Lighting integrated sound processing

A method of sound-based operation of a lighting system, the method comprising:

• providing multiple lighting fixtures;
• receiving, by the multiple lighting fixtures, a sound;
• transmitting, by at least two lighting fixtures of the multiple lighting fixtures, digital audio streams that each contain an audio content corresponding to the sound, wherein each lighting fixture of the at least two lighting fixtures comprises a microphone, a transmitter, a light source to emit an illumination light, and a lighting driver to provide a power to the light source;
• and
• identifying, by a central processor that is external to the multiple lighting fixtures, the sound by subtracting a first digital audio stream of the digital audio streams from a second digital audio stream of the digital audio streams.

A method of sound processing in a lighting system, the method comprising:

• providing a first lighting fixture and a second lighting fixture;
• receiving, by the first lighting fixture, a voice command;
• receiving, by the second lighting fixture, the voice command;
• transmitting, by the first lighting fixture, a first digital audio stream that contains a first audio content corresponding to the voice command;
• transmitting, by the second lighting fixture, a second digital audio stream that contains a second audio content corresponding to the voice command;
• identifying, by a central processor, the voice command by subtracting the first digital audio stream from the second digital audio stream;
• and
• transmitting, by the central processor, to the second lighting fixture a response to the voice command, wherein the central processor is external to the first lighting fixture and the second lighting fixture, wherein the second lighting fixture comprises a motion sensor and wherein the central processor transmits the response to the voice command to the second lighting fixture in response to a motion detection by the motion sensor.