Method, device, storage medium, and headphones of headphone virtual spatial sound playback

Headphones with virtual spatial sound playback effect, comprising:

• a device of headphone virtual spatial sound playback, a left ear speaker, and a right ear speaker;
• the device of headphone virtual spatial sound playback comprises a timbre equalization filter module and an HRTF filter module;
• the timbre equalization filter module is configured to obtain an original sound signal A0 from a player and preset spatial orientation information of an intended virtual sound source, to perform filtering on the original sound signal A0 through a timbre equalization function C based on the spatial orientation information of the intended virtual sound source, and to obtain an equalized sound signal AC;
• the HRTF filter module is configured to filter the equalized sound signal AC through an HRTF function, and to output a left ear sound signal AL and a right ear sound signal AR;
• wherein, the spatial orientation information of the intended virtual sound source comprises a horizontal orientation angle θ and a vertical orientation angle φ;
• the relationship between the equalized sound signal AC and the original sound signal A0 is expressed as:
• A
• C
• =
• A
• 0
• ⁢
• C
• ;
• the timbre equalization function C is expressed as:
• C
• =
• {
• G
• 0
• ,
• f
• <
• f
• 0
• G
• 0
• ⁢
• K
• 0
• H
• ,
• f
• ≥
• f
• 0
• ,
• wherein f is frequency of the original sound signal A0, f0 is a crossover point, H is amplitude spectrum of the HRTF function, K0 is an equalization gain factor, G0 is an overall gain factor.

A method of timbre equalization in virtual spatial sound playback, comprising:

• before filtering an original sound signal A0 from a player through an HRTF function, filtering the original sound signal A0 through a timbre equalization function C based on preset spatial orientation information of an intended virtual sound source, to obtain an equalized sound signal AC;
• wherein, the spatial orientation information of the intended virtual sound source comprises a horizontal orientation angle θ and a vertical orientation angle φ;
• the relationship between the equalized sound signal AC and the original sound signal A0 is expressed as:
• A
• C
• =
• A
• 0
• ⁢
• C
• ;
• the timbre equalization function C is expressed as:
• C
• =
• {
• G
• 0
• ,
• f
• <
• f
• 0
• G
• 0
• ⁢
• K
• 0
• H
• ,
• f
• ≥
• f
• 0
• ,
• wherein f is frequency of the original sound signal A0, f0 is a crossover point, H is amplitude spectrum of the HRTF function, K0 is an equalization gain factor, G0 is an overall gain factor.