Instore Radio – shopping radio – elevator music ?

Certainly not !

Well programmed content is not percieved annoying, but rather giving the right feeling and grove in a store, mall or in shopping heaven.

This can be achieved with video much better – yes or no ?

Well … talk to the consumer. Look at human nature. When you go shopping (at least groceries), you typically have a plan, you know what you want. You may even be under time pressure.

How do you react if you get distracted .. by your friend who wants to convince you to drink a coffee with you, or – by some video in a store forcing itself into your mind ?

Let’s face it. We – at least males … according to the cavemen 🙂 – can only focus on one thing. One MAIN thing …

Have you ever tried to listen to radio and work at the same time ? Yes ? Chances are high it worked for you, you even can gain focus and energy – and occasional ads, news etc don’t harm too much. But guess what – even not feeling defocused, you can remember what was spoken about.

Now – try the same thing with video — have you ever tried to watch TV while working ? If so – i almost bet it does not work out for you, unless the work is very mechanic and does not need your head (ironing for example).

A video wall in the fashion store, making lots of light and noise and pulling in the crowd from the street to purchase that jeans they see moving on the screen – that may actually work well. But in most stores, customers are already inside with a plan – a shopping list, and the idea to get things done quickly.

Audio – Shopping Radio – can help to get things done more quickly by having a positive influence on the mind, and well placed ads in the programming can trigger the right thoughts with the shoppers. Without them being distracted, annoyed or feeling hijacked.

Some scientist may figure out why that is the case. For me it is logical. While being on the hunt or in front of our cave – in earlier times – we were able to focus on prey or a task and still chat, talk, listen to the kids in the vicinity etc. That capability has not been lost … instore audio uses it !

Barix IP Audio devices stream shopping radio into thousands of stores every day, worldwide. They have been installed for a reason – low power, reliable, providing excellent audio quality and all that at a low price – no satellite dish on the roof, no media to be shipped. Instore radio over the internet or the company VPN is affordable, proven – and available from Barix.

Johannes

Visit the Barix Booth at the Digital Signage Expo, Feb. 24-26, 2009, Las Vegas Convention Center

Have you ever wished you could listen to Internet Radio in your car, send a live audio feed from anywhere to your studio, or have a mobile paging/intercom station for your Barix based campus emergency paging system ?

Well, this is now all possible and actually quite easy to achieve. The little gadget you need is called a “wireless access router or “3G Wireless router” or similar. Such devices are made by various manufacturers, and they typically allow you to connect Ethernet or Wireless, IP based devices to the internet via a mobile broadband connection.

Achievable data rates of course vary, depending on the technology, provider used, contract etc. Barix Audio devices support, depending on the model, various Audio Codecs, and with a modern 3G or 3.5G network connection, which you now get in many cities and areas of Europe, you can perfectly stream CD quality, stereo audio to a studio.
The typical CDMA or EVDO based networks, common in the US, are quite a bit slower (similar to EDGE in Europe, which you get almost everywhere now), but even these are quite suitable for audio streaming.

You can find a bit more information and one device suggestion on our wiki.

Hmm. how do you excuse being silent for months on a blog ?

Various reasons, i won’t bore you with them. But you can see the design has changed, and i will blog regulary now about interesting developments in the IP Audio area, as seen from a Barix view.

There is a new tool. The Barix wiki, you can find it here (http://wiki.barix.com). A lot of information about IP Audio applications, how to configure devices, background knowledge etc is already up there, and more is added every day. Give it a try – use the search function !
And please, let me know if you want us to cover any specific theme, either here on the IP Audio blog or on the wiki.

Johannes

As you probably have seen, Barix is supporting SIP since about 15 months now. A complete SIP stack and application, which is provided in source form, is in the Barix ABCL kit.

While requirements for an Audio over IP and a Voice over IP (VoIP) system are typically quite different, the Barix solution can serve both!

The SIP application can be used for emergency call posts on Annuncicoms (full duplex communication, initiated by a button press from a user), but also for output only applications, such as Paging speakers or interfaces to existing PA systems. In that case, the application supports multicast and also Auto Answer.

For use in Parking Systems or door access control, the built-in relay of an Annuncicom can be controlled via SIP Info.

So – where comes Audio over IP in place ?

