I have been perturbed by the annoyance of not being able to connect my favorite headphones to
my Pxxx mobile phones. The common issue that most mobile phone device users share is the
inability to use their unit (equipped with standard 2.5 mm input jack) with common audio devices
that more likely utilizes 3.5 mm output jacks. There are no BT audio device patchers in the market that
would eliminate the use of cables just yet. The only promises I have seen on the
drawing board thus far is a streaming mp3 BT stereo headset and a BT audio jack adapter. With that said,
I still don't believe we will ever see full compatibility with all of our common audio devices accross the board.
So I took about 1/2 hr of my time to modify some electronic components to enable compatibility with
the P800/P900 without the use of 'extra adapters'. The main focus of this project was to simply
'down convert' all standard 3.5 mm output jacks to 2.5 mm output jacks.
Here are the audio components I worked with below:
Components:
- External Mini Speakers (Flat Planel)
- External Mini Speakers (Clamshell)
- Portable Speaker Amplifier (AC/Battery Operated)
- Stereo Headphones (Foldable)
- Stereo Audio Patch Cables
The speakers are very handy when trying to play audio/video from the Pxxx source speakers. Despite the
audio levels of the encoded audio/video source the sound is never loud enough in a noisy environment. With
that said, I added a portable amplifier to boost the output audio signal by at least 5 times that of what the Pxxx
speakers can produce. The results were phenomenal. The Pxxx was still audible from one end of a crowded
train car to another where the Pxxx speakers faded out at less then 1 meter away. There are two types of speakers
pictured below. One is a flat panel and the other is a foldable clamshell type. The clamshell speakers are
small enough to fit into my pockets. The flat panel is perfect for viewing video files in the office or home. I have
modified the clamshell speakers to plug in directly into the Pxxx phones or through the amplifier. I find the
clamshell more suitable for listening to MP3s through Unreal Player in 'flip closed' mode. The audio patch cable
attaches directly to the Pxxx and has a 3.5 mm output jack that connects to any audio device
(ie speakers,PC,stereo receiver,etc.). The headphones were generic foldable stereo headphones that I also
tweaked to attach directly to the Pxxx phones. All the above eliminates the use of an audio jack adapter. I tested
them with Unreal Player and the standard Pxxx PV player. Leisure time has now become more of a pleasurable
experience with my Pxxx series phones with these new additions.
Pics:
4:3 (Standard) and 16:9 (Widescreen) w/ amplified stereo mini travel speakers audible in any crowded room.
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