increase default gain for arecord -- sphinx

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Trying to use "pocketsphinx_continuous" and "pocketsphinx_tidigits" speech recognition from bash commandline on a zaurus 3200 with a wm8750 audio controller. 

Basically not getting much of any recognition at all.  Thinking this is due to my alsa configuration. 

I can record using sox fairly well if I increase the gain with a command such as:

rec -S -c1 -r24k test.wav vol 120

However, I'm not sure how to increase volume gains for "arecord" and/or "pocketsphinx_continuous". 

"arecord" produces very silent garbled recordings.

I already have my input source maxed out in alsamixer. Any ideas how to set the default gain of alsa higher?
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