Ch 1: Audio Input Flashcards
(15 cards)
What is audio input?
Speech, music and sound effects entered into a computer
What is a sound card?
add- on circuit that provides sound support to a PC
How does a sound card work?
by going back and forth between the analog sounds that humans hear and the digital recordings that computers store and play back
What additional components does a PC sound system typically include?
ports for connecting microphones, digital musical instruments and other sound input devices
What are voice input technologies?
technologies that enable users to enter data by talking to the computer
What is a speaker- independent system?
A system that recognizes words spoken by an individual and translate them into text regardless of the person’s vocal tone, pitch or accent
Wha are examples of a speaker - independent system?
a voice automated teller machine or atmospheric speaker
What is a speaker - dependent system?
A system that can be trained to understand a specific person’s voice by completing a series of practice drills
can accept input from the environment.
What are some examples of speaker - dependent systems?
many smartphones and tablets accept input data from environmental sensors
What provides data to fitness tracking applications or apps, as well as apps that need to hat need to be aware of the user’s activities?
Sensors
What is an accelerometer?
Reports how fast an object is moving
What is the purpose of a gyroscope?
describes an object’s orientation in space
What is the purpose of a compass?
reports the direction of an object’s location
What is the purpose of a Global Positing System (GPS)?
to provide location info by orienting the current location of the device to a signal from an orbiting satellite.
From what distance can a GPS report its position on Earth?
within about 15 meters or 50ft
