Envivio (NASDAQ:ENVI) has announced video quality and compression efficiency enhancements to its Muse encoders. The improvements span HEVC to MPEG-4 AVC and MPEG-2. Envivio's latest video codec upgrades, including HEVC compression of 4K Ultra HD content, will be demonstrated at IBC in Amsterdam.Live or on-demand HEVC encoding, at resolutions up to 4K Ultra HD, are supported in the newest versions of the Muse software. Also, the company says several tier 1 customers around the world are actively engaged in HEVC field trials as part of Envivio's HEVC Early Access Program. Customers testing Envivio HEVC encoders include U.S. cable operators and telco/satellite operators in Asia and Europe.