Does aliasing ever occur in non-electronic analog audio devices?

Hi:

Does aliasing ever occur in non-electronic analog audio devices -- such
as pianos, violins, flutes, trombones?


Thanks,

Radium

Green Xenon [Radium] wrote:
> Hi:
>
> Does aliasing ever occur in non-electronic analog audio devices --
> such as pianos, violins, flutes, trombones?

Can you not think of somthing more important to obsess about ?

geoff

geoff wrote:
> Green Xenon [Radium] wrote:
>> Hi:
>>
>> Does aliasing ever occur in non-electronic analog audio devices --
>> such as pianos, violins, flutes, trombones?
>
> Can you not think of somthing more important to obsess about ?
>
> geoff
>
>


Please answer my question: "Does aliasing ever occur in non-electronic
analog audio devices -- such as pianos, violins, flutes, trombones?"

Green Xenon [Radium] wrote:
> geoff wrote:
>> Green Xenon [Radium] wrote:
>>> Hi:
>>>
>>> Does aliasing ever occur in non-electronic analog audio devices --
>>> such as pianos, violins, flutes, trombones?
>>
>> Can you not think of somthing more important to obsess about ?
>>
>> geoff
>>
>
>
> Please answer my question: "Does aliasing ever occur in non-electronic
> analog audio devices -- such as pianos, violins, flutes, trombones?"

All right here is a definitive answer. No.

In order for aliasing to happen a signal MUST be sampled. Aliasing is a
result of ambiguity in the shape of a signal. Any signal that is
continuous has no ambiguity, it is totally defined. A signal that is
sampled has gaps between the samples in which it is impossible to know
what the signal was doing; those gaps are the area of ambiguity that
permits aliasing. An alias is simply an alternative trajectory that will
fit the sampled points as well as any other.

d

Don Pearce said:

> Aliasing is a
> result of ambiguity in the shape of a signal. Any signal that is
> continuous has no ambiguity, it is totally defined. A signal that is
> sampled has gaps between the samples in which it is impossible to know
> what the signal was doing; those gaps are the area of ambiguity that
> permits aliasing. An alias is simply an alternative trajectory that will
> fit the sampled points as well as any other.
>
>
A superbly lucid and concise explanation, Don.

This dimwit is greatly enlightened, thank you.
--
Ken

UnsteadyKen wrote:
> Don Pearce said:
>
>> Aliasing is a
>> result of ambiguity in the shape of a signal. Any signal that is
>> continuous has no ambiguity, it is totally defined. A signal that is
>> sampled has gaps between the samples in which it is impossible to know
>> what the signal was doing; those gaps are the area of ambiguity that
>> permits aliasing. An alias is simply an alternative trajectory that will
>> fit the sampled points as well as any other.
>>
>>
> A superbly lucid and concise explanation, Don.
>
> This dimwit is greatly enlightened, thank you.

You're welcome. But the big question is whether our friend Radium gets
it too. I'm not holding my breath.

d

Don Pearce wrote:
> Green Xenon [Radium] wrote:
>> geoff wrote:
>>> Green Xenon [Radium] wrote:
>>>> Hi:
>>>>
>>>> Does aliasing ever occur in non-electronic analog audio devices --
>>>> such as pianos, violins, flutes, trombones?
>>>
>>> Can you not think of somthing more important to obsess about ?
>>>
>>> geoff
>>>
>>
>>
>> Please answer my question: "Does aliasing ever occur in non-electronic
>> analog audio devices -- such as pianos, violins, flutes, trombones?"
>
> All right here is a definitive answer. No.
>
> In order for aliasing to happen a signal MUST be sampled. Aliasing is a
> result of ambiguity in the shape of a signal. Any signal that is
> continuous has no ambiguity, it is totally defined. A signal that is
> sampled has gaps between the samples in which it is impossible to know
> what the signal was doing; those gaps are the area of ambiguity that
> permits aliasing. An alias is simply an alternative trajectory that will
> fit the sampled points as well as any other.
>
> d


Thank a bunch, Don. That was they type of answer I was looking for. Not
the garbage posted by the jerks who intentionally trivialize interesting
questions.