Kwave is a sound editor that can record to, play, open, and edit many file formats. Kwave makes it simple to edit audio in many ways.

Adjust volume level:

• Fade in, fade out, or custom amplitude curve
• Scale volume by a constant factor
• Normalize volume

Adjust frequency content:

• Lowpass filter
• Bandpass filter
• Notch filter
• Pitch shift

Other features:

• Add noise
• Add silence
• Convert audio sample rate
• Go to position
• Insert audio from clipboard
• Reverse audio
• Save audio blocks between labels as separate files
• Sonagram (spectrogram)

Supported file formats:

• WAV (*.wav)
• Ogg/Opus (*.opus)
• Ogg/Vorbis (*.ogg)
• MP3 (*.mp3)
• FLAC (*.flac)
• ASCII coded audio (*.ascii)
• all file formats supported by libaudiofile (some formats are import only)