Sound resolution

Digital Sound -> Messages -> Sound resolution
21.08.2009 10:53:00
Google gives all nonsense - n.. . . . al to ask the question in Russian and in English.
Duc what it is - a sound solution? And
in different audio player it is possible to choose - 8, 16, 24 or 32 bits.
And some of them which corresponds to?

Thank you very much.
21.08.2009 11:12:00
In normal language this is called a bit
Basic theory of digital sound can be read here:
http: // www. muzoborudovanie. ru / articles / dig / dig. php
21.08.2009 11:19:00

do not know about sound resolution, but in bits indicate the audio format that is capable of delivering sound card (often 24bit \\ 96kHz). . . Also in bits indicate one of the characteristics of the sound file (along with the bit rate and sample rate). . . These characteristics determine the quality of the audio file: CD quality - 16bit \\ 44. 1kHz DVD quality - 24bit \\ 192kHz. . . Generally speaking always measured in bits bit, whether it's graphics or sound. . .
21.08.2009 11:19:00
Thank you very much.
topic can be closed.
21.08.2009 11:25:00

When converting analog to digital conversion takes place in a continuous process of a discrete sequence of values ​​of the signal. Each value (sample) can be represented as a multi-bit: 8, 16, 24, 32-bit codes. The higher the bit sample, the more accurate it corresponds to the original signal, but require more storage space.
21.08.2009 13:25:00
That's interesting. . . And is there a 32-bit recording. . . It would be interesting to listen to. . .
21.08.2009 13:28:00

n.. . . . al
Not the topic, of course. . but this word is written with "o". "Samples of shaft." Through the "s" is quite natural forum will be blocked. Wonderful function, it should be noted.
21.08.2009 15:43:00

Ranks something enough and 16, but have a sampling frequency of 2 MHz!
21.08.2009 16:50:00
yeah. . . I do not often listen to 192kHz. . .
21.08.2009 16:56:00

s to defuse something enough and 16, but would have a sampling frequency of 2 MHz!


yeah. . . I do not often listen to 192kHz.
192 already hardly differ if different from 96, the higher, the more difficult to distinguish by ear.
21.08.2009 17:22:00
And with regard to acoustics when the term is used?
21.08.2009 18:14:00


192 already hardly differ if different from 96, the higher, the more difficult to distinguish by ear.
You just have to know what to listen and hear. It is desirable to eliminate the emotional component of course only at the time of comparative listening.
The worst consequence is the emergence of digitizing extraneous sound pressure due to the occurrence of amplitude modulation of extended time spectral components of the signal amplitude is inversely proportional to the frequency spectral component with respect to the sampling frequency and the frequency depends on the "heartbeat" of these frequencies (stroboscopic effect). For example, at 40 kHz sampling frequency spectral modulation depth of 20% will be 100 KHz, 10 KHz - 50%, and so on. D..
All this is well heard when digitizing vinyl vinyl, 192 kHz, 44 kHz.
21.08.2009 19:20:00

For example, at a sampling rate of 40 kHz spectral modulation depth of 20 kHz will be 100%, 10 kHz - 50%, and so on. D..
And again I say that you do not understand that writing. . . Because if somebody believes.
21.08.2009 21:57:00

Give me another explanation described effect. It's not only I can hear. This is confirmed by the digitization and restoration of external to the computer sinusoidal signals. Experiments conducted Anton Shumakov.
22.08.2009 9:13:00
24 bits. Right and wrong

Read to your health. Understandable language.
22.08.2009 10:08:00
quote:
:

192 already hardly differ if different from 96, the higher, the more difficult to distinguish by ear.
You just have to know what to listen and hear. It is desirable to eliminate the emotional component of course only at the time of comparative listening.
The worst consequence is the emergence of digitizing extraneous sound pressure due to the occurrence of amplitude modulation of extended time spectral components of the signal amplitude is inversely proportional to the frequency spectral component with respect to the sampling frequency and the frequency depends on the "heartbeat" of these frequencies (stroboscopic effect). For example, at 40 kHz sampling frequency spectral modulation depth of 20% will be 100 KHz, 10 KHz - 50%, and so on. D..
All this is well heard when digitizing vinyl vinyl, 192 kHz, 44 kHz.
Something did not notice anything like that when digitizing vinyl. With the increase in the discharge is markedly increased bandwidth recording and dramatically increase the quality requirements of the mechanism and turntables to the head, here without the MS can not do. Perhaps in the observed effect of source you add. harmonics is substandard MM head and arm. . .

quote:
:
24 bits. Right and wrong
Read to your health. Understandable language.
Thank you. But such articles on the ruble bucket. . .
What resolution listen, this is the choice of the listener.
distinct advantage is the high resolution for restoration, for example, ripnutogo vinyl. Easier to work with different programs, well then you can overtake in anything or leave in the original, the more terabaytniki constantly getting cheaper. . . .
22.08.2009 16:50:00

Experiments conducted Anton Shumakov.
Where can I see the results?
As I understand it, this is the Shumakov, which is still three months ago, promised to lay "soon" measurements of his creation? And promised repeatedly.
22.08.2009 19:41:00
Show
at least two such articles. Well, at least one.
22.08.2009 21:30:00

By the way, described in the article makes sense to be treated with caution. Some of the statements look hmm. . . excessively loose assumptions.
22.08.2009 22:20:00
I will be glad to discuss
bottlenecks above. But in my opinion all the allegations in the article or "rounded" to the best (ie, so that the reality is much worse), or based on data from the technical documentation.

