"HD" digital voice reception using an RTL-SDR dongle
Channel: Adrian M
Date: 17/02/2017

This video demonstrates digital voice demodulation on an Android mobile phone, using a simple RTL-SDR dongle.
The digital voice stream occupies 10 KHz of bandwidth. Other SDR devices can be connected to the phone to be able to also transmit.
Voice encoding uses the high definition Opus codec. Voice packets can be streamed to the internet if the Wifi connection is working.