Voice Activity Detection
Understand voice activity detection in Vivox.
Read time 1 minuteLast updated 2 days ago
Voice activity detection detects the presence or absence of speech in an application. In most cases, customers do not need to adjust the default voice activity detection (VAD) settings of the Vivox SDK. The Vivox Unreal SDK does not provide an API to adjust the VAD settings. If you want to modify the code for the Unreal wrapper, you can add support for the
vx_req_aux_set_vad_propertiesvx_req_aux_set_vad_propertiesvx_req_aux_get_vad_propertiesNote
Use when a player uses the onboard microphone and speakers on PCs and mobile devices. Players using high-quality Bluetooth earbuds, headsets or USB headsets might not benefit from as many of those devices have built-in noise reduction or directional microphones that already produce a clean voice signal.
vad_autovad_autovad_autovx_req_aux_set_vad_propertiesvad_autovx_req_aux_set_vad_properties_t *req;vx_req_aux_set_vad_properties_create(&req);req->vad_hangover = 2000;req->vad_sensitivity = 43;req->vad_noise_floor = 576;req->vad_auto = 1;vx_issue_request(&req->base);
Note
Although the VAD ignores the other settings when is enabled, you must provide valid parameters or the call will return an error. This example provides the default values for the , , and .
vad_autovad_hangovervad_sensitivityvad_noise_floorvad_hangovervad_sensitivityvad_noise_floorNote
Changes to the VAD noise floor settings do not affect currently joined channels. If the ability to change VAD settings is available to the end-user, indicate that noise floor changes only take effect in the next voice session or only allow changing the noise floor channel when the client is not in-channel.