WALKMAN User Guide
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Top page > Specifications > What are Format and Bit Rate > What is audio format?
What is audio format?
What is copyright protection?
What is bit rate?
What is the relationship between bit rate, sound quality, and storage size?
Audio format refers to the method used to import audio data from the Internet or audio CDs to a
computer, to save as an audio file.
Common formats include MP3 and WMA, etc.
MP3:
MP3 (MPEG-1 Audio Layer3) is a common audio compression technology developed by
the MPEG working group of the ISO (International Organization for Standardization).
MP3 can compress audio files to about 1/10 the size of standard CD audio files.
WMA:
WMA (Windows Media Audio) is a common audio compression technology developed by
Microsoft Corporation. The WMA format produces the same sound quality as that of the MP3
format with a smaller file size.
AAC:
AAC (Advanced Audio Coding) is a common audio compression technology developed by
the MPEG working group of the ISO (International Organization for Standardization). The AAC
format produces the same sound quality as that of the MP3 format, with a smaller file size.
Linear PCM:
Linear PCM is an audio recording format without digital compression. You can
achieve CD sound quality by recording with this format.
Hint
For details on supported file formats and bit rates, see
[Details]
.
What is copyright protection?
Certain music files or video files, etc., that you purchase from a music download service site, etc.,
may have access control technologies applied, such as encryption, to limit usage and duplication
of the material, in accordance with copyright laws.
What is bit rate?
Bit rate refers to the amount of data used to store each second of audio, expressed in kbps (kilo
bits per second), such as 64 kbps. Generally, higher bit rates provide better sound quality, but
require more storage space for the same length of audio.
What is the relationship between bit rate, sound quality, and
storage size?
Generally, higher bit rates provide better sound quality, but require more storage space for the
same length of audio, so you can store fewer songs on the player.
Lower bit rates enable you to store more songs, but at a lower sound quality.
Note
If you import a song from a CD to your computer at a low bit rate, you cannot improve the
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Summary of Contents for WALKMAN NWZ-E353
Page 18: ...What is video format What is photo format Back to top Copyright 2010 Sony Corporation 18 ...
Page 34: ...Copyright 2010 Sony Corporation 34 ...
Page 44: ...Back to top Copyright 2010 Sony Corporation 44 ...
Page 48: ...Playing music Back to top Copyright 2010 Sony Corporation 48 ...
Page 50: ...Viewing photos Photos Back to top Copyright 2010 Sony Corporation 50 ...
Page 56: ...Back to top Copyright 2010 Sony Corporation 56 ...
Page 62: ...Back to top Copyright 2010 Sony Corporation 62 ...
Page 70: ...Related Topics About the karaoke function Back to top Copyright 2010 Sony Corporation 70 ...
Page 80: ...Copyright 2010 Sony Corporation 80 ...
Page 92: ...Back to top Copyright 2010 Sony Corporation 92 ...
Page 102: ...Using the video option menu Back to top Copyright 2010 Sony Corporation 102 ...
Page 133: ...Back to top Copyright 2010 Sony Corporation 133 ...
Page 173: ...Back to top Copyright 2010 Sony Corporation 173 ...
Page 189: ...player when you start or restart the computer Back to top Copyright 2010 Sony Corporation 189 ...