60 terms

3-3-Sound Devices

LabSim flashcard 4.6.3 Sound Card Facts
STUDY
PLAY

Terms in this set (...)

Sound card
A ____ is an expansion card (or a component of the motherboard) that manages sound input and output. Because computers use digital data, sound cards must convert analog sound into digital data, and digital data into analog sound.
ADC (Analog to Digital Converter)
Sound cards must convert analog sound into digital data, and digital data into analog sound. To do this, the ____ converts analog sound into digital data.
DSP (Digital Signal Processor)
Sound cards must convert analog sound into digital data, and digital data into analog sound. To do this, the ____ is an on-board processor that reduces the CPU load.
DAC (Digital to Analog Converter)
Sound cards must convert analog sound into digital data, and digital data into analog sound. To do this, the ____ converts digital data into analog sound (in preparation to be played on speakers).
Chipset
Many newer motherboards have a built-in sound ____. You can also add audio through an expansion card in a bus (such as PCI or PCIe).
Channels
Sound is split into multiple ____, which can increase the sound quality, making it more realistic.
2
____ channel audio is stereo. Examples of 2 channel audio include standard TV and radio.
4
____ channel audio is quadraphonic audio, an early attempt at surround sound.
6
____ channel, also known as DTS (Digital Theater System).
5.1
____ channel audio, also known as surround sound, has 5 audio channels (delivered on 5 strategically placed speakers) and 1 effects channel (delivered via a subwoofer).
7.1
____ channel has 7 audio channels (delivered on 7 strategically placed speakers) and 1 effects channel (delivered via a subwoofer).
Dolby digital
The commercial name for this 5.1 channel audio technology is ____.
7.1 channel
____ is the first technology providing error correction.
SDDS (Sony Dynamic Digital Sound)
The commercial name for 7.1 channeltechnology is ____.
Sampling rate
The ____ is the number of analog signal samples taken over a period of time and are expressed in cycles per second, called hertz (1,000 hertz (Hz) = 1 kilohertz (kHz)).
False
True or false, a low sampling rate gives a more accurate representation of the sound.
8
A sampling rate of ____ kHz (telephone) is adequate for conversation because the human voice's full range is about 4 kHz.
22
____ kHz sampling rate is radio quality.
44
____ kHz (CD quality) sample rate can accurately reproduce the audio frequencies up to 20,500 hertz, covering the full range of human hearing.
48
____ kHz sampling rate is Digital TV and DVD movies.
96
____ kHz sampling rate is DVD audio.
192
____ kHz, used by LPCM (Linear Pulse Code Modulation), a DVD-music production format.
BD-ROM (Blu-ray Disc-ROM) and HD-DVD (High-Density-DVD), two competing next-generation optical disc formats providing HD video and high density data storage.
192
____ kHz, used BD-ROM (Blu-ray Disc-ROM) and HD-DVD (High-Density-DVD), two competing next-generation optical disc formats providing HD video and high density data storage.
8
____-bit sound cards use a sampling size of 256.
16
____-bit sound cards use a sampling size of 65,536.
20
____-bit sound cards use a sampling size of 1,048,576.
24
____-bit sound cards use a sampling size of 16,777,216.
32
____-bit sound cards use a sampling size of 4,294,967,296.
True
True or false, the bit portion of a sound card's sampling size does not correspond with the bus size.
DirectSound 3D
____ allows a computer to play audio in surround sound.
EAX
____ is a high definition sound technology originally developed for video games. This technology provides such realistic nuances that audio can actually cue gamers.
THX
____ is a sound quality standard, originally created for film, now available on sound cards. This is a sound card feature that allows computers to present theater quality sound output.
Dolby Digital
____ is a technology that broadcasts sound at a frequency the human ear can hear and diminishes collateral sound. This is a sound card feature that allows computers to present higher quality sound output.
DTS (Digital Theater Systems)
____ Digital requires an optical reader to decode physical data and send it to a computer for processing. This is a sound card feature that allows computers to present theater quality sound output.
MIDI (Musical Instrument Digital Interface)
____ is a protocol for recording and playing audio created on digital synthesizers. This feature allows the computer to become an integrated component to a musical instrument.
Output
Analog ____ jacks allow you to play sound on your computer on external devices.
Speaker out
The ____ connector sends signal to external speakers. This signal is amplified and the computer controls the sound level that is sent.
Line out
The ____ connectors send audio to other sound devices. This signal is unamplified.
Input
Analog ____ jacks allow you to record audio through the sound card.
Line-level (line in)
The ____ connector receives signals from CD players and musical instruments coming from the line-out port of the other device.
Mic-level (microphone in)
The ____ connector receives signals from microphones.
Analog
Most audio devices, such as stereo consoles, TVs, and speakers require ____ audio.
Digital
Newer devices, such as some CD players, DVD players, and HDTVs, are capable of processing ____ audio signals.
Digital audio
____ support in a sound card allows you to play digital audio directly from an internal CD player.
Compression
Digital audio support in a sound card allows for ____ of audio data to support Dolby Digital or DTS surround sound.
Fiber optic
Digital audio support in a sound card can use ____ cables to eliminate electrical interference.
Digital audio
Sound cards support ____ with an internal connector on the sound card that connects to a digital audio output connector on a CD/DVD drive. Through this connection, you can play CDs directly through the sound card.
Internal connector
Sound cards support digital audio with a(n) ____ on the sound card that sends HD audio, such as from a DVD or Blu-ray disc, to an audio pass-through on a video card. This allows the HD audio signal to be combined with the video signal through an HDMI connector.
S/PDIF (Sony/Philips Digital Interface Format)
____ is a consumer standard for digital audio. These external connectors allow input and output between other digital audio-capable devices.
Midi/joystick
Some sound cards also include a(n) ____ port to interface with Midi sound devices or game controllers.
Firewire
Some sound cards also support ____.
HDMI (High-Definition Multimedia Interface)
Some high-end audio cards include ____ video processors and video output, combining the features of an audio card with a video card. The sound card might have 1 or 2 of these ports (for input and/or output).
WAV
Sound card drivers and other software save digital audio into several different file types. Common file types include ____ (Windows standard), a widely used and compatible file type.
AIFF (Audio Interchange File Format)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, the Macintosh equivalent of the WAV.
AU (UNIX standard)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, supported by most Web browsers.
MP3 (MPEG-1 Layer 3)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, a highly effective audio compression standard.
AAC (Advanced Audio Coding)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, also known as MPEG-2, a compression expected to replace MP3.
RA (Real Networks)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, developed for streaming audio files. Requires proprietary software.
WMA (Windows Media Audio)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, a highly compatible standard developed to compete with Real Audio.
MIDI (Musical Instrument Digital Interface)
Sound card drivers and other software save digital audio into several different file types. Common file types include ____, not a true audio file, but contains data to reproduce sounds through electronic synthesis.