Best products from r/DSP

We found 35 comments on r/DSP discussing the most recommended products. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 39 products and ranked them based on the amount of positive reactions they received. Here are the top 20.

Top comments mentioning products on r/DSP:

u/albatrossy · 2 pointsr/DSP

It kind of sounds like you'd be good just getting a textbook. I think any book will be fine since you mainly just want questions (and presumably answers), but try to find one that implements code in a language that you're comfortable with, or that you want to learn.

There are a lot of different "final year" DSP courses, but it sounds like you want something covering the fundamentals rather than anything too advanced. I started off with The Scientist & Engineer's Guide to Digital Signal Processing and then used Signals and Systems for my first undergraduate course, but we used it largely because he co-authored it. I would recommend scouring the web for some free books though. There are books like ThinkDSP popping up that seem pretty neat.

Edit: Oppenheim is always mentioned also.

u/mostly_complaints · 2 pointsr/DSP

As a software developer the hardest part will probably be sharpening your mathematics skills. At my undergrad the CS kids only took up to Calculus II, which is really not enough math.

I started on DSP as a sophomore, teaching myself from this book. Even though I was able to implement a few filters successfully and understand the basics, I don't think it really clicked until I took a linear systems course.

All that being said, you can totally do it. But it won't be easy without the technical background - sure you use the tools we make, but honestly we hide most of the technical parts from the user anyway (the user doesn't know about or care about Butterworth vs Chebeshev filters). Put in the work to learn the mathematics. I recommend Oppenheim and Willsky if you don't have the linear systems background. Besides that, you really just need to show the company that you're a music lover, and it looks like for you that should be easy enough. PM me if you want more info.

u/VK2DDS · 9 pointsr/DSP

+1 for Cortex-M (with FPUs). I'm building a guitar pedal with an STM32F407 and it handles 12x oversampled distortion and a bunch of biquads at 48kHz (mono). It is paired with a CS4272 audio codec with DMA handling the I2S data.

It won't handle any reasonable FIR filter and the RAM limits it to ~500ms delay. There is a discovery board with external RAM but I haven't tried using it.

The F7 series are clocked a bit faster and some come with a double precision FPU instead of single but they have the same instruction set as the F4s. The Cortex-M7 has a longer pipeline (6 Vs 3 stages, probably to support the higher clock rate) so branching is probably less of a penalty on the M4.

This book is an excellent guide to the low level guts of the Cortex-M3 & M4 chips and contains a chapter dedicated to DSP on the M4. Long story short is contains a bunch of DSP instructions such as saturating integer arithmetic, integer SIMD, floating point fused multiply-accumulate etc which makes it semi-competitive against "true" DSP cores. The book compares the M4 and Sharc DSP to show that there's a big jump between them but the M4 wins hands down for ease of learning & development (strong community, free (GNU) tools etc).

Edit: If you want hardware this audio codec can be paired with this STM32F7 kit or this motherboard paird with this STM32F4Discovery board can take it as well.

u/stemax99 · 0 pointsr/DSP

I know of some good text books that are pretty easy to read. The Oppenheim and Schafer are considered by a lot of my former profs to be the bible of DSP intro:

http://www.amazon.com/gp/product/0131988425/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=0132146355&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=17WDV1JR8EA7P3D8W78A

It's pretty comprehensive, so if you're looking for something simpler, this is a pretty short and intuitive intro text (which was actually my first exposure to DSP!):

http://www.amazon.com/Digital-Signal-Processing-Primer-Applications/dp/0805316841

u/MrTheDevious · 1 pointr/DSP

The other guys covered your specific filter question, so here's some general info on learning/implementing DSP via code. I don't know whether you're a programmer already or not, so if you're not, DSP is not a great way to learn C programming from the beginning. Basic DSP like your low-pass filter is not very demanding of more advanced programming skills, but it IS (relatively) hard to debug. I don't even want to imagine how awful debugging DSP output would be for a new programmer who's not yet sure his basic code even works properly. Much easier to learn C by writing some scrubby text output programs rather than staring at a huge pile of output floats.

If you're already comfy with C, you're just going to have to dig into some textbooks and work your way through them. Don't let them scare you. The math looks ugly, but it REALLY isn't! I highly recommend combining at least two sources for each topic.

http://www.dspguide.com/ is free and great for understanding what you're doing. Very little math, very heavy on explanations of how DSP works. Read the section on filters or whatever from this book first.

http://www.amazon.com/Audio-Programming-Book-Richard-Boulanger/dp/0262014467 is the math side of the same DSP topics + lots of actual C code implementations of each

If you make it through the pair all the way, you've pretty much got an entire foundation

u/D3Rien · 1 pointr/DSP

As far as I know, PolyBLEP is a really good way to handle discontinuities without using too much processing time, so I would stick with that.

