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Output Modes (ASIO, Kernel Streaming, WASAPI)

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teodorom:

--- Quote ---"Always resample 44.1khz <->48khz"
--- End quote ---
No, sorry about that. The options are the default ones. Could it be a bug of the version (2.11 Beta1) I'm using ? It would be strange, because ASIO4All, in the notification area, tells me the correct sampling rate (e.g. in the form "ASIO4All v2 Media Center 18 - 2048 Samples @44100 Hz") .

--- Quote ---"Kernel streaming or ASIO4All will not (generally) be an improvement in performance or sound quality over WASAPI"
--- End quote ---
When playing a FLAC I've got ripping a CD I'm quite sure that

* I'm unable to distinguish among Kernel Streaming and ASIO4All
* Kernel Streaming and ASIO4All are louder and more "3D" than WASAPITomorrow I shall try to do some blind tests (if my wife wants to spend the time to do that), because I cannot exclude that these are mathematical and/or psychological artifacts.

stewart_pk:

--- Quote from: teodorom on May 01, 2013, 12:47:45 pm ---No, sorry about that. The options are the default ones. Could it be a bug of the version (2.11 Beta1) I'm using ? It would be strange, because ASIO4All, in the notification area, tells me the correct sampling rate (e.g. in the form "ASIO4All v2 Media Center 18 - 2048 Samples @44100 Hz") .When playing a FLAC I've got ripping a CD I'm quite sure that

* I'm unable to distinguish among Kernel Streaming and ASIO4All
* Kernel Streaming and ASIO4All are louder and more "3D" than WASAPITomorrow I shall try to do some blind tests (if my wife wants to spend the time to do that), because I cannot exclude that these are mathematical and/or psychological artifacts.


--- End quote ---

Yes there's a bug in 2.11 Beta1. You should use 2.10 if you're going to use ASIO4ALL or use the 44Khz<--->48Khz switch in reverse.

All of the three Output Modes will have exactly the same volume if all are configured correctly.

kstuart:
Stewart is right.  In 2.11Beta1, you should actually check the 44.1<->48 checkbox to get it to NOT do the conversion.

From the product's Forum:

R32nj
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   Problem with 44/48 resample button in 2.11 Beta
« Thread Started on Feb 10, 2012, 8:24pm »   
--- Quote ---It looks to me like the "Always Resamle 44.1khz to 49khz" button is behaving backwards in the V2.11 Beta release. With the button OFF my DAC is getting a 48K signal and with it ON I get 44.1K.
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Minuet
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   Re: Problem with 44/48 resample button in 2.11 Bet
« Reply #1 on Feb 23, 2012, 3:01pm »   
--- Quote ---I too have noticed that the action of this check box has a 'reversed role' it appears.
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Michael Tippach
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   Re: Problem with 44/48 resample button in 2.11 Bet
« Reply #2 on Feb 27, 2012, 3:42pm »   
--- Quote ---Confirmed!

Will be fixed in the next release.

--- End quote ---

--- End quote ---

--- End quote ---

teodorom:
Thank you !
So, it was a bug (and I have to admit that I was tempted to do that check, but it was too late and I feared I could disturb someone with my tests).
So, I'm not deaf !
I'm now convinced that ASIO4All doesn't introduce unwanted "mathematical" artifacts, and that when I hear more "3D" it's not because of a psychological artifact (the "louder" sound could be, on the contrary, a psychological consequence of the "3D").
So, please listen !
Mathematics and Physics are important in HiFi (I guess so because I'm a Theoretical Physicist), but this discussion reminds me "cables".
As the Physics is concerned cables (apart the trivial ones) should "sound" all identical, differences in parameters being so small that they should be non audible.
On the contrary differences are audible. Not so much to convince me to buy cables costing > 1000$. My cables are low priced , but when I switch I hear the difference

HiFiTubes:
Hi

I'm also curious why WASAPI is limited to 24bit? ASIO allows full 32float or integer but WASAPI does not? Cannot?

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