Digital Audio 102 - PCM, Bit-Rate, Quantisation, Dithering, Nyquists Sampling Theorum - PB15

This is part two of my video series on Digital Audio.
This Episode covering some more in depth aspects of the area.

Watch Part 1 here:


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Thanks for watching!
Veranova

[michaelbeckerman]

This is one of the very best videos that I have seen on this subject so far. Really well done!

[KenTeel]

Excellent, especially the explanation of aliasing. This is one of the best explanations that I've seen.

[agstechnicalsupport]

Good explanation of some basic terms used in digital audio. Thank you !

[JayBenOh]

Oh, wow! Good to know, thank you. Because i always render the audio-layers seperated to do the mixdown to have a little more distance. :-)

[guidanceplace]

very clear and concise info, thank you!

[jinhobaek]

Thank you for the video. this is what I have been looking for!

[iBrade]

My teacher did a bad job teaching this. You should teach at a University. Thanks man.

[IvanDSM]

MP3s can be 8-320kbps, but it's compressed. 1411, 2kbps is for uncompressed (WAV for example) audio.

[davidhaggerty]

Thank you for helping demystify some of this process in a very clear and simple manner.

[kaeresbeeste]

More tutorials about Mixing pls :)
U r the best!

[espera_]

0:53 I think he meant Bit 'Rate' is represented as bit/s. Or am I confused?

[adampax]

sweet video!!! thanks for sharing man :)

[m.i.stapes]

Can you recommend some reference sources/materials to learn more about these topics?

[laranotout]

after watching 15 times....I am still as confused as the first time round! Man - this is technical! Good video though!

[gblargg]

Even 22.05 doesn't work (consider waves of differing phases). Nyquist requires a sampling rate greater than double the highest frequency.

[rossbradley]

For the nyquists theorem section, isn't the highest frequency of CD audio 20kHz? And the nyquists sampling rate is two times that at 40khz. The sampling rate of 44.1khz includes a 4.1khz guard band, or 2.2 times the maximum signal frequency.

Great videos, subbed!

[resulsejdini]

DUDE i thank you from the bottom of my heart for making my life easier :D;)

[grantshalks]

In the comment that pops up at 3:51, did you mean to type "... dithering doesn't mask noise .."?

[perfectstranger]

Could you please explain how PCM works not with a single frequency but with real music that contains bass vocal, piano etc? In other words, we could have in this case different sinusoids for e.g. 31 Hz, 500Hz, 4000Hz sounding at the same time. Does PCM capture in the same time all these sinusoids during sampling and quantifying steps making a "digital imprint" of the spectrum for a moment?

[JayBenOh]

Very good to know. I alwas asked myself what dithering is . . . is it still usefull today when we sample the audio with 44.1 khz and 16 to 24 bit?