How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

In article ,
Scott Dorsey wrote:
Strange - as this is exactly what the BBC did with direct cut discs
before tape days. They used 33 rpm, but fixed pitch coarse groove.

Yes, but they had to cut inside-out because they didn't have effective
chip-chasers. Most US broadcasters did the same thing.

Chip chaser? What that - not a term I'm familiar with.

Note that for broadcast applications, you usually CAN predict when
everything will end, down to the second.

Didn't matter as it was common practice to overlap recordings using two
cutters so any length of prog could be recorded. But in those days progs
were recorded mainly for archive purposes rather than as a production tool
- the vast majority were live.

And in any case a 33rpm coarse groove disc didn't last long enough for
most progs - IIRC about 15 minutes.

--
*If love is blind, why is lingerie so popular?

Dave Plowman London SW
To e-mail, change noise into sound.

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

In article ,
Paul Stamler wrote:
Some labels, including Pathe, did put out center-start records during
the 78 era.

Some radio transcriptions were done that way, too. And radio
transcriptions of long shows were sometimes done alternating
center-start and rim-start, so there would be no jarring change in sound
quality as the operator switched from disc to disc.

Interesting. Makes sense but never seen those. Of course it was before
even my time in broadcasting.

--
*If you think this van is dirty, you should try having sex with the driver*

Dave Plowman London SW
To e-mail, change noise into sound.

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

Dave Plowman (News) wrote:
In article ,
Scott Dorsey wrote:
Strange - as this is exactly what the BBC did with direct cut discs
before tape days. They used 33 rpm, but fixed pitch coarse groove.

Yes, but they had to cut inside-out because they didn't have effective
chip-chasers. Most US broadcasters did the same thing.

Chip chaser? What that - not a term I'm familiar with.

Okay, when you cut a lacquer, it displaces some material, and that material
is called chip. The chip tends to curl inward toward the center of the
record. If you cut inside-out, this is a non-issue, but if you cut
outside-in, the stylus will run over its own chip unless you have a vacuum
device or a brush to sweep it away.

Today on modern lathes we have vacuum devices, and the chip is less prone
to break up and fragment because of the hot-stylus system too.

Note that for broadcast applications, you usually CAN predict when
everything will end, down to the second.

Didn't matter as it was common practice to overlap recordings using two
cutters so any length of prog could be recorded. But in those days progs
were recorded mainly for archive purposes rather than as a production tool
- the vast majority were live.

Right.

And in any case a 33rpm coarse groove disc didn't last long enough for
most progs - IIRC about 15 minutes.

That's why RCA made cutting assemblies for 16" discs. Complete with nasty
horrors like automatic diameter equalization...
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

Marc Wielage wrote:

For some odd reason, there are people who foolishly convert MP3 files to FLAC
(or APE), perhaps in the mistaken belief that it will make the signal "sound"
better.

Sounds like those who buy "tubed" CD players, thinking that the one
tube stage at the player's output will somehow "fix" all the "harm"
done to the signal by all the solid-state stuff.

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

"Markus Mietling" wrote in message
...

Now that I read your story, it seems to me that the gracenote database
must implement some seriously powerful pattern matching technology.
Quite amazing, IMO.

In fact it's because the allocated disk number is seriously simply derived
from track numbers and lengths that it works.
Not so amazing really.

MrT.

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

"Paul Stamler" wrote in message
...
Some labels, including Pathe, did put out center-start records during the
78
era. Some radio transcriptions were done that way, too. And radio
transcriptions of long shows were sometimes done alternating center-start
and rim-start, so there would be no jarring change in sound quality as the
operator switched from disc to disc.

I can just imagine that operator sometimes got confused which way was next
then :-)
Even if they are well marked, it's surely a recipe for disaster.

MrT.

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

"Keith G" wrote


Compressed audio like 'Classic FM' on a car radio works very well,
actually....


Last night some solo piano pieces were particularly good on Carsick FM
FM - very acceptable.

(I couldn't compare with R3 because there was only some tiny little
voices muttering away throughout my entire journey...)

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

"Mr.T" MrT@home wrote in message
u...

"Paul Stamler" wrote in message
...
Some labels, including Pathe, did put out center-start records during
the
78
era. Some radio transcriptions were done that way, too. And radio
transcriptions of long shows were sometimes done alternating
center-start
and rim-start, so there would be no jarring change in sound quality
as the
operator switched from disc to disc.

I can just imagine that operator sometimes got confused which way was
next
then :-)
Even if they are well marked, it's surely a recipe for disaster.


Not as confusing as numbering 2-disc sets of LPs 1/4 and 2/3 for public
performance - where the playing order goes/went as follows:

Stack the albums with sides in this order from the top: 1/4, 3/2

Play Side 1, flip both discs together

Play Side 2, flip top disc only

Play Side 3, remove top disc

Play Side 4, remove disc, take bow, bring up house lights....

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

On Tue, 26 Jun 2007 11:43:01 +0100, "Keith G"
wrote:


"Mr.T" MrT@home wrote in message
. au...

"Paul Stamler" wrote in message
...
Some labels, including Pathe, did put out center-start records during
the
78
era. Some radio transcriptions were done that way, too. And radio
transcriptions of long shows were sometimes done alternating
center-start
and rim-start, so there would be no jarring change in sound quality
as the
operator switched from disc to disc.

I can just imagine that operator sometimes got confused which way was
next
then :-)
Even if they are well marked, it's surely a recipe for disaster.


Not as confusing as numbering 2-disc sets of LPs 1/4 and 2/3 for public
performance - where the playing order goes/went as follows:

Stack the albums with sides in this order from the top: 1/4, 3/2

Play Side 1, flip both discs together

Play Side 2, flip top disc only

Play Side 3, remove top disc

Play Side 4, remove disc, take bow, bring up house lights....




Or for preference, have two decks, then: Play 1, cue up 2. Seamless
handover at end of 1. etc etc....

Take even deeper bow.

d

--
Pearce Consulting
http://www.pearce.uk.com

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 

"dizzy" wrote in crossposted message
...
Marc Wielage wrote:

For some odd reason, there are people who foolishly convert MP3 files
to FLAC
(or APE), perhaps in the mistaken belief that it will make the signal
"sound"
better.

Sounds like those who buy "tubed" CD players, thinking that the one
tube stage at the player's output will somehow "fix" all the "harm"
done to the signal by all the solid-state stuff.



Why? Doesn't it?