Originally Posted by Frank
George,

What comes out of the analog outputs of an 861 after Meridian has applied resolution enhancement, upsampling, and all of its "secret sauce" is an analog signal which has a frequency response of x Hz to y kHz.

When performing analog to digital conversion, you will need to sample that analog signal at 2*y kHz to capture everything that is there to capture. Unless you think that there is high frequency information up to 192kHz in that analog signal, you will not need to resample at 384kHz. Likewise, unless you think that there is high frequency information up to 96 kHz in that analog signal, you will not need to resample at 192kHz. Moreover, unless you think that there is high frequency information up to 48kHz in that analog signal, you will not have to resample at 96kHz. Continuing, unless you think that there is high frequency information up to 44.1kHz in that analog signal, you will not have to resample at 88.2kHz.

Bob has consistently maintained that 96/24 is overkill to capture everything that is audible. Surely an analog to digital converter sampling at 48kHz is more than adequate to capture the analog signal representing the bass output from a crossover operating at 80Hz.

You need to sample at LEAST 96khz to capture the 48Khz information.
You're not trying to capture the 22Khz "Analog". You are trying to RESAMPLE a SAMPLING of the music.

So are you maintaining Bob thinks apodizing is nonsense too? It requires 96Khz to work !!

I think you are playing games with the numbers.

You have to sample higher to capture what Meridian adds and that your paying $25k for.

If you are throwing out Meridian Room Correction, and throwing out upsampling and apodizing. Why are you installing a $25K processor in the first place.

I'm not a teacher and I don't have the time to go into attempting to teach and to help explain it. But that's not how it works. Someone else can try. I may later if I have time. But I'm wasting way too much time with this. I'm actually completely floored that more folks don't understand why it's really bad. I was telling a coworker at lunch (who rolls his eyes at Meridian upsampling, apodizing etc.). But then I said they resample at 48Khz and in his words "Well now they really F'd it up".

When EvdBerg said he was worried about the QSC I thought it was about using A to D at all. His concern was it's not good A to D. I didn't realize that until later. It's a piece of crap (by Meridian standards).

You'll also see a LOT of folks here believe the directionality argument of freq below 80hz too. In fact I'm impressed how many folks agree on that. This is at least a valid debate. 48Khz resampling is a bad joke.

It's all very consistent with Meridian (Bob's) way of thinking.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
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