[T-Mobile Samsung Galaxy S II SGH-T989] bountyman334:
i Have Simple Mobile 50$ Plan unl call,txt,4g web and in montgomery,al...it works sometimes but i just got off the phone with a person on a land line and they heard me but i was still coming in low..... this is the settings on the file incall volume boost

#

# Configures the GeeWiz kernel in-call volume boost levels

#

# The levels are defined as:

#

#	0	- +0dB

#	1	- +6dB

#	2	- +12dB

#	3	- +18dB

#

# There are four configurable level device attributes:

#

#	Handset: /sys/class/misc/incall_boost/incall_boost_rcv

#	Speaker: /sys/class/misc/incall_boost/incall_boost_spk

#	Headphones: /sys/class/misc/incall_boost/incall_boost_hp

#	Bluetooth: /sys/class/misc/incall_boost/incall_boost_bt

# Default boost for handset receiver is +6dB (3)

echo 1 > /sys/class/misc/incall_boost/incall_boost_rcv

# Default boost for speaker is +0dB (3)

echo 0 > /sys/class/misc/incall_boost/incall_boost_spk

# Default boost for headphones is +0dB (3)

echo 0 > /sys/class/misc/incall_boost/incall_boost_hp

# Default boost for bluetooth is +0dB (3)

echo 0 > /sys/class/misc/incall_boost/incall_boost_bt

---------- Post added at 03:55 PM ---------- Previous post was at 03:53 PM ----------

the 90call_vol

# configure your desired audio settings below

# in-call audio gain. These values range from 0 to 3. They control the digital gain

# on the incoming signal. Their meanings are:

# 0 = 0db gain. Quiet. Too quiet, if you ask me

# 1 = +6db gain. Quiet.

# 2 = +12db gain. Loud. Sufficient for most folks, probably. Also the default

# 3 = +18db gain. Holy ****, that's loud! Risk of distortion.

# See how you can control the gain for each audio output? Neat!

INCALL_BOOST_EARPIECE=2

INCALL_BOOST_BLUETOOTH=2

INCALL_BOOST_SPEAKER=2

INCALL_BOOST_HEADPHONE=2

# Now, configure your desired mic gain for each mode.

# Mic gain goes from 0 to 31.

# 0 = -16.5db gain

# 11 = 0db gain

# 31 = 30db gain

# So it looks like each +1 for these values is the same as +1.5db.

# you can fine-tune each for the best performance.

MIC_GAIN_EARPIECE=30

MIC_GAIN_SPEAKER=25

MIC_GAIN_HEADPHONE=29

MIC_GAIN_HEADPHONE_NO_MIC=28

# next, we'll take advantage of cm7's userinit.d feature.

# if your rom doesn't have that, add it to /etc/init.d instead

# just be sure you do the chmod and chown commands below in any case

# mkdir -p /data/local/userinit.d

# place this file in /data/local/userinit.d

# chmod -R 750 /data/local/userinit.d

# chown -R root:shell /data/local/userinit.d

# you should not need to change anything below this line:

# set up in-call boost

echo "$INCALL_BOOST_EARPIECE" > /sys/devices/virtual/misc/voodoo_sound/incall_boost_rcv

echo "$INCALL_BOOST_BLUETOOTH" > /sys/devices/virtual/misc/voodoo_sound/incall_boost_bt

echo "$INCALL_BOOST_SPEAKER" > /sys/devices/virtual/misc/voodoo_sound/incall_boost_spk

echo "$INCALL_BOOST_HEADPHONE" > /sys/devices/virtual/misc/voodoo_sound/incall_boost_hp

# set up in-call mic gain

echo "$MIC_GAIN_EARPIECE" > /sys/devices/virtual/misc/voodoo_sound/incall_mic_gain_rcv

echo "$MIC_GAIN_SPEAKER" > /sys/devices/virtual/misc/voodoo_sound/incall_mic_gain_spk

echo "$MIC_GAIN_HEADPHONE" > /sys/devices/virtual/misc/voodoo_sound/incall_mic_gain_hp

echo "$MIC_GAIN_HEADPHONE_NO_MIC" > /sys/devices/virtual/misc/voodoo_sound/incall_mic_gain_hp_no_mic