Audio Recording Sound Safari

Summary

We recorded three audios. We took three pictures. The first two were me saying stuff. The third one was recording one of my teammates’ guitar sounds. The first one was in the main room. The second one was outside. The last one was in one of the sound rooms.

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

Resources

DAW Audio Composition Project

Summary

I was learning how to play a section of Blood//Water by grandson.

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 didn’t use one.

GarageBand Track

My Composition

Feedback

What I Learned & Problems I Solved