Voice Activity Detection
Understand voice activity detection in Vivox.
読み終わるまでの所要時間 1 分最終更新 7ヶ月前
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 request from the Core SDK. You can manipulate the VAD mic gating by using these requests and handling their responses.
vx_req_aux_set_vad_propertiesTo use and , you need to add these requests to an existing endpoint or an exposed function of the Unity API, or create a new endpoint. To confirm your successful requests, ensure that you handle the responses.
vx_req_aux_set_vad_propertiesvx_req_aux_get_vad_propertiesBefore manually tuning the VAD settings, test your setup using Automatically Adjusted VAD. Automatically Adjusted VAD is better at detecting a player speaking than the default VAD settings.
注
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_autoSet to 1 in the call to enable automatic adjustment. See the example shown below to enable :
vad_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);
注
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_floorIf the Automatically Adjusted VAD does not help, disable vad_auto by setting it to 0 and provide values for , , and .
vad_hangovervad_sensitivityvad_noise_floor注
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.