Edirol R-09 - Manual (Page 27)

27
Recording
■ WAV versus MP3
WAV songs (*.WAV) store all sound information without compression; MP3 songs (*.MP3)
store songs using compression. Consequently, WAV songs have a better sound quality
recording than MP3 songs. On the other hand, MP3 reduce data volume by removing
frequencies that are hard for the human ear to hear.
When recording with MP3, the song size is smaller than the WAV setting recording, and a longer
recording can be made.
■ bps and bit
The higher the value, the better the sound quality.
The MP3 bps is the bit rate unit (bits per second).
The bit rate indicates data transfer rates in number of bits sent per second.
The WAV bit is used to represent the size of a sample.
The sample size indicates the amount of precision used in capturing subtle changes in the
sound. Larger sampling size values allow for more details of the sound to be expressed, and
result in sound that is smoother and more natural.
• Higher bps and bit values result in larger song sizes and shorter recording times.
• Software such as Windows Media Player cannot play back 24 bit WAV files.
Recording mode
Recording mode
MP3 64 kbps
MP3 96 kbps
MP3 128 kbps
MP3 160 kbps
MP3 192 kbps
MP3 224 kbps
MP3 320 kbps
WAV 16 bit
WAV 24 bit
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