Spring update! (Or Autumn, or Fall, YMMV)

[kfbkfb]

https://www.phaedrus-audio.com/PHLUX.htm

(just found w/Google - stereo phono cart FR >100kHz)

(possibly an advisory that declicking works better when a wideband phono cart is used)


Kirk Bayne

 

[chucky3042]

https://www.phaedrus-audio.com/PHLUX.htm

(just found w/Google - stereo phono cart FR >100kHz)

(possibly an advisory that declicking works better when a wideband phono cart is used)


Kirk Bayne

As Dave discussed with me in the digital world you really are limited to 22 KHz (good ol Nyquist), so if we did it we would use an external analogue HPF as an input. It amazing how fast you can rattle those diamonds.

 

[par4ken]

https://www.phaedrus-audio.com/PHLUX.htm

(just found w/Google - stereo phono cart FR >100kHz)

(possibly an advisory that declicking works better when a wideband phono cart is used)


Kirk Bayne

I believe that it does. I use both the Sony XLMC-3 and the Audio Technica AT-ART9XA for thier wide frequency response, required for
CD-4. Doing (stereo) needle drops at 192Khz/24-bit (32-bit float) and then applying declicking in software does an amazing job.

Using my tube based preamplifier with passive equalisation helps to allow the big pops through. The large clicks are often many times the level of the actual audio, they are very easy to see and to remove perfectly! The automated process does an excellent job as well. I like to manually remove/repair the big ones first and then run the automated process, to "scrub" the record clean.

I save my rips at 192/24 because hard drive space is cheap but they can be downsampled to CD quality with no noticeable quality loss.

 

[kfbkfb]

We're getting kinda off topic, however, if possible, try feeding the un-EQ'd signal directly from the record (the way I read your post, the RIAA EQ is applied before declicking), the RIAA EQ does affect the click/pop risetime somewhat.


Kirk Bayne

 

[par4ken]

We're getting kinda off topic, however, if possible, try feeding the un-EQ'd signal directly from the record (the way I read your post, the RIAA EQ is applied before declicking), the RIAA EQ does affect the click/pop risetime somewhat.


Kirk Bayne

Off topic? There is no easy way for me to try what you suggest, or else I would.

In theory at least detecting and correcting the clicks before RIAA equalisation would be a good idea. In the post you pointed to the phono cartridge, preamp and the declicking software is all part of a system that Phædrus Audio are selling. I see no pricing for any of the equipment listed either, that always scares me. f you have to ask them for pricing then you can rest be assured that you can't afford it anyway! They do show pricing for the StereoLab Software but it runs on Mac only! They are the same people with the software CD-4 demodulator, also Mac only.

In this case Phædrus Audio is using StereoLab Software for declicking and RIAA equalisation. This for archival purposes, that doesn't sound like the same solution for everyday vinyl playback with real time declicking, as proposed by Involve.

What I'm describing is very similar to what Phædrus Audio is doing, except that in my case the RIAA equalisation is done first by my preamp, then the declicking with software. The process works great for me as is!

 

[kfbkfb]

I'm interested to know the processing sequence in the new Involve pre-amp for declicking and RIAA EQ.


Kirk Bayne