Low latency real-time audio streaming

A method for audio streaming in a computing device comprising:

• configuring, by an adapter driver associated with an audio device and a wave real-time port driver associated with the computing device, direct access by a client of the computing device and by the audio device to a cyclic buffer for rendering and/or capturing an audio stream;
• mapping a play position register that includes a play position register value to a virtual memory address that is accessible in user mode;
• and
• monitoring hardware position register values that include the play position value to determine latency between a write position and a play position in the cyclic buffer without transitioning between the user mode and kernel mode by accessing the play position register via the virtual memory address in the user mode.

A computer-readable medium having stored thereon computer-program instructions for audio streaming in a computing device, the computer-program instructions being executable by a processor, the computer-program instructions comprising instructions for:

• configuring, by an adapter driver associated with an audio device and a wave real-time port driver associated with the computing device, direct access by a client of the computing device and by the audio device to a cyclic buffer for rendering and/or capturing an audio stream;
• monitoring hardware position register values to determine latency between a write position and a play position in the cyclic buffer, the monitoring not requiring a transition from kernel-mode;
• obtaining clock register values;
• and
• synchronizing audio streams between the audio device and a second audio device as a function of the clock register values, the first and second audio devices having respective and unsynchronized hardware clock registers.