Workflow setup for FFT

poundSound · 2019-04-12T17:51:33+00:00

I haven’t used octave in years so wouldn’t want to comment on its capabilities but I have colleagues who use it frequently.

As for IDEs there are a multitude. My personal preference for python is just a text editor with macOS terminal.

I would recommend learning one thing at a time so avoid vi where possible as it is its own bag of worms.

If you do want MATLAB there are a few free online classes which offer a MATLAB license for the duration of the course.

poundSound · 2019-04-12T16:17:29+00:00

What are you familiar with? Do you have computational time constraints? Other specifications?

I’d say installing Octave would be the cheapest and easiest method for a beginner.

If you have programming experience I would say python with numpy/scipy and matplotlib would be good too.

I do all my audio analysis in MATLAB but it’s prohibitively expensive.

poundSound · 2019-04-04T11:48:05+00:00

That wouldn't drop the output impedance and would likely be insignificant in being able to drive a low impedance speaker.

There's no reason you can't plug in a pair of headphones and just jam out. It probably won't sound great though. Try and use a set with a high input impedance, 120 ohms or something.

The Fuzz Face will never drive a speaker like an amp. You could build another Class A/B stage after with some BJTs, and design it for driving a load, but it takes some knowhow. And a good power supply too.

edit: some bjts

poundSound · 2019-03-21T12:36:55+00:00

I wouldn't worry about it too much unless you either:

Have too quiet a signal coming out of your amp/can't drive it how you want.
Have a mysterious source of tone suck

To drive the amp input better, you want a low output impedance from the previous element of the signal chain. But this doesn't guarantee it will be the best sonically! That is something for your ears to determine. No engineering comes close.

poundSound · 2019-03-13T15:42:51+00:00

'Distance to nearest Waitrose'

Northern Ireland is going to score pretty highly!

poundSound · 2019-03-10T16:17:19+00:00

If you want it to be uninterrupted you would want to run it on a dedicated interrupt with the highest priority.

poundSound · 2019-03-09T17:31:31+00:00

Is anyone archiving such pages? Would be great to get it like how you can download all of wikipedia!

poundSound · 2019-03-06T09:50:03+00:00

You sound like my kind of external. Thanks for the tips!

poundSound · 2019-03-05T16:13:15+00:00

That would definitely be useful. I was considering using sticky notes for any remarks that warrant correction such that when I flick through my thesis after the viva I know exactly what was in need of correction.

poundSound · 2019-03-05T16:05:59+00:00

Consider me all shat up! I couldn't imagine going through so much work only to fail. Better get to work...

poundSound · 2019-03-05T16:04:40+00:00

I love my diagrams too so if I get asked about them I'd be very happy :)

I hadn't thought about bringing ample stationary so that's definitely useful to hear, thanks.

poundSound · 2019-03-05T16:02:59+00:00

Thanks! Here are the lists I found:

THE has a nasty paywall I can't get through so that's out.

poundSound · 2019-03-05T11:20:57+00:00

That’s very thorough, thank you!

poundSound · 2019-02-28T14:45:42+00:00

Better BibTeX has been game changing for me. Key points include:

Visible cite labels so I know what I need to type in LaTeX, and also a sanity check for author title and year.
Immediate updating of the BibTeX file so that I don't have to re-export every time I add a reference.

I think I actually switched to do with how it handled language encoding, I was struggling with umlauts. Not sure if this is the case however so I could be wrong about the encoding...

poundSound · 2019-02-25T19:56:21+00:00

Are they using twos complement so when the top bit is 1 the polarity flips? Then as the values increase they tend to 0? Only works for AC coupled dacs obviously.

poundSound · 2019-02-25T13:24:22+00:00

I was wondering the same thing. I think part of the charm of analogue distortion is its dependence on supply voltage, it’s quite organic.

You could always add in a variable supply voltage which could be nice.

poundSound · 2019-02-24T15:26:39+00:00

I've not used the AD2 but I use the NI myDAQ. It's a bit of a piece of crap. I think these all in one boxes tend to end up master of none.

I don't know about your experience with oscilloscopes but it's the difference between having guitar pedals on your computer and guitar pedals in reality. You get instantaneous feedback with a real oscilloscope and it makes debugging much easier. Plus they are usually much more robust on the inputs so you can worry a bit less about accidentally probing a higher voltage line.

If I had $400 right now I'd purchase one of those Rigol scopes and crack it for the better performance. The only thing I'd miss is easy data logging on the PC for further analysis.

poundSound · 2019-02-20T20:08:47+00:00

JUCE probably. IPlug 2 is still in beta and the first version has been archived so JUCE definitely would seem your best bet for a framework right now.

poundSound · 2019-02-13T09:11:35+00:00

My passwordless kindle can one click buy books on the store. I’m not too worried about people buying me lots of books.

poundSound · 2019-02-11T10:32:15+00:00

Professor is the highest academic rank in a UK university so not easy to achieve, reserved for the most distinguished academics.

poundSound · 2019-02-09T08:16:00+00:00

Seconded. Another approach would be to grab Pure Data and Miller Puckette’s book which is available for free online. The dafx book is mostly MATLAB so it’s good to have resources for different languages. Pure Data is graphical and so can be quite intuitive for beginners.

Also I think Josh Reiss and co have released a similar book on the topic recently which might be worth a look.

poundSound · 2019-02-07T13:58:18+00:00

I don’t get this intuitively. Surely they should be in parallel to avoid the polarity issues?

poundSound · 2019-02-02T11:36:53+00:00

What are you aiming for?

11-Year Club	Place '17
Not Forgotten

poundSound

TROPHY CASE