Руководство По Обслуживанию для Cisco Cisco Unified MeetingPlace Audio Server
Cisco MeetingServer 5.1 System Manager’s Guide
177
Cisco Systems
March 2003
Telephone Type
Quality Expectations and Issues
Air Phone
Fair. Often suffers from clipped and distorted speech.
Background noise is typically quite high. User should use muting
whenever possible.
Background noise is typically quite high. User should use muting
whenever possible.
Room Setting
An important factor in improving sound quality for a conference is the room
setting of each of the individual participants. Table 0-2 summarizes how
various room environments affect sound quality.
setting of each of the individual participants. Table 0-2 summarizes how
various room environments affect sound quality.
Table 0-2 Sound Quality for Different Room Settings
Room Setting
Quality Expectations and Issues
Single Office
Excellent. Background noise should be nonexistent, and acoustic
echoes should be minimal. Speakerphone use should not be a
problem.
echoes should be minimal. Speakerphone use should not be a
problem.
Open Cubicle
Average. Background noise can be significant at times.
Speakerphone use should be discouraged for this room setting.
Speakerphone use should be discouraged for this room setting.
Small Conference Room
Excellent. These rooms generally have little background noise
and minimal acoustic echo problems. Speakerphone use should
not be a problem.
and minimal acoustic echo problems. Speakerphone use should
not be a problem.
Large Conference Room
Average. Should not pose a problem, but a speakerphone is
generally required. With these units, groups of 10 to 15 can be
handled comfortably, although extension microphones are
recommended. Check the room for hard surfaces and reflective
walls, which produce acoustic echo.
generally required. With these units, groups of 10 to 15 can be
handled comfortably, although extension microphones are
recommended. Check the room for hard surfaces and reflective
walls, which produce acoustic echo.
Executive Board Room
Average. This type of room presents a challenge to audio quality.
Board rooms are usually large with highly reflective surfaces.
Because acoustic echo problems can be expected, it is highly
recommended that you use audio systems (microphones and
speakers) and a high-performance echo canceler.
Board rooms are usually large with highly reflective surfaces.
Because acoustic echo problems can be expected, it is highly
recommended that you use audio systems (microphones and
speakers) and a high-performance echo canceler.
Auditorium
Average. Problems similar to those of the board room, with the
additional problem of increased ambient noise. The use of high-
performance audio equipment is essential.
additional problem of increased ambient noise. The use of high-
performance audio equipment is essential.
Lab or Switch Room
Fair. This environment is the most difficult for sound quality, due
to a high level of ambient noise. Muting of the lines in this room
type is highly recommended.
to a high level of ambient noise. Muting of the lines in this room
type is highly recommended.