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MaWD 3.01 Audio Key
| Term | Definition |
|---|---|
| Sounds | Vibrations that travel through the air or some other medium |
| Sound Wave | Audible vibration that travels through air or water |
| Decibels | The loudness or intensity of a sound |
| Crest | Point that exhibits maximum amount of upward displacement from the rest position |
| Trough | Point that exhibits maximum amount of downward displacement from the rest position. |
| Wavelength | Distance from crest to crest |
| Amplitude | Distance from rest to crest or rest to trough |
| Frequency | Number of waves to pass a point in one second (how fast) |
| Pitch | Quality of a sound determined by the rate of vibration. The degree of highness or lowness of a tone(how high) |
| Analog | Continuous phenomena, such a microphones, video cameras (continuous valued voltages) |
| Sample Rate | The rate or frequency at which sound is sampled to digitize it. Measurements of a sound wave over time measured in Hz (cycles/sec) |
| Bit Rate | The number of computer bits that are conveyed or processed per unit of time |
| Waveform | Visual representation of an audio signal |
| Clip | Short segment of audio. It can be combined with other s to make an audio track |
| Track | Area upon which audio moves. It may be a single wave form or could be made up of clips |
| Trim | Removes everything from the left and right of selected audio |
| Amplify | Change the volume of selected audio |
| Capture | To record audio, video and store digital data |
| WAV | Developed by IBM and MIcrosoft for Windows, High quality (lossless), large file size |
| AIFF | Developed by Apple, high quality (lossless), large file size |
| MP3 | Compressed format, popular for music (MP3 players), well suited for internet |
| .avi (Audio Video Interleave) | Stores video and audio |
| .ogg (Ogg Vorbis) | Open source, compressed format, well suited for internet, popular with gaming industry. |