How does a cd produce sound ? It's Plastic.?

#1 09-05-2008, 07:07 AM

The surface is covered in a reflective coating, usually aluminum but
sometimes silver or gold.

http://mayihelpu08.blogspot.com/

#2 09-06-2008, 01:54 PM

It doesn't PRODUCE sounds, it STORES millions of digitized samples of
sounds which are reconstructed into continuous audio streams by signal
processing hardware.

#3 09-07-2008, 08:05 AM

ben@hometoolong.inv wrote:
> It doesn't PRODUCE sounds, it STORES millions of digitized samples of
> sounds which are reconstructed into continuous audio streams by signal
> processing hardware.

He's not looking for an answer. He's luring you to his blog, presumably
for profit.

Jerry
--
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

#4 09-08-2008, 09:34 AM

On Sep 7, 8:05 am, Jerry Avins <j...@ieee.org> wrote:
> b...@hometoolong.inv wrote:
> > It doesn't PRODUCE sounds, it STORES millions of digitized samples of
> > sounds which are reconstructed into continuous audio streams by signal
> > processing hardware.
>
> He's not looking for an answer. He's luring you to his blog, presumably
> for profit.
>
> Jerry
> --
> Engineering is the art of making what you want from things you can get.
> ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

How does a record / LP produce sound - it's just vinyl

Cheers,
Dave

#5 09-08-2008, 01:45 PM

Dave wrote:
> On Sep 7, 8:05 am, Jerry Avins <j...@ieee.org> wrote:
>> b...@hometoolong.inv wrote:
>>> It doesn't PRODUCE sounds, it STORES millions of digitized samples of
>>> sounds which are reconstructed into continuous audio streams by signal
>>> processing hardware.
>> He's not looking for an answer. He's luring you to his blog, presumably
>> for profit.
>>
>> Jerry
>> --
>> Engineering is the art of making what you want from things you can get.
>> ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
>
> How does a record / LP produce sound - it's just vinyl

How can sound be sent through a vacuum? No wonder vacuum tubes are a bit
mysterious!

Jerry
--
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

#6 09-08-2008, 02:03 PM

Jerry Avins wrote:
> Dave wrote:
>
>> On Sep 7, 8:05 am, Jerry Avins <j...@ieee.org> wrote:
>>
>>> b...@hometoolong.inv wrote:
>>>
>>>> It doesn't PRODUCE sounds, it STORES millions of digitized samples of
>>>> sounds which are reconstructed into continuous audio streams by signal
>>>> processing hardware.
>>>
>>> He's not looking for an answer. He's luring you to his blog, presumably
>>> for profit.
>>>
>>> Jerry
>>> --
>>> Engineering is the art of making what you want from things you can get.
>>> ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
>>
>>
>> How does a record / LP produce sound - it's just vinyl

>
>
> How can sound be sent through a vacuum? No wonder vacuum tubes are a bit
> mysterious!
>
> Jerry

Ahhh You just explained why they are called valves

#7 09-08-2008, 06:56 PM

On Sep 5, 7:07*am, javed044 <javed...@gmail.com> wrote:
> The surface is covered in a reflective coating, usually aluminum but
> sometimes silver or gold.
>
> http://mayihelpu08.blogspot.com/

Try playing it on your record player at 45 rpm. It'll make noise.

Dirk

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