Systems, methods, and devices for processing supplementary data in a buffered radio stream are provided. In one example, an electronic device capable of processing such supplementary data may include a radio frequency receiver, memory, and data processing circuitry. The radio frequency receiver may be capable of receiving and decoding a radio frequency broadcast signal into an audio signal and an audio-identifying non-audio signal. The memory may be capable of buffering the audio signal. The data processing circuitry may be capable of parsing information from the non-audio signal into an audio-identifying component, which may be inserted into the audio signal buffered in the memory.