SoX (Sound eXchange) is a cross-platform, open source command line utility for working with audio files. It supports a wide range of audio formats, including WAV, MP3, AIFF, FLAC, Ogg Vorbis, and more. With SoX, users can easily convert, record, play, and manipulate audio files, as well as apply effects and filters. SoX can be used to create soundscapes, mix multiple audio tracks together, create mash-ups, and much more. It also includes a graphical user interface for more advanced users. SoX is an essential tool for any audio professionals or music enthusiasts.
Bundleware Just Bad Software / incredibly difficult to install without bundleware.
Bundleware The installation may contain third-party software. Be careful during installation: https://alternativeapp.info/discussions/applications/11718/be-careful-in-the-installation/
The website http://tapemachine.samalyse.com of the discontinued developer has expired (it is now only a domain occupant), and the last software update was on December 22, 2014. It is still available in the Google Play store. I redirected the "official" link from the TapeMachine site to the Google Play store page for the program. It's not technically correct, but it's better than a dead site.
Warning infected with adware.
Discontinued The program is no longer updated. The latest version, 1.0.14, released in November 2013, can still be downloaded from the official website.