Zenblaster
y.s:
>>> Aren't records mastered on metallic plates?<<<
Well, firstly mastering was/is done on tape.
Digital mastering on tape also, and later on with digital, on hard drives, on digital master consoles etc. etc.
I guess what you are referring to is the DMM process (Direct Metal Master) which came pretty much at the end of the vinyl process --- and was supposed to cut out a lot of the 'normal' vinyl processing i.e. to create superior quality LPs (the price reflected this too).
Normal processing was cutting a 'lacquer' (disk) from the tape master by applying RIAA when the cutting lathe produced/cut it.
From the lacquer was produced a 'father' from which was produced a mother (all by electro-plating) from this 'mother' were then produced the stampers of numerous generations.
I hope I got most this right. So I think your idea of 78s! being produced with metal masters seems a bit off.
As you can see a lot of delicate manual work went/goes into the 'normal' process with plenty of opportunity to screw it up. Also the 'father 'pulled' from the 'lacquer' needed to get some hand 'cleaning' (under the microscope picking out residue etc.) followed by polishing also a labour intensive job and rather delicate.
DMM has/had its own issues, and cost was not the least to say. But it did produce a superior product just by looking at it. Those disks are/were also usually a LOT more quite in terms of groove noise.
I'm sure e.g. Atmasphere may be able to correct or corroborate the above.
Greetings,
Axel
y.s:
>>> Aren't records mastered on metallic plates?<<<
Well, firstly mastering was/is done on tape.
Digital mastering on tape also, and later on with digital, on hard drives, on digital master consoles etc. etc.
I guess what you are referring to is the DMM process (Direct Metal Master) which came pretty much at the end of the vinyl process --- and was supposed to cut out a lot of the 'normal' vinyl processing i.e. to create superior quality LPs (the price reflected this too).
Normal processing was cutting a 'lacquer' (disk) from the tape master by applying RIAA when the cutting lathe produced/cut it.
From the lacquer was produced a 'father' from which was produced a mother (all by electro-plating) from this 'mother' were then produced the stampers of numerous generations.
I hope I got most this right. So I think your idea of 78s! being produced with metal masters seems a bit off.
As you can see a lot of delicate manual work went/goes into the 'normal' process with plenty of opportunity to screw it up. Also the 'father 'pulled' from the 'lacquer' needed to get some hand 'cleaning' (under the microscope picking out residue etc.) followed by polishing also a labour intensive job and rather delicate.
DMM has/had its own issues, and cost was not the least to say. But it did produce a superior product just by looking at it. Those disks are/were also usually a LOT more quite in terms of groove noise.
I'm sure e.g. Atmasphere may be able to correct or corroborate the above.
Greetings,
Axel