---------- Forwarded message ---------- From: Jae Stutzman <[EMAIL PROTECTED]> Date: Mon, 30 Apr 2007 15:12:13 -0500 Subject: Re: Audio Jack 2.5 mm To: Brad Midgley <[EMAIL PROTECTED]>
My motorola E2 has a 3.5 mm jack. Same as the N800. On 4/29/07, Brad Midgley <[EMAIL PROTECTED]> wrote:
Wolfgang Judging from the high-resolution picture on the wiki it looks like the > phone has a very special 2.5mm connector with 4 separate electrical > connections (instead of the more common 3-connection version). If I'm > interpreting this correctly they are running both ground, > left-earphone, right-earphone and microphone in one plug. To me, this > seems much more convenient than the 2x 3.5mm plug method used for > computer headphones. hopefully it is a 4-conductor connector. unfortunately there are two ways manufacturers commonly wire up the 4-conductor 2.5mm connector. I have a set that is wired for the palm way of doing it that I plan to try. Nokia ships 4-conductor 3.5mm stereo headphones w/mic with their n800. The jack is backward-compatible with 3-conductor headphones. It's the first time I've seen a 3.5mm plug that could work with a microphone. It just might take a while to catch on. On the a2dp front, we got some help from Nokia on our codec and now it's running nicely in (mostly) 32-bit ops. It should be pretty easy for the cpu to encode stereo audio on the fly, but there is still a delay that we need to accommodate. Brad
_______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
