I900 mobile phone volume adjustment method (including ringtone volume and conversation volume)

Many camera friends are worried about the volume of i900/i908, which generally reflects the sound of ringtones and conversations.

Small! There are many ways to do this on the Forum, but the solution still cannot solve the problem! Country of reference

Other posts are shared with you.

Go to the mobile phone engineering mode and modify the Voice settings of the mobile phone:

I. Enter the engineering mode of voice configuration: * #0002*28346 #

Ii. Modify voice configuration parameters

1. Outbound call status: No earphones are inserted

Menu: menu-> normal-> Handset

A. speaker volume settings:

Register group: When you adjust the volume of the speaker, use "DAC (02), SPK (02)

"Two registers.

B. microphone volume settings:

Register group: When you adjust the volume of the receiver, use "mpbst (22)" for one mail

Memory.

C. Set the recording volume:

Register group: When you adjust the volume of a recording, use "rBST (14), rvol (12)

"Two registers.

2. Headset call status: plug in the headset

Menu: menu-> normal-> headset

A. Set the volume of the earphone:

Register group: When you adjust the volume of the headset, use "DAC (02), HP (04 )"

Two registers.

B. Microphone (MIC) Volume settings:

Register group: When you adjust the volume of the receiver, use "mpbst (22)" for one mail

Memory.

C. Set the recording volume:

Speaker group: When you adjust the volume of the recording, use "rBST (14), rvol (12)

"Two registers.

3. example of how to increase the microphone mic volume

Menu: menu-> normal-> handset/headset. After modification

Row: menu-> apply.

Mpbst (22), set to + 30db to solve the problem that the volume of "Microphone" is too small and the recipient listens

The problem is not clear.

(If the modification is ineffective, you can also choose "menu-> talking ".

.)

The following is background information: main functions of some voice card chip registers:

Function Description

-----------------------------------------------------

-------------------------------------------------------

-----

0C: SPK (speaker control register)

Controls the volume of a speaker (receiver.

04: HP (earphone control register)

It is mainly used for volume control of headphones.

0C: DAC (audio digital-to-analog conversion control register)

It is used to control the sound mixing volume of the speaker (receiver) and earphone.

12: rvol (Audio Amplifier volume control register)

Used to control the volume during audio recording (Analog-to-analog conversion) and enlarge the range.

It can be divided into two types: standard mode and extended mode.

14: rBST (recording selector control register)

It is mainly used to set the regulator during the analog-to-analog conversion (recording) process.

This register can adjust the baseline value of the recording volume.

22: mpbst (microphone control register)

It is mainly used to set the volume control of the microphone.

 

Finally, the custom parameter wm9713 control util. Helps you

Comparison.

These are default values in case anyone wants

Revert back

Menu> normal> Handset

DAC (0C)-4.5

SPK (02)

-3

Mpbst (22) + 12

RBST (14) + 0

Rvol (12) 21

Menu> normal>

Headset

DAC (0C)-1.5

HP (04)-12

Mpbst (22) + 24

RBST (14)

+ 20

Rvol (12)-1.5

Menu> normal> camcoder

DAC (0C)

-4.5

SPK (02)-3

Mpbst (22) + 12

RBST (14) + 20

Rvol (12) 15

Menu

> Talking> Handset

RCV (02)-3

Rx (16)-3

Mpbst (22)

+ 12

Mvol (0e) 0

M2bst (10) + 0

TX (08)-6

Menu> talking>

Earjack

HP (04)-7.5

Rx (16)-6

Mpbst (22) + 12

Mvol (0e) 0

M2bst (10)

0

TX (08)-6

Menu> talking> speakerphone

SPK (02)

-1.5

Rx (16) 0

Mpbst (22) + 12

Mvol (0e)-3

M2bst (10) + 0

TX (08)

-6

Menu> talking> btmono

Adcv (12) + 1, 4.5

Rx (16)-6

V2m (18)

-9

TX (06)-9

Ac97

Address 00

Value 0000.

Mark FFFF