Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-05 Thread Adrian Musceac
Hi Jeroen, Again, your documentation is great, I wish I had the time to do such a thing for my code as well. I am somewhat biased in favor of running a Gnuradio modem though, because it is SDR ready, and the implementation/ testing of a new modem is very easy. Right now, the CPU footprint of

Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-05 Thread Jeroen Vreeken
Hi Adrian, Sounds great! On 06/04/2016 10:43 AM, Adrian Musceac wrote: > > So what is stopping us from doing that? Not very much apparently. All > the bits and pieces are there already, David and Brady did a huge > amount of work on the VHF 2400 modes, so sending a 1300 bit/s stream > of Codec2

Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-05 Thread Geordie Millar
Usb OTG with a sound card plugged in? On 5 Jun 2016 15:53, "Brady O'Brien" wrote: > If someone did want to write a proper android app, the FreeDV API is > pretty straightforward and should run just fine under the NDK, though I'm > not sure how one would work around the

Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-04 Thread Brady O'Brien
If someone did want to write a proper android app, the FreeDV API is pretty straightforward and should run just fine under the NDK, though I'm not sure how one would work around the dual audio card requirement. On Sat, Jun 4, 2016 at 5:10 PM, Adrian Musceac wrote: > Thanks

Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-04 Thread Adrian Musceac
Thanks David, but I cheated a little. It's not really Android, more like an unholy mixture of Android and GNU/Linux. The way it works is you pop in an SD card, and an Android app starts a Debian container which runs Gnuradio, FreeDV and possibly also any other Linux amateur radio software. The

Re: [Freetel-codec2] Digital voice using an Android mobile phone

2016-06-04 Thread David Rowe
Wow that's really awesome Adrian! Great job at integrating all of those modules with Android. How well does the PTT work, e.g. can you use it for real QSOs? Cheers, David On 04/06/16 18:13, Adrian Musceac wrote: > Hi all, > I was thinking the other day, that it would be nice to pair a cheap

[Freetel-codec2] Digital voice using an Android mobile phone

2016-06-04 Thread Adrian Musceac
Hi all, I was thinking the other day, that it would be nice to pair a cheap Android smartphone with a standard analog FM handheld radio (maybe a Baofeng) and upgrade your aging FM transceiver to a state of the art digital radio with Bluetooth, GPS, the ability to bridge voice through a VoIP