I have a data file that was recorded to a RAMDisk and transferred to the hard drive on my Linux machine. When I run it through a throttle, a filter, and into an FFT, the file repeats. When I was running it off the RAMDisk, it only played for the ~15 seconds of the data. I was having the problem with repeating before I rebooted and lost the RAMDisk file (I thought maybe having it stored in RAM, too, was causing a problem). Also, the buttons on the FFT plot don't work (Autoscale, Stop) Can anyone provide any insight into why the file on my hard drive is repeating? "Repeat" is set to "No" on the file source block. Second question - On the FFT (same flow) how can I make it so it STARTS viewing all the data? The FFT shows up going from 0 to 100, and the majority of the data is negative. As mentioned, it only runs for about 15 seconds, and even if the Autoscale button worked, I have such a small window to view everything. It is my understanding that I can't get an Autoscale prior to viewing the plot, but is there a way to scale it with the parameters on the flow block (maybe set it to go from 0 to -100)? Thanks!
on 2013-12-23 22:11
on 2013-12-24 00:10
Hello, If the buttons aren't working then the thing is probably locked up, try lowering the fft_rate parameter and see if that fixes things. Andrew
on 2013-12-24 00:53
Thanks, Andrew, I will give that a try. But I am curious as to why it worked fine when running it off of the RAMDisk, but I have problems running the exact same file off of the hard drive. Am I having an issue with the read-speed on the hard drive (just as I was having an issue with the write-speed, which led to me using the RAMDisk)?