Benoit BOUCHEZ (@BEBSynthesizers)
Subject ? Title ?It seems that this message is a reply to something, so it has nothing be here as a new topic
The only problem is that your story misses one thing (and probably what you are missing too) : the hotel owner is a thief !The man visiting the room NEVER gave him...
Hi MaxMax,it is not just adding noise. Just adding noise to something makes this thing noisier, not better.You have add noise, oversample and perform averaging on...
I don't really understand what you call a "commercially available DSP". SigmaDSP are commercially available since 15 years and SigmaStudio was created specifically...
Hi Jon,yes it is feasible and reasonable. There are even some communication protocols who uses "middle" CRC. It is typically the case of MVB (Multifunction Vehicle...
An IIR filter output can be larger than the input, like with an analog filter by the way. Everything depends on the gain you apply for fo (also called resonance...
First of all, when you speak of 1st order, what are you talking about ? Only the motor ? The system driven by the motor ? Everything together ?Second question :...
Hi Cedron,I don't agree with you if the original poster wants to learn how to DSP as chips (I mean Digital Signal Processors, not Digital Signal Processing)Programming...
Hi,the question is mainly : what kind of effect do you want to implement? There are hundreds if not thousands of analog effects, with totally different algorithms...
What do you mean by "I am able to flash the .ldr file into the board" ?You say just after that when you flash the pre-compiled .ldr, board is able to run it but...
Hi Miguelwhat I read from you confirms this situation : it is IMPOSSIBLE for any programmer to add their module themselves in SigmaStudio or even code anything directly...
Hello Miguel,what I read here is a bit disturbing. I use SigmaDSPs since years, and the main issue was that ADI *never* wanted to publish any detail about the assembly...
What is your application? Audio? Video? Anything else? For which target? Without these information, it will be hard to recommend you anything.
What type of DSP are you looking for? Fixed point or floating point? How much computing power do you need ? And about ADC and DAC : what type do you need ? Sigma...
Hi Audiomath,I use Open Office Draw for "technical" drawing (when I have a lot of text boxes and symbols to place), and Open Office Calc when I need graphs made...
Signed / unsigned ?Big endian / little endian ?Do you mean Q1.15 ? Is it the format expected by the codec on output ?It's very hard to tell from the information...
Hi Jesper,that's rather weird. I should make a quick test here to see better what explains that. I do not work anymore on the ADSP218x (I use only SHARC and Sigma...
Hello,you declare tph as a .CONST, it should be a .VAR located in DM.Right now, your code is assembled in a way you are probably not expecting.For example, if you...
Hi,passing from floating point to fixed is no more, no less than scaling numbers.But in all cases, the VERY FIRST question when you come to fixed point is : what...
Hi Nelsona,the noises you are describing as random are most of the time highly predictive, because they have a fixed frequency. They appear to our ears as noises,...
I have never made any serious research in that field, so I just give my opinion after a transverse reading of your proposal.I would not use an audio signal coming...
Hi Rick,don't worry, you did not loose your mind : that's a correct approximation of the electric field met in integrated circuits.And by the way, those electrical...
Hi Dandikain,simply said : there is currently *no* C compiler able to optimize DSP code as efficiently as native assembly programming. And simply forget C++, it...
Hi,are you sure that the Flash has been programmed successfully?0xFF can come from the Flash itself (this is the value you get when the Flash is formatted), but...
RS485 is half duplex in your case (you have connected /RE and DE). So you either transmit or receive, but you can't try to echo yourself to check if it works.The...
Are you sure your Flash memory contains something?A Flash which has been erased contains 0xFF in all bytes, so you are maybe reading this part of the Flash.Now,...
I don't understand your way of working. First, can you explain what kind of system you are designing *precisely*? What are the preliminary requisites?Simply said,...
Hi Michael,something is not clear in your request. The order of a filter is directly to its slope (and vice versa). A second order filter is -12dB/octave, no more,...
You have to consider two things : the data width and the format. For example, for 32 bits width, you can have Q1.31, Q2.30, Q3.29, etc...The more fractional bits...
Hi Geoff,the chips I am using are the SigmaDSP. The problem is not that I do not know how to program in assembly (I do that since a very long time on SHARC and 21XX)The...
Hi Crandles,what do you call the Sigma200? I only know the ADAU14XX and ADAU17XX or the AD19XXX series from AD, I don't think there are other models.The method you...
Hi Dr Mike,thank you for your proposal, but the SigmaDSP are completely different processors. They are fixed point (Q5.23), and they even differ from the 21XX.And...
There are multiple reasons : - there is no SHARC with integrated ADC/DAC- there is no SHARC in a similar price range- ADSP-21XX are only 16 bits, while the Sigma...
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