The focus is not on the BW pre se. It is on accuracy in capturing the complex music waveform exactly in all its details. The analog end result would be at least 20KHz and best would be 40KHz BW. But single-shot or real-time (NOT CW) sampling is needed at a rate to capture an accurate representation is at least ten samples per waveform period. From that comes your sample rate needed. That puts you at 192K and above.
At some point, at high enough sample rates, the sampled waveform needs very little 'smoothing' It is almost back to an analog waveform directly. 🙂
THx-RNMarsh
At some point, at high enough sample rates, the sampled waveform needs very little 'smoothing' It is almost back to an analog waveform directly. 🙂
THx-RNMarsh
Last edited:
From the Nuemann site:
Below 40 Hz: Sub Bass. Apart from kick drum, the sub bass range contains little musical information.
40-200 Hz: Bass frequencies, the foundation. The lowest note of a 4-string bass is about 40 Hz, the lowest note on a guitar is about 80 Hz. The lowest note of a male singer (baritone) is about 100 Hz, although you rarely hear such low notes. Well, maybe from country singers. Most pop singing by men and women is above 150 Hz.
200-500 Hz: Low Mids. This is the “body” of most instruments. This is also where the human voice has most of its energy.
500-3000 Hz: Mid Range. This area is crucial for the sound character, because it’s where the human ear is most sensitive to even the smallest details. The telephone transmits little below or above this range, yet we are able to recognize callers by their “hello.”
3000-7000 Hz: Presence. This range is important for sound definition and good intelligibility. It is the area of many speech consonants.
7000-14000 Hz: Treble. This area is crucial for our sense of brightness. However, too much energy in this area can sound harsh and distracting. This is the area of speech sounds such as S and T, of cymbals, but also of string noises.
Above 14,000 Hz: Air band. This area is important for recordings that want to sound “expensive” and “super-hi-fi.” It gives voices and stringed instruments an airy feel, hence the name. It does not contain much musical information, though.
What I find interesting is that one of the oldest most respected microphone manufacturers on the planet doesn't care about anything over 20k. Thats where all there plots end even though the mics still works above that. Imho that tells me more about extended bandwidth than anything in this thread.
Excellent, so it must be a piece of cake for you to suggest a track of an album with all these aspects.
Looking forward,
Hand
It has to do with the Calibration Standards and proof what you show above 20Khz. So test gear stopped at 20KHz. B&K has effectively created thier own cal standard for above 20KHz. .
THx-RNMarsh
Last edited:
I gave you 5 web sites which contain such HD/HiRez files for down loading.
Check them, do your due diligence on which ones etc. I think you can handle it OK.
THx-RNMarsh
I don't get the logic of this, why do you need ten samples per waveform period?
Look up the difference between repeating, CW signal waveform using minimum samples (2) vs non-CW, single shot or real time capture for waveforms that are not CW. CW works wonders for those repeating waveform cycles with min. nyq sampling. Like a signal gen for THD tests. Not the right sampling for single shot or real time, one pass events.
Sorry if thats too brief or cryptic.
Its 3am here. I am going to bed. Think on it awhile. You will get it.
THx-RNMarsh
Sorry if thats too brief or cryptic.
Its 3am here. I am going to bed. Think on it awhile. You will get it.
THx-RNMarsh
Last edited:
Getting anything out of Richard, exept usual three emoticons, is like pulling teeth 😀
I've quoted your post because they have a habit of vanishing 🙂 To be clear, we are talking about audio ADCs not measuring tools?
You know just as well as me that quite a number of Hi-Res is actually upsampled material.
From your list I reported two albums that were not recorded as Hi-Res.
So I need a suggestion for an album that’s above any suspicion for two reasons
1) Whatever I present will be regarded with suspect, so I has to come from a HI-Res fan like you.
2) I’m not going to buy all albums from your list, but just one is O.K.
Hans
Last edited:
Neumann-Sennheiser; There's one left.
Colorado Symphony Orchestra: True Classics, Neumann & Sennheiser, 2CD, Brand New | eBay
Colorado Symphony Orchestra: True Classics, Neumann & Sennheiser, 2CD, Brand New | eBay
The RCA and Mercury SACDs from the Golden Age of three microphone recordings contain the original three tracks in direct transfers, and can be played through three speakers, L/C/R.
These are getting hard to find affordably, especially the Mercurys, but are miles ahead of modern commercial recordings, especially the performances IMO.
All good fortunes,
Chris
I don't know if anyone noticed my comment on the datasheet about inter-sample overs being an analog problem too, this was BTW when CD's were in their infancy.
Push the boundaries and spend more folks, I think there's something good for all of us striving for bleeding edge technology even if overkill, me thinks it will benefit people staying on CD level as things from above will trickle down, my hope is CD would become the new "mp3" for those of us on limited finances although I wouldn't mind 24/192, bw and memory is not the bottleneck.
Derfy,
You could go from my background noise level at home to running a jet engine (If you could get one through the entry) and still not exceed 24 bits of dynamic range. (Unless you put the microphone where it would melt.)
You could go from my background noise level at home to running a jet engine (If you could get one through the entry) and still not exceed 24 bits of dynamic range. (Unless you put the microphone where it would melt.)
When Pentatone started in 2002, they where looking for investors.
Their plan was to introduce high quality classical music on multichannel SACD's for low cost surround systems, at that time costing ca. 1000,- Euros.
I did not believe in that concept so I did not participate.
However I received 6 of their multichannel SACD's, see image below with 2 of them.
Looking today on the internet for Pentatone, I see that they are still producing SACD "remastered quadra recording", so 4 channel SACD.
I do not like classical music coming from all directions, this sounds very unnatural to me and I do not have the impression that other than for spectaculair video systems, multichannel is in demand for audio reproduction.
Hans
Attachments
Yes my suggestion was more that one would find the lower bits in 24 (21) bit system are going to be dithered i by the environmental noise, even in the quietest of rooms. So, ignoring electrical ability to have such a signal, our DR is environmentally limited.