Roland's VR-4HD AV Mixer is a great solution for live streaming four HD cameras and six microphones. It is the mixer that we have used for all our live streaming events with NYMAZ, the Northern Chamber Orchestra, and many other partners.
The VR-4HD is a complete HD studio in a compact and portable package that replaces several different pieces of complex A/ V equipment. Designed with single-person operation in mind, the VR-4HD enables easy switching and mixing of sound and video using advanced video and audio Digital Signal Processing (DSP) along with dedicated hardware controls faders, buttons and touch screen interface. It beautifully integrates a digital audio mixer, video switcher, multi-viewer touch screen and USB video/audio streaming interface into a stand-alone device. This portable live HD production solution is ideal for schools, churches, council meetings, corporate events, sports, training sessions, or any other live event.