About DSP API

Ethan Brown evandersh at gmail.com
Sat Dec 3 12:11:57 UTC 2011


So, does the dsp_api.ndb->a_du_0 member hold the audio data to be send to
the other peer, or that's something else?  How can I capture the audio data
(after codec), make a slight modification to that data, and send it to the
other mobile?  I can see that AUDIO_TX_TRAFFIC_REQ/AUDIO_RX_TRAFFIC_IND
audio mode were created for that purpose, but I'm not sure how to use
that.  Do I need to make the modifications I need on gsm_recv_voice and
gsm_send_voice (voice.c)?

On Fri, Dec 2, 2011 at 5:50 PM, Sylvain Munaut <246tnt at gmail.com> wrote:

> > Do any of you know where can I find documentation about the DSP API used
> in
> > Osmocom?
>
> Nowhere. There is no doc. (Not that we have access to anyway ... I'm
> sure Texas Instruments has it ...)
>
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