192khz .. playback fidelity lower than 44.1khz?

[Tony Hardie-Bick]

from the article:

"Production increasingly uses 32 bit float, both because it's very convenient on 
modern processors, and because it completely eliminates the possibility of 
accidental clipping at any point going undiscovered and ruining a mix."

the author's obvious lack of knowledge on this and a few other points tends to 
undermine the credibility of the article.

unfortunate, cos I think it's true that ultrasonics can cause problems for the 
in and out analogue circuits/amps/transducers at either end of high sample rate 
systems, if they are not carefully designed.

Tony (HB)

On 06/03/12 16:19, Tony Hardie-Bick wrote:
> On 06/03/12 15:29, Andrew Robinson wrote:
>> I was talking about this with a studio owner a few years back. After a
>> heavy session on A/B testing the first few 24/96 converters on the
>> market, he'd come to the opinion that after 20 years of practice, the
>> industry had got very good at making good sounding 16/44.1 kit, and
>> that the 24/96 stuff needed a good few years to get up to speed. He
>> could definitely tell the difference, but he didn't like it, comparing
>> it to the awful high-end heavy mastering on the earliest CDs.
>
> When processing audio samples and doing something with them (sample rate
> conversion for example, or band-limited synthesis, or filtering) a much higher
> sample rate can make it easier to compute the result.
>
> This is why stomp boxes running at 96kHz generally sound better than those
> running at 48kHz.
>
> Also, 24 bits is way more than necessary for playback, but during recording, one
> doesn't know in advance what the maximum signal level will be, so, you can hope
> to be lucky, or tolerate some overloads, or play safe and deal with the
> compromise in bit depth. In the latter situation, the more precision your AD
> gives you (true precision, not just the number of bits it chucks out), the more
> thankful you're gonna be at the end of the recording session.
>
> As far as playback is concerned, it's true that the presence of ultrasonics can
> be a problem. Looking at the data sheets for AD and DA converters running at
> these frequencies, there are suprisingly relaxed parameters for pre and post
> conversion filtering, so IMO this is likely a significant cause of the problem.
>
> Tony (HB)
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