Re: What are the physics of timber in music ?
- From: Richard Herring <junk@[127.0.0.1]>
- Date: Tue, 27 Mar 2007 17:11:25 +0100
In message <77mnd4-5d7.ln1@xxxxxxxxxxxxxxxx>, jimp@xxxxxxxxxxxxxxxxxxxx writes
Bob Cain <arcane@xxxxxxxxxxxxxxxxx> wrote:jimp@xxxxxxxxxxxxxxxxxxxx wrote:
> Andy Resnick <andy.resnick@xxxxxxxxxxx> wrote:
>
> <snip>
>
>> There is an audible difference between instruments amplified by tube
>> amplifiers and solid-state amplifiers: tube amps acentuate even
>> harmonics, while solid-state emphasize odd harmonics. Modeling amps try
>> to generate a specific tibre: Stratocaster + Marshall stack for example.
>
> That's an old wives tale.
No, it's "new" technology.
Depends on what you call "new". I've been hearing this stuff since
the '60s.
>
> First, I'd like to see the transfer function that accomplishes that.
Amp modelers are not linear.
Neither is any real world amplifier other than over a limited range.
Transfer function please.
> Second, 3.6 khz is the third harmonic of 1.2 khz and the second
> harmonic of 1.8 khz. How would an amplifier know, for any given
> 3.6 khz signal, which harmonic it was or even if it is a harmonic?
The nature and order of the non-linearity determine this.
Transfer function please.
> An amplifier with high distortion, i.e. a crappy design, will show
> differences in the harmonics GENERATED by the amplifier when you
> compare tubes to solid state.
>
> Tube and solid state amplifiers have different saturation curves
> which cause further distortions of signals with a large dynamic
> range.
This is modeled.
Meaningless.
Don't forget to use gold plated, oxygen free cable to hook up your
speakers.
With linear crystals. And mind you get the direction of the cable right.
Not _pure_ magic - there's a generous dose of snake oil as well:
After all, everyone knows that audio signals conform to the
physical laws and theorems until they become music, at which
point it is pure magic.
"Solid core speaker cables tend to cut off the leading and trailing edges of musical notes and produce a slightly lean bass sound"
"As a general rule, silver and silver plated conductors will perform better when used with Teflon® insulation and copper will perform with polyethylene."
"Speaker cables, like interconnects, require some running in time"
"Tight coiling may damage the cable and will also create undesirable inductive loops."
"If it becomes necessary to re-terminate a set of XYZ Cables, ensure that the signal flow direction is correct. Signal flow is identified by the XYZ logo. Ensure that the amplifier connects to the cable end closest to the ‘X’ of the XYZ logo and the speaker to the end closest the logo ‘Z’."
"After years of researching cable conductor materials, XXX discovered that each type of conductor has a specific electronic resonance signature, and resonates in a specific pattern. Our engineers found a way to compensate for this resonance so that it improves, rather than interferes with, signal quality."
"XXXx SUPER-MAX cables for super tweeters attain an unbelievably low impedance of 0.00_. With virtually no resistance, they permit perfect playback of the ultra-high frequencies put out by tweeters and super tweeters. Other cables can't carry or deliver the wide range of frequencies that super tweeters make possible."
All quotes from real websites.
--
Richard Herring
.
- Follow-Ups:
- References:
- What are the physics of timber in music ?
- From: augmented5th
- Re: What are the physics of timber in music ?
- From: Andy Resnick
- Re: What are the physics of timber in music ?
- From: jimp
- Re: What are the physics of timber in music ?
- From: Bob Cain
- Re: What are the physics of timber in music ?
- From: jimp
- What are the physics of timber in music ?
- Prev by Date: Re: physics demo
- Next by Date: Re: Proposal for a new DOUBLE MAGNET Stern Gerlach experiment.
- Previous by thread: Re: What are the physics of timber in music ?
- Next by thread: Re: What are the physics of timber in music ?
- Index(es):
Relevant Pages
|
