There are various multimedia converters available for Linux, there is no harm to try new application, well this application is not new and been around from quite sometime. Selene media converter lets you convert audio and video files, this software is an ultimate multimedia converting tool, that can solve virtually all your video/audio converting needs. It supports almost every file format that you are likely to come across and can encode them to popular output formats like WAV/MP3/AAC/FLAC/OPUS/MP4/MKV/OGG/OGV/WEBM etc. It aims to provide a simple GUI for converting files to popular formats along with powerful command-line options for automated/unattended encoding.
selene converter

selene media converter

Features:
  • Supports almost all input file formats that you are likely to come across (powered by ffmpeg)
  • Encode videos to common file formats like MKV, MP4, OGV, and WEBM
  • Encode music to common audio formats like MP3, MP4, AAC, OGG, OPUS, FLAC, and WAV
  • Supports encoding to latest formats like H265/HEVC, WEBM and OPUS
  • Option to pause and resume encoding
  • Option to run in background and shutdown PC after encoding
  • Command-line interface for unattended/automated encoding
  • Bash scripts can be written to control the encoding process

Available for Ubuntu 17.10 Artful/17.04 Zesty/16.04 Xenial/14.04 Trusty/12.04 Precise/Linux Mint 18/17/13/and other related Ubuntu Derivatives
To install Selene Media converter in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

That's it
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