Tablet iRULU Tablet Boosting volume levels

Hi All,

Anyone help me understand the following code to be able to boost my volume levels on an iRULU tablet. Not sure how to go about changing the code to do it.

Need to boost both the speaker and headset volume by at least 200%. its so quiet I can't hear it most the time.

phone_volume.conf file

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#Configuration file for the audio volume

#使用说明:
#[PHONE_EARPIECE] -->听*音量设置.听*音量由3个部分控 制,分别是phonepn_gain,mixer_gain,output_gain.
#phonepn_gain =1,4,4,4,4,7 (范围为0~7)
#mixer_gain =3,3,3,4,5,7 (范围为0~7)
#output_gain =60,60,60,60,60,60 (范围为0~63)
#
#声音共分6级,level_1时,声音最小.
#level1, level2, level3, level4, level5, level6
#例如
#phonepn_gain =1,4,4,4,4,7
#level1时, phonepn_gain音量为1. 
#level2时, phonepn_gain音量为4.
#
#
#phonepn_gain 范围为0~7 3dB/step
#mixer_gain 范围为0~7 1.5dB/step
#hp_gain 范围为0~63 1dB/step
#spk_gain 范围为0~63 1.5dB/step
#line_gain 范围为0~31 1.5dB/step



################Phone down stream##################################
[PHONE_EARPIECE]
phonepn_gain =1,4,4,4,4,7
mixer_gain =3,3,3,4,5,7
hp_gain =60,60,60,60,60,60

[PHONE_HEADSET]
phonepn_gain =1,4,4,4,4,7
mixer_gain =3,3,3,4,5,7
hp_gain =20,25,30,35,35,35

[PHONE_SPEAKER]
phonepn_gain =1,4,4,4,4,7
mixer_gain =3,3,3,4,5,7
spk_gain =25,50,53,56,58,60

#蓝牙上行音量控制,可减少蓝牙mic带来 的上行噪音
#值越大,噪音越小,音量越小,声音效果 差
#当前,仅对plan one 配置有效
[BLUETOOTH_UP]
pcm_vol 8



##############Analog FM####################################
[FM_HEADSET]
line_gain =2,3,4,5,6,7
hp_gain =48,50,52,56,58,61

[FM_SPEAKER]
line_gain =2,3,4,5,6,7
spk_gain =20,50,53,56,58,60

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Sorry I'm a total novice at android coe language so i have no idea the correct way to boost it?


Any help is greatly received.

Andy