Re: [Flexradio] Driver Buffer Size Setting

2009-03-01 Thread Mike Walsh
Here's the way I've looked at buffer setup issues operating CW with my Flex 5000 - Eric, please correct me if I'm offbase on any of the following. There are 3 PowerSDR buffer settings of interest for CW: the single audio buffer size found on the Setup/Audio tab, and separate DSP CW RX and TX

Re: [Flexradio] Driver Buffer Size Setting

2009-03-01 Thread Joe - AB1DO
, March 01, 2009 16:17 Subject: Re: [Flexradio] Driver Buffer Size Setting Note -- in my previous post I wrote On Sun, Mar 1, 2009 at 1:22 PM, Mike Walsh from...@gmail.com wrote: snip Third, all DSP buffer sizes should be even multiples of the audio buffer size for best efficiency of audio/DSP

Re: [Flexradio] Driver Buffer Size Setting

2009-02-20 Thread Eric Wachsmann
FLEX-5000 Users (and future FLEX-3000 users): We have received some questions recently about the driver buffer size setting and how it relates to the buffer size in the PowerSDR Setup Form - Audio Tab. We thought we would clarify it here on the reflector so it might help others that had the same

Re: [Flexradio] Driver Buffer Size Setting

2009-02-20 Thread Brian Lloyd
On Fri, Feb 20, 2009 at 9:46 AM, Eric Wachsmann e...@flex-radio.com wrote: So Eric, it seems to me that the right answer is: always set the buffer size in PowerSDR to the same value as the buffer size set into the FireWire driver. Is there any situation where that would not be the case? (Hmm, I

Re: [Flexradio] Driver Buffer Size Setting

2009-02-20 Thread Eric Wachsmann
The maximum audio buffer size in PowerSDR is 2048, so I wouldn't recommend going higher than that in the driver. Note that the DSP buffers can go as large as 4096. Note that the DSP buffer size (not the audio buffer size) affects the filter shape. You are correct that multiples of the driver

Re: [Flexradio] Driver Buffer Size Setting

2009-02-20 Thread Brian Lloyd
On Fri, Feb 20, 2009 at 10:37 AM, Eric Wachsmann e...@flex-radio.com wrote: The maximum audio buffer size in PowerSDR is 2048, so I wouldn't recommend going higher than that in the driver. Note that the DSP buffers can go as large as 4096. Note that the DSP buffer size (not the audio buffer

Re: [Flexradio] Driver Buffer Size Setting

2009-02-20 Thread Eric Wachsmann
On Fri, Feb 20, 2009 at 1:36 PM, Brian Lloyd brian-wb6...@lloyd.com wrote: You are correct that multiples of the driver could be used in the audio setting and it will work. But you'd have to ask yourself...why? ;) No, I am not asking myself why because I don't know. (I have guesses