Supporting MP3, AACplus, Ogg Vorbis and WMA (select hardware), the devices provide excellent capabilities for IP Audio distribution.

We are working on integrating both the Audio and Intercom/Voice/Paging functionality into one single application, when available, this will allow you to
do IP Audio distribution in high quality (for example, in Hotels, Cruise ships etc), yet, at the same time, have the device register as a VoIP “phone extension” on an IP based phone system.

For the Audio over IP functionality, the high quality music encoding can be used, and the devices automatically switch over to VoIP codecs when such functionality is required.

An alternative is to use one Barix device as a SIP gateway, allowing easy paging zone selection via “DTMF” (actually, SIP Info): The advantage here is that only one extension is used, which could save license cost on the PBX, and also enable synchronous paging on multiple devices via Multicast, which is not supported by many VoIP PBX’es so far.

A third option, available now, is the use of Bell Commander from Acrovista , a partner. It provides the same functionality on a PC, with an extensive Bell Scheduling and PC based Paging solution.

If you have an application where you need to deliver an RTP stream to multiple devices and your network infrastructure or source does not support Multicast, the Barix RTP replicator software may be the right thing for you.
Intended for Barix Audio over IP solutions, but useable with about any device or application or data, this software runs on either a Barionet or an Annuncicom, receives audio on a socket, and distributes the RTP packets to a list of up to 100 destination address/port numbers. You can also send to broadcast or multicast addresses.

Run on the Barionet, the application can easily forward a 100kbps IP Audio stream at 30-50 blocks per second to more than 100 destinations, with a delay of less than 20ms ! Using Barix hardware for this purpose has a lot of benefits: PC-Free technology, well below 4W power consumption, no moving parts, no themral issues, operational within 5 seconds of power up.

Customers of Barix use that solution since years to generate thousands of RTP streams to distribute IP Audio streams in real time.

.. and if you need to broadcast RTP in a “remote” network, the solution can be used as well … just configure only one target, the broadcast address, install the device in the remote location, and stream RTP to its receiving port. The RTP stream will be rebroadcasted in the destination network (multicast supported too, of course).

Questions ? Contact us !
Johannes

Barix will be represented by Powercorp, our Australian Distributor, and you can meet me personally at the booth, i will attend the whole show (here’s the link to the show:  Sydney Security Expo). So – if you are in Australia or travel to this show and want to talk about IP Audio solutions, a background music system over IP, or an IP Intercom system, then please come to our booth !

Johannes

Barix devices can be perfectly used for IP intercom and emergency call post purposes. Our free ICGraph application (download from the website) can serve well for a PC based central solution, and we also offer a hardware console now (made by our OEM, MS Neumann Elektronik, who builds fully certified evacuation and industrial/oil and gas intercom systems using our IPAM IP Audio module).

However, what do you do if you need to handle potentially hundreds or thousands of call stations ?

Well – our SIP firmware comes to the rescue ! It can be used on all our IP Audio devices and makes them compliant to the standard SIP functionality – but with a twist: the source code is open, so you can add special behavior to the devices (and we can also do for you !)

As the central management software/solution, you can use any SIP based PBX, such as (free) Asterisk. You can typically configure hunt groups, queues, nighttime calling plans etc in a PBX easily, and use standard IP phones as consoles. Why re-invent the wheel if this is all available?

Of course, you can monitor the whole system independently from the PBX, add emergency capabilities (“all call” without the use of the PBX), background music etc.

We are happy to help planning such a solution – applications are numerous, being it an IP based nurse call system, highway emergency call boxes, a PA and intercom system for public transport … or an IP Audio entertainment and communications system for a cruise ship.

Johannes

Hi,

This is a quick post in regards to how to present and calculate “analog” values or other things you want to express with a decimal point in the Barix Barionet and also on our Audio platforms (when programming in BCL):

Let’s assume you want to use input #1 on the Barionet to measure a current of 0.00-20.00 Amperes, and you have the necessary converter which delivers an analog voltage of 0..5V representing the full scale range of the measured current.

Connecting the converter to the Barionet will allow you to instantly see the corresponding voltage on the UI using a browser.

But .. how do you get the shown values converted to 0-20 Amp ?

The analog resolution of the current Barionet inputs is 10bit, so “full scale” is 1023. You probably want a higher resolution than just the integer part 0..20, so i would suggest to use 2 decimals.

