There seems to me that there is a common theme floating around here concerning the buffer settings for optimal use. Since there also seems to be answers that are all over the spectrum (which is understandable due to the variables involved), maybe a more scientific approach is required
Maybe what we need to do is collect some data from the users on the reflector on the processor used vs. buffer settings categorized by sound card. Plot the data with the processor/speed data on the X axis and the buffer settings data on the Y axis. Hopefully there will be some sort of correlation and the graph will have some sort of linearity. If it works, a nice little graphical representation could be useful for new users setting initial buffer setting values and experienced users to "tweak" their systems. I'd be willing to collect the data if enough people are interested. Just send it to me off-list I need the following data: 1.) Processor family/type and speed 2.) Type of sound card used 3.) DMA buffer size (Delta 44) 4.) Sound Card buffer size 5.) DSP buffer size 6.) VAC buffer size (if applicable) -Tim --- Tim Ellison ( [EMAIL PROTECTED] ) Integrated Technical Services ( http://www.itsco.com ) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lyman H. Wolfla II Sent: Wednesday, December 14, 2005 7:52 AM To: 'richard allen'; 'ab7r'; Flexradio@flex-radio.biz Subject: Re: [Flexradio] SSB audio question It has been my experience with a slower computer that the buffer size will effect the transmit echo. Try lowering it and see what reports you get, I needed to use the lowest setting. 73 Hank - K9LZJ Hank Wolfla Lyman H. Wolfla II, Inc. 1308 S. Peace St. Greenfield, IN 46140 [EMAIL PROTECTED] 317-861-0186 Cell: 317-448-3457 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of richard allen Sent: Wednesday, December 14, 2005 4:46 AM To: 'ab7r'; Flexradio@flex-radio.biz Subject: Re: [Flexradio] SSB audio question It was really a combination of the echo and recognising your call from this venue. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ab7r Sent: Sunday, December 11, 2005 2:55 PM To: Flexradio@flex-radio.biz Subject: [Flexradio] SSB audio question Not sure if this has been addressed, but probably has. Was spending some time in the 10M contest and worke W5SXD (Hi Rich). He knew right off the bat I was running an SDR1K cuz of an echo in the audio. I have also had other remark about a slight echo. Any idea what causes this and if it can be eliminated? Other than that, SDR1K played well using N3FPJ software and 1KW amp. Originally was getting lock up problems, but moved my USB port around and added some ferrite beads and eliminated the problem. 73 Greg AB7R _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
