This excellent sound editor can record and play sounds, and import and export WAV, AIFF, MP3, and OGG files.

Edit your sounds using cut, copy, and paste features (with unlimited undo functionality), mix multiple tracks, or apply one of the many available effects to your recordings.

For the more advanced user, the program also has a built-in amplitude-envelope editor, a customizable spectrogram mode, and a frequency-analysis window for audio-analysis applications.

Built-in effects include bass boost, wah wah, and noise removal, and it also supports VST plug-in effects.

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