Abstract: Multiple devices with access to similar audio signals can join a communication channel in order to share data such as files, links, and documents. The communication channel may be created based on audio present in a geographical location of each device. Each device may receive and capture the local audio and transmit audio segment data to a server. The server may process the audio segment data to determine if audio segments for the multiple devices are considered to match within a threshold. The server identifies a moderator device of multiple devices attempting to create a communication channel. The audio signal from the moderator device is processed and used to determine which other devices should join the communication channel. The present technology allows users within a geographical location to quickly and securely join a communication channel and easily identify a moderator and participants of the communication channel.