Modify OpenMoko GSM voice
David daviD
davidsalsa at hotpop.com
Thu Aug 2 00:39:41 CEST 2007
I am trying to determine if the OpenMoko GSM voice can be modified by software.
I have heard "it is possible" and "it is impossible". One of these is true.
Does anyone know any details about how it is possible?
The CODEC details are here:
http://www.wolfsonmicro.com/uploads/documents/en/WM8753.pdf
Looking at the OpenMoko audio path, it seems that there is no way to
modify GSM voice.
(http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem)
* audio path Mic -> GSM
o MIC2/MIC2N
o Mic2 Volume
o ALC Micer Mic2
o Left PGA
o Mic Sidetone Mux [Left PGA]
o Mono Sidetone Volume
o Mono Mixer Sidetone Playback Switch
o Mono Volume
o Mono 2 Mux [Inverted Mono 1]
* audio path GSM -> Speaker
o RXP/RXN
o Rx Mixer [RXP - RXN]
o Line Left Mux [Rx Mix]/Line Right Mux [Rx Mix]
o Left Mixer Bypass Playback Switch/Right Mixer Bypass Playback Switch
o Headphone Volume
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