This week I’ve been playing with our recently acquired Revox B77 1/4″ recorder. It’s a stereo half-track model, and I use it at 7ips. Currently I’m not sure what actual tape I’m recording to, as it’s a 20ish-minute offcut from a reel that was found to be blank at the end of a transcription job. The two tracks presented here represent two very different production methods now open to me. 

“Changes Afoot” was sent track-by-track to tape, from DAW, and back again, to produce a digitally mixed master. A couple of those tracks were recorded particularly “hot” to bring out more tape character. No noise reduction was used at all. Signal-to-noise on any single tape recording in this setup was was found to be around 60dB.

“Innocence 2010” started as a digital stereo pre-master that I was never fully happy with, which was sent to tape via a skunkworks noise reduction system I’m working on behind the scenes; the system is not yet complete, but has enough processing built to give a useful 10dB gain in signal-to-noise ratio without any significant audible artefacts, as borne out by the 69-70dB signal-to-noise ratio found in this setup even after peak-limiting.

I suspect the signal-to-noise ratio is limited by noisy pre-amps on my DAW setup; I’ll need to swap to a different audio interface to confirm. That’s something to play with another day. Overall I’m VERY impressed with the overall sound quality this kit is able to deliver, and the range of analogue “colours” it can provide. I’m really looking forward to finishing the skunkworks noise reduction project; I have my eyes set on somewhere near 24dB noise reduction once it’s fully up and running. But it’s good to prove that I can both encode and decode on-the-fly!

Watch this space!