Audio driver componentization

A computing device comprising:

• a host computer;
• a digital signal processor (DSP);
• a memory to store:
• a driver which, when executed by the host computer, controls the DSP;
• an audio filter graph including a plurality of filters each being executable, in full or in part, by the host computer or the DSP to:
• receive an audio data stream;
• make the received audio data stream available for transformation;
• and
• transform, in a predetermined manner, the audio data stream made available;
• an application program which, when executed by the host computer, interfaces with the audio filter graph to output a rendering of the transformed audio data stream.

An audio signal processing device comprising:

• an audio signal input device;
• an audio signal output device;
• a processor;
• an accelerator device, in communication with the audio signal input device, the processor, and the audio signal output device, for processing audio signals;
• and
• a memory for storing a driver program including a plurality of filters each of which, when executed by the processor, controls the accelerator device, wherein:
• each said filter has an instruction set which, when executed, receives an audio data stream, transforms the audio data stream in a predetermined manner, and then outputs the transformed audio data stream;
• the instruction set of each said filter is executed by either the processor or the accelerator device;
• a mixing filter of the plurality of filters mixes a plurality of audio data streams received by the audio input device and outputs the mixed plurality of audio data streams;
• and
• a rendering filter of said plurality of filters renders the mixed plurality of audio data streams for output by the audio output device.

An apparatus comprising a host processor in communication with a plurality of digital signal processors (DSP), wherein:

• the host processor executes a driver;
• the driver has a plurality of driver components;
• and
• each said driver component has an instruction set executable by a respective said DSP to transform an audio data stream in a predetermined manner different from that of the other said driver components.