COSC 109 Lecture 5: Chapter 5
9 Mar 2017
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Document Summary
Ways to acquire digital audio: record, digitize analog medium- record somewhere else and convert the file. Computer with a sound card: almost all computers nowadays are equipped with a sound card. Sound card: converts the electrical signals into digital format through sampling and quantization of the signals: microphone, built-in the laptop. Usually does not produce sufficient sound quality: external microphone. Most sensitive to sound coming from the front. Advantage: ignore noise coming from the rear: omnidirectional. If you don"t have the specifications of a microphone. Place the sound source directly in front of the microphone. Digital audio recording program: also lets you edit audio, some common programs: General steps for recording with a digital audio program: start a new file. Added notes: specify settings: sampling rate bit depth number of channels. Settings (use for term project, these are good ones: sampling rate. 22,050 hz: sufficient for multimedia projects with voice over and loop musics: bit depth setting.
