3 ms·

I'm an instrumentation junkie at heart, but I'm a pragmatist first. I have a cheap receiver and cheap speakers. What I want so badly is for software solutions

I'm an instrumentation junkie at heart, but I'm a pragmatist first. I have a cheap receiver and cheap speakers. What I want so badly is for software solutions to be properly cheap. Rooms are relatively static conditions, meaning a simple FIR filter can be tuned once and give consistent results. Calibrating speakers and room multipath should not be gatekept with $1000+ hardware. Freedsp is the only name I know that offers a cheap option. They are a modest operation that only supply designs and bare boards. Integrating freedsp into a modern home theatre setup requires inelegant solutions (Source -> TV -> Receiver -> freedsp -> amplifier). I just wish there was any competition left in the big players to push measurable home audio performance higher.

Sesse__ 4y ago
If you already have a receiver, pretty much anything these days will come with a room measurement system to create that FIR filter. You don't get the coefficients, though.
- willis936 4y ago
  Unless you spring for fancier receivers the most you get is parametric EQ weights. It's a simple IIR filter rather than a proper FIR.
MisterTea 4y ago
> Calibrating speakers and room multipath should not be gatekept with $1000+ hardware. Not really that expensive: https://www.parts-express.com/Dayton-Audio-OmniMic-V2-Acoustic-Measurement-System-390-792?quantity=1 https://www.parts-express.com/Dayton-Audio-OmniMic-V2-Acoust... https://www.parts-express.com/search?order=relevance:desc&keywords=dsp https://www.parts-express.com/search?order=relevance:desc&ke...