[FSO] noise reduction and echo cancellation in frameworkd.conf

Davide Scaini dscaini at gmail.com
Fri Dec 11 14:17:56 CET 2009


Hi guys.
I read here [1]. But no really what i want.

If you give a look to /etc/frameworkd.con (both in shr-t and shr-u)
you'll have something like this:

# if you have a ti_calypso, you can choose the dsp mode for audio
enhancement. Valid values are:
#    "short-aec": Short Echo Cancellation (max)
#    "long-aec":  Long Echo Cancellation (max)
#    "long-aec:6db": Long Echo Cancellation (-6db)
#    "long-aec:12db": Long Echo Cancellation (-12db)
#    "long-aec:18db": Long Echo Cancellation (-18db)
#    "nr": Noise Reduction (max)
#    "nr:6db": Noise Reduction (-6db)
#    "nr:12db": Noise Reduction (-12db)
#    "nr:18db": Noise Reduction (-18db)
#    "aec+nr": Long Echo Cancellation (max) plus Noise Reduction (max)
[default]
#    "none": No audio processing.
ti_calypso_dsp_mode = aec+nr


But this seems to not work for my calls... (i played a bit with alsa
states, but seems that the problem is in echo and noise, so i restored
the default shr state). If i want to try some combinations like
short-aec and/or nr:6db, how do i write it? comma separated???
like this:
ti_calypso_dsp_mode = short-aec,nr:6db
?
Thanks (i found no wiki on this...)
d


[1]http://wiki.openmoko.org/wiki/Neo_1973_and_Neo_FreeRunner_gsm_modem#AT.25Nxxxx



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