Month: April 2022

Audio Recording Sound Safari

Summary we recorded audio in different locations.

Audio Terms and Definitions

  • Sound Wave
    • A vibrational disturbance that involves the mechanical motion of molecules transmitting energy from one place to another.
  • Compression
    • Reducing a signal’s output level in relation to its input level to reduce dynamic range.
  • Frequency
    • The # of times per second that a sound source vibrates, is expressed in hertz (Hz).
  • Hertz
    • Unit of measurement of frequency; numerically equal to cycles per second (cps).
  • Infrasonic
    • The range below the frequencies is audible to human hearing.
  • Ultrasonic
    • The range above the frequencies of human hearing.
  • Pitch
    • The subjective perception of frequency – the highness or lowness of a sound.
  • Fundamental
    • The lowest frequency a sound source can produce. In other words, it is also called the first harmonic or primary frequency which is the lowest, or basic, pitch of a musical instrument.
  • Sound Frequency Spectrum
    • The range of frequencies audible to human hearing: about 20 to 20,000 Hz.
  • Octave
    • The interval between the two frequencies that have a tonal ratio of 2:1.
  • Bass
    • The low range of the audible frequency spectrum; is usually from 20 to 320 Hz.
  • Midrange
    • The part of the frequency spectrum to which humans are most sensitive; is the frequencies between roughly 320 Hz and 2,560 Hz.
  • Treble
    • The frequency range between roughly 5,120 Hz and 20,000 Hz, the highest two octaves audible to human hearing in the sound frequency spectrum.
  • Equalization
    • A signal-processing device that can boost, attenuate, or shelve frequencies in a sound source or sound system.
  • Amplitude
    • The magnitude of a sound wave or an electric signal is measured in decibels.
  • Decibel (dB)
    • A relative and dimensionless unit to measure the ratio of two quantities.
  • Wavelength
    • Distance between two peaks of a wave
  • Velocity
    • Speed in a given direction
  • Harmonic
    • Is a multiple of the fundamental frequency
  • Phase
    • Factor in the interaction of one wave with another, either acoustically or electronically

– Audio terms and definitions from Wikipedia

Voice Recording

Outdoor/Environment Recording

Instrument Recording

Feedback

What I Learned & Problems I Solved

  • what mic placement is important.
  • to get the right levels.

Resources

DAW Audio Composition Project

Summary

I took a song and slowed it down, changed the key, and made it sarcastic. For this project, I chose “Warpigs”. I chose this song because it’s one of my favorite songs, its a good one and it seemed like it would lend itself to the warping of this project. Instead of the usual E, D, G, Gb, and F, I used Emin, Dmin, Gmin, Gbmin, and F min.

Audio File Formats and Definitions

AIFF (Audio Interchange File Format): stores standard CD-quality audio; similar to WAV (Higher Quality)

WAV (Waveform Audio File Format): CD audio; can be saved with different sampling and bit rates; similar to AIFF (Higher Quality)

MP3 (Audio File): Used to store audiobooks and music on a hard drive; Close to CD-quality sound; the higher quality sound comes from higher bit rates which also take up more storage space

MIDI (Musical Instrument Digital Interface): music data: notes played, when notes are played, how long each note is played, and the velocity of each note played; used to be able to exchange and use information between software and hardware programs; no actual audio data

All the audio file format information is found at: fileinfo.com

Song Used As Template

  • I like the sirens and I might be able to make something even cooler out of it.

GarageBand Tracks

Feedback

  • Write a few comments from other students or advisory members
  • Cite the person who shared the comment
  • Only use first names

What I Learned & Problems I Solved

  • I learned how to use the right amp simulator from soundtrap.
  • I learned how to slow down for the notes better!
  • For this exercise, I had no tutorials.