Method of playing sound source and computing device for performing the method

A method of playing a sound source, the method comprising:

• when a listener is located within a playback area of a higher order ambisonic (HOA) sound source, calculating a head related transfer function (HRTF) rendering angle of the HOA sound source according to a first coordinate calculation standard and playing the HOA sound source;
• and
• when the listener is located outside the playback area of the HOA sound source, calculating an HRTF rendering angle of the HOA sound source according to a second coordinate calculation standard and playing the HOA sound source,
• wherein the first coordinate calculation standard and the second coordinate calculation standard include different coordinate systems.

A computing device comprising:

• at least one processor;
• and
• a memory configured to load or store a program executed by the at least one processor,
• wherein the program comprises:
• identifying a playback area for at least one higher order ambisonic (HOA) sound source existing in a target space;
• determining a coordinate calculation standard for playing the HOA sound source based on a positional relationship between the playback area of the HOA sound source and a listener existing in the target space;
• and
• calculating a head related transfer function (HRTF) rendering angle of the HOA sound source according to the determined coordinate calculation standard and playing the HOA sound source.