Information about linux drivers for voice in neofreerunner........
Ed Kapitein
ed at kapitein.org
Wed Jan 18 18:29:47 CET 2012
Hi Arslan,
A while ago i tried to write a software modem to communicate between 2
freerunners.
One of the things that went wrong was a 90 degree phase shift in the
audio signal.
So when you write audio software, please keep in mind that it might get
phase shiffted.
Kind regards,
Ed
On 01/18/2012 06:19 PM, Arslan Abbasi wrote:
> Simple recording and playback of recorded sounds can be done but, can
> anyone give me some clue if it has enough
> processing power to do real time voice processing and transmitting
> processed voice at the same time. And please, if anybody has any code
> related to voice manipulations on this phone or in particular real
> time voice processing while transmitting through gsm, share it. It'll
> be very nice of you.
>
> @Dave... Encrypting gsm is legal in our country, and as far as i think
> encryption shouldn't be illegal coz voice/data is your private
> property so protecting it further shouldn't be a problem with anybody
> as long as it doesn't affects their systems.
>
> On Wed, Jan 18, 2012 at 7:28 PM, Dave <dave.tv at gmail.com
> <mailto:dave.tv at gmail.com>> wrote:
>
> Hi,
>
> I don't know the laws of your country, however, encrypting GSM
> might be illegal.
>
> Dave
>
>
> On Wed, Jan 18, 2012 at 9:28 PM, Thomas Zimmermann
> <ml at vdm-design.de <mailto:ml at vdm-design.de>> wrote:
>
> On Wednesday, January 18, 2012 08:56:45 Radek Polak wrote:
> > On Wednesday 18 January 2012 07:16:06 Arslan Abbasi wrote:
> > > The Inter IC sound pins interfaced with the audio codec.
> > > I need help regarding any sound manipulation on this
> platform, if any
> > > code is available.
> >
> > IIRC there was a program which recorded phone call if this
> is what you
> > need. I dont know how it's done on GTA02 but on GTA04 phone
> modem is just
> > another sound card which can be used by alsa programs. E.g.
> you can play
> > mp3 instead of speaking.
> >
> > Regards
> >
> > Radek
>
> There was already somebody who developed a program to do
> encrypted GSM calls
> with two FR. But i don't remeber who it was.
>
> But one should find something in the archive of this mailinglist.
>
> Regards,
> Thomas
>
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