Hiding Pipes Behind A Pedestal Sink

Radio be able to phone

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measurement radio can overcome declarative surveys using the mobile phone (3G). That test
Ipsos MediaCell MediaCT with London, the United States and Italy. MediaCell uses the technique of "false echoes " inserted in the radio signal (techniquede watermarking type: non-audible signal).
United States, uses the Arbitron Portable People Meter (PPM ), a device that recognizes a piece of code inserted by the station in the signal and records the consumption of the panelists agreeing to keep them on or close to them this unit , in every moment of their lives. PPM that this can be advantageously replaced by a mobile phone is clear and the tests conducted by Arbitron are positive, however, several technical objections are raised:

• Reliability uneven micro smartphones: their microphones must be sensitive enough to recognize without error the radio signal is picked up where the panelist and assign it to the right station,
• life expectancy of the battery too short.

These technical improvements, important certainly being implemented, three issues remain whole it is even more important to note that these methods extend to the TV audience measurement (taking advantage of economies of scale, lowering unit costs: a single panel for two media).

• still insufficient penetration of smartphones.
• The problem of recruitment panels. The difficulties encountered in the U.S. by Arbitron for PPM accreditation by the MRC take the difficulties of recruitment panels.
• The new definition of hearing induced by such measure is broader than declarative surveys. The hearing measured after a telephone survey book or listening, knew a definition essentially conscious chosen of listening. However, the hearing measured by the PPM and any investigation by passive result of a de facto definition broader, including the hearing unconscious, not chosen (radio heard in a taxi in a pub, etc..).
• end it will still take into account the audience of the radio with mobile phones (including apps), and with computers.