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Model | D7721 |
Application Scenario | Small and Medium-sized Meeting Rooms (4–8 participants) |
Effective Pixels | 8.42 Megapixels |
Digital Zoom | 5× |
FOV | D: 119°, H: 110°, V: 72° |
Maximum Video Resolution | 4K@30fps |
Focus | Fixed Focus |
AI Modes | Single-person Tracking, Multi-person Tracking, Presenter Tracking, Presenter Close-up |
Backlight Compensation | Supported |
SNR | >55 dB |
Digital Noise Reduction | 2D & 3D Noise Reduction |
Video Resolution | MJPEG: 3840×2160@30/25fps, 1920×1080@30/25fps, 1280×720@30/25fps H.264: 3840×2160@30/25fps, 1920×1080@30/25fps, 1280×720@30/25fps YUY2: 1920×1080@30/25fps, 1280×720@30/25fps, 640×360@30/25fps |
Video Encoding Format | H.265 / H.264 / MJPEG |
Network Protocol | RTSP, RTMP |
Mechanical PTZ | Pan: ±10°, Tilt: ±10° |
Electronic PTZ | 5× Digital Zoom |
Preset Positions | Supports up to 3 Preset Positions |
Built-in Microphones | 8 × Omnidirectional Microphones |
Built-in Speaker | 1 × Full-range Speaker, Sensitivity: 83 dB ± 2 dB |
Pickup Range | 6m |
Audio Sampling Rate | Output: 16 kHz / 44.1 kHz / 48 kHz Input: 16 kHz |
Audio Codec | AAC |
Audio Processing | AEC (Acoustic Echo Cancellation), Automatic Noise Reduction, Automatic Gain Control |
Connection Type | USB 3.0, backward compatible with USB 2.0 |
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