ssfrr

7 ms·

31.
by ssfrr 2y ago
I'm curious how HFT relates to pro audio programming. The timescale is close to gaming (usually <10ms for desktop PC work), but you really care about the tail of the distribution. All the audio processing happens in a high-priority
32.
Real-time audio programming 101: time waits for nothing (2011)(rossbencina.com)
236 points by ssfrr 2y ago|121 comments
33.
by ssfrr 2y ago
I loved this insight on the difficulty (and often futility) of trying to gamify learning: “only after they’d satisfied the primary constraint of making something fun, or beautiful, or whatever, the designers figured out how to ensure people
34.
by ssfrr 2y ago
30fps is 33ms per frame. I'd expect that to be fine for most free-space gestures (for musical instruments you generally want <10ms, but that's most noticeable with discrete impulsive events like hitting a drum pad, and even the
35.
by ssfrr 2y ago
I did similar long baseline acoustic localization for my dissertation a few years ago. We had about 15 microphones deployed in a wetland for bioacoustic monitoring. https://resenv.media.mit.edu/pubs/theses/Resynthe
36.
by ssfrr 2y ago
just googling didn't come up with anything for me. were there specific sites you found info on?
37.
by ssfrr 2y ago
This is the first time I’ve heard the term “shifting left”. Maybe I missed it, but is this the same as TDD?
38.
by ssfrr 2y ago
1303789 Serious question - why do so many people remember our ICQ numbers? I don’t remember what user-facing function it served. Was that actually the identifier we shared with people to connect? I suppose it also came at a time for a lot o
39.
by ssfrr 2y ago
Oh man, soulseek brings back serious nostalgia for me. Is it still pretty active?
40.
by ssfrr 3y ago
the languages listed (Pure Data, Max/MSP, Reaktor) are all visual languages where you connect up boxes with wires, similar to labview. I usually associate the term "Dataflow language" to refer to these types of languages, but
41.
by ssfrr 3y ago
What you probably want is to place a virtual listener/receiver where the NPC is, so the system would use the same rendering that it does for the player. Then you put an envelope detector on the signal and you have an approximation of h
42.
by ssfrr 3y ago
Sounds like Stephen baxter’s Manifold: Time. She’s a squid not an octopus, but same idea. Great book!
43.
Algebraic Effects for the Rest of Us (2019)(overreacted.io)
3 points by ssfrr 3y ago|0 comments
44.
by ssfrr 3y ago
The status quo they describe is a printing process where material is deposited and then UV cured, then there’s some kind of scraping process. That seems like a hybrid of FDM and lithographic printing from a vat of goo a la FormLabs. Is that
45.
by ssfrr 3y ago
I think if I were going to the trouble of dockerizing and isolating all my tools, I wouldn’t want to rely on someone else’s registry of dockerfiles. This reminds me a lot of the cycle of sandboxing: https://xkcd.com/2044&#x2
46.
by ssfrr 3y ago
Yeah, this is my understanding also. I don't understand how this is better than the publisher signing the content with their own key though, rather than relying on a special microphone. I wish the article was more clear on what threat
47.
by ssfrr 3y ago
> In our setting, we can compute a function that computes the hashes of the inputs and outputs the edited audio from the inputs. By revealing the hashes, we can be assured that the inputs match the recorded audio! I don't understand
48.
by ssfrr 3y ago
k: super terse language inspired by APL and lisp q: slightly less-terse language written in k, with similar semantics. The vendor (kx) supports q, not k kdb+: column-oriented database bundled with q
49.
by ssfrr 3y ago
Your comment makes it sound like they’re using some task-specific library, but this looks like pretty generic standard library functions to me.
50.
by ssfrr 4y ago
Yeah, the fact that the same symbol is overloaded with two meanings for the one-arg and two-arg (infix) cases adds some overhead to reading APL code. The precedence rules are very simple and uniform in isolation, but personally I find that
51.
by ssfrr 4y ago
When used with 2 arguments, e.g. `a ≢ b`, it indeed is called "not match", i.e. are `a` and `b` the same. When used with 1 argument, `≢ a` it will give you the number of elements.
52.
by ssfrr 4y ago
The use of ASCII was a concession to the state of technology at the time. I don't think he actually preferred the ASCII digraphs to APL glyphs.
53.
by ssfrr 4y ago
> No one time investment is needed if you want to learn J. I don't understand the "{J,K,Q} don't require you to learn new symbols" argument. You're learning a mapping between symbols and functionality, not litera
54.
by ssfrr 4y ago
Say you have some variable you are tracking, which is due to some underlying phenomenon, with some noise. In this case it's the average summer temperature (so each summer gives 1 datapoint). The simplest model is that the underlying ph
55.
by ssfrr 4y ago
LDVs are the gold standard for noncontact vibration measurement and are widely used in acoustics. The main problem is that they’re pretty expensive (I think on the order of a few 10s of k$)
56.
by ssfrr 4y ago
The author identified the cause of the integration-to-zero behavior - they've set the DC (0Hz) component to 0, so the signal must sum to 0. Any length-N signal can be thought of as one period of an N-periodic signal, so the FFT will be
57.
by ssfrr 4y ago
> The only real major inconvenience using it is the fact that it constantly pauses to calibrate itself to the temperature range it is being exposed to, a process that freezes the screen and UI for well over a second. Does anyone know wha
58.
by ssfrr 4y ago
How do you think about the k/q split? Do you ever drop into k or use q exclusively? Is q mostly just longer aliases for k verbs or do the semantics differ?
59.
by ssfrr 4y ago
Really enjoying the interleaved CL and flashbacks to Media Lab history
60.
by ssfrr 5y ago
Do you have a good reference on the relationship between quantum computers and Fourier transforms? I’m a DSP researcher by day and this is the first time I’ve heard about this, so my interest is piqued.

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