Aspects of the disclosure provide a method for scattering audio streams. The method can include receiving a set of audio data transmission signals indicating a format of audio data, determining a set of format parameters corresponding to the format of the audio data based on the set of audio data transmission signals, determining whether the set of format parameters are different from a set of previously determined format parameters, searching a lookup table for a build entry identified by the set of format parameters when the set of format parameters are different from the set of previously determined format parameters, and generating a media packet carrying audio samples of the audio data according to the build entry.