courses-music/ableton/_subsections/sec08/lesson-57.org

S08 | Audio Recording Fundamentals - 57, 58, 59

• Links
• Notes
  • hardware setup
    • microphone
    • using interface for backsound
    • notify ableton of what you are doing
    • turn on the channels you are going to use
    • sample rate
  • latency
    • buffer size
    • driver error compensation
    • input latency
  • microphone placement
    • how much air is going into your microphone
    • the way to block off air is by using a "wind screen"
    • trumpets

Links

• TOC - Ableton Notes
• S08:L57 - Hardware Setup
• S08:L58 - Latency
• 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