[TriEmbed] This hertz to read - why is 32768 Hz the perfect frequency?

[Peter Soper]

It's what sales wrote. Reminds me of a harsh joke I picked up in the 70s (that has MANY exceptions): How do you tell the difference between a computer salesman and a car salesman? A car salesman knows when he/she is lying. (Hmm. ChatGPT will slot right in for the current century. But maybe "perceives" would be better.)
Pete

Mar 31, 2023 10:53:23 AM Rodney Radford via TriEmbed <triembed at triembed.org>:

> That is one of many issues with that page - I posted it here more as a laugh to those that know more than this page - not as a real page of information.
> 
> Which is why I said it "hertz my brain" and why I posted tongue in cheek that there were "a lot of new facts from this I have never seen in any other location before"  ;-)
> 
> Considering this is a vendor's page, i certainly would not want to order anything from this vendor if this is their level of understanding of what they are producing/selling.
> 
> On Fri, Mar 31, 2023 at 9:32 AM Brian via TriEmbed <triembed at triembed.org> wrote:
>> On 3/31/23 00:35, Tadd Torborg via TriEmbed wrote:
>>>  From the linked article
>>>
>>> *"The majority of digital audio equipment operates at a sample rate of
>>> 44.1 kHz or precisely 215 Hz”*
>>>
>> 
>> This is a patently false statement even if you add in the missing caret.
>> 
>> Yeah, so as others have pointed out, the real answer to the silly
>> headline question is because it makes a 16-bit counter overflow at
>> exactly 1 Hz, which is super useful for driving digital timepieces, and
>> apparently happens to be a comfortable resonating frequency for a quartz
>> crystal.
>> 
>> There's no clever relationship between 2^16 and 44.1 kHz, though.  44.1k
>> is not a nice power of two.  It comes, possibly, from NTSC TV scan
>> rates; see https://dsp.stackexchange.com/a/17702
>> 
>> I would question the use of the word "majority" in that sentence as
>> well.  I'd claim the vast majority of digital audio equipment is capable
>> of handling a variety of sampling rates.
>> 
>> -B (who dabbles in the guts of digital audio)
>> 
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