Quality Checking Turntable

[trendkiller]

Hello,

Does anyone know anything about the turntables in this video? The stopped upon detecting a crackle? Do these still exist?

https://youtu.be/6d4wBCADxZo?t=199


Thanks.

[martinstamper]

Not sure about those ones but this might be of interest. And I think one came up for sale on German ebay a while ago. "Automatic Tick Registration Machine" by Polygram

Screen Shot 2020-02-19 at 13.31.55.png

[trendkiller]

That does look interesting, thank you. I can't seem to find anything about them though.

[Aussie0zborn]

This turntable is primarily designed for playing mothers. It plays the record backwards and stops when a "tick" is detected. The operator can then play the record from that point on in the normal direction and examine the tick without searching.

The reason the record is played backwards is that a tick always sounds like a tick whether it's played backwards or forwards. It can't ever be part of the music. If the record played in the normal direction, a snare drum would activate the stop circuit. When played backwards, the snare drum and its reverb tail no longer present a short sharp sound.

I saw a lot of these At EMI New Zealand. They hadn't been used for years because "they don't really work" I was invited to take them with gear I bought but decided against it.

[llary]

I'm not sure if you are interested in these as a curiosity or to do actual quality control. Software is a better way to do quality control these days, you can record at high speed and there is commercially available click/pop detection software.

[phax]

Not sure about those ones but this might be of interest. And I think one came up for sale on German ebay a while ago. "Automatic Tick Registration Machine" by Polygram

Screen Shot 2020-02-19 at 13.31.55.png

we have it for sale!

have a look here: https://www.lathetrolls.com/viewtopic.php?f=4&t=7941&p=52064&hilit=atrem#p52064

[trendkiller]

This turntable is primarily designed for playing mothers. It plays the record backwards and stops when a "tick" is detected. The operator can then play the record from that point on in the normal direction and examine the tick without searching.

The reason the record is played backwards is that a tick always sounds like a tick whether it's played backwards or forwards. It can't ever be part of the music. If the record played in the normal direction, a snare drum would activate the stop circuit. When played backwards, the snare drum and its reverb tail no longer present a short sharp sound.

I saw a lot of these At EMI New Zealand. They hadn't been used for years because "they don't really work" I was invited to take them with gear I bought but decided against it.

Ah, that makes sense. Good ol' EMI...

[trendkiller]

I'm not sure if you are interested in these as a curiosity or to do actual quality control. Software is a better way to do quality control these days, you can record at high speed and there is commercially available click/pop detection software.

Thanks. Mostly, I was curious; I hadn't seen these before and thought it was cool. The thought of comparing one to software piqued my interest.

[frechdachs]

I'm not sure if you are interested in these as a curiosity or to do actual quality control. Software is a better way to do quality control these days, you can record at high speed and there is commercially available click/pop detection software.

Could you tell me about such a software? I'm looking for an automatic digital solution to detect and record pops and clicks.

Also, does anyone know whats the best needle to play mothers?

Thanks!