Re: [Discuss-gnuradio] Playback

[Dan CaJacob]

I often "speed up" the playback of large recordings by adjusting the throttle only.  In the throttle block, I just multiple the recorded sample rate by a factor (say 10) to get increased playback speed.  Don't change any other blocks' parameters - just the throttle.

Very Respectfully,

Dan CaJacob

On Mon, Dec 30, 2013 at 4:52 PM, Paul B. Huter <address@hidden> wrote:

Tom:

What would you recommend if my data was recorded at 50M for about 15 seconds and I would like to double to playback time with a throttle. If I set the throttle to 25M, would that do the trick, or is it more complicated than that? I'm waiting for a new shipment of RAM, and once I have that I will be able to play around with things, but I just thought I would query the group to get a good starting point.

Thanks.

On Mon, Dec 30, 2013 at 8:52 AM, Paul B. Huter <address@hidden> wrote:

Sounds good, thanks.

Paul B. Huter

On Dec 30, 2013 8:51 AM, "Tom Rondeau" <address@hidden> wrote:

On Thu, Dec 26, 2013 at 5:31 PM, Paul B. Huter <address@hidden> wrote:
> Is there a way to slow the playback of a data file through an FFT Sink? If I
> recorded at 50M and I set my FFT rate to 25M, would that result in playback
> twice as long?
>
> Thanks.


No, the sample rate of the FFT sink is just for display purposes: it
sets the range of the x-axis and nothing more.

If you want to slow down your display, assuming there is no hardware
in the loop, you can use a throttle block with a fairly low rate.

Tom

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