Operation Manual

17
The outstanding features of the R-09
Chapter
1
Situation practical use technique
Chapter
2
Chapter
3
Applied technique
Chapter
4
Appendix
Practical
Guide to the
edirol r-09
Setting
sound quality
Since the purpose of recording a meeting is to
be able to hear what is being said, there is no
strict requirement for good sound quality. More
importantly, the recording will often be for an
extended time, so MP3 is probably the best
format.
MP3 is recommended
for extended recordings
If you need to record for a longer time, set the
bit rate to 64 kpbs. Although this level of com-
pression will degrade the quality, it’s sucient
for recording conversations during meetings.
See p.30-31 in the Owner’s Manual for setting
the recording mode.
☞
Using an external
microphone for lectures
When recording lectures or other presentations
where there’s only one speaker, use an external
microphone (CS-15), sold separately, for better
performance.
The microphone captures sound from a specic
source, so you can reduce the sounds from the
audience.
The external microphone can also be setup as shown
Using Auto Gain Control (AGC)
The AGC automatically changes the recording level according to the volume of the sound being
recorded. You may think that this convenient feature should be left on all the time.
However, there are times when using AGC is not ap-
propriate. This is especially the case when you’re trying
to capture the true nature of a sound. For example, if
you record a piano recital with AGC on, you would lose
all the inection and dynamism of the piano because
the sound would be recorded at the same volume
throughout. Also, the recording level is constantly
being increased and decreased, giving the recording a
less natural sound.
For meetings and lectures, it’s best to keep the volume
even so that you can capture what’s being said. This is
when the AGC feature can be best put to use.
Turning AGC on causes
the recording level
to be automatically
adjusted
Point
3
Point
4