Testing #Alphalabs #DeFeedback for #EventTech. This is an #AI #microphone #feedback remover.

And as usual with AI, people say it does wonders. First impression: Also as usual with AI, it can do its thing, but no wonders.

This is not to be confused with generative AI running in data centers. This is more like traditional #MachineLearning. It runs entirely local, and my #Waves system based on a #MacMiniM1 can run 1 instance of it at 64 samples buffer size with a #Rme #Digiface #Dante. Which is 2 channels of de-feedback. The #plugin itself runs at zero latency.

This is all about gain before feedback: How far can you push the faders before feedback sets in?

While this is easy to measure with traditional tools like feedback destroyers, EQs, automixers, it is hard to say here. Because this tool reduces certain frequencies in a way that apparently depends on many things, not entirely on gain.

🧵 1/x

So while I was experiencing some issues with omni headset #microphone|s today, as usual in #eventtech in corporate events without soundcheck, a colleague used #alphalabs #defeedback on another stage of the event, apparently succesfully.

De-Feedback is an #AI-based #audioPlugin for Windows and macOS, and depending on whom you ask, it's a magic wand, or not that helpful.

It's $499, and you need a decent host to run on (they sell a $699 box with Windows IOT 11), or #Waves #Livebox ($7000), I myself have a MacMini M1 with a touch screen and an #Rme #DigifaceDante (~2000€) that could handle ~2 channels of it…

… But the difficult part is to convince the client that he should pay for that feature that nobody needed before. Because if you screw your sound with feedback-preventing EQing, it's still good enough for corporate events.

Same holds for Waves #xfdbk, a pretty decent clasic #Feedback destroyer.

I must say I am a little frustrated. I know how I could improve things, but it's not working out economically.

Strategi Manajer RS Menghadapi Dilema Mutu dan Biaya

https://legawa.com/2026/05/29/strategi-manajer-rs-menghadapi-dilema-mutu-dan-biaya/

Updated the firmware of my #RME Digiface USB and also ticked the "CC Mode Active" box so that it's now a class compliant device. Ardour has no issues with it but PulseAudio on my Debian 12 system refuses to talk to it.

I kind of expected this as the USB ID stayed the same so the driver stack is still using the quirks introduced with the 6.12 kernel. That doesn't add up I guess. Probably best to flash the firmware again and untick the "CC Mode Active" box before flashing.

#RMEAudio #LinuxAudio

https://www.carlofelicemanara.it/public/file/File/Innovazione_Didattica/2012/Ripensando%20educazione%20matematica%20.pdf

Freudenthal :«Il valore che si attribuisce ai discenti come esseri umani determina il modo in cui ci si aspetta
che essi imparino la loro matematica: con libertà oppure da schiavi, guidati oppure imbrigliati».

“Nell'ambito della matematica, l'acquisizione di abilità e l'impiego di procedure e di algoritmi imposti e memorizzati, senza che siano compresi e motivati, rischia di diventare un addestramento analogo a quello degli animali da circo”.

#Freudenthal #RME

La Educazione Matematica Realista (RME), sviluppata da Hans Freudenthal, è un approccio didattico basato su

- Reinvenzione Guidata. Il docente guida gli studenti perché scoprano le procedure matematiche, anziché riceverle passivamente.

- Interattività. Gli studenti cooperano per trovare le soluzioni, l'esperienza del mondo reale è all'inizio del processo di apprendimento

Nei metodi tradizionali prima vengono le definizioni e poi le applicazioni.

#RME #Freudenthal #matematica #didattica