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====== Audio 101 ======

FIXME


===== Loudness =====

https://en.wikipedia.org/wiki/Equal-loudness_contour


===== Sample Rates, etc. =====

  * [[https://www.dummies.com/consumer-electronics/understanding-digital-sound-and-analog-sound/|Understanding Digital Sound and Analog Sound]]
  * [[https://people.xiph.org/~xiphmont/demo/neil-young.html|24/192 Music Downloads ...and why they make no sense]]
    * [[https://xiph.org/video/vid2.shtml|Accompanying Video]] (explains sampling, bit-depth, aliasing, dither...)

==== 16 bit vs 24 bit ====

//Quote:
Originally Posted by stupeT
Given my “real world poor man's studio”...Shall I print in 24 bit or is 16 bit enough and I will have no lose what so ever, but better performance of my DAW? Cheers
stupeT
I think it is unlikely that an otherwise reasonably capable DAW computer would bottleneck due to recording at 24-bit instead of 16-bit. Reaper and all modern DAWs use high-precision audio engines over 24-bit, so your samples are being processed at high bit depths even if they are low-resolution samples. A second fast hard drive is pretty cheap in the scheme of things and almost a requirement for
high-track-count audio, it seems to me. Moreover, 24-bit is stupidly cheap and easy insurance against the single biggest headache of digital recording, namely trying to set the record levels high enough
without clipping. With 16 bit, if you need to leave 24dB headroom above the aver-
age level for a singer with no mic technique, then you're really only recording at
about 12 bits resolution on average. The whole point of 24 bit is that you no longer have to record close to zero, you could record with peak levels of like -50 and still have CD-quality resolution. So
you can leave plenty of headroom and just turn down the input gain as low as
you want – no fear of clipping, and no worries of lost resolution, no matter how
“wild” the singer. Sample rate is a whole different thing, OTOH. Working at higher sample rates def-
initely affects performance.// ((http://stash.reaper.fm/v/3107/wdyrsla_061709.pdf))

===== Post-Production =====

==== Loudness and gain staging ====
  * https://www.sweetwater.com/insync/gain-staging/
  * https://www.izotope.com/en/learn/gain-staging-what-it-is-and-how-to-do-it.html

==== Dynamic Effects ==== 


==== Spatial Effects ====

==== Noise Removal ====
 
  - with Audacity
    - https://manual.audacityteam.org/man/noise_reduction.html
    - https://www.wikihow.tech/Remove-Background-Noise-in-Audacity 
  - with RX7
  - with [[Reaper]]
    - http://podcasternews.com/2014/04/04/noise-reduction-reaper-plugin/

--------------

https://www.youtube.com/watch?v=TEjOdqZFvhY

===== Mics 101 =====
FIXME
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