EXTERNAL CONNECTORS |
DC POWER (USB Mini-B) |
Connect to a powered USB port on TV or USB charger (not included)USB Type A to USB Mini-B cable is included (3’ length) |
Audio Inputs (Three options for each channel) |
Source is auto-detected/selected with this order of priority if multiple cables accidentally plugged in to a single channel: TOSLINK connector for digital optical RCA connector for digital coax 3.5mm Stereo connector for analog audio |
AVAILABLE HARDWARE CONFIGURATIONS |
Number of Channels |
1 (stereo) |
Optional Model mono operation |
2 mono channels using 3.5mm analog audio connector only |
POWER |
DC Power Draw |
+5VDC 320mA typical |
Power Adapter |
No power adapter is included – use an available powered USB port on TV/etc., or use a USB charger (purchased separately) |
AUDIO INPUTS |
Digital Optical Input |
S/PDIF signal format over fiber-optic TOSLINK cable
Encoding: Uncompressed PCM, interleaved stereo
Sample Rates supported: 48KHz |
Digital Coax Input |
S/PDIF signal format over coaxial cable
Input Signal Level: 0.55 Volts P-P typical
Input Impedance: 75 Ω
Encoding: Uncompressed PCM, interleaved stereo
Sample Rates supported: 48KHz |
Analog Input |
L/R Stereo Channels into stereo 3.5mm connector, AC-coupled in APB
Input Signal Level: 2.4 Volts P-P maximum
Input Impedance: 12 KΩ typical |
Audio Gain Adjustment range |
+20 to -100 dB in 0.5 dB stepsIndependent adjustment for each channel available through browser- based configuration pages |
MONO operation |
Each 3.5mm stereo analog connector accepts 2 independent mono signals through a provided adapter. Digital coax/optical connectors are present but shouldn’t be used.
NOTE: Mono-capable units are separate models |
AUDIO STREAMING |
System Latency |
115ms typical
This is based on minimal delays in the network/WiFi and thus represent sum of latencies in the AudioFetch Express, AudioFetch App, and mobile device Operating System only. WiFi, and mobile device performance can affect latency. Some Android devices have increased latency. |
NETWORK CONNECTIVITY |
WiFi |
AudioFetch Home contains built-in WiFi adapter |
Ethernet |
Not available |
WiFi |
Frequency Range |
2.412 GHz – 2.484 GHz |
Wireless Standard |
802.11 b/g/n |
Transmit Power |
802.11b: +20dBm (max)
802.11g: +18dBm (max)
802.11n: +15dBm (max) |
Range – Open Air Test(in Access Point Mode) |
130 feet typical |
Security |
None (default) / WEP / WPA-PSK / WPA2-PSK / WAPI |
Encryption |
WEP64 / WEP128 / TKIP / AES |
NETWORKING CONFIGURATIONS |
Networking Configuration |
Current version is factory configurable for the supported modes, future versions will be re-configurable in the field |
Access Point Mode (default) |
AudioFetch Home operates as a self-contained WiFi network with SSID: AudioFetch Home |
Client Mode |
AudioFetch Home connects as a client to pre-existing WiFi network |
Client Mode IP Address |
Auto configured via DHCP (default)
Can be set to static IP address (using browser-based configuration) |
Cooperative Mode |
Multiple AudioFetch Home devices connect (Client Mode) into a WiFi network which can be either pre-existing or one of the AudioFetch Home devices operating in Access Point Mode |
Cooperative Mode number of AudioFetch Home devices |
Current version is factory configurable for up to 4 AudioFetch Home devices operating together (on same network) |
Access Point Mode with Internet Access |
AudioFetch Home operates simultaneously in Access Point Mode and connected to a pre-existing WiFi network (with Internet Access) in client mode |
NETWORK BANDWIDTH |
Bandwidth consumed by each audio stream (stereo) |
50 UDP packets per second averaging 201 bytes each (includes the IP header but not physical layer header)Therefore, UDP (+ IP header) bandwidth is: 10050 bytes/sec (average) for each audio stream (~80Kbps)Discovery and keep-alive control traffic is negligible compared to this |
Bandwidth consumed by each audio stream (mono) |
50 UDP packets per second averaging 121 bytes each (includes the IP header but not physical layer header)Therefore, UDP (+ IP header) bandwidth is: 6050 bytes/sec (average) for each audio stream (~48Kbps)Discovery and keep-alive control traffic is negligible |
MOBILE APP |
Availability |
Search for “AudioFetch” in Google Play Store or iTunes App StoreCost: Free |
Android Compatibility |
3.0 and newer |
iOS Compatibility |
6.0 and newer |