The Audiophile Thread

[rcarlberg]

I did a google image search and found a little bigger copy

Ah yes, good idea. Big-ass version of the photo can be found here. From this we can identify Miles Davis "The Original Quintet (First Recording)," Paul Horn "Profile of a Jazz Musician," Lead Belly "Memorial, Vol.3" and others if I work at it.

[Dave (in MA)]

What's the audiophile's take on having your turntable in your fireplace?

[3LockBox]

^ It looks like it might be one of those flip phono models

[Garyhead]

What's the audiophile's take on having your turntable in your fireplace?

A “warm” sound typical of Analog!

[Dave (in MA)]

Dave's audio tip:
Always make sure to wipe your feet on the doormat before stepping on your vinyl.

I spotted Crown of Creation

It's the Atomic Mr. Basie, you dummy.

[rcarlberg]

It's the Atomic Mr. Basie, you dummy.

Cripes, you're right.

"Atomic Mr. Basie" = 1958
"Crown of Creation" = 1968
McQueen photo = 1963

[Zeuhlmate]

You'll have to explain someday how frequencies WE CAN'T HEAR(!) could make a difference in our experience of music.

Perhaps.
Imagine a pond. throw a stone, it makes ripples. Throw another, bigger, or different or... it makes other ripples. These ripples will cross and makes synergy or counterditto, and new ripples emerge, bigger smaller, etc..
Imagine this takes place above your hearing ability, but creates ripples in the lower spectrum you can hear or feel.

[rcarlberg]

Perhaps.
Imagine a pond. throw a stone, it makes ripples. Throw another, bigger, or different or... it makes other ripples. These ripples will cross and makes synergy or counterditto, and new ripples emerge, bigger smaller, etc..
Imagine this takes place above your hearing ability, but creates ripples in the lower spectrum you can hear or feel.

Many years ago, when I managed the service department of an audio company, one of my engineers designed a new preamp section for our tape player. The first run of circuit boards we had made all sounded terrible. It wasn't until we put the output on an oscilloscope that we figured out why : the main amplification stage was oscillating hypersonically, like at 30,000 or 40,000 cycles. We just needed to add a capacitor across the terminals to quelch it, and they worked fine.

[snowwomn]

I find that I like vinyl better than digital music more and more these days. The tech that exists today for a good turntable and sound is incredible nowadays. I agree with this person when they say "You need digital music. You should want vinyl records."
https://musicology-101.com/?p=1153

[Firth]

I find that I like vinyl better than digital music more and more these days. The tech that exists today for a good turntable and sound is incredible nowadays. I agree with this person when they say "You need digital music. You should want vinyl records."
https://musicology-101.com/?p=1153

If most vinyl starts with a digital master which is compressed to fit in the limited dynamic range of records, how can that be better. Granted that there is a lot of shitty digital mastering.

[Firth]

Many years ago, when I managed the service department of an audio company, one of my engineers designed a new preamp section for our tape player. The first run of circuit boards we had made all sounded terrible. It wasn't until we put the output on an oscilloscope that we figured out why : the main amplification stage was oscillating hypersonically, like at 30,000 or 40,000 cycles. We just needed to add a capacitor across the terminals to quelch it, and they worked fine.

In 77, I worked as a designer and next to me was a senior consultant who wrote the ic op amp cookbook. We would not have designed something with oscillations. The most interesting design I looked at was high power MOSFETs which were new. Today these devices are incorporated in class D architectures (including receivers) that need to amplify and drive 4 ohm speakers. Hafler was a follow on to Dynaco, and they designed power MOSFET amps, sometime referred to solid state tubes.

[Zeuhlmate]

If most vinyl starts with a digital master which is compressed to fit in the limited dynamic range of records, how can that be better. Granted that there is a lot of shitty digital mastering.

But a digital mastering might not be limited to max 20 khz like the CD is. DAT tapes were digital, but the limit was 100 khz.

[Zeuhlmate]

Many years ago, when I managed the service department of an audio company, one of my engineers designed a new preamp section for our tape player. The first run of circuit boards we had made all sounded terrible. It wasn't until we put the output on an oscilloscope that we figured out why : the main amplification stage was oscillating hypersonically, like at 30,000 or 40,000 cycles. We just needed to add a capacitor across the terminals to quelch it, and they worked fine.

But - there you go ?
The sounds you heard were unwanted, but...

[hFx]

But a digital mastering might not be limited to max 20 khz like the CD is. DAT tapes were digital, but the limit was 100 khz.

??

16 bit, 32, 44.1 or 48 khz

https://en.wikipedia.org/wiki/Digital_Audio_Tape

[hFx]

Maybe trust your ears bot not your mind...

Paper on Illusory Sound Texture

[ledsox]

Dave's audio tip:
Always make sure to wipe your feet on the doormat before stepping on your vinyl.

I spotted Crown of Creation, In A Silent Way, Sketches, At Jazz Inn, and I could swear I recognize the sleeve just past the LP lying in the foreground.

Pretty sure that's 'The Atomic Mr Basie' not Crown... and Kind of Blue not Silent Way.

edit- oops...missed a few posts.

[rcarlberg]

But - there you go ?
The sounds you heard were unwanted, but...

Ultrasonics affected the audible frequencies, but not in a good way. I have trouble imagining an alternative.

[Jerjo]

I can't get over that giant bowl of cigarette packs on the coffee table in that shot of Sinatra.

[rcarlberg]

Is that what they were? I was trying to figure it out.

[hFx]

Ultrasonics affected the audible frequencies, but not in a good way. I have trouble imagining an alternative.

Strong self oscillating signals affect the linearity of the circuit, as the audible range signals are superimposed on the ultrasonic oscillation.

[progmatist]

If most vinyl starts with a digital master which is compressed to fit in the limited dynamic range of records, how can that be better. Granted that there is a lot of shitty digital mastering.

Actually, the opposite is true. Music on digital media more often than not is brickwalled to death. If vinyl records were brickwalled, they'd be unplayable. It would be like running one's stylus over a saw blade.

Apart from a Shostakovich Symphony, there are very few examples of music utilizing the full dynamic range of a CD.

[progmatist]

Ultrasonics affected the audible frequencies, but not in a good way. I have trouble imagining an alternative.

Ultrasonic tape biasing plays a major role in making magnetic tape recording possible.

[progmatist]

What's the audiophile's take on having your turntable in your fireplace?

I keep my CD recorder in the fireplace, for burning CDs.

[rcarlberg]

Apart from a Shostakovich Symphony, there are very few examples of music utilizing the full dynamic range of a CD.

Which one? I might need to buy me this

I have some Copland that pushes the DR limit. I have Flim & The BBs. I have three test CDs called "Sonic Booms" by Brad S. Miller. John Greenland's "Soft Robot" comes pretty close. But I take your question.

[hFx]

Ultrasonic tape biasing plays a major role in making magnetic tape recording possible.

...but still in the linear range of the circuits. Self oscillations usually max out.