192khz .. playback fidelity lower than 44.1khz?

[Tony Scharf]

Anther thought:  Does my mic even have the capacity to record a 48khz
signal which could be recorded by a 96khz converter?  I doubt it.

Be fun if it could, though.  I could record things and pitch them down
so I might have a clue what is making my dog loose it's mind every
morning at 4a.m.

Tony



On Tue, Mar 6, 2012 at 10:19 AM, Tony Hardie-Bick <tony at entity.net> 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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