Numerous new audio metadata format supported.Higher samplerate, precision, live configuration in the core.New remapping, gain, stereo widening, downmixing effects.New audio outputs for Windows Vista, Android, iOS, OpenBSD and OSSv4.Correct support for multi-channel layouts in all formats: 5.1, 6.1 and 7.1.Rewrite of the audio modules, to adapt to the new core.Rewritten audio core, allowing better volume and device management.For subtitles in VLC you can download VLSub. Support for many new devices inputs, formats, and metadata have been introduces along with next-gen codecs. This new version also introduces new rendering pipeline for audio, with better effiency, volume and device management, to improve VLC audio support. Version 4.0 introduces a new user interface, media library browser, VR support, 3D video support, and revised video output functions. VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols.