[HTC One X] htckt:
By looking at the srs_global.cfg settings there seem to be the following:

Bass enhancer

Bass compressor

Hi pass Filter

Equalizer

Limiter

Here is some of the info I seem to understand from the texts:

trubass_enable =	1 - Trubass Effect. Bass Compressor/Limiter

srs_wowhd_1:wowhd_trubass_min =	0.000	// TruBass Min - control

srs_wowhd_1:wowhd_trubass_window =	1.000	// TruBass Window - control

The range of the effect ranging from 0 to 1.

trubass_compressor =	0.250 - The limiting effect of the compressor. If 1 is original signal this compresses the signal by 25% so for 100 db this outputs 75. Does this sound right?

trubass_freq =	400 - Frequency where the Trubass compressor works. 400 is around the mids of the human voice, so they are actually using the compressor to create a "warm" human voice by compressing that EQ region.

trubass_analysis =	200 - Analysis could be the width of the EQ band, so if you select 400 it will probably select frequencies around 400 too. (perhaps 300-500) ?????

srs_enable =	1	// SRS3D Toggle - toggle , Some SRS 3d effect.

srs_mode =	2	// SRS3D Mode - enum (Mono,Single Speaker,Stereo,Extreme) , SRS is enabled for Single speaker mode only.

limiter_enable =	1	// Limiter Toggle - toggle

The limiter mentioned in the previous post by treebil

limiter_gain =	0.250 - The default limiter gain

srs_cshp_0:cshp_igain =	0.600	// Input Gain - gain

srs_cshp_0:cshp_ogain =	1.000	// Output Gain - gain

First one is probably the voice input gain for the phone app (since its the only input for the device).

So we have a 40% amplification of the voice.

srs_wowhd_1:wowhd_center =	0.500	// Center - control

srs_wowhd_1:wowhd_space =	0.800	// Space - control

First one is Pan, the second one could be something like a stereo widener?????

srs_hpf_1:hipass_order =	4	// Filter Order -

srs_hpf_1:hipass_frequency =	400	// Filter Frequency -

Speaker hipass frequency when speaking into the telephone app. Other settings have hipass set to 200 which is probably for music or other apps????

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And below is a table with some suggested replacement settings for wordpad:

limiter_gain =	0.250

limiter_gain =	0.100

limiter_gain =	0.450

limiter_gain =	0.200

hipass_frequency =	120

trubass_compressor =	0.250

trubass_compressor =	0.100

trubass_freq =	400

trubass_freq =	300

This will shift the trubass effect to a lower frequency.

space =	0.800

space =	0.500

trubass_compressor =	0.250

trubass_compressor =	0.100

By setting the compressor ratio to 0 you will get a 100% uncompressed signal, limited only by the max speaker output the hardware itself allows.

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The first edit I did was replacing the enable =	1 with enable =	0 for everything I could find, the audio came out completely (?) uncompressed and clear.

Note that if you remove the compressor from the phone section the incoming voices will not sound so loud and the volume will be inconsistent. Also, your voice will also be softer and incosistent.

WARNING: I do not take any responsibility for broken speakers etc. When I tried these edits the volume was so loud the speaker made some crackle noises. If you keep that volume level chances are you will destroy the speaker and then it will crackle even at lower volumes.

Hope to see more input in this and more fine tweakings by people who might know what the values are.

All the best