An audio enhancer for old records and tapes that removes noise, pops and clicks from 78rpm records and the like. Yes, Mono-a-Mono is indeed a rather naff name for a program, but it's meant as a pun. If Mano-a-Mano means hand-to-hand, I guess Mono-a-Mono should mean mono-to-mono.
Mono-a-Mono will work on sounds recorded in mono, but replayed and digitised in stereo. It produces a mono output, as close to the original (mono) source as possible. Hence mono-to-mono.
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 or vinyl), and even audio tapes (reel-to-reel or cassette), provided only that the playback and digitisation of the signal has been performed in stereo, but the original source was mono.
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.
Requirements:
Input files in uncompressed stereo
aiff or WAV formats, preferably sampled as 16-bit
pcm at 44.1 kHz.
Enough disc space to store the cleaned (output) files as well as the originals.
Limitations:
Only the first few seconds of each file are processed.
MP4 Converter
838 KB 
$ 19.5