Try slightly worn vinyl. There's crackles and scratches at various times which reduce quality, but don't affect anything. As the quality is already lower on higher frequencies, these flaws in the vinyl become more prominent, and cause the waveform to slip forward fast at these points.
Would you be able to shed any light as to what exactly is happening? As you can see it also affects lower frequencies too, but not enough to affect quality.
3-hour radio show, Mixvibes Cross only! http://soundcloud.com/stealthii/isa3 MacBook Pro 13" Summer-2011 16GB RAM, Vertex-III SSD OSX 10.7.3 Ecler Evo 5 Mixer Technics 1210MK5 x2 Ortofon S-120 OM carts x2
The fact is that at higher samplerate, you need to upper the latency.
For instance : 128@44Khz <=> 256@88Khz If you don't do that you'll end up with dropout and crackles as you said, in my case I couldn't go below 192@88Khz.
Support@MixVibes wrote:The fact is that at higher samplerate, you need to upper the latency.
For instance : 128@44Khz <=> 256@88Khz If you don't do that you'll end up with dropout and crackles as you said, in my case I couldn't go below 192@88Khz.
Ah, I should have noticed this before! 88kHz means you sample twice than with 44kHz, so this means more stress for the CPU. Sounds logically to me!
Anyway, I just want to confirm that this bug is fixed it the upcoming release of Mixvibes Cross. I've tested it at 88.2 and 96khz and the timecode analysis is perfect. I'd like to send a shout to the dev team for this - I've been reluctant to move from 1.2.5 because of this, now 1.4.0 fixes it Thanks.
These high sample rates also mean the built in RIAA filter is more bearable. That's not for this topic though. There's a few other anomalies with high sample rates, but that's not for this topic either. Stay tuned for updates on me fighting for the high sample rate pushers
3-hour radio show, Mixvibes Cross only! http://soundcloud.com/stealthii/isa3 MacBook Pro 13" Summer-2011 16GB RAM, Vertex-III SSD OSX 10.7.3 Ecler Evo 5 Mixer Technics 1210MK5 x2 Ortofon S-120 OM carts x2