[ProAudio] The High-Resolution Challenge

[James Johnston]

As Dick said, it's not too likely to get ultrasonic interactions until you
get over the 120dB SPL level. At 140, you can get substantial interactions.

I can't see that happening with most pipe organs, at least.

Now tweeters, yeah, they do all sorts of "stuff", and please give up on the
"purely linear" thoughts, indeed.

On Fri, Feb 14, 2020 at 12:48 PM Dick Pierce via ProAudio <
proaudio at bach.pgm.com> wrote:

> On 2/14/2020 3:26 PM, Mike via ProAudio wrote:
>  > There was some >20 kHz energy coming from the pipes, and
>  > when playing multiple pipes, those ultrasonic frequencies
>  > combined to produce frequencies in the audible range. So
>  > it's a way of getting what you'd hear if you played two pipes at once.
>
> The mere existence of multiple ultrasonic frequencies, acoustically
> at any rate, does not mean that frequencies in the audible range
> are produced. In fact, without some non-linearity somewhere,
> you're guaranteed that multiple ultrasonic frequencies WILL NOT
> result in producing frequencies in the audible range.
>
> Whatever the real story, in this case, might be, there's much
> more to it than related here.
>
> --
> +---------------------+
> |     Dick Pierce     |
> |    cartchunk.org    |
> +---------------------+
>
> _______________________________________________
> ProAudio mailing list
> ProAudio at bach.pgm.com
> http://bach.pgm.com/mailman/listinfo/proaudio
>


-- 
James D. (jj) Johnston
Independent Audio and Electroacoustics Consultant
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://bach.pgm.com/pipermail/proaudio/attachments/20200214/2c44c1fa/attachment.html>