A free app for Mac, by Ocenaudio.

Ocenaudio is a tool for editing audio files, with an emphasis on music. It is a powerful audio editor, which is very easy to use and offers a large number of editing tools. It is an open-source project, which is developed by a group of people, with the goal of providing an excellent audio editing experience to all users.

It supports all major audio formats, including MP3, OGG, FLAC, WAV, and many other formats. It also supports a large number of audio effects, including the most popular ones, such as EQ, gain, filtering, compression, and many other effects.

It provides a powerful editing environment, with many different editing tools, including the ones that are usually found in music editing applications, such as cuts, copy, paste, and many other tools. It also includes a number of new tools, which are not found in most music editing applications, such as a powerful audio editor, a real-time preview of the audio file, and a spectrogram view.

It has a very simple interface, which allows you to do a lot of things quickly and easily. You can also customize the interface to your needs, by changing the display and the editing window.