191211 DRM+ Tx App Information Video for iOS

191211 DRM Tx App Information Video for iOS This app is an app that receives a voice signal from the built-in microphone of the iPhone, encodes the text data recorded by the user in the text input UI into a DRM signal, and outputs the generated streaming signal as a sound using a stereo speaker. It works as an iPhone app without additional devices, and the encoding option is user adjustable.