Digital signal processor Puns

Hi, I'm a recent electrical engineering graduate, I specialized in DSP and Communication. I want to expand my knowledge and try and learn how to work with dsp in real time as I have experience only in Matlab. The thing I have in mind is working on a project, probably audio first and then image processing.

Could you recommend on a kit to start with? Thank you :)

I like DSP (the theory) and embedded systems (electronics/MCUs) and I'm trying to figure out what projects I can incorporate a DSP into. I like robotics (quadrotors, acrobatic maneuvers) is there a place for a DSP in that kind of system?

Sensor diagramm
Sensor data
Datasheet pdf

I would like to calculate the precision of the sensor. It measures up to ± 4977 Pa, with the info that only the upper 16 bits out of the 24 bits are significant.

So I did that in excel.

The info from the data sheet is confusing though. I get why an offset can be 0.5 bit off, but some rows say 0.1 bit. Which means I don't fully get it.

Either way the precision will be fine for my application, it's way below 1 Pa. I just need to show some proof of it.

I have never used a DSP in a setup before. If I'm using RCA outputs from an aftermarket head unit, am I able to assign multiple outputs to the same input using their sofware? I only have 1 set of RCAs for the front, coming from the head unit. Am I able to plug it into, say, input 1, and be able to set the equalizers and crossovers for outputs 1 and 2, one channel for tweeter and one for mids? Or am I only able to split the pre amp input and use both inputs 1 and 2 on the DSP? Please let me know if I am going about this completely wrong. Also, why does this DSP have 6 inputs but 8 outputs? Thank you for any info in advance!

https://www.crutchfield.com/p_161DM608/AudioControl-DM-608.html?tp=61658

Hi there. I am in the planning stages for converting my vintage 6 cylinder motorcycle from carbs to EFI. Two of the challenges with such a conversion are:

1. Getting a clean MAP sensor signal from 6 ITBs.
2. Getting a cam phase signal.

Today I found this product, which solves both problems for engines up to 4 cylinders:

http://efi.ttrignition.com/quadramap.html

Does anyone know of something similar that can handle 6 MAP sensors? I've contacted the seller to see if 2 could be ganged together, but I'd prefer a single solution if possible.

EDIT: I contacted those people, and they have solutions for 6 and 8 cylinder engines in the works. No hard timeline for production, but the circuit and housing design are done.

BTW - for others interested in this, but who don't need the cam phase signal (or who are comfortable making their own), there's the open-source MultiMAP project:

https://github.com/jharvey/MultiMAP

I have some experience with microcontrollers and DSP, but not both together. I'm working on a project involving real time frequency analysis and processing of audio. At the moment, it's implemented in LabView and MATLAB and deployed to a myRIO. For some of the initial prototyping, I'm probably going to use a Raspberry Pi with a USB audio input, do the processing onboard, and output through SPI. This may end up being adequate, but I still want to look into other microcontrollers and DSP's.

I've been looking at a few options, but it's hard to find where to get started. I've been able to make some sense out of the TI products, but there are too many options from Analog Devices. So far I've looked at the following, each in a different product line.

• TI MSP-EXP432P401R - ARM Cortex M4F with "DSP acceleration", mainly various multiply-accumulate instructions

• TI TMS320C5535 - Cheap DSP with FFT coprocessor, stereo input

• TI TLV320AIC3256 - More specialized? Stereo input

• TI OMAP-L132 - C6000 DSP+ARM Processor

These two product lines have a ton of options and I don't know much about them:

• Analog Devices SHARC Processors

• Analog Devices SigmaDSP Audio Processing

Out of TI's products, I'm leaning towards the TMS320C5535 or TLV320AIC3256. Analog Devices may have some good options, but nothing pops out at me. Does /r/ece have any advice?

So we have a course this semester on Digital Signal Processing. We've been studying the basics of it. Computation of DFT, FFT and design of Butterworth filters so far. As a part of our open ended project we have been given the TMS320C6713 Digital Signal Processor from Texas Instruments (http://www.ti.com/tool/tmdsdsk6713) to work with. As a part of our lab I've worked only on very simple simulation programs on code composer studio.

Since I'm very new to this field. Could you please suggest how I can develop my fundamental knowledge of working with Digital Signal Processors in the form of a project ? Is there any application/project that I could build in the process of which I would learn how all this is practically used ? Any help will be really appreciated. Thank you.

I'm new to SDR, but I'm contemplating an embedded handheld device that can work 2m-33cm bands, and it seems SDR is my best option. I've been trying to work out my processing requirements, and I'm hoping I did my math wrong, cuz I don't like my results...

Starting out, if I want to support a max frequency of 904Mhz, I understand I need somewhere in the vicinity of (928000000)*2.2 =~2042 million samples per second. Right out of the gate, I have to get from time domain to frequency domain before I can do any processing, which means an FFT.

As I understand https://electronics.stackexchange.com/questions/100399/what-is-the-efficient-way-to-perform-fft-for-large-set-of-samples , it would seem I can expect log2(2042000000) layers, with 2042000000/2 butterflies, with 4 operations each... Or ~31 layers, 1021M butterflies each, with 4 ops each... Or 126.6B operations per second... Which is a lot!

