Hello Pedro, I'm glad you like BasicDSP. The current experimental windows version of BasicDSP (available in the files section in 'BasicDSP experimental ...
45
Pedro
p_e_colla
Nov 19, 2009 11:35 am
Hi Niels, Thanks for your kind reply. I'd got the most recent version but since atan(x) isn't listed in the help I didn't even try it! (Sorry...). Is there any...
46
Niels A. Moseley
trc_wm
Nov 19, 2009 12:50 pm
To my knowledge only the atan(x) function was added along with libsndfile support. Feel free to pester me about BasicDSP. It's better than trying to sell me...
47
Pedro
p_e_colla
Nov 21, 2009 2:50 pm
Hello, is there a known way on how to implement decimation and interpolation in BasicDSP? Thanks in advance, Pedro LU7HZ...
48
Niels A. Moseley
trc_wm
Nov 22, 2009 12:59 pm
Hello Pedro, Real interpolation & decimation are not easy to implement mainly because the way the soundcard works. The input and output sample rates must be ...
49
Pedro
p_e_colla
Nov 22, 2009 3:14 pm
Hi Niels, thank you for the answer. This problem is discussed in detail by Takafumi-san (JI3GAB) in his much cited work to implement a 12 KHz SSB transceiver ...
50
Pedro
p_e_colla
Nov 22, 2009 3:34 pm
Following the design proposed by Takafumi-san (JI3GAB) <http://homepage3.nifty.com/ji3gab/english/dsp-prog.html> in his implementation of a 12 KHz SSB...
51
Roumen Ivanov
rumeniv
Dec 11, 2009 2:29 pm
I am trying BasicDSP with the suggested SSB_IQ.wav file downloaded from Flex-Radio web site, but I am getting very low (quiet) output on my speakers. I tried...
52
Niels A. Moseley
trc_wm
Dec 11, 2009 5:13 pm
... Hello Roumen, You don't need a new soundcard; many recorded I/Q signals are very quiet and require amplification in the BasicDSP script. A better soundcard...
53
Ed Paradis
thelagged
Apr 12, 2010 4:50 pm
Hi, I compiled BasicDSP on a laptop running a version of Ubuntu and I had two issues: First, the device that basicdsp tries to open is /dev/dsp0. This didn't...
54
Pedro
p_e_colla
Jun 3, 2010 7:17 pm
Hello everyone, Is there a way to introduce a controlled delay in one of the channels? Obviously the delay shall affect the phase (but not the amplitude) of...
55
marienvanwesten
Oct 13, 2010 8:17 am
Dear all, I use BasicDSP for my labs on DSP. On some of my students laptops the program runs fine, but on others it suddenly crashes. It is not clear why it...
56
Niels Moseley
trc_wm
Oct 13, 2010 11:56 am
Hello Marien, BasicDSP was never tested on windows 7, and I nor Pieter-Tjerk have it installed so we can't debug the problem. Do these crashes appear random or...
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Niels Moseley
trc_wm
Oct 14, 2010 8:43 am
Marien, Have you tried the experimental version of BasicDSP, found in the files section of this group? It should be more stable. Regards, Niels....
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Marien van Westen
marienvanwesten
Oct 15, 2010 6:10 am
Dear Niels, I downloaded that version two days ago. I will ask my students to experiment with that version to see if there are any differences. For me it is...
59
marienvanwesten
Oct 15, 2010 6:17 am
Dear Niels, It appears to be random. In the classroom we have also some institute computers, all with the same hardware. On some basicdsp runs fine, on others...
60
kumuzu1
Feb 24, 2011 12:00 am
Has anyone experienced the 'Invalid Audio Device' error message under Windows 7? This message is displayed next to the 'Stop' button whenever I start BasicDsp...
61
ecdowney2002
Apr 15, 2011 4:00 pm
Hello. New member here. Ham operator looking for ways to learn about the maths behind software defined radio. Thanks for a great tool. I have a question on how...
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Murray Curtis
vk3acf
Apr 15, 2011 11:14 pm
Hi Elwood Basicdsp uses the Linux original sound system OSS which has been dropped from Ubuntu 10.10. You'll find there are no dsp entries in /dev eg ...
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Elwood C. Downey
ecdowney2002
Apr 18, 2011 4:05 pm
Hi Murry, Thanks for the tips, unfortunately no joy. I tried using padsp, which was already installed, even tried with sudo in case that would help, but the...
64
Murray Curtis
vk3acf
Apr 19, 2011 2:42 am
Oh how embarrassing! I was on the wrong computer and (obviously) wasn't thinking. I just tried BasicDSP1.01 on Ubuntu 11.04 beta which definitely has no...
65
Elwood C. Downey
ecdowney2002
Apr 19, 2011 8:33 pm
That works! So to summarize: 1. edit linux.cpp changing occurrences of dsp0 to dsp 2. run as "padsp basicdsp" Reading about padsp I found all it really does is...
66
ecdowney2002
May 9, 2011 9:04 pm
All, At the risk of mentioning the "competition" I thought members here might be interested in knowing about another free DSP learning tool called DSPExplorer....
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alejos.roman
Jun 1, 2011 8:44 am
Hi all, I am working in an digital signal processing application in Visual Basic .NET. The basicDSP.dll library is a really good help to calculate the FFT of a...
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Niels Moseley
trc_wm
Jun 1, 2011 9:18 pm
... Hi Alejos, The complex FFT divides the frequency axis (from 0 Hz to the sample frequency) into equal-sized parts. If you do a 1024-point transform, and the...
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alejos.roman
Jun 2, 2011 7:38 am
Hi Niels, Thank you for the information and sorry for my misunderstanding. I thought your windows application was programed in .NET. Anyway you gave me a clue...
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Behruz Alizade
alizade_behruz
Aug 14, 2012 6:46 pm
... From: Behruz Alizade <alizade_behruz@...> To: "basicdsp@..." <basicdsp@...> Sent: Tuesday, August 14, 2012 11:11 PM Subject: butterworth...
71
m.fm22
Oct 16, 2012 9:10 pm
Good evening, Does someone already used a TI DSP type c55xx ? Does someone already used an eZDSP ? Many thanks Regards FMM...
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Niels
trc_wm
Nov 4, 2012 11:01 pm
... Hi FFM, I have an eZDSP board but I haven't used it in a while. I never got the CODEC to work properly. Regards, Niels....
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alizade_behruz
Nov 22, 2012 8:03 am
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