Access to the audio via microphone for Cinterion BGS5 | Thales IoT Developer Community
July 24, 2017 - 10:47am, 1522 views
I wish to know if it is possible for userware to have access to the audio retrieved via a microphone, outside of the context of a voice-call. I've looked at audio specific AT-commands in the Gemalto BGS5 AT Commands Set, but most of them are related to DTMF, or related to calls.
What I wish to achieve, is to listen for ambient noises. I want to pick up a very specific set of tones/bleeps, that have some information encoded in them. These noises would happen when there is little to no GSM connectivity, so it can not be DTMF.