Axis Q1755 User Manual

20
AXIS Q1755/-E - Video & Audio
Audio Settings
This section describes how to configure the basic audio
settings for the network camera. The audio functionality is
enabled under Video & Audio > Video Stream > Audio.
Audio Channels
Audio mode - The available audio modes are
• Half duplex. Audio can be transmitted in both direc-
tions between the network camera and the client
computer, but only in one direction at a time. You
must actively transmit/receive sound using the
Talk/Listen button available on the Live View page
(see
AXIS Media Control toolbar, on page 9). In
Push-To-Talk mode, click and hold the button to
speak and release it when finished speaking. In Toggle mode, click once to switch between speaking and listening.
Note:
The Talk/Listen button mode is configured from the Audio tab in the AMC control panel (see AXIS Media Control
(AMC), on page 12).
• Simplex - Network Camera speaker only. Audio is transmitted from the client to AXIS Q1755/-E and played by the
speaker connected to the camera. To send audio, the Talk and Microphone buttons in the AMC toolbar must both be
enabled. Click either button to stop audio transmission.
• Simplex - Network Camera microphone only. Audio captured by the microphone connected to the network camera is
transmitted from the camera to one or more clients.
Audio Input
An external microphone or a line source can be connected to the Audio in the connector of the network camera. If an external
microphone or line source has been connected, the internal microphone will be automatically disconnected. The audio source
must be set to Microphone or Line depending on the connected device.
Notes:
• To prevent unauthorized listening, the internal microphone can be disabled by inserting a plug in the Audio in
connector.
• The internal microphone on AXIS Q1755-E cannot be used.
The Enable microphone power option provides DC power for an external microphone. If using a small electret condenser
microphone such as a clip-on microphone or a PC microphone, enable this option.
Notes:
• If Enable microphone power is unchecked (disabled), the internal microphone is also disabled.
• To use a high impedance dynamic microphone, do not enable microphone power. Microphone power will not harm the
microphone; if you are uncertain, try switching it off and on. To use a professional microphone requiring 48V phantom
power, you need an external power supply and a balanced-unbalanced converter (audio transformer) in between.
If the sound input is too low or too high, adjust the input gain for the microphone attached to the network camera.
Select the desired audio Encoding format G711 μ-law, G726 or AAC.
Select the required Sample rate (number of times per second the sound is sampled). The higher the sample rate, the better the
audio quality and the greater the bandwidth required.
Changing the Bit rate changes the audio compression level and hence audio quality. A higher bit rate can improve audio
quality but requires more bandwidth.

Axis Q1755 Specifications

General

Maximum resolution	1920 x 1080 pixels
Camera shutter speed	1/10000 - 1/2 s
Minimum illumination	2 lx
Sensor type	CMOS
Optical sensor size	1/3 \
Sample rate	16 kHz
Supported network protocols	IPv4/v6, HTTP, HTTPS, QoS Layer 3 DiffServ, FTP, SMTP, Bonjour, UPnP, SNMPv1/v2c/v3(MIB-II), DNS, DynDNS, NTP, RTSP, RTP, TCP, UDP, IGMP, RTCP, ICMP, DHCP, ARP, SOCKS, Pelco-D
Power source type	PoE
Power over Ethernet (PoE)	Yes
Power consumption (typical)	17.4 W
Ethernet LAN (RJ-45) ports	1
Dimensions (WxDxH)	186 x 85 x 211.4 mm
Power requirements	20 - 24 V AC
Certification	EN 55022 Class B, EN 61000-3-2, EN 61000-3-3, EN 55024, EN 61000-6-1, EN 61000-6-2, EN 60950-1, FCC Part 15, Subpart B, Class B, VCCI, Class B ITE, C-tick AS/NZS CISPR 22, ICES-003, Class B
Processor model	ARTPEC-3
Flash memory	256 MB
Internal memory	128 MB
Operating temperature (T-T)	0 - 45 °C
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Weight	985 g