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Fully Featured Audio DSP Firmware for the Raspberry Pi Pico

https://github.com/WeebLabs/DSPi
58•BoingBoomTschak•1d ago

Comments

BoingBoomTschak•1d ago
And here's the release thread for those of you wanting a bit more detail or to talk with the creator: https://www.audiosciencereview.com/forum/index.php?threads/i...
a96•1h ago
Looks like output only and only one stereo pair from USB is processed to outputs, but a really cool project.

Also, for those watching for it: https://www.audiosciencereview.com/forum/index.php?threads/i...

> I can't take all of the credit. My little robot intern (Opus 4.5) has been very helpful with the busy work, leaving me free to handle the trickier planning and implementation. ;)

amelius•53m ago
Is there a guaranteed latency?
alhirzel•42m ago
85ms

https://github.com/WeebLabs/DSPi/commit/ba8e481570e6a5ce3d35...

lysace•43m ago
Nice.

I wonder if 264kB RAM is also (barely) enough for a high quality stereo reverb/echo effect? Should fit about 3 seconds of uncompressed 16-bit 44.1/48 kHz audio.

Also: Raspberry Pi Ltd - please add a little more RAM in future iterations to unlock more use cases.

acidburnNSA•35m ago
Tangentially related, I recently had some hand-me-down high-end full tower speakers lose their integrated subwooer amps. I bypassed them and wired in an external amp but people said the integrated DSP would be missing. That's when I learned about CamillaDSP [1] and CamillaFIR [2]. I got a calibrated UMIK-1 microphone and did a frequency sweep in the room. Then I applied the camilla-computed FIR filter to my snapcast-sourced music stream on the Raspberry Pi 3 B I have networked into the living room. Now I have room-corrected and loundspeaker corrected fancy DSP and the speakers sound better than ever. Pretty fun, and very cheap. I did the same process up in my office with some desk speakers and they sound great too (that time using EasyEffects to apply the filter in realtime rather than CamillaDSP).

[1] https://github.com/HEnquist/camilladsp

[2] https://github.com/VilhoValittu/CamillaFIR

MrBuddyCasino•9m ago
Did you ever use Dirac Live and can compare the results? Hardware that supports Dirac is unfortunately very expensive.

Pgbackrest is no longer being maintained

https://github.com/pgbackrest/pgbackrest
111•c0l0•1h ago•42 comments

Fully Featured Audio DSP Firmware for the Raspberry Pi Pico

https://github.com/WeebLabs/DSPi
58•BoingBoomTschak•1d ago•7 comments

Flipdiscs

https://flipdisc.io
349•skogstokig•3d ago•60 comments

I bought Friendster for $30k – Here's what I'm doing with it

https://ca98am79.medium.com/i-bought-friendster-for-30k-heres-what-i-m-doing-with-it-d5e8ddb3991d
884•ca98am79•15h ago•452 comments

Moleskine's AI Lord of the Rings collection can only mock

https://cjleo.com/blog/moleskine-ai-lord-of-the-rings-collection-can-only-mock/
32•lentil_soup•3h ago•15 comments

TurboQuant: A first-principles walkthrough

https://arkaung.github.io/interactive-turboquant/
199•kweezar•10h ago•42 comments

AI should elevate your thinking, not replace it

https://www.koshyjohn.com/blog/ai-should-elevate-your-thinking-not-replace-it/
572•koshyjohn•16h ago•422 comments

Self-updating screenshots

https://interblah.net/self-updating-screenshots
347•bjhess•1d ago•53 comments

The Prompt API

https://developer.chrome.com/docs/ai/prompt-api
165•gslin•10h ago•88 comments

Branimir Lambov from IBM on Cassandra

https://theconsensus.dev/p/2026/04/26/branimir-lambov-from-ibm-on-cassandra.html
11•eatonphil•22h ago•0 comments

It's OK to abandon your side-project (2024)

https://robbowen.digital/wrote-about/abandoned-side-projects/
109•hisamafahri•4h ago•52 comments

Three constraints before I build anything

https://jordanlord.co.uk/blog/3-constraints/
244•nervous_north•1d ago•42 comments

Rust Memory Management: Ownership vs. Reference Counting

https://slicker.me/rust/ownership_and_borrowing_vs_reference_counting.html
36•vinhnx•2d ago•12 comments

Fast16: High-precision software sabotage 5 years before Stuxnet

https://www.sentinelone.com/labs/fast16-mystery-shadowbrokers-reference-reveals-high-precision-so...
279•dd23•16h ago•56 comments

Electrostatics and High Voltage Links

http://amasci.com/static/electrostatic1.html
14•ludicrousdispla•3d ago•1 comments

A Guide to CubeSat Mission and Bus Design

https://pressbooks-dev.oer.hawaii.edu/epet302/
42•o4c•1d ago•3 comments

SWE-bench Verified no longer measures frontier coding capabilities

https://openai.com/index/why-we-no-longer-evaluate-swe-bench-verified/
322•kmdupree•22h ago•170 comments

Box to save memory in Rust

https://dystroy.org/blog/box-to-save-memory/
147•emschwartz•3d ago•41 comments

France's Mistral Built a $14B AI Empire by Not Being American

https://www.forbes.com/sites/iainmartin/2026/04/16/how-frances-mistral-built-a-14-billion-ai-empi...
35•rzk•2h ago•8 comments

Bob Odenkirk would like to remind you that life is a meaningless farce

https://www.nytimes.com/2026/04/25/magazine/bob-odenkirk-interview.html
82•wslh•23h ago•74 comments

Sawe becomes first athlete to run a sub-two-hour marathon in a competitive race

https://www.bbc.com/sport/athletics/articles/crm1m7e0zwzo
429•berkeleyjunk•15h ago•277 comments

When the cheap one is the cool one

https://arun.is/blog/cheap-cool/
143•ddrmaxgt37•1d ago•80 comments

FreeBSD Device Drivers Book

https://github.com/ebrandi/FDD-book
101•myth_drannon•13h ago•20 comments

Mystery Cpuid Bit

http://www.os2museum.com/wp/mystery-cpuid-bit/
22•userbinator•2d ago•2 comments

EvanFlow – A TDD driven feedback loop for Claude Code

https://github.com/evanklem/evanflow
81•evanklem2004•10h ago•40 comments

Quirks of Human Anatomy

https://www.sdbonline.org/sites/fly/lewheldquirk/figlegq6.htm
142•gurjeet•2d ago•82 comments

Quarkdown – Markdown with Superpowers

https://quarkdown.com/
8•amai•3h ago•1 comments

Magic: The Gathering took me from N2 to Japanese fluency

https://www.tokyodev.com/articles/how-magic-the-gathering-took-me-from-n2-to-japanese-fluency
148•pwim•3d ago•66 comments

An AI agent deleted our production database. The agent's confession is below

https://twitter.com/lifeof_jer/status/2048103471019434248
743•jeremyccrane•19h ago•880 comments

The Mushroom That Makes People Have the Exact Same Hallucination

https://www.vice.com/en/article/meet-the-mushroom-that-make-people-have-the-exact-same-hallucinat...
68•thunderbong•4h ago•50 comments