Mono-a-Mono 2.5

Mono-a-Mono removes scratches and tape or surface noise from stereo recordings of mono sources. It can be used to enhance digital recordings of old records (whether 78, 45, or 33 rpm, shellac, acetate or vinyl), audio tapes (reel-to-reel or cassette), or even cylinder recordings, provided only that the playback and digitisation of the signal has been performed in stereo, but the original source was mono. It rarely needs any configuration or tweaking. It produces excellent results automatically.

Mono-a-Mono uses a simple muting algorithm to remove the most obvious clicks, and then filters out any components which are not present in both left and right channels. In this way, almost all the audible surface noise can be removed, and there are very few cases where any audible artefacts are introduced.