M-AUDIO MicroTrack II - Manual (Page 11)

User Guide 10 MicroTrack II
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Rec Time Available: This is not an adjustable parameter—it merely shows the space available on the media
in MicroTrack II When you select this option, it may take a moment to calculate the available time and display
it on the screen This information is provided to help you verify you will have enough recording space before
recording, and make a choice of which recording parameters to use If you see that you’re getting low on CF
card or Microdrive space, you can choose to use MP3 encoding instead of WAV to yield recordings with
smaller file sizes Keep in mind that this feature only accounts for recording space when determining record
time—it does not account for battery life
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Encoder:
WAV Chooses WAV as the recording format This format is uncompressed and will yield the highest
quality recordings Be aware that the files created in this format can be quite large Also select this
option to create BWF compatible files with position markers
MP3 Selects MP3 as the recording format This format compresses the audio data to yield smaller file
sizes
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Sample Rate: The options available in this menu will depend on the Encoder selected above Keep in mind
that file sizes will increase as the sample rate is increased
• Options (WAV):
44 1 / 48 / 88 2 / 96: These are the available sample rates when WAV is selected as the Encoder
Tip:
44.1 kHz: This is the standard Audio CD sample rate.
96 kHz: This yields the best sound quality by improving high frequency
response.
• Options (MP3):
44 1 / 48: These are the available sample rates when MP3 has been selected as the Encoder
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Bits: Like Sample Rate, the options shown in this menu will depend on the Encoder selected above Keep in
mind that file sizes will increase as this setting is increased
• Options (WAV):
16 / 24: When WAV is selected as the Encoder, this menu allows you to set the bit-depth of your
recording
Tip:
16-bit WAV: This is the standard audio CD bit depth.
24-bit WAV: This yields the best sound quality by maximizing the dynamic
range.
• Options (MP3):
96 / 112 / 120 / 160 / 192 / 224 / 320: When MP3 is selected as the Encoder, this value will
determine the bit-rate of the file
Tip:
96kbps MP3: This will effectively capture voice dictations.
160kbps MP3: This offers reasonable quality for popular music.