Re: Any impressions on the EMM Labs CDSA-SE CD/SACD player?On Fri, 16 Nov 2007 16:00:42 -0800, Arny Krueger wrote
(in article <fhlava01l2k@news4.newsguy,com >):
> "Sonnova" <sonnova@audiosanatorium,com > wrote in message
> news:fhj2f50mno@news3.newsguy,com
>> On Thu, 15 Nov 2007 15:30:09 -0800, Arny Krueger wrote
>> (in article <fhikq102jq5@news5.newsguy,com >):
>>
>>> "Sonnova" <sonnova@audiosanatorium,com > wrote in message
>>> news:fhge8802u1f@news4.newsguy,com
>>>> On Wed, 14 Nov 2007 15:11:45 -0800, Arny Krueger wrote
>>>> (in article <fhfvbh02cmp@news4.newsguy,com >):
>>>>
>>>>> "DJ" <wenwaudio@qwest,net > wrote in message
>>>>> news:fhddu602t7f@news2.newsguy,com
>>>>>> It's supposed to upsample CDs to SACD. Has anyone
>>>>>> heard about this player, and better yet, auditioned
>>>>>> or own one?
>>>>>>
>>>>>> Reference -
>>>>>> http :// www .emmlabs,com /html/audio/cdsa/cdsa.html
>>>>>>
>>>>>
>>>>> The basic premise is ludicrously flawed. No mechanical
>>>>> or electrical process can accurately recreate music
>>>>> that isn't already present in the recording.
>>>>
>>>> True, but oversampling does tend to make Redbook CDs
>>>> sound better.
>>>
>>> ....Right up until you level-match, time-synch, use a
>>> really good resampler, and start trying to control bias.
>>>
>>>> Perhaps its the removal of that brick-wall
>>>> filter at 22.05 KHz that makes things sound "better",
>>>
>>> Similar means of comparison shows that a brick wall as
>>> low as 16 KHz can be difficult or impossible to hear.
>>>
>>> http :// www .pcabx,com /technical/sample_rates/index.htm
>>>
>>>> I don't know.
>>>
>>> Nobody knows because it never seems to actually happen.
>>>
>>>> But something sure sounds better.
>>>
>>> Interesting that removing trivial audible cues and the
>>> power of suggestion has such predictable effects.
>>>
>>>> I've
>>>> performed double-blind tests with my friends, and
>>>> everyone preferred the oversampling on my outboard D/A
>>>> converter turned on rather than turned off, could dteect
>>>> the difference almost every time and I concur.
>>>
>>> Just addressing bias isn't enough. The level-match and
>>> time-synch thing is very important.
>>>
>>>> I also
>>>> find that
>>>> 44.1KHz digital upsampled to 88.2 KHz sounds better than
>>>> upsampling it to 96 KHz, but DAT (48 KHz digital) sounds
>>>> better upsampled to 96 KHz than it does upsampled to
>>>> 88.2 KHz.
>>>
>>> If there's an audible effect, then it speaks to the
>>> quality of the resampling. I've definately seen
>>> resampling gone wrong. Resampling down usuallly
>>> involves two stages of low-pass filtering, and that
>>> makes two places where audio products can and have gone
>>> wrong. Upsampling involves at least one stage of
>>> low-pass filtering, and while there's less chance for
>>> error, it doesn't mean no chance for error.
>>>
>>>> I don't pretend to understand why. It must have
>>>> something to do with one upsampled rate being an exact
>>>> multiple of the original sampling rate of the disc/DAT
>>>> and the other not.
>>>
>>> It is well-known that resampling involving integer
>>> multiples or integer fractions has no special magic
>>> involved with it, no matter what naive intuition tells
>>> some people.
>>>
>>
>> Well observed criteria is at odds with your assessment.
>
> You forgot to add that the observations that are at odds are highly flawed.
I your not-so-humble-opinion. You forgot to add that :->
>
>> Like most people, I tend to agree with people I trust and
>> people who have made the same observations that I have.
>
> I prefer to agree with reliable information. If someone is my friend and
> they are wrong, then it would be a friendly thing for me to do, to help them
> find the correct information out for themselves.
>
>> In these cases, some pretty high-powered players in both
>> pro and consumer audio seem to agree with my observations
>> as opposed to your facts.
>
> Hardly anybody buys into the pseudo-science behind those overpriced,
> oversold toys. Note that the SACD and DVD-A formats are slowly dying in the
> marketplace.
DVD-A is, in fact dead.
>> Like I said. I'm not here to
>> make enemies or to pontificate (unlike some others that I
>> have noticed). I am here to discuss the things in audio
>> that interest me.
>
> I prefer to discuss how the real world actually works and debunk, not
> promote old wive's stories.
I have yet to see you actually debunk anything. All I actually see from you
are counter claims.