• SONAR
  • Sonar & other workstations, the sampling frequency is a myth? (p.4)
2014/03/21 17:50:59
Sanderxpander
THIS is an endless debate, yes. However, again, the OP's "question" seemed based on the impression that sampling rate=audible frequency. We don't need to get nearly so technical to say that no, that is not the case.
2014/03/21 21:19:56
carlosagm79
Yeah people,cats can hear more than 70khz, we humans don't, and the classic devices for register ultrasounds(lets say under water) is called SONAR...other one the machine doctors uses in your pregnant woman baby bump...
But I don't discourage you batman!!!,If your really wanna record those frequencies anyway ,set your sequencer to 192 khz, waste computer resources ,and buy a modern stuff like this one:
 
http://www.ultrasoundgate.com
 
At least they use ultrasound microphones, for hearing bugs and bats:

Ultrasound Microphones

 
 And obviously, I think they finally use an under-sampling mechanism! , else, you not gonna hear what is recorded, you're human.
2014/03/21 21:44:06
carlosagm79
Ok, this one make me laugh, lest talk now about the frequency response of your monitor system, the frequencies that you're suppose to actually hearing no matter the recorded material, for example:
 
Yamaha HS5 : 54Hz-30kHz 
KRK RP5G2 Rokit G2 :  53Hz - 20kHz (+/- 2 dB)
Adam Audio A7X($1,498.00!!!!)  : 42 Hz - 50 kHz
So yeah, in cases like this,none of those speakers are giving you 96khz, so...is just not  a myth, is a LIE.
2014/03/21 22:25:47
carlosagm79
Sanderxpander
THIS is an endless debate, yes. However, again, the OP's "question" seemed based on the impression that sampling rate=audible frequency. We don't need to get nearly so technical to say that no, that is not the case.

No, I'm not assuming  sampling rate=audible frequency, everybody knows that according to math and because the Nyquist theorem  they have a t least to DOUBLE the sampling rate to correct register the human audible frequencies.
2014/03/22 01:57:51
mudgel
When posting in a public forum it's a good idea to make sure of your facts. For whatever reason some folks just don't seem to able to explain themselves very well.

The following expression springs to mind;

"It's better to remain silent and be thought a fool, than to speak and confirm it"
2014/03/22 04:27:44
carlosagm79
mudgel
When posting in a public forum it's a good idea to make sure of your facts. For whatever reason some folks just don't seem to able to explain themselves very well.

The following expression springs to mind;

"It's better to remain silent and be thought a fool, than to speak and confirm it"

Don't know exactly what you mean, I know this is an sensitive topic and I don't wanted to be overwhelming or act like a fool.Just that, in the "world that I used to know"  there was some laws and rational guidelines...if for any reason " angels and demons" twist our understanding...well, maybe alternate realities....and yeah, is good to remain humble.. that's why I really wonder if I'm crazy...and an ET is not possessing me with weird ideas...
2014/03/22 05:21:52
Jay Tee 4303
bitflipper
I was going to give a long, detailed, annotated and cross-referenced response to the OP, but after some consideration I decided to go have a sandwich instead.


What rate did you sample that sandwich at? Were there any bits left over? Mmmmmm..ham n cheese on Ryequist.
2014/03/22 11:06:16
bitflipper
Jay Tee 4303
bitflipper
I was going to give a long, detailed, annotated and cross-referenced response to the OP, but after some consideration I decided to go have a sandwich instead.


What rate did you sample that sandwich at? Were there any bits left over? Mmmmmm..ham n cheese on Ryequist.


As slowly as I could manage, about 6 bites per minute (BPM). Sandwiches are just the opposite of Nyquist: the slower you sample the more detail you experience.
2014/03/22 11:42:21
drewfx1
Hint - potato chips make for great dither!
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