Instruction Manual For Listening

[Otilia Mojarro]

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With an optional stick-on transmitter, additional IR-enabled devices can be remote controlled via the network connection, enabling users to control their audio sources without being in the same location as the device.

From FW V3.17. Supports all General Purpose Inputs (GPIs) on the Exstreamer 1000, Exstreamer 500 and Annuncicom 1000. The Inputs are used either to trigger streaming or to send contact closures to a partner device with SW loaded capable of decoding the information. (e.g. Streaming Client V2.10 or later).

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The middle frame shows current status information and permits the control of the streaming status, the simulation of the CTS input signal and the control of the RTS output. For details see the section below.

Lists all active TCP and BRTP connections to the Instreamer. All TCP connections are listed. That includes web page access, Internet radios, raw TCP, Shoutcast and Icecast connections. A TCP connection is listed if and only if it's in the "established" state.

The middle frame shows current status information and permits the control of the streaming status, the simulation of the CTS input signal and the control of the RTS output. The page is refreshed automatically.

IDLE: grey box = the unit is not sending any stream, neither providing data on listening ports (e.g. internet radio /xstream).ENCODING: green box = the unit is encoding audio, streaming to the configured destinations and/or serving clients with stream on the on configured network ports.

The page allows the easy configuration of the most common use case of a single stream entry. The same configuration parameters also appear under the Advanced Settings. Refer to these for more detailed information.

"send always" will stream always"send on CTS" will stream depending on the state of the CTS input."send on Level" will stream if the incoming audio signal is above the configured trigger level. The default level is -24dB. For send on CTS or send on Level, streaming can also be controlled via the SEND and STOP buttons on the HOME page. Default setting is "send always".

"BRTP" for the Barix extended RTP protocol. The IP address is ignored. An external device contacts this Instreamer on the given port and statelessly registers to receive the RTP stream. Up to 32 external devices may register and up to 32 RTP streams at 128kbit/s are supported.

If an active connection is required a Domain Name or an IP address can be provided. An example of a Domain Name is www.myserver.com. If an IP address is provided, e.g. 192.168.0.34, then this is used, otherwise the device attempts to obtain the IP address from a Domain Name Server.

A list of options is shown on the left together with the Network settings. The required page can be opened by selecting an option. Parameters can be changed at will on any of the pages. It is only necessary to press the Apply button once after all changes have been made. This chapter explains how to adjust the network settings of the Barix device.

The following diagram shows the network settings for automatic discovery (See IP address below). However, we recommend that you set a Static IP address so that the device does not have to get a new IP address at power on or reboot..

Attention: Make sure that you enter a free IP address. The device will check this and will not be available until the device using the same IP is disconnected or switched off. The command Ping can be used to ensure that a specific IP address is unused (i.e. No reply).

Type Of Service value used for RTP and UDP streaming. DSCP (Differentiated Service Code Point) supersedes the IP4 ToS value and uses the first 6 bits of the TOS field.The following table illustrates the DSCP values:

Choose the desired input source. Line mono and MIC input are mono, the other settings are stereo.The options available depend on the HW according to the table below. The Exstreamer 500 and Exstreamer 1000 have external Analogue to Digital circuitry which support input speeds of 32 and 48kHz. The selection provides a better input signal to noise ratio, however the A/D gain is fixed and cannot be adjusted. Default setting is "Line stereo".

If MPEG CBR encoding is selected the audio compression level (and consequently the audio quality) is selected by the "bitrate" field. Select the audio bit rate in kilobits per second. Please note that depending on the sampling rate not all bitrates are available. Default: "128kbps"

If MPEG VBR encoding is selected the audio compression level (and consequently the audio quality) is selected by this parameter. Choose between "0 lowest" and "7 highest" in steps of 1. The encoder quality table below shows the average bit rate in kilobits per second for the quality settings and sampling frequencies in kHz using mono input with MS-Stereo encoding disabled. The real bitrate depends from the audio content.

Select a value between -63dB and 0dB to start streaming. Open the Device status page and look for the Input peak value to get a hint for the trigger value. This page refreshes itself every few seconds.

Post Trigger Play can be adjusted to prevent a cut off when audio should be sent longer than detected. It defines the amount of time that the device will continue streaming after the actual trigger has been cleared.

Selects the contact closure event that triggers the streaming in "send on I/O" mode. "active closed" causes the device to stream when the selected contact is closed. "active open" causes the device to stream when the selected contact is open. Used to select whether the device streams when the selected control GPI is in the open or closed state.

The current state of the device's GPI is inserted into RTP and Internet Radio streams. (This also applies to the BRTP connection type which uses a RTP stream). This feature is compatible with Streaming Client firmware v02.10 and later.

You can enter the name of the Barix Instreamer here. This is returned by the DISCOVER command (see technical documentation). Default setting is "Instreamer". Used also as Shoutcast station name (icy-name).

Enter a radio path to listen to the transmitted stream of this Barix Instreamer using a device that is able to play MP3 radio stations (also PC software like WinAmp). The URL to connect is where x.x.x.x is the IP address of this device and /p is this Radio path. Example: The device can serve up to 6 concurrent radio streams. Default: /xstream

Configure the user name for Icecast source mode. This setting is useful for Icecast version 2 servers, which allow to maintain multiple users. If empty the default user name "source" is used. Default setting is empty, i.e. the user name "source".

There are up to 8 configurable stream destinations. Each one can be directed to a device, or a multi- or broadcast address. The first 4 entries allow a Domain Name to be defined as an alternative to an IP address.

The m3u and asx files have an alternative radio path defined which can be modified by providing an IP address and optional port number in entry #8 of the Streaming table. If the port entry is left as 0 then the normal HTTP port 80 is used.

Other configurations are also possible since in general entry #7 of the Streaming table modifies the first entry in the m3u and asx files and entry #8 modifies the second file entry.Limitation: Although eight entries can be configured only six concurrent radio servers are supported.

Up to 32 external devices may register and up to 32 RTP streams at 128kbit/s are supported. This maximum rate is approximately provided by the MP3 setting: Encoding+Frequency MPEG1/48kHz and Encoding quality 5.

Set the connection type to Icecast source to connect (TCP) to a single Icecast server. Enter IP and port of the Icecast server for the device to act as an Icecast source. When authentication is needed please read also section Icecast/Shoutcast (Security settings).

If an active connection is required within the first 4 entries, a Domain Name or an IP address can be provided. An example of a Domain Name is www.myserver.com. If an IP address is provided, e.g. 192.168.0.34, then this is used, otherwise the device attempts to obtain the IP address from a Domain Name Server.

On power up the active device connects to the passive device and tries to reconnect automatically if the connection is lost. If the connection is successful serial data can be passed end-to-end across the network.

Defines the port on which the serial interface can be accessed for serial gateway applications. Only when "Local port" is set to "0", the serial interface can be used as a command interface. If Destination IP is nonzero and the "Local port" is set to a value then this will be the source port of the TCP connection. If the Destination IP is nonzero and "Local port" is "0" a random source port is used. Default: "12303".

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