Abstract:

We design a 3D virtual sound synthesis system based on the TMS320C6416 chips. It produces the 3D virtual sound for headphone playback by HRTF(Headrelated Transfer Function), achieves synthesis operations using the DSP library functions, outputs audio through a doublebuffering mechanism by setting the interrupt service, uses the second bootloader to implement its offline operation, and finally completes the audiometric test through the communication between the TLC16C550 chips and PCs. Experimental results show that the correction rate of subjective evaluation achieves 95%. Compared with the efficiency from PCs, the execution efficiency of the system has also improved significantly.

Key words: 3D virtual sound;TMS320C6416;bootloader;HRTF;pingpong buffer