Hearing your customers:

How New Zealand’s Wellington Railway Station ticket counters benefit from a Security Window Intercom from AIPHONE

Railway Stations are notoriously difficult places to have intelligible PA systems and Intercoms due to the high levels of background noise and echoes. At New Zealand’s Wellington Railway Station, six ticket counters are located in an open concourse area with a very high roof, exposing them to all kinds of noise and ambient sound. In the past, the concourse area would be filled with announcements over the PA system, people talking, and general background noise, making it an extremely difficult environment to have an intelligible intercom system for the ticket counter staff. Several commercial systems as well as a locally-made custom system have all been tried but failed when the back ground noise levels rose above ‘normal’. This was particularly noticeable in the afternoon when the local girls’ school released its pupils and they used the Railway Station as a meeting place before going home. The high pitched girls’ voices interfered with previous intercom systems, resulting in the ticket counter staff’s inability to hear or be heard by their customers.

To the staff of Toll Holdings it seemed like Aiphone’s Security Booth intercom may offer the solution they needed and an on-site demonstration was quickly arranged. When the demonstration system was installed for a short trial period the staff found that it worked extremely well and they appreciated the system’s ability to have the background noise level filtered/ eliminated.

Six Aiphone Security Booth Intercom systems were ordered and installed and the staff was trained in its operation. During training, a major obstacle to overcome was teaching staff to just speak normally and not as they had done in the past, which was shouting so they could be heard by their customers!

Toll Holdings in New Zealand has a large number of train stations and ticketing sites that require security and intercom, and the Aiphone Booth Intercom is being considered for each of these as they are being upgraded.

 

For more information please visit www.audioproducts.com.au or www.aiphone.com.

 

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Helpful Hints

Headphones impedance
The two important electrical specifications for a pair of headphones are the impedance of the phone transducer itself and its on-the-ear sensitivity. So-called low impedance headphones may vary from 75 ohms up to about 150 ohms. Phones in this impedance range may be directly plugged into the headphone jack routinely found on recording and playback equipment. Higher impedances, such as 600 ohms, are more useful in studio installations where many units may be wired in parallel for studio monitoring applications. Headphone sensitivity is usually stated as the in-the-ear sound pressure level produced by one milliwatt (mW) of audio input. Typical sensitivity ratings of AKG headphones run from 88 dB per mW to 105 dB per mW. You can see that very little power is needed to drive a stereo headphone pair to very high listening levels.

 



 

   

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