Issues connecting mic with LTE board
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I'm running into issues getting any kind of audio through the LTE extension board. Both with an adafruit amped mic and a simple electret mic. I've been using this guide:
https://developer.sony.com/develop/spresense/docs/hw_docs_lte_en.html#_how_to_connect_an_analog_microphoneAnd trying to run the rec_play arduino example with no help. Any tips or more complete examples of audio with the LTE board?
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I had to set the analog gain to max to get anything hearable. Maybe you can give it a try?
theRecorder->setMicGain(210)I am using another microphone though
https://www.switch-science.com/catalog/7369/
https://github.com/autolab-fujiwaratakayoshi/2mic_kit_for_spresense_LTEOtherwise difficult to say. I just tried recording only to SD card and paused using audio until there is an answer about the opus codec.