analog to digital video converter 1.support CIF, D1resolution 2. Two-way audio, H.264 ... ) Video bit rate: 32Kbps-4Mbps Continuously adjustable, Frame rate: 1-30 (1-25) Continuously adjustable.13) Image delay is less than ... CompressionH.264 single-channel independent codingFrame Rate25 frame/s (PAL ), 30 frame/s(NTSC ), adjustableImage AdjustmentBrightness, contrast, hue, saturation, image quality ...