Solution Background
As remote work trends upward in recent years, the demand for high-quality, reliable, and cost-effective collaboration solutions has significantly increased. For conference platforms to provide an almost face-to-face experience, they must capture voice clearly and accurately to ensure efficient communication.
Traditional microphone array solutions not only capture human voices in meetings but also capture other environmental noises. The advanced voice algorithms of XMOS have addressed this issue, and the PXVF3800-KIT developed based on XMOS's new generation master controller XVF3800 perfectly meets the current application needs of meeting scenarios.
Solution Overview
The PXVF3800-KIT features the new XVF3800 processor with built-in AEC, NS, AGC, adaptive beamforming algorithms, suitable for use in corporate meetings, video conferencing all-in-ones, meeting treasures, business display screens, and other fields.
PXVF3800-KIT supports microsoft teams™ and zoom™ certification, providing a quick-to-market meeting solution, ideal for business and consumer conference platforms.
The PXVF3800-KIT Quad Mic Conference Solution can also be adjusted to customer needs, designed as either a 180-degree pickup bar microphone array or a 360-degree pickup ring microphone array, to meet different application scenario needs.
Solution Features
XMOS Master Controller
XVF3800 is a high-performance speech chip optimized for voice calling scenarios, suitable for use in corporate meetings, video conferencing all-in-ones, meeting treasures, business display screens, and other fields
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Flexible pairing with 4-way PDM microphone solutions, adjustable to "bar" or "ring" microphone arrays;
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Supports USB Audio Class 2.0 (UAC 2.0);
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Supports microsoft teams™ and zoom™ certification;
DSP Algorithm Processing
PXVF3800-KIT includes microphone interfaces, voice processing, and control modules, allowing developers to fully optimize voice performance according to the acoustic characteristics of specific products
- Acoustic Echo Cancellation (AEC)
The acoustic echo cancellation feature eliminates echo from microphone audio inputs, reducing far-end echo to extract clear voice signals.
- Noise Suppression (NS)
Noise suppression reduces static and diffused noise sources while maintaining vocal loudness unchanged.
- Automatic Gain Control (AGC)
Microphone pickup volume adjusts automatically with distance of the speaking voice to maintain sound level consistency.
- Adaptive Multi-beam Forming (BF)
Adaptive beamformers track stationary and non-stationary voice sources, determine direction of arrival (DoA), and isolate desired speech, thus boosting polyphony and reverberation cancellation performance.
- Voice Activity Detection (VAD)
Controls IC and AGC adaptiveness to optimize output of proximal voice.