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| In addition to liking a hot signal, it also likes nice sharp square wave data.
If the heads on the cassette aren't clean and/or in good condition, there may be difficulties. If the azimuth is out by just a small amount, the waveform really rounds off. There is a clipping circuit in a timecode reshaper that fixes these problems. I used the Otari reader/re-shaper, but almost anything that purports to recondition ( not regenerate) timecode will do. I suspect a cheap fuzzbox will do too, but have a listen to what the data sounds like coming off the cassette, it shouldn't be dull sounding. Typically there are some thumps and a chattering along with a tone. Each of the Oberheim devices from this era have a distinctive sound, once you've heard it a few times, you can tell which is which. A comparison can be made by attempting a cassette dump from the front panel. The tone and chattering will be full on bright, and a cassette recording should be slightly duller, but not dramatically duller. Another issue can be a data inversion. Until I standardized which cable and cassette machine I used, the backup and restore detail was a bit hit and miss. Still another issue is the mono/stereo quandry. My technique was to record both channels and then play from only one of them, leaving a spare track in case of dropout (poor tape to head contact for a moment). Also a second pass was made immediately after the first in case of physical damage to the playing surface, tape breakage and repair etc. .Interestingly,after a restore, patch A1 will be whatever was in there before the restore until you press "A" "1" to load the tape's patch A1. Good luck with your quest --- On Thu, 9/5/13, 65 Lotus <Lotus@...> wrote: |