Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
A sound with higher ______ is perceived to have a higher pitch. |
Frequency |
|
|
The unit used for measuring ______ is Hertz (Hz). |
Frequency and Sampling Rate |
|
|
A waveform is a graphical representation of the _____ fluctuations of a sound wave. |
Pressure--Time |
|
|
A horizontal axis of a waveform is ______. |
Time |
|
|
The vertical axis of a waveform is ______. |
Pressure |
|
|
True or False: Zero decibels is when there is absence of sound or no sound wave. |
False |
|
|
The _______ of a sound relates to the sound intensity or loudness. |
Amplitude |
|
|
The ______ of a digitized sound affects the accuracy of the sampled amplitudes being stored, |
Sampling Rate and Bit Depth |
|
|
In digital audio, the number of sample points taken per second is called the _______. |
Sampling Rate |
|
|
In digital audio, higher resolution means higher _______. |
Bit Depth |
|
|
How many levels of amplitude values does an 8-bit sound allow? |
256, 2^8 |
|
|
How many levels of amplitude values does a 16-bit sound allow? |
2^16 |
|
|
Generally, the audio CD music sampling rate is ______ and bit depth is _______. |
44100 Hz, 16 bits |
|
|
True or False: Eight-bit sound is generally considered to be more than adequate for recording music. |
False
|
|
|
What are audio file formats? |
WAV, AIFF, MP3, |
|
|
The reduction of a digital audio file size can be achieved by ________. |
Reducing the sampling rate, reducing the bit depth, and applying file compression techniques |
|
|
Higher ______ will result in larger file size. |
Sampling rate, bit depth |
|
|
Reducing the sampling rate from 44.1 kHz to 22.05 kHz will _________. |
Decrease the file size by half |
|
|
Reducing the bit depth from 16 bit to 8 bit will ________. |
Decrease the file size by half |
|
|
Reducing the number of channels from two (stereo) to one (mono) will _________. |
Decrease the file size by half. |