PS plans to have an idea to write about Sathya autosuggestion and "musical placebo effect." And also on the distortion transient and impulse response (mainly in the dynamic head). May already have such articles and should not start? Just noticed that all people are more willing to agree to take the world of marketing and advertising for the real world. Is Tupe?
22.08.2009 22:31:00
quote:
:
PS plans to have an idea to write about Sathya autosuggestion and "musical placebo effect." And also on the distortion transient and impulse response (mainly in the dynamic head). May already have such articles and should not start? Just noticed that all people are more willing to agree to take the world of marketing and advertising for the real world. Is Tupe?
In fact, everything is chewed for many times and for many years. . Opinions differ. If you are interested, then Google will help.
22.08.2009 23:04:00

bottlenecks outlined
Well, just for instance, from the article:
quote:
To combat the noise came up Dither
question: how dizer struggling with noise?

Or, say, such a moment. Written by comparing the voltage believes (not you whether the author?) , that low levels of the signal will be crushed by a higher level of noise and they will not be heard.
Conduct a simple experiment: Generate white noise with a level of -10dB and -16dB 1kHz sine (t. E., 2 times less). Fold them and listen amount. Hear whether sinus? And why not?
23.08.2009 1:22:00

I only saw a similar plan Wikipedia that of "vari- essence of quantization of the signal, but so that from theory to practice - not seen.



That's right, afftor - I .

Dieter does not struggle with noise in the literal sense . It does not suppress it. The wording in the text will correct (or better to throw out a paragraph...).

Regarding simple experiment. Sinus will be heard because of the fact that the signal frequency of 1 kHz, which is contained in the white noise will be equal -40dB (approximately). And it is not enough to amplitude modulation was evident at the hearing.

But in the very article is not about that. The fact is that 24-bit sound is intended to cover the dynamic range of 144, 49dB, for net of our beloved Dieter get 138, 47dB. In reality, it is very difficult to achieve dynamic range 120dB, which is 20 bit precision. Purpose of this article - to show that the 24-bit "hear" it is impossible. Often we are dealing only with 18 bit sound, and sometimes less. Well, I did not consider the psychoacoustic aspect. The human ear can "cover" band sound pressure ~ 140dB, but that does not mean that a person will hear the whispers (10dB SPL), while at the disco (110dB SPL). So 24 bits is even too much. But if modern computer power allow you to work with a number of quantized bits, then why not? Again, the purpose of this article - to tell people (on fingers) as the DAC works and whether to wait for the 32-bit sound cards. And in general, for the overall development of useful

PS Noise described in the article is the standard (and there is the distribution density increases to high frequencies). Mask some one tone, of course, difficult, since the amplitude is small. But here is a signal with a wide range of already noticeable. Harm from him - amplitude modulation of the desired signal, and hence nonlinear distortion. They are small, but audiophiles may fall into severe depression looking at the numbers . Personally, I think the biggest "harm" in the sound is not the DAC and the dynamic head and UMCHZ. There are some "features" (probably know) as phase distortion (see. Group delay), transient distortion - in my opinion it is more ferocious enemies than the noise DAC. Measurement because usually performed to established processes - is played by two sinus, and we see what they are there "fruit". But the main thing - it is an attack signal. Man "reads" sound with the attack, and if there is a large distortion, then do not be surprised that the sound does not play like that. But this is another story. . .
24.08.2009 10:46:00


Where can I see the results?
As I understand it, this is the Shumakov, which is still three months ago, promised to lay out "soon" measurements of his creation?

This is it. I showed.
Here is a confirmation of my hypothesis: while reducing the bit rate to reduce the unit of data (video movies to the Internet) can occur whistle on some degree of compression.


Personally, I think the biggest "harm" in the sound is not the DAC and the dynamic head and UMCHZ. There are some "features" (probably know) as phase distortion (see. Group delay), transient distortion - in my opinion it is more ferocious enemies than the noise DAC. Measurement because usually performed to established processes - is played by two sinus, and we see what they are there "fruit". But the main thing - it is an attack signal. Man "reads" sound with the attack, and if there is a large distortion, then do not be surprised that the sound does not play like that. But this is another story. . .
supported. But not only distort sound UMZCH but all malosignalka, including analog filters after the DAC. A
low sampling frequency mainly affect correct playback RF components (phase ambiguity, because of which there is parasitic and amplitude modulation). Hence - the wrong play attack.
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