Abyssmedia AudioRetoucher 4.8.0.0 + Portable

Abyssmedia AudioRetoucher 4.8.0.0 is a Windows audio utility for changing the key, tempo and playback speed of existing recordings. It suits hobby producers, singers and instrumentalists who need to transpose backing tracks, slow down difficult passages for practice or experiment with altered vocal sounds.

Pitch adjustment covers six semitones in either direction, with 0.1-semitone increments for finer control, while leaving the tempo unchanged. A separate tempo control changes timing without shifting the key. For effects that link both parameters, the speed control raises or lowers pitch and playback speed together.

AudioRetoucher supports MP3, WMA and WAV files, includes BPM detection for checking song tempo, and provides bass boost and treble enhancement to adjust low- and high-frequency emphasis. MP3+G karaoke support keeps accompanying CDG lyrics synchronized when tempo or speed changes.

With its controls gathered in one interface, it offers a straightforward way to prepare audio before working in a DAW. The listed operating systems are Windows Vista, 7, 8, 8.1 and 10; no VST or other plugin format is specified.