An operator selects an application on a first user computing device to request a data transfer with a second user computing device. The first user computing device broadcasts an audio token comprising data. The first user computing device activates a microphone component, successively cycles through available audio configurations, applies each selected audio configuration to received audio token data, determines a signal score for each applied audio configuration, and transmits processed audio token data and signal scores to an account management system. The account management system also receives processed audio token data from multiple other computing devices of the same model as the first user computing device. The account management system selects a default audio configuration for the model based on the determined signal scores. The account management system transmits instructions to known computing devices of the model to apply the default audio configuration to future reception of audio token data.