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Record speed.

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https://well-temperedforum.groupee.net/eve/forums/a/tpc/f/9130004433/m/7601081366

24 March 2019, 06:54 PM
markj
Record speed.

24 March 2019, 08:52 PM
Bernard
The cutting process accounts for the difference in speed. If you draw an angle out from the center of the record, the space within the angle will contain the same amount of information regardless whether on the edge of the record or near the center. The information gets packed closer together as you move towards the center. You're welcome.


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http://www.twistandvibrations.blogspot.com/

24 March 2019, 09:11 PM
CHAS
Aaaaaccckkkk!

Thank you, Bernard. You saved me from a sleepless night.
Poor Calvin


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Several people have eaten my cooking and survived.

24 March 2019, 09:38 PM
AdagioM
Thank you, Bernard!


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http://pdxknitterati.com

24 March 2019, 09:41 PM
Daniel
Ouch.
24 March 2019, 10:48 PM
Axtremus
quote:
Originally posted by Bernard:
The cutting process accounts for the difference in speed. If you draw an angle out from the center of the record, the space within the angle will contain the same amount of information regardless whether on the edge of the record or near the center. The information gets packed closer together as you move towards the center. You're welcome.
It's a practice that the computer storage industry changed as they developed techniques to cramp more data onto disks (floppy and hard and compact and digital video disks alike). Many disk-based data storage systems read/write data at different rates depending on how far the data tracks are away from the center of the disks so as to keep the data density less varied throughout the usable surface of the disks. (See, for example, "zone bit recording.)


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www.PianoRecital.org -- my piano recordings -- China Tune album

24 March 2019, 11:33 PM
Bernard
quote:
Originally posted by Axtremus:
quote:
Originally posted by Bernard:
The cutting process accounts for the difference in speed. If you draw an angle out from the center of the record, the space within the angle will contain the same amount of information regardless whether on the edge of the record or near the center. The information gets packed closer together as you move towards the center. You're welcome.
It's a practice that the computer storage industry changed as they developed techniques to cramp more data onto disks (floppy and hard and compact and digital video disks alike). Many disk-based data storage systems read/write data at different rates depending on how far the data tracks are away from the center of the disks so as to keep the data density less varied throughout the usable surface of the disks. (See, for example, "zone bit recording.)


Another interesting tidbit: CDs read from the center to the outside, the opposite of records.


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http://www.twistandvibrations.blogspot.com/

25 March 2019, 11:14 AM
CHAS
quote:
Originally posted by Bernard:
quote:
Originally posted by Axtremus:
quote:
Originally posted by Bernard:
The cutting process accounts for the difference in speed. If you draw an angle out from the center of the record, the space within the angle will contain the same amount of information regardless whether on the edge of the record or near the center. The information gets packed closer together as you move towards the center. You're welcome.
It's a practice that the computer storage industry changed as they developed techniques to cramp more data onto disks (floppy and hard and compact and digital video disks alike). Many disk-based data storage systems read/write data at different rates depending on how far the data tracks are away from the center of the disks so as to keep the data density less varied throughout the usable surface of the disks. (See, for example, "zone bit recording.)


Another interesting tidbit: CDs read from the center to the outside, the opposite of records.


aacckk ... and I was doing so well.


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Several people have eaten my cooking and survived.

25 March 2019, 11:24 AM
pianojuggler
quote:
Originally posted by CHAS:
quote:
Originally posted by Bernard:
quote:
Originally posted by Axtremus:
quote:
Originally posted by Bernard:
The cutting process accounts for the difference in speed. If you draw an angle out from the center of the record, the space within the angle will contain the same amount of information regardless whether on the edge of the record or near the center. The information gets packed closer together as you move towards the center. You're welcome.
It's a practice that the computer storage industry changed as they developed techniques to cramp more data onto disks (floppy and hard and compact and digital video disks alike). Many disk-based data storage systems read/write data at different rates depending on how far the data tracks are away from the center of the disks so as to keep the data density less varied throughout the usable surface of the disks. (See, for example, "zone bit recording.)


Another interesting tidbit: CDs read from the center to the outside, the opposite of records.


aacckk ... and I was doing so well.
...and CDs record at a constant linear rate so the rotational speed changes as the read head moves from the center toward the outside of the disk.

If I recall correctly, a CD is recorded in a series of concentric tracks, not a continuous track like a vinyl record. This allows faster indexing -- finding the beginning of the next song when you hit the next button.


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pj, citizen-poster, unless specifically noted otherwise.

mod-in-training.

pj@ermosworld∙com

All types of erorrs fixed while you wait.

25 March 2019, 12:37 PM
Piano*Dad
How many Gen Z people even know what a record is ...
25 March 2019, 01:51 PM
markj
My "millennial" daughters love vinyl records. I don't think they are going away any time soon. It is so freaking cool to pick up a 60+ year old piece of technology or a recording from the 1920s or even the young Caruso recordings I have from 1901-1903, all of which were recorded acoustically! No electronics. Before the invention of the electronic microphone, and it instantly and simply works even with the latest and greatest advancements in technology.

IOW, what was thought to be obsolete, never even got close to becoming obsolete. How did the high end analog world even survive??? lol
25 March 2019, 09:19 PM
Daniel
I don't think they're going away.