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Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP
From: |
Marcus Müller |
Subject: |
Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP |
Date: |
Sun, 11 Aug 2013 17:48:44 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 |
Hi Vanush,
I was not aware of the gr-fcdproplus project; however, in practice, the only
difference is really the 192k sampling rate of that audio device (I can't
really see why the dl1ksv did not patch that functionality into gr-fcd, but
that's completely his choice. It's easier, anyway, to isolate all that control
device handling into a hardware-specific source).
Let's assume you have your file source that reads the 16 (signed) integers coming from
the sound card; that file source should have "short" set as its output type
(that's 16 bit :) ), as it simply reads raw bytes.
You convert those using "short to float";
I and Q samples are interleaved. So you take "Deinterleave", get two parallel
float-streams.
These, you combine using float to complex.
Quite straightforward :)
Greetings,
Marcus
On 08/11/2013 05:14 PM, Vanush Vaswani wrote:
Hi,
yeah, makes sense to use OS functionality thats available.
One question - how does one pack the samples back into complex within gnuradio
(or grc)?
FYI, I am referring to OOT block gr-fcdproplus, not gr-fcd. The funcube dongle
pro+ has an improved quadrature sampling rate of 192 KHz.
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, (continued)
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus Müller, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Vanush Vaswani, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus Müller, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Vanush Vaswani, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus Müller, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus D. Leech, 2013/08/09
- Message not available
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus D. Leech, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Vanush Vaswani, 2013/08/09
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus Müller, 2013/08/10
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Vanush Vaswani, 2013/08/11
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP,
Marcus Müller <=
- Re: [Discuss-gnuradio] Streaming Funcube Dongle Pro+ over UDP, Marcus Leech, 2013/08/09