Re: Competent adjustment of loudness on a sound card
What exactly is not measured? Dynamic range?
In electronics it is accepted to name dynamic range relation RMS of a maks-signal of the form a sine, not subject to a clip to level of stationary noise. - SNR. And it does not concern numeral resolution. Analog circuits have congenital property to be linear, and to remain such even for signals below noise level. Numeral - demand higher digit capacity and application at its reduction for saving of the given properties.
Here it (example)... If it is a question the friend the detail information is necessary more THAT it would be desirable to measure and AS.
This example does not show dynamic range (which it is measured much easier), internal resolution of mathematics of the chip - which even for 24 bits lies below schedule lower bound, and demands application of special signals for display (in particular not-60dB, and a range in low bit, and also frequency should be such that on the durable samplings of frequency of products of distortions did not departure, spreading the schedule). Good show resolution more than 24 bits, even being "24 bit".
About is that there is unique true algorithm, no them a lot of different under different tasks.
However there are correctness conditions. And "the different task" is only one - noise a little (16) - bit record not heard. For all other applications modern (24) - TPDF (a range 2LSB) it is unique true and it - the elementary correct. Therefore as questions of audibility of noise, and accordingly noise shaping it is not necessary.
. And strictly speaking - noise shaping is not in itself, and additional "forming" a spectrum of noise by back coupling and all uses inside the same TPDF.