An old professor of mine wrote this book on developing DSP plugins that has algorithms and code for pretty much anything you can think of, and I highly recommend it. It's written to go along with his software, but you can adapt the algorithms pretty easily.

http://www.amazon.com/Designing-Audio-Effect-Plug-Ins-Processing/dp/0240825152

u/TxReV · 2 pointsr/DSP

This is the book we're 'using' in class. Really he just printed out a couple chapters for us to read. It's a pretty old school book (like '79), but it's all still relevant and it is a pretty well written text. Here's another but my personal recommendation would be the former.

u/Holy_City · 2 pointsr/DSP

Fair warning: synths can be beasts. The DSP part isn't what's going to give you the most trouble, hopefully. This book covers synth architectures and coding them in C++. I strongly recommend going through his first book on audio effect plugin design. The author is a former engineer at Korg.

I strongly recommend you start with a plugin before porting it to a hardware platform.

u/lfnoise · 1 pointr/DSP

read these pages from the beginning. this is the best introduction I've read. https://ccrma.stanford.edu/~jos/mdft/mdft.html

or buy the book which is better formatted https://www.amazon.com/dp/097456074X/ref=cm_sw_r_cp_api_E0JNzbCFC34Q1

u/kwaddle · 1 pointr/DSP

I think The Scientist and Engineer's Guide to Digital Signal Processing and Understanding Digital Signal Processing and generally considered the most accessible introductions. I've gotten more mileage out of Understanding DSP; I feel like it goes into a little more detail and really works to walk you through concepts, step by step.

http://www.dspguide.com/pdfbook.htm

https://www.amazon.com/Understanding-Digital-Signal-Processing-3rd/dp/0137027419


Aside from searching out good learning resources, IMO nothing is more helpful for learning than setting up your environment with Matlab, Jupyter notebooks, or whatever you're going to use, and getting comfortable with the tools you'll be using to explore these topics.

u/Hashbrownington · 1 pointr/DSP

Will Pirkle’s new edition of Designing Audio Effect Plugins in C++ is a great introduction to both DSP and plugin programming. I can’t recommend it enough!

u/lifeisafractal · 10 pointsr/DSP

"fundimentals of radar signal processing". This is an excellent book to start from; couldn't recommend it enough. Covers all the material well with a quick refresher of signal processing up front. It also reads very well.

http://www.amazon.com/Fundamentals-Processing-McGraw-Hill-Professional-Engineering/dp/0071798323

u/jojek · 2 pointsr/DSP

If you are a complete rookie, then I suggest you to read DSP and the Microcontroller. Very easy to read, little of math and a lot of humour (sic!).

u/MasterFubar · 3 pointsr/DSP

I started with this book back in the 1990s. It's old, but the principles are still the same and it's a very good book. It gives a correct technical explanation without going into too much detail and presents the full source code for everything.

In a way, I could say every single program I have written on DSP to this day has some roots in that book.



u/krypton86 · 6 pointsr/DSP

Check out chapter 7 of Discrete-Time Signal Processing by Oppenheim and Schafer. The whole book is great.

u/lerpanerp · 3 pointsr/DSP

I found Rick Lyon's book a much easier read.

u/jamesonchampagne · 3 pointsr/DSP

Understanding Digital Signal Processing by Richard Lyons is the best intro in my opinion:

http://www.amazon.com/gp/aw/d/0137027419/ref=mp_s_a_2?pi=54x75&qid=1344996249&sr=8-2

Teaches concepts without getting bogged down in the math details. Once you understand the concepts, get Oppenheim and Schafer to learn the dirty details.

u/Hello_Dongan · 2 pointsr/DSP

I personally like The Scientist & Engineer's Guide to Digital Signal Processing . The author explains a lot of concepts very clearly in laymen terms. I think the only flaw is that it doesn't cover a ton of material, only the basics.

Other than that, I think Mitra is a good book. One thing to look out for is its errata list. It's somewhat frustrating to have to double check for errors in the book when working homework problems.

u/Ayakalam · 1 pointr/DSP

Hands down, no question, I would recommend Richard Lyons' book FIRST.

u/washerdreier · 2 pointsr/DSP

Understanding DSP by Lyons, hands down. Get it and never look back. AWESOME book. http://www.amazon.com/Understanding-Digital-Signal-Processing-Edition/dp/0137027419