Rustling noise on phonecalls

[Michael Zanetti]

Just in case anyone is still experiencing this problem:

I have been able to solve it now and have put all the information from this 
thread into the wiki.

https://wiki.openmoko.org/wiki/Alsa_state_a7

I hope this helps someone.

Cheers,
Michael

On Sunday 05 July 2009 15:19:41 Michael Zanetti wrote:
> Hi everyone,
>
> Lately my Buzz-fixed Freerunner began to make a rustling noise during
> phonecalls. I cannot hear it on my side but I constantly get complains from
> the persons on the other end. Some test calls here confirmed that the noise
> is really here and its really loud too.
>
> It is not the well known buzz. It sounds more like if a small animal were
> sitting in the mic and moving around during the phonecalls. Or if I would
> constantly rustle with a peace of paper against the mic.
>
> I have already opened it and checked if the buzz fix is there how it should
> be but everything seems to be ok. I've also cleaned out the dust from the
> mic hole but the rustling is still here...
>
> Judging from the time when other people complains started I think it
> happened after an upgrade of my SHR unstable. But I'm not really sure. It
> could also be that the GSM firmware upgrade to moko-11 somehow triggered
> this behaviour as I've upgraded it about 2 weeks before the complains
> started.
>
> This happens now with SHR as well as with om2009-testing5.
>
> I am using the gsmhandset.state file suggested by Jörg.
>
> Anyone has an idea what could be the cause of this. In this current state
> my freerunner is absolutely useless as a phone.
>
> Thank you all,
> Michael
>
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