pub unsafe extern "C" fn participant_set_voice_signature(
hparticipant: SPXPARTICIPANTHANDLE,
voice_signature: *const c_char
) -> AZACHR
pub unsafe extern "C" fn participant_set_voice_signature(
hparticipant: SPXPARTICIPANTHANDLE,
voice_signature: *const c_char
) -> AZACHR