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What does this actually do?
- Thread starter Purité Audio
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OP
- Thread Starter
- #2
There is also a video, all results based upon subjective listening it would appear.
Keith
Keith
It apparently aligns your watt transients. And thank god there's someone out there who recognizes this problem and is doing something about it!
OP
- Thread Starter
- #4
It also helps with RT60 time!
Keith
Keith
It looks like it's simply a stand alone upsampling box. I'm not really sure what purpose it would server unless your DAC has wonky performance at particular sample rates.
OTOH, upsampling everything as much as possible seems to have become a popular 'tweak' so there's certainly a market for it. On the gripping hand, it costs £3495 which will buy you a pretty badass PC which can upsample to anything trivially or probably some sort of pro audio DSP box with a lot more useful features besides simple upsampling.
OTOH, upsampling everything as much as possible seems to have become a popular 'tweak' so there's certainly a market for it. On the gripping hand, it costs £3495 which will buy you a pretty badass PC which can upsample to anything trivially or probably some sort of pro audio DSP box with a lot more useful features besides simple upsampling.
Well ... clearly ...
some recent Chord DACs have dual-BNC digital inputs, which are useless unless one finds
a source with double-BNC digital outputs.
This is this source.
Watts chases ever longer oversampling filters. Now his best effort has grown too large to be
housed together with the DAC. Hence the M Scaler.
some recent Chord DACs have dual-BNC digital inputs, which are useless unless one finds
a source with double-BNC digital outputs.
This is this source.
Watts chases ever longer oversampling filters. Now his best effort has grown too large to be
housed together with the DAC. Hence the M Scaler.
He believes that if you wash your dishes 101 times, it will be cleaner than the previous 100 times....
solderdude
Grand Contributor
Perhaps someone capable of recording a 20kHz burst like the one in the video in 24/96 and 44.1/16 and record the analog out of a DAC reproducing it could easily show how 'big' this 'problem' is ?
Looks like a fun exercise for those with the proper tools to pull this off ?
Looks like a fun exercise for those with the proper tools to pull this off ?
so a bass transient isnt successfully captured within a 22kHz recording bandwidth? Really? 
So how does it recover the transient which was incorrectly recorded in the first place due to the limited sample rate with inadequate timing accuracy ?
So how does it recover the transient which was incorrectly recorded in the first place due to the limited sample rate with inadequate timing accuracy ?
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solderdude
Grand Contributor
perhaps they stole the MQA secrets ?
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https://www.stereophile.com/content/chord-electronics-dave-da-processor-measurements
You can use SoX to do the same before sending to any DAC, a cheap i3 is good enough. Notice that the spikes in my 19kHz signal already present before upsampling, they are not caused by SoX itself.
You can use SoX to do the same before sending to any DAC, a cheap i3 is good enough. Notice that the spikes in my 19kHz signal already present before upsampling, they are not caused by SoX itself.
A slight aside, thinking out loud so dont throw rocks. Isnt a single sample impulse by definition an illegal signal? Should we not only ever test with a signal less than 1/2 sample rate?
Yes and yes.
maxxevv
Major Contributor
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- Apr 12, 2018
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I would suggest before pre-judging to ask for an audition of the Chord DAVE with the BluMkII m-scaler.
Had the opportunity to try that with the Focal Utopia at the local distributor, it was quite the experience using a redbook CD of the Blu. Heard the Utopia on another setup at the same session, the listening experience was markedly different.
Of course, there are too many variables in that to ascertain where the 'euphonic difference' came from but its a pretty impressive sounding piece of kit.
Had the opportunity to try that with the Focal Utopia at the local distributor, it was quite the experience using a redbook CD of the Blu. Heard the Utopia on another setup at the same session, the listening experience was markedly different.
Of course, there are too many variables in that to ascertain where the 'euphonic difference' came from but its a pretty impressive sounding piece of kit.
Good luck finding a "local distributor" who will set up a valid, level-matched blind comparison.
I can't imagine why this would be the case.
I can't imagine why this would be the case.
The purpose of showing impulse response is to visualize filter characteristics therefore whether it is legal or not is irrelevant. However people need to pay a price for a super steep filter since it will generate higher intersample peaks.
Also, illegal signals in music can be an art form.
OP
- Thread Starter
- #19
Are there any benefits whatsoever in the million taps?
I notice that his ‘testing’ appears to be completely subjective.
Keith
I notice that his ‘testing’ appears to be completely subjective.
Keith
I appreciate that, what I am leading to is what is the real world behavior with band limited signals as we would have from any normal ADC?
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