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#+title: S08 | Audio Recording Fundamentals - 57, 58, 59

* Links
- [[../../toc.org][TOC - Ableton Notes]]
- [[https://www.udemy.com/course/ableton-live-11-masterclass/learn/lecture/25898766#overview][S08:L57 - Hardware Setup]]
- [[https://www.udemy.com/course/ableton-live-11-masterclass/learn/lecture/25898768#overview][S08:L58 - Latency]]
- [[https://www.udemy.com/course/ableton-live-11-masterclass/learn/lecture/25898772#content][S08:L59 - Microphone Placement]]

* Notes

** hardware setup
***  microphone

1. need XLR cables
   - 3 pin
   - used for the microphone

2. plug the microphone to the interface using the xlr cables
   - inputs 1 or inputs 1 + 2
   - can plug in multiple microphones

3. plug the interface into the computer

*** using interface for backsound
- recomended
- plug the speakers into the interface
  - speakers are plugged into the outputs on the interface device
  - outputs 1 + 2

*** notify ableton of what you are doing
- go to Preferences->Audio
  - Audio Input Device
  - Audio Output Device

*** turn on the channels you are going to use
- Settings->Audio->Channel Configuration->Input Config
- turn it on for both mono inputs and stereo inputs
- turn on the ones you are going to use, that your device is capable of using

*** sample rate
- what sample rate do you want to record at?
  - standard for digital audio is 44100 samples per second
  - 48000 is becoming standard
  - you can go to 88200
    - will make huge files
    - for concerts

** latency

latency is the delay going into your microphone and going out through your speakers

we need to make that as small a time as possible

*** buffer size

- how big of a chunk live is going to use to process the sound
  - higher values give higher sounds quality
  - but also cause higher required processing time

- 32 samples
  - no problem for recording
  - problem for playback

*** driver error compensation
- if your audio interface has a certain amount of latency built in, you can indicate that there
- check your documentation for your audio interface

*** input latency
- this is what will cause the problems, so you need to focus on that

** microphone placement
*** how much air is going into your microphone
  - this will give you a ballpark figure
  - think about the type of microphone
    - dynamic microphones can handle a lot of air better
    - condensers are highly sensitive


*** the way to block off air is by using a "wind screen"
 - this protects against 'p' sounds

*** trumpets
- dynamic might not be an issue
- with a condensor, that is sensitive
  - put it in front and turn it
  - move it off to the side a little bit
    - you are moving the diaphram off at an angle so a lot of the air will angle off