Sony SAC7000 User Manual

The glossary contains terms and their definitions that you may come across in the manual. This glossary not only includes 
terms associated with ACID® software, but also includes relevant industry terms. 

An ACID project file that contains all information regarding the project including track 
layout, envelope settings, and effects parameters. In addition, all audio files used in the 
project are embedded into the project file. 

This number is based on the Computer ID number of the computer on which the software 
is installed. Each computer has a unique number, similar to a license plate. When you 
register your copy of the software, Sony generates an activation code for you based on 
the Computer ID number. Once you enter the activation code, the ACID application will 
not time out. Since the activation number is based on the Computer ID, it is important 
that you have the software installed on the computer where you will be using it. 

A method of compressing audio data. Although the theory for compression using ADPCM 
is standard, there are many different algorithms employed. For example, Microsoft's 
ADPCM algorithm is not compatible with the International Multimedia Association’s (IMA) 
approved ADPCM. 

A type of distortion that occurs when digitally recording high frequencies with a low 
sample rate. For example, in a motion picture, when a car's wheels appear to slowly spin 
backward while the car is quickly moving forward, you are seeing the effects of aliasing. 
Similarly, when you try to record a frequency greater than one half of the sampling rate 
(the Nyquist Frequency), instead of hearing a high pitch, you may hear a low-frequency 
rumble. 

To prevent aliasing, an anti-aliasing filter is used to remove high-frequencies before 
recording. Once the sound has been recorded, aliasing distortion is impossible to remove 
without also removing other frequencies from the sound. This same anti-aliasing filter 
must be applied when resampling to a lower sample rate. 

ASIO™ (Audio Stream In/Out) is a low-latency driver model developed by Steinberg Media 
Technologies AG. 

ASF Stream Redirector file. See 

The attack of a sound is the initial portion of the sound. Percussive sounds (drums, piano, 
guitar plucks) are said to have a fast attack. This means that the sound reaches its 
maximum amplitude in a very short time. Sounds that slowly swell up in volume (soft 
strings and wind sounds) are said to have a slow attack. 

A decrease in the level of a signal. 

The Audio Compression Manager from Microsoft® is a standard interface for audio 
compression and signal processing for Microsoft Windows. The ACM can be used by 
Windows programs to compress and decompress WAV files. 

An audio file format developed by Apple®. 

When discussing audio equalization, each frequency band has a width associated with it 
that determines the range of frequencies that are affected by the EQ. An EQ band with a 
wide bandwidth affects a wider range of frequencies than one with a narrow bandwidth. 

When discussing network connections, refers to the rate of signals transmitted; the 
amount of data that can be transmitted in a fixed amount of time (stated in bits/second): 
a 56 Kbps network connection is capable of receiving 56,000 bits of data per second. 

A file that has tempo information added to it as a result of going through the 
Beatmapper® Wizard. 

APPENDIX E 

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