Thread: 405 to 625
View Single Post
Old 11th Jan 2017, 11:27 am   #5
suebutcher
Heptode
 
suebutcher's Avatar
 
Join Date: Jul 2012
Location: Daylesford, Victoria, Australia
Posts: 675
Default Re: 405 to 625

Quote:
Originally Posted by julie_m View Post
If you could only somehow get an uncompressed, 6M samples/sec (!) .wav file of the 405-line video, the rest of the process is stuff you can almost do at your leisure. (Playing the raw PCM out via a suitably-fast D-A converter would work, but you probably want to compress it to a standard format in practice.)
I'd thought of that myself, digitally capturing the raw waveform somehow and not bothering with standards conversion until it's convenient. How about splitting the 2 MHz bandwidth video signal into, say, forty channels frequency-shifted down to 0-50kHz, and sampling them? Could equipment designed for music recording be modified to do this?

Optical conversion is too poor in quality to be considered properly saving the material. The best option at the moment is to copy the recording to Umatic tape until a converter becomes available.
__________________
The Waves That Rule Britannia

Last edited by suebutcher; 11th Jan 2017 at 11:33 am.
suebutcher is offline