Plasma speaker

A speaker comprising:

• an enclosure defining an internal volume;
• at least one sound generator, said sound generator comprising one or more surfaces defining an air-path conduit through which air operably passes in and out of the internal volume, the sound generator further comprising a plurality of electrodes comprising at least one air-exposed electrode and at least one insulated electrode;
• voltage source means configured to generate an electrical field between said at least one air-exposed electrode and said at least one insulated electrode to operatively generate a plasma proximal to the plurality of electrodes and within the air-path conduit;
• wherein:
• the plurality of electrodes are arranged relative to one another and the air-path conduit such that a generated electric field operably induces a generated plasma to cause an airflow through said air-path conduit;
• and
• the voltage source means is further configured to modulate the electrical field in response to a provided electrical sound signal, so as to modulate air flow through the air-path conduit and generate a corresponding sound signal from the speaker.