

18. The system according to claim 6, wherein said one or more processors and/or circuits are operable to select said signal gain index from a plurality of predetermined signal gain indexes.

19. The system according to claim 8, wherein each of said plurality of predetermined signal gain indexes corresponds to an audio play combination, said audio play combination comprising audio signals from one or more sources in said communication device.

20. The system according to claim 8, wherein said plurality of predetermined signal gain indexes is stored in one or more look-up tables in memory of said communication device.

11. A system for audio processing, the method comprising:

one or more processors and/or circuits within a communication device, wherein said one or more processors and/or circuits are operable to;

determine audio requirements for each of a plurality of audio processing devices in a downlink processing path of said communication device;

determine a default mix signal gain, a downlink gain adjustment and a calibration gain based on said determined audio requirements; and

calculate a total gain for said downlink processing path based on said determined default mix signal gain, said downlink gain adjustment and said calibration gain.