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Best speaker cable specs
- Thread starter jensgk
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It is a transient signal, random in nature.
A signal that in increases 30 dB in 12 uS is a transient, or more precisely, transient in nature.
In acoustics and audio, a transient is a high amplitude, short-duration sound at the beginning of a waveform that occurs in phenomena such as musical sounds, noises or speech.
Not at that time scale. Propagation time down a typical speaker wire might be 10-15 nanosecond. Three orders of magnitude.
DCR. These are slowly changing signals. It is not complicated no matter how much people want it to be.
The V (or I or P) signal waveform is transient.
It is independent of propagation velocity.
We do not need Rdc, just R
It is the same whether AC or DC
Z depends on f, R does not.
In acoustics and audio, a transient is a high amplitude, short-duration sound at the beginning of a waveform that occurs in phenomena such as musical sounds, noises or speech.
So it's context which is at the root of your misuse of the term.
Not misused, misunderstood on your part.
Does not matter what the signal is, power or music, music is power.
What Are Transients in Music & Why Are They Important? (Explained)
In the world of audio engineering & music production, there are a lot of terminologies you need to understand. While your ears are the most important
www.whippedcreamsounds.com
In this article, we’re going to explain what transients are, why they’re important for mixing, and how you can use them to your advantage to create better, punchier mixes, or smooth out instruments.
We propose an iterative algorithm to detect transient segments in audio signals. Short time Fourier transform(STFT) is used to detect rapid local changes in the audio signal. T
15 nanosecond. Your signal is moving a thousand times slower. In that context, it is NOT a transient.
These guys disagree
You are confusing propagation velocity with
d(signal)/dt
The length of the waveform has nothing to do with it. Only the period.
We propose an iterative algorithm to detect transient segments in audio signals. Short time Fourier transform(STFT) is used to detect rapid local changes in the audio signal.
But really we are not talking "audio" , or "sound", or "music" we are talking electrical signals which just happen to represent audio events which is much different, and is the realm of EE, not audio engineering or acoustics, or music. YOU are correct. YOU need to understand the terminology and with that comes subtlety which you are lacking.
It is interesting to look at how IEEE1159-2019 defines transients. Since anything within the audible band, would be using this definition loosely, a "Power Frequency", then by this definition, a transient would at least need to exceed those frequencies.
See, I can be pedantic too
It is interesting to look at how IEEE1159-2019 defines transients. Since anything within the audible band, would be using this definition loosely, a "Power Frequency", then by this definition, a transient would at least need to exceed those frequencies.
See, I can be pedantic too
Actually the IEEE dictionary defines a dozen types.
They all involve large signal magnitude increase over a short time interval aboce the average level.
Like a musical signal.
The S/N ratio is a de factor transient parameter.
They understand the context and aren't trying to make a simple issue complex.
Like you? So it IS transient in nature?
You think there is a difference in a power transmission signal and music? Other than f and magnitude?
We have heard this in this thread
Music is not transient in nature
R is frequency dependent
Strange, when I listen I have the following.
No music, silent passages 30 dBA
Average 75 dBA
Peak 100 dBZ
Average V 1.3 V
No music 0
Peak 23 V, 30x average or SS
strange, but true
You get it
And, I know you know this, R is the same at 20 Hz or 20 kHz, linear
But X = 2 Pi f L is not, non-linear
Context. You want the term to mean the same thing with different time scales, but it doesn't.
Putting aside the use of the single wire formula instead of twin pair, you nicely showed that the cable impedance is negligible compared to the load. At frequencies any of us can actually hear, it's even smaller.
DCR. Not complicated.
@Lambda my cable is 0.2uH / meter and 0.015 ohm approx. At 20Khz, the reactance is 0.025, so impedance doubles. However, that a smaller effect than the load swinging from 3 ohms to 12-15 ohms from 20Hz - 2Khz when coupled with the 0.015 resistance that dominates in the cable at those frequencies.
w.r.t. transmission lines and transients, THIS is the formula for characteristics impedance --
And it takes into account the "frequency" of the transient and you will note, it does not give a care w.r.t. absolute amplitude.
As @SIY points out, this is pedantic and meaningless, as at audio frequencies, the speaker impedance is all over the maps, I will point out the cable impedance is all over the map (and is very high at low frequencies), and when coupled with typical cable length, a lumped model is sufficient for about >>10 orders of magnitude voltage accuracy (>200db) or for less than the thermal noise of any possible circuit.
w.r.t. transmission lines and transients, THIS is the formula for characteristics impedance --
And it takes into account the "frequency" of the transient and you will note, it does not give a care w.r.t. absolute amplitude.
As @SIY points out, this is pedantic and meaningless, as at audio frequencies, the speaker impedance is all over the maps, I will point out the cable impedance is all over the map (and is very high at low frequencies), and when coupled with typical cable length, a lumped model is sufficient for about >>10 orders of magnitude voltage accuracy (>200db) or for less than the thermal noise of any possible circuit.
Feyire
Active Member
For the purpose of an electrical conductor, copper has a very low electrical resistivity, combined with a very high electrical conductivity. Therefore it has an excellent price/performance ratio when used as a speaker wire. Silver is not nearly as affordable and no other currently known metal comes close to the combined characteristics of copper for this purpose.
Furthermore, in order to maximise the benefit of copper's characteristics, you do not want to pollute an otherwise pure copper conductor with additional materials having inferior characteristics, such as an alloy like brass. You also need to pay attention to the gold plating often applied over a copper conductor as a layer of protection against oxidisation, because in most cases, the gold plating is combined with a ferromagnetic material, such as nickel, in order to strengthen the durability of this coating layer. Note that you can find suppliers with products offering nickel-free gold plating (i.e. non-ferromagnetic).
See below why you should seek to avoid ferromagnetic materials in locations where an amplifier level signal is passing through.
Ferromagnetic materials have a non-linear relationship between the current passing through them and the magnetic flux it creates, and this induces voltages that add distortion to the signal.
Would you please stop lying.
No one said R is frequency dependent. That is an out and out lie and I am sure I and others do not appreciate it.
As well, it was not said that "Music" is not transient in nature. In fact I called you out on this and said we are not talking about music, we are talking about electrical signals that represent audio/music and within the framework of a discussion of electrical signals, and transmissions lines, at the lengths we are talking about, the electrical signals representing music are not transients.
CONTEXT
When you are attempting to use a definition of transient that practically everyone else in your profession would disagree with, then they are not the problem, you are, because it is just that, a definition, a convention, and conventions have context, and you ignoring context for the sake of argument makes you wrong, not everyone else.
