Re: [ARSCLIST] 2GB limit for audio file formats

[Goran Finnberg <mastering@xxxxxxxxx>]

Eric Jacobs:

> he higher sampling rate does not remove any noise at all.
> In fact it captures MORE noise - noise that you cannot hear
> with your ears, but that a well-designed DSP algorithm CAN
> "hear".

Once gain this may or may not be true depending on how the algorithm
does the actual click detection.


> Because the DSP algorithm can hear the noise better, it can
> also remove the noise better.  The NOISE signal does not
> look like an AUDIO signal when captured correctly.

So does in fact a Shure M44 and 44.1 within its bandwith limitation.

Because
> the noise signal does not look like the audio signal, you
> can remove the noise better without affecting the audio
> signal.

You continously join together two processes into one argument that does
in fact use two entirely different algorithms.

1/ Click detection
2/ Click removal.

They´re NOT the same.

1/ The bandwith you get from wideband transducers and >96 kHz sampling
can possibly, depending on the click detect algorithm, help differenting
between clicks and music.

2/ This excess bandwith has nothing whatsoever to do with the click
removal process that uses the audio before and after the actual click to
resynthesise the audio in place of the actual click.

> If you use lower sampling rates and transducers (cartridges)
> with 20 kHz bandwidth, the NOISE and AUDIO signals look
> almost the same -

Not so in fact. The phase response is what decides this. Unless this is
screwed up royally there will be little difference between them.

> so as you try to remove more noise, you
> also end up removing some signal at the same time.

Only if the click detection algorithm made a wrong decision.

This may not having anything to do with bandwith.



--
Best,

Goran Finnberg
The Mastering Room AB
Goteborg
Sweden

E-mail: mastering@xxxxxxxxx

Learn from the mistakes of others, you can never live long enough to
make them all yourself.    -   John Luther