Thread: Boost N900! :)
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SavageD is offline SavageD
2011-01-08 , 21:16
Posts: 436 | Thanked: 406 times | Joined on Jan 2010
#368
Originally Posted by punto View Post
There's no risk to the N900 - it just means that boosting the gain introduces even more distortion into the mix - to a level even beyond the serious amounts already present on the N900 (at least with PR1.3). We're not talking a bit more compared to other typical MP3 players, it's a LOT more.

Someone needs to fix pulseaudio or whatever's responsible for this - I'm pretty definite it's not the hardware.
I'm planning on stopping this project soon anyway. I'll be making just three more patches, One that increases the earphones, bluetooth headset, and speakers (just a bit). I fixed the trebble on the default n900 headsets they sound great now ....as for the other headsets, I was only able to reduce the distortion issue.

I have yet to finish documenting my findings, but I'm trying to finish it up today to upload with the new script which I'll probably post tommorow.

You asked me how the audio system worked before, honestly the N900 audio system is quite a mess and very hard to explain. Files are interrelated and such...the system is a complete mess.

The volume has little to do with the wiring, looking at the audio system I can see that the N900 is set to purposefully make alsa mixer ignore headphones (not to be mistaken with headsets).
This has lead me to believe that the distortion issue is quite simply a hardware problem. Nothing I have tried gets rid of the distortion, I'm only able to decrease/mask it, but who knows maybe with time I'll get rid of the problem.
 

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