| A | B |
|---|
| Sounds | vibrations that travel though the air or some other medium |
| sound wave | an audible vibration that travels through air or water. |
| Decibels | The loudness or intensity of a sound is measured in |
| Hertz | The frequency of a sound is measured in |
| 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 sound | continuous phenomena, such as speaking or an electrical pulse from an instrument |
| Sampling | converts electrical energy to binary code (1’s and 0’s) that is readable by computers. |
| Sample Rate | The rate or frequency at which a 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 | a visual representation of an audio signal. |
| Clip | a short segment of audio. It can be combined with others to make an audio track. |
| Track (Channel) | an area upon which audio moves. It may be a single waveform or could be made up of clips. |
| Single Channel | Mono |
| Two Channels | Stereo |
| Trim | removes everything from the left and right of selected audio. |
| Amplify | change the volume of selected audio. |
| Exporting | the process of saving an audio file in a format other than the format of the program it was created in. |
| WAV (.wav) | Developed by IBM and Microsoft for Windows High Quality (Lossless) Large File Size |
| MP3 (.mp3) | Compressed format Popular for music (MP3 Players) Well suited for Internet |
| AIFF | Developed by Apple High Quality (Lossless) Large File Size |
| Ogg Vorbis (.ogg) | Open Source Compressed format Well Suited for Internet Popular with Gaming Industry |
