Re: [Discuss-gnuradio] Memory and Playback

[Dan CaJacob]

Hi Paul,

Can you reduce the bandwidth of the recording you are taking?  50M is a lot to record unless you carefully design and understand the limits of your recording media, bus, etc.  Even just streaming it and processing the samples in realtime with no recording may be difficult, depending on your hardware.

I would suggest that you reduce your bandwidth to 8 MHz or less and start there.  Then, once you've solved any other problems, you can focus on getting the full bandwidth if you really need it.

I routinely record long, 1 MHz spectrum files to disk without issue on commercial OTS hardware.

I hope this helps.

Very Respectfully,

Dan CaJacob

On Fri, Jan 3, 2014 at 4:09 PM, Paul B. Huter <address@hidden> wrote:

If I were to use a throttle to reduce my data rate from 50M (record rate) to 25M, would the fact that I only have 4GB of RAM and a 5GB data file be alright? I seem to be having playback problems with the large data file and current amount of memory. The file played back fine when stored on a 5GB RAMDisk (8GB total RAM), but I have had to go back to 4GB of memory. I would like to work with the data while I wait for a memory upgrade.

Paul B. Huter

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