I recorded all my Quadradisc without problems and I play them from Data-DVD oder media-player without any loss.
Of course there are many traps:
24/192kHz WAV is needed or you get triangles instead a fine sine. Audacity is a useful tool with it's repair function.
Don't connect any HDMI, the handshake will limit your output to 20kHz! Use RGB.
And you need a new wire (need 2 out and 2 In = 4) soldered just behind the first amplifier after phono input, the RIAA equalizer. I did with 5 / 3 amplifiers from JVC and Panasonic without problem.
With my old XP compi that was no problem, but win7 and higher has limiters for In and Out. So I use now an external analog - USB made for musicians (Focusrite Scarlett 2i2 = 150$) and I'm very satisfied, no hum, direct USB - wav.
Sorry can't send you a sample, because yahoo limits all attachments to 25MB.
If you want to do it, ask more info.
I don’t mean to hijack this thread, but I’ve searching for the “definitive guide to digitizing CD-4 records”, I hope my reply stays within the spirit of the thread.
I’ve read enough to know it can be done, and I think I have all the gear to do it, but I’ve not seen mention of soldering this wire anywhere yet ((probably just missing it the awesome pile of expert knowledge on this site), and I’m probably missing other things too . Ultimately, I would like to create a bit for bit digital representation of the actual analog vinyl media. I don’t know if that would be supported in a single FLAC file, or If I would need (some number of) individual WAV files to represent both the audio and the carrier signal. I envision a world where my discs are backed up, can be played via computer, but still must be demodulated within software or an outboard CD-4 decoder. For the later, the computer would be sending sending that vintage decoder exactly what it is expecting to receive (probably need to attenuate that signal?). Any pointers? I have to think this has been done already by some smart person around these parts . Much to learn and many questions…. Thanks!
— Michael (noob ramping up as fast as I can)
p.s. pointers to best practices for cleaning up clicks and pops, as they do happen, is appreciated too.. I’ve never done a “needle drop” … think that’s term for digitizing vinyl? I’m a Mac guy, but have Windows and Linux too. I use an older RME UFX interface, but also have a Sound Devices MixPre 6 II that can record high bit/sample rates too (33bit float).