Sound-devices 702T Manual do Utilizador Página 41

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702T User Guide and Technical Information
39
.MP2
MPEG-1 Layer II is a lossy compression algorithm often used for speech recording.
What to consider when recording to MP2:
• time code is enabled (with BEXT or iXML data)
• mono recordings are not allowed with bit rates above 192k
• limits your sampling rate to 48 kHz
• limits your bit depth to 16 bit
• limits recording to only one storage medium at a time
.MP3
MPEG-1 Layer III is a lossy compression algorithm often used for music.
What to consider when recording to MP3:
• time code is enabled (no BEXT or iXML data)
• limits your sampling rate to 48 kHz
• limits your bit depth to 16 bit
• limits recording to only one storage medium at a time
• Auto save feature does not apply to MP3 files, if power is lost during recording the file maybe
invalid.
The chart below indicates the limitations of all file types available on the 702T.
File
Format
Bit Depth
(bits)
Sampling Rate - kHz
(Bit Rate – kbps)
Maximum
Number of
Tracks
File
Extension
Multi-
Medium
Recording
PCM 16 or 24 32 to 192 2 .WAV yes
FLAC 16 or 24 32 – 96 2 .FLAC no
MP2 (mono) 16 32, 44.1, 48
(64, 96, 128, 160, 192)
1 .MP2 no
MP2 (stereo) 16 32, 44.1, 48
(64, 96, 128, 160, 192, 256, 320, 384) *
2 .MP2 no
MP3 (mono) 16 32, 44.1, 48
(32, 64, 96, 128, 160, 192, 256, 320)
1 .MP3 no
MP3 (stereo) 16 32, 44.1, 48
(32, 64, 96, 128, 160, 192, 256, 320) **
2 .MP3 no
* For MP2-Stereo, the per-channel bit rate is half of the selected bit rate.
** MP3-Stereo uses Joint Stereo Coding, which improves per-channel resolution over MP2-Stereo but
can not be quantified into a specific per-channel bit rate.
iXML
The 702T includes iXML (revision 1.5) data in addition to the broadcast wave extension data. For
iXML-aware software applications this data is available. For applications that don’t recognize iXML,
this information is ignored.
Notes
iXML supports notes fields. From the File Viewer select OPTIONS, then Notes.
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