Calculations can easily be done in integer if you just calculate/use the value, converted to 10mA units.

How ?

a=(iostate(501)*2000)/1024

…. this gets the value, multiples by the full scale value (20.00->2000) and divides by the 10 bit fullscale value, resulting in values which are 100 times the current Amp reading.

For example, a voltage value of 2.5V will be digitzed to 512, resulting in a value of 1000 (which is 10.00 Amp).

BCL supports a special format to easily display these values with a decimal point:

sprintf$(“Value: %.2F”,a)

will return a string with “Value: 10.00” content you can use for writing, displaying, storing.

If you just want to display the value on the UI using dynamic HTML tags, things are even easier, no programming in BCL is required ! The following term will emit (for our example) the string “10.00” on the Barionet if used in a dynamic HTML page:

&LIO(2,”%0.2F”,501,2000,0,1024);

Note the multiple parameters here. The decimal point is set in the format sting (%0.2F) to be 2 decimals. The first parameter after the format string is the I/O point (501), the second parameter is the multiplicator, the third parameter is an optional offset (if you put -1024000 here, you will have a reading of -10.00 …+10.00 for the example), and the term is divided by the last parameter before being displayed.

So, as with the above example, the value of IO point 501 (let’s assume it is 512) is taken, multiplied with 2000, nothing is subtracted, and the resulting value is divided by 1024. The result (1000) is then formatted as 10.00.

I hope this sparks some ideas how to use the products !

Johannes

It’s a well kept secret within Barix that the X8, our low cost “interface” widget, can do more than just contact closure interfacing via Modbus/RTU.

The X8 is quite a powerful little device ! In the “standard” firmware mode, it provides 8 universal 5V capable input/outputs which can be used as

• digital inputs with or without pull-up
• analog inputs with or without pull-up
• wiegand decoding input
  common formats, 4, 8, 26, 40 bit supported !
• Dallas Onewire Temp sensor interfaces
  one sensor per input, such as our Barix TS

All these functions are accessible via the Modbus/RTU interface.

But pssst – there are some more “special functions” hidden in the device, which we now intend to publish. The X8 can be put in “special” modes which then provide the following functions:

• 8 input analog encoder (8 bit) sending ASCII message (non-polled) on change or interval
• rotary switch encoder
• 8 bit keypad interface for the Annuncicom-100

We even do things like interfacing the X8 directly to the RS-232 inputs of Exstreamer and Annuncicom for volume control, channel selection etc !

In general, the X8 can be seen as a quite universal, low cost, 5V I/O interface for automation purposes. With its support for Modbus/RTU, Wiegand readers, Dallas Onewire temp sensors, it is suitable for many applications in the automation and data collection area.

Oops – for those who don’t know what a wiegand interface is … nowadays, the “de facto” standard interface for access control readers, keypads etc. Originally a wiegand reader was a specific card reader, able to decode cards which contained a wire pattern, based on the “wiegand” effect. Wikipedia has more, here is the link to the term Wiegand Interface.

If anyone is interested in these special functions, please let me know !

Johannes

Read this post to understand how an Exstreamer-100 can save you its purchase price per year in energy savings.

A Barix customer had PCs available at no cost to him. He thought about using them for audio distribution for instore audio purposes through his stores nationwide distribution. Fortunately, he evaluated the cost of operations. Besides updating, mechanical failures and other service calls, the operation cost in terms of energy and cooling jumped into his mind.

24*365=8760 hours per year (this year even 24 more !). With a power requirement of approx. 200W, translating into 1752 kWh/year, the cost for the operation of the PC, just the power!, is roughly 175$ (at an energy price of 0.10$/kWh – and this is likely to raise and not drop !).

In contrast, the Exstreamer-100, Barix’ best selling Audio over IP device, needs only about 2W – or 1% – of the above amount. So for $1.75/year you can operate it.

In addition to the energy cost, you need to add the cost of energy for cooling (your Rack), depending on where you are located this can add significantly to the bill.

Well – you can guess, for the customer this was a striking advantage, the Exstreamer roughly pays back for itself with the energy savings every year ! And so they bought 1200 pieces, for savings of roughly $210k, EVERY YEAR.

Consider installing Barix to conserve natural resources – go green !