I mean, if I assume 16 bit samples, and a 64 bit processor, and thus 4 samples per core, and 4 cores per processor die, and two processor dies... Only then do I reach a reasonable-for-servers 3.956Ghz per core, for recieve only...

That's certainly not a handheld device!

Please tell me I'm orders of magnitude off in my calculations somewhere... Because if I'm not: LOL

I am leaving a startup company where I was working on base-calling algorithms to process the signals generated by DNA sequencing. I am looking for more stable long term employment. Before this I worked as a consultant for Kimberly-Clark Corporation to automate analysis of some results for an experiment they were doing. I have ended up in the signal processing field but I am familiar with all Computational Intelligence subjects including machine learning, AI, Medical Image processing, NNs and advanced genetic algorithms etc. I have worked with C, C++, Java, C# and .Net in general, many statistical programming languages like R, and have worked with concurrent/parallel programming, databases, cloud computing, compilers and exotic languages.

New languages are a joke to me, it takes me less than a week to master anything new, the same amount of time it took me to study and pass the first actuarial exam (a 400 study hour exam on probability distributions. My Bachelors was in Statistics and Probability theory, Master in Computer Science. I am basically an original data scientist (although I am not that old)

You can merrily install the Signal Desktop app on most laptops with an Intel/AMD processor regardless of OS (Linux, Windows, Mac OS). But you cannot install it on laptops with an ARM processor.

https://signal.org/en/download/#

I have an ARM Chromebook with containerised Linux (Crostini) but i cannot install the Signal Desktop app. It's such a shame because I choose to only use Signal for internet messaging and refuse to use Facebook related products. But it's disappointing that there's no straighforward way for me to send and receive Signal messages on my ARM Chromebook.

I know on iOS, you can have Signal installed on your iPhone and have the official Signal 'companion' app on your iPad as well. It's such a shame there's no companion app that a Chromebook with Google Play Store can download and use.

Will us Linux on ARM users ever be able to enjoy the beauty of Signal on our ARM laptops?

(and, thank you, but I'm not interested in convoluted workarounds or changing the virtual environment to Arch etc 😁)

As the title suggests, I need help with aftermarket amp and digital signal processor. I have installed a lot of stereos, amps and subs before. However this is driving me nuts. Since my challenger has a factory amp and I want to keep the head unit, I had to run in through a digital signal processor. I used an AudioControl DQ-61. And it sound like shit. After following all of the limited directions I could find I got it to work somewhat. I had to sum the signals and it started playing more than just a low bass signal to the speakers. Still it sounds lifeless and tinny. The sub sounds OK, not crisp though, just a muddy sort of bass sound. I thought maybe the digital signal processor (hence forth to be known as "DSP") was the culprit. Everything is hooked up right so I was at a loss. I got a more simple line output convert, an AudioControl LC2i, it has some of the best reviews for this type of product and I read s few other posts on challenger forums where they were using one with out issue. It sounds like crap as well, just bass coming out of the speakers. Pretty much the same as the DQ-61 did before I set it to sum the signals. This digital signal shit is really starting to piss me off. If I didnt have GPS on my stock head unit, I would have just got an after market stereo and been done with it.
Does anyone have any experience with setting up aftermarket amps and or DSP's in their challenger?

I am working on a project for my final year of EE undergrad, and I need something for digital signal processing. Basically, I need something I can program to invert and delay a signal. This should be very simple but I don't have any experience with actual processors, only MATLAB. Are there any suggestions for a chip that is easy to use and cheap?

I am trying to get into guitar pedal design, particularly multi effects digital pedals. I'm currently doing a survey of various solutions to the low latency, low power real time signal processing problem in these pedals. Is it a DSP and a FLASH bank for the effects? Do they use a more sophisticated processor? Is it an FPGA?

I've been looking for the detailed technical specs of any such pedals but couldn't find any. Any leads/examples would be appreciated.

I have some experience with microcontrollers and DSP, but not both together. I'm working on a project involving real time frequency analysis and processing of audio. At the moment, it's implemented in LabView and MATLAB and deployed to a myRIO. For some of the initial prototyping, I'm probably going to use a Raspberry Pi with a USB audio input, do the processing onboard, and output through SPI. This may end up being adequate, but I still want to look into other microcontrollers and DSP's.

I've been looking at a few options, but it's hard to find where to get started. I've been able to make some sense out of the TI products, but there are too many options from Analog Devices. So far I've looked at the following, each in a different product line.

• TI MSP-EXP432P401R - ARM Cortex M4F with "DSP acceleration", mainly various multiply-accumulate instructions

• TI TMS320C5535 - Cheap DSP with FFT coprocessor, stereo input

• TI TLV320AIC3256 - More specialized? Stereo input

• TI OMAP-L132 - C6000 DSP+ARM Processor

These two product lines have a ton of options and I don't know much about them:

• Analog Devices SHARC Processors

• Analog Devices SigmaDSP Audio Processing

Out of TI's products, I'm leaning towards the TMS320C5535 or TLV320AIC3256. Analog Devices may have some good options, but nothing pops out at me. Does /r/dsp have any advice?