Re: Analog vs Digital- AgainOn Fri, 9 Nov 2007 15:18:12 -0800, Arny Krueger wrote
(in article <fh2prk02gik@news5.newsguy,com >):
> "Sonnova" <sonnova@audiosanatorium,com > wrote in message
> news:fh066v0e9h@news3.newsguy,com
>
>> I was just watching "Wired Science" on PBS. They just did
>> a "shoot-out" between digital and analog sound. I'm not
>> going to argue with the result, because they so
>> screwed-up the way that they explained what they were
>> doing to the TV audience as to make the entire thing
>> worthless.
>
> Ah, the shoe is on the other foot. Do you want to comment on the scientice
> behind this article:
>
> Wired Magazine article: http :// 301url,com /dbk
So. Vinyl is on the upswing. Lots of people like it. I enjoy a good LP
myself. At their best, they sound damn musical.
>> First they introduced a recording engineer who's Chicago
>> studio is all analog. He maintains that analog is better
>> than digital (without defining WHAT he means by
>> "digital").
>
> No doubt, he didn't explain what he meant by better, either!
>
>> Then they interviewed a recording engineer
>> that thought that digital was better than analog (again
>> without explaining WHAT kind of digital: 16/44.1, 24/96,
>> DSD, MP3 whatever).
>
> Probably 16/44.
>
>> Then they thoroughly confused the
>> issue by interchangeably using the terms MP3 and digital
>> recording- as if they were one and the same.
>
> MP3 is a subset of digital.
No clue?!! Really? They are not, however one and the same thing. All MP3
might be digital but not all digital is MP3. Not by a long shot. So, what's
your point? Further obfuscation?
>
>> Then they
>> picked two other recording engineers and two musicians to
>> listen to a cut from those same musicians' latest
>> recording. Sometimes they were listening to analog,
>> sometimes digital, and they held up paddles with the
>> words "digital" and "analog" written on them, to show
>> whenever they thought they heard a difference. The cut
>> they played was contiguous with no breaks to indicate
>> when or if the media had changed (how did they do THAT
>> without editing the two together onto the same
>> medium??!).
>
> Good question. Not hard to do in the digital domain, but I've done similar
> things with analog, and it takes a lot more skill and work.
That's kinda my point. Either way they are diluting the test to the point of
meaninglessness.
>> In the end, the two musicians chose correctly
>> 53% of the time, and the two recording engineers chose
>> correctly 55% of the time. In other words, essentially,
>> statistically, no better than blind chance. The
>> conclusion that the TV show producers came to was that
>> digital is indistinguishable from analog.
>
> Good digital and good analog are indistinguishable, so no surprise.
Again, not the point. The point is that this test, conducted as it was,
proved no point at all. The producers of the show claiming victory for
digital on the basis of this outcome is hollow and less than meaningless.
>
>> This "test" basically just confuses the issue. They say
>> that they were testing the widely held belief that analog
>> sounds better than digital.
>
> It's not a widely held belief.
Actually, it is. Lots of people believe it, that makes it "widely held". It
doesn't need to be a ubiquitous belief to be a widely held one.
>
>> But what they don't
>> differentiate between is PCM digital CD vs MP3.
>
> Good MP3 outperforms LP and analog tape.
Irrelevant, immaterial, and also mostly untrue. I've never heard an LP or a
good analog tape, for that matter make the kind of distorted mess that MP3s
can make of music. MP3s made at a high data rate can sound OK, but I'd rather
listen to an LP or especially a good recent CD of the same performance.
>> The impression that I was left with is that they were saying
>> that an analog master is statistically indistinguishable
>> from an MP3 digital simply because they made no effort to
>> differentiate between MP3 and RedBook PCM and never said
>> what the listening "panel" was actually listening too, or
>> the circumstances under which the "listening test" was
>> conducted. "Wired Science"? Bogus science is more like it.
>
> Compared to the article in Wired, it was really pretty good. ;-)
The article was someone's opinion a test is supposed to be unbiased.