'Bitperfect' CODEC settings

[Bugsy]

Hi,
In striving for a 'bitperfect' recording from an Internet stream, the Codecs setting config are a bit of a mystery to me.

When I look at a lossless codec, such as WAV or FLAC, it seems to me that I should pick a Sample Rate and Bits per Sample that matches, as closely as possible, the input streams values.
(For example, if input is 44,100/24 then I set the recording to that as well.)

However, at the bottom of the Codecs settings page is 'System Format' and 'Apply settings'.
(In my case, it shows 192 kHz, but it's whatever I sit it to in Windows.)

This is where my confusion sets in...
===> Is the i-Sound Recording taken from the Input or Output stream? <====

I've assumed it is taken from the Input stream (so above example would be the right approach) but then it raises the question of what is the purpose of displaying the 'System Format'?
(Is it just for information only?)

If the Recording is taken off the Output stream (that is, as per the 'System Format') then to achieve a 'bitperfect' recording, I should be setting my 'System Format' to match the Input values as well.

Hope that makes sense.

[support]

To avoid claims from copyright holders, our software captures the stream from the sound card, so we specify "what I hear is what I get" everywhere.
Most high-definition audio recordings are distributed in 96/24 format and this does not cause problems with recording settings.

[Bugsy]

Thanks for that...

After thinking about it for a while it seems that the 'recording' IS happening from the output side.
And I should set BOTH my output Codec (eg. WAV, FLAC) AND local audio output (192 kHz, in above example),
to match the input stream as closely as possible (or, at least, a multiple frequency of).