[Flexradio] Annoying audio anomaly after changing to another PC
I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an older AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my transmit audio using the P4 computer I now get a very short whooshing or swishing sound immediately after every spoken word. I use the Edirol FA66 audio interface set to 194K sampling rate and I monitor RX/TX audio via headphones plugged into the front of the FA66. Here is how I have this PC set up: MS Windows XP Home Ed 2002 with SP 2 Latest Windows updates including latest MS DirectX installed CPU running at abut 48% utilization No other applications running in the background PowerSDR Setup: Audio Buffer set at 2048 and Sampling Rate 192000 DSP Buffer set to 4096 with Hanning Window Edirol FA66 Driver Settings: Buffer Size set to MIN WDM set to Smaller ASIO set to Smaller All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to nearly 0 dB. Changing any of the above operating parameters has no effect on the audio issue I've described. I suspect this PC may be a bit undersized for this application but I'd really like to continue using this PC for PowerSDR. But, I do have this annoying audio issue that I'd like to clear up if possible. I'd be grateful for any suggestions. Bob, KW4CQ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex-radio.biz/attachments/20061105/64767b77/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Annoying audio anomaly after changing to another PC
Bob, Try going to 96kHz. I agree that you are pushing that Sempron pretty hard. While the average CPU may be 48% (as this the performance monitor really does present an average I believe), you are probably pushing closer to 100% curing peaks like redrawing the screen. Try turning of the display and see if you get different results. If the issue is not CPU load, it is probably related to stray RF. Try turning the Drive down to 0 and see if it goes away. If it does, then you need to hunt down where you are getting RF into the lines. Eric Wachsmann FlexRadio Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] radio.biz] On Behalf Of Robert Cleve Sent: Sunday, November 05, 2006 9:48 AM To: Flexradio Subject: [Flexradio] Annoying audio anomaly after changing to another PC I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an older AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my transmit audio using the P4 computer I now get a very short whooshing or swishing sound immediately after every spoken word. I use the Edirol FA66 audio interface set to 194K sampling rate and I monitor RX/TX audio via headphones plugged into the front of the FA66. Here is how I have this PC set up: MS Windows XP Home Ed 2002 with SP 2 Latest Windows updates including latest MS DirectX installed CPU running at abut 48% utilization No other applications running in the background PowerSDR Setup: Audio Buffer set at 2048 and Sampling Rate 192000 DSP Buffer set to 4096 with Hanning Window Edirol FA66 Driver Settings: Buffer Size set to MIN WDM set to Smaller ASIO set to Smaller All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to nearly 0 dB. Changing any of the above operating parameters has no effect on the audio issue I've described. I suspect this PC may be a bit undersized for this application but I'd really like to continue using this PC for PowerSDR. But, I do have this annoying audio issue that I'd like to clear up if possible. I'd be grateful for any suggestions. Bob, KW4CQ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex- radio.biz/attachments/20061105/64767b77/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Annoying audio anomaly after changing to another PC
Bob, You might also move the Process Priority up a notch or even to Real-Time, but you maybe running out of CPU cycles to refresh the screen.. 73, Dudley WA5QPZ On Sun, 2006-11-05 at 13:24 -0600, FlexRadio - Eric wrote: Bob, Try going to 96kHz. I agree that you are pushing that Sempron pretty hard. While the average CPU may be 48% (as this the performance monitor really does present an average I believe), you are probably pushing closer to 100% curing peaks like redrawing the screen. Try turning of the display and see if you get different results. If the issue is not CPU load, it is probably related to stray RF. Try turning the Drive down to 0 and see if it goes away. If it does, then you need to hunt down where you are getting RF into the lines. Eric Wachsmann FlexRadio Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] radio.biz] On Behalf Of Robert Cleve Sent: Sunday, November 05, 2006 9:48 AM To: Flexradio Subject: [Flexradio] Annoying audio anomaly after changing to another PC I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an older AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my transmit audio using the P4 computer I now get a very short whooshing or swishing sound immediately after every spoken word. I use the Edirol FA66 audio interface set to 194K sampling rate and I monitor RX/TX audio via headphones plugged into the front of the FA66. Here is how I have this PC set up: MS Windows XP Home Ed 2002 with SP 2 Latest Windows updates including latest MS DirectX installed CPU running at abut 48% utilization No other applications running in the background PowerSDR Setup: Audio Buffer set at 2048 and Sampling Rate 192000 DSP Buffer set to 4096 with Hanning Window Edirol FA66 Driver Settings: Buffer Size set to MIN WDM set to Smaller ASIO set to Smaller All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to nearly 0 dB. Changing any of the above operating parameters has no effect on the audio issue I've described. I suspect this PC may be a bit undersized for this application but I'd really like to continue using this PC for PowerSDR. But, I do have this annoying audio issue that I'd like to clear up if possible. I'd be grateful for any suggestions. Bob, KW4CQ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex- radio.biz/attachments/20061105/64767b77/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
