DimitryZ
pfm Member
That's the pattern in the English speaking world.More pages of guff, and yet the comments I’ve read by MQA users were typically very positive. Funny that
That's the pattern in the English speaking world.More pages of guff, and yet the comments I’ve read by MQA users were typically very positive. Funny that
Similar topic: aren't there several DACs out there where it is possible to switch the characteristic of the brickwall filter?
embracing Dolby Atmos, which is perceptually lossy and often plain bad when downmixed to two channels.
For a truly elegant target tracking system, ...
A given all pass filter convolved with its time-reversed all-pass filter results in a Dirac pulse. Thus a removed pre-ringing can be recovered.
Similar topic: aren't there several DACs out there where it is possible to switch the characteristic of the brickwall filter?
All modern DACs have many variable filters that can be switched. Contrary to popular belief, many are audible, but not dramatically so.
To the extent people use these filter choices at all, it typically involves listening and choosing one, then leaving it alone.It would not surprise me if some find them audible when others don't. One consequence is often a change in the peak/mean ratio of waveforms. That then gets fed to non-linear loudspeakers...
Another consequence is that the 'short' filters tend to generate anharmonic distortion products that aren't in the source material. Also potentially audible in some cases.
So it may be a matter of "Would you like salt on that?"
More pages of guff, and yet the comments I’ve read by MQA users were typically very positive. Funny that
To the extent people use these filter choices at all, it typically involves listening and choosing one, then leaving it alone.
Seems like a normal part of the hobby.
Actually, it's absolutely under your control, if you use software unfolding - available with Tidal, Roon and others - and use an MQA-unaware DAC.It has been. But MQA may mean you can't do it for MQA material because you can't alter the MQA files without risking losing the MQA being decoded. (1) Do any MQA DACs allow you to alter the replay filter when replaying MQA? The Explorer 2 doesn't seem to show any sign of this.
(1) Unless MQA release or allow someone under payment to do it. Do they?
Hahahahahah!Interesting. Can you point me at their documentation for that?
This works automatically on IOS and Android platforms for my two MQA applications - Tidal and Nugs. In Windows, there are three settings for the MQA decoding in Tidal, one of which performs the software unfold, instead of leaving that to the DAC. This is described in Tidal's documentation. Roon and Audiorvana would have similar or more advanced settings, which should be described in their documentation.Interesting. Can you point me at their documentation for that?
I had assumed the MQA file was subject to the “deblurring”/ dispersion effect when the 88/96khz Fs version of the track was created prior to being folded up.I'll have a look at the links. My main question wrt the Roon/Tidal software decoding is if it outputs a digital stream that has the artifacts and dispersion so that any later choice of DAC filter simply convolves on top of that. i.e. you can't get the output without the dispersion or artifacts which show up with, say, just using the Explorer 2.
The implication of MQA claiming that their output is "audibly the same as the 'master'" implies you get out a stream with the dispersion, etc. i.e. if they thought the dispersion has no audible effect, it seems odd that they add it!
It also makes me wonder if perhaps DAC makers can include a 'remove MQA dispersion' mode?
I believe there is no analog filter. The all-pass filter must be time-reversed. A FIR filter can do this. But then we are back in digital domain.Hmmm... maybe we can work out an analogue filter that undoes the dispersion. Or find a speaker that does it.
A number of them do, though typically at a higher price point than the one you are using.I'll have a look at the links. My main question wrt the Roon/Tidal software decoding is if it outputs a digital stream that has the artifacts and dispersion so that any later choice of DAC filter simply convolves on top of that. i.e. you can't get the output without the dispersion or artifacts which show up with, say, just using the Explorer 2.
The implication of MQA claiming that their output is "audibly the same as the 'master'" implies you get out a stream with the dispersion, etc. i.e. if they thought the dispersion has no audible effect, it seems odd that they add it!
It also makes me wonder if perhaps DAC makers can include a 'remove MQA dispersion' mode?