SoundAdvisor Model 831C
Understanding Recording Settings and Sound uality
18-7
FIGURE 18-6
Peak Overload
1 .5.2 Selecting an Appropriate Sound Recording Range
To select a sound recording range on the 831C, go to
Menu
Setup
Manager
Sound
.
We recommend using the
Normal
range for sound recordings unless
you anticipate that recorded sounds will exceed 110dBA. In that case,
choose
High
range.
1 .5.3 Choosing a ile ormat for Sound Records
To choose compressed or uncompressed sound records on the 831C, go
to
Menu
Setup Manager
Sound
.
Sound recordings are saved in WAV format (uncompressed) unless you
select the
Compression
checkbox. The compression setting saves
sound records in OGG format. This compressed format is most
portable—easily shared over email and text or as an alert notification.
However, it may also truncate OBA or other types of data.
While a WAV file requires much more space, this format preserves
frequency detail best. If you plan to examine octave bands or specific
frequencies of a sound recording, we recommend using the WAV
format.
The following table describes the approximate file size for a 60-second
sound recording. The WAV file sizes in Table 18.2 are accurate to the
nearest 50 kB. The OGG file sizes are approximations since every
compressed file will be unique.
Table 18.2 Sound Recording File Sizes Per 60 Seconds
Sample Rate
A
O
8 ksps
0.96 MB
200 kB
16 ksps
1.98 MB
350 kB
24 ksps
2.88 MB
450 kB
