Free Sound InDepth

Sound In Depth is a powerful and easy-to-use audio editing and Converting program with multi-language support.Manage and edit your sound files.Perform various operations such as cut, copy, and paste features , mix tracks, or apply effects to your recordings. Built-in amplitude-envelope editor, a customizable spectrogram mode, & a frequency-analysis window for audio-analysis applications, batch open/edit most audio formats and much more.