Macht keinen Muck

by Volker Weber

Da das blaue Monster nicht korrekt mit dem iPhone funktioniert, habe ich es mal in andere Geräte gestöpselt. Nokia Lumia und HTC Trophy: geht. Alles Apple: geht nur ein bisschen. Kein Mikro, keine Fernbedienung. Macht komische Sachen, wenn man auf die Knöpfe am Monster drückt. Nokia N8 sagt "unsupported accessory" und ignoriert das Monster. Nokia N9 macht keinen Muck und tut so, als habe man nichts eingestöpselt. Tolle Wurst.

Comments

Apple Klinkenstecker (von der Spitze aus): Left, Right, GND, Mic
Rest der Welt Klinkenstecker: Mic, Right, Left, GND

Hatte das Problem mit meinem MacBook Pro 13", welches ja nur eine kombinierte Buchse hat ich aber 2 Dinge einstoepseln will.

Sascha Reissner, 2011-12-07

Und Nokias wohl gerne Left, Right, Mic, GND

Sascha Reissner, 2011-12-07

Das N9 und die Symbian sind noch mal anders. Mit dem Headset ist das leicht zu lösen: mehr als ein Kabel. Das hat nämlich an beiden Seiten Stecker.

Volker Weber, 2011-12-07

http://en.wikipedia.org/wiki/Open_Mobile_Terminal_Platform
"The Open Mobile Terminal Platform (OMTP) was a forum created by mobile network operators to discuss standards with manufacturers of cell phones and other mobile devices. During its lifetime, the OMTP included manufacturers such as Huawei, LG Electronics, Motorola, Nokia, Samsung and Sony Ericsson"
OMTP = Left/Right/Mic-Control/GND

In the early days of mobile telephony the device brands were also leading the accessory market (Nokia still does so in mobile headsets in various countries) but once the iPhone launched this slowly started to change. Apple did never follow the headset jack specifications defined by the OMTP group (as already highlighted above). The Apple specs are called 'non-OMTP' in the industry = Left/Right/GND/Mic-Control

Since Apple has a strong pull for accessory maker (high attachment rates and high average spent per core device owner) the 'non-OMTP' version became more or less a competing standard, if not the de-facto standard for todays headsets (even for the ones not MFI certified). Meaning, apart from Nokia, Sony Ericsson and a few odd Samsung galaxy phones (Asia versions mainly) most smartphones these days follow Apple (as far as I am aware).

In some cases device maker use authentication chips to accept accessories or enable features (Apple requires so for their MFI certifaction to be displayed on packaging although most headsets without the chip work as well). Another example is the HTC Sensation/Rezound that enables special on-board Beats Audio features only for the bundled headset.

Michael Held, 2011-12-12

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