Manual

Table Of Contents
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10.4 GUI Controls
Input Meter: 0dB to -63dB
Graphical Display Frequency: 20Hz to 20kHz (44.1 and 48kHz)
Graphical Display Gain: +10dB to -120dB (to -180dB with zoom)
Bitstream Level Trim: -12dB to 0dB
Trim Meter: 0dB to +10dB
Trim Display: -144dB to +10dB
10.5 Summary of Codec Features and Applications
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Codec
Features
Typical Applications
Typical
Bitrate
mp3
General purpose low
bitrate
• Apple iPod
• iTunes
128 kbps
(stereo)
mp3-HD
(mp3 High
Definition)
Lossless audio codec
with 16-bit depth and up
to 48kHz
• Home networks
• Music distribution and
production
• Archiving
Roughly half
the bitrate of a
16-bit
uncompressed
wav file.
AAC-LC
(AAC Low
Complexity)
High performance audio
codec for excellent audio
quality at low bitrates.
• Apple iPod
• iTunes
• ISDB television
broadcast (Japan)
128 kbps
(stereo)
HE-AAC
(High Efficiency
AAC)
High performance audio
codec for good quality at
bit-rates of 32-48 kbps
per channel.
• XM Radio
• Mobile music download
• Digital Radio Mondiale
64 kbps
(Stereo)
HE-AAC v2
High performance audio
codec for good quality at
bit-rates of 16-24 kbps
per channel.
• 3GPP music download
• Digital Radio DAB+
• Internet radio streaming
to mobile devices eg.
iPhone
48 kbps
(Stereo)
HD-AAC
(High Definition
AAC)
Lossless audio codec
with 24-bit depth and up
to 192kHz
• Home networks
• Music distribution and
production
• Archiving
Roughly half
the bit-rate of
a 24-bit
uncompressed
wav file.
Apple-AAC
High performance audio
codec for excellent audio
quality at low bitrates.
• Apple iPod
• iTunes
256 kbps VBR
(stereo)