1. One or more computer-readable media having stored thereon a series of instructions that, when executed by one or more processors of a computer, causes the one or more processors to perform acts including: maintaining a pool of memory available for allocation to a plurality of transform filters executing at a privileged level; allocating a portion of the pool of memory to one of the plurality of transform filters to use to store audio data; and returning the allocated portion to the pool of memory after the plurality of transform filters have finished processing the audio data.