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Rio Forge
:: Glossary of Digital Audio Terms
Bass
Bass is the particular low-range area of the sound spectrum where low musical notes and sounds are located.
Increasing the bass value will make the low vocals and drums more prominent in your music. You can select the
amount of bass in your music by selecting various Equalizer options.
Bitrate
Bitrate denotes the number of bits per second used by a digital music file. The size and quality of a compressed
digital audio file is determined by the bitrate used when encoding the file. Generally, the higher the bitrate used,
the higher the sound quality, and the larger the file size. For example, a bitrate of 96kbps (96,000 bits per second)
is generally thought of as “CD quality” for WMA audio files, and takes up about 0.75 megabytes (MB) per minute of
music. At a 64kbps bitrate, the sound quality of WMA is similar to that of an FM radio signal, but approximately two
minutes of music will fit in 1MB of space.
Codec
Depending on the context and kind of technology involved, codec can be defined as a compressed digital audio file
format (like MP3, WMA, etc.), a “coding/decoding” chip used to translate between digital and analog transmissions
(used in modems), or a compression/decompression algorithm. Codecs compress audio data into a file, often for
efficient transmission over a network, and then decode it for playback. While all the codecs perform similar
compression of digital audio, there are differences in the technology.
The Rio Forge supports the following digital audio codecs:
•MP3
•WMA
•Audible
DRM
Digital rights management (DRM) is a type of encryption that is intended to protect copyrighted tracks and is
added to many commercially purchased music files during the encoding process. DRM encryption frequently
restricts the number of times a file can be downloaded, transferred to portable devices, or burned to CD. Copy
protected music using DRM should be transferred to the Rio Forge using Rio Music Manager.