Cobra Voice Activity Detection (VAD) FAQ
Voice Activity Detection plays an essential role in speech recognition. It separates audio segments containing speech from those that do not.
Voice Activity Detection software applies a statistical classification rule to the audio stream and returns a probability value indicating speech presence.
webRTC VAD uses a Gaussian Mixture Model (GMM) to classify audio streams based on the principles of voice activity detection. It is part of Google's open-source webRTC project.
Cobra VAD is more accurate and resource-efficient compared to webRTC VAD. It is also cross-platform. Picovoice supports its performance claims with an open-source voice activity detection benchmark.
Yes. Visit the Cobra platform page to try the browser-based demo, which runs entirely in your browser.
Yes. Speech detection, speech activity detection, and voice activity detection are often used interchangeably.
Yes. Cobra VAD supports real-time detection of human speech in streaming audio inputs.
Yes. Cobra VAD can be used to detect human speech in pre-recorded audio files.
Yes. Cobra VAD can analyze the audio tracks of video files to detect human speech.
Yes. VAD is commonly used in telephony and voice over IP (VOIP) applications. Cobra is well-suited for these scenarios.
Anything you can build with other VADs and more, thanks to Cobra’s accuracy and efficiency. Explore use cases like:
Visit the Cobra VAD platform page to learn more.
Visit the Cobra documentation or check out the Cobra GitHub repository.
Yes. When used together with Eagle Speaker Recognition, Cobra VAD can detect speech from a specific speaker in real time.
Thanks to their lightweight and accurate nature, you can achieve personalized voice activity detection without sacrificing performance or responsiveness.
Yes. See the Linux quick start guide and Cobra documentation for more details.
Yes. See the macOS quick start guide and Cobra documentation.
Yes. See the Windows quick start guide and Cobra documentation.
Yes. See the Android quick start guide and Cobra documentation.
Yes. See the iOS quick start guide and Cobra documentation.
Yes. Cobra supports modern browsers like Chrome, Firefox, and Safari. Visit the web quick start guide and Cobra documentation.