Lesson Two: Install and Configure Multimedia Devices Flashcards
(10 cards)
What are the three main components of an audio subsystem?
Sound card, input device, and output device. You can have more than one input/output.
What is frequency response, and what is its use?
The volume produced by different frequencies. This determines the quality of audio playback.
What is the basis of a sound/audio card?
The DSP (Digital Sound Processor) chip, which is comprised of DACs (Digital-to-Analog Converters).
What is the basis of a sound/audio card?
The DSP (Digital Sound Processor) chip, which is comprised of DACs (Digital-to-Analog Converters).
What does a DAC do?
Converts the digital sounds from a CPU into an analog signal for the speakers.
What is an S/PDIF jack? Where is it most commonly used?
Sony/Phillips Digital Interface jack. Most often used to carry digital data to surround-sound speaker systems.
What does MIDI mean? What is it used for?
Musical Instrument Digital Interface. Used to control MIDI equipment like a synthesizer or drum machine.
How is an analog sound wave recorded?
The sound card samples the wave by dividing it into a number of slices per second (sample rate, can vary). The higher the sample rate, the better the representation. Noise levels are measured by Total Harmonic Distortion (THD) and Signal-to-Noise Ratio (SNR). The lower the better.
The digicam (digital camera) market is divided into what three categories?
Consumer models – replicates the features of 35mm cameras.
Professional DSLR (Digital Single Lens Reflex) – replaceable lenses and manual adjustment, similar to the traditional viewfinder method.
Prosumer – between the two, ranging from high end consumer models to low end DSLR models.
What four measurements are used to represent digicam quality?
Lens, shutter speed, feature set, and resolution.
