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  • Signal to Noise is a regular (monthly?) newsletter assembled by our own Danny O'Br
    312 bytes (36 words) - 13:50, 4 February 2011
  • 1 KB (193 words) - 10:12, 21 April 2023

Page text matches

  • * '''Signal is now a Member of Noisebridge.''' * Signal - privacy & anonymity, Deidentification and machine learning classes. Now w
    12 KB (2,110 words) - 17:03, 15 January 2015
  • ...ls will have artifacts or noise issues. Probably it will still amplify EEG signal sufficiently well to serve as an actuator for other projects. ...ime so it can be used as an actuator. The test task will be using some EEG signal (probably [http://en.wikipedia.org/wiki/Beta_wave beta power]) to buzz open
    7 KB (1,049 words) - 20:05, 11 May 2012
  • * Signal - Here in support of Aaron and against the institution that killed him Signal - Naomi and I have pinged the EFF about the Aaron Swartz hackathon. His bir
    19 KB (3,547 words) - 14:00, 6 November 2014
  • ..._Notes The 334th Meeting of Noisebridge]. Note-taker: Nthmost; Moderators: Signal. * Signal: helping maintain the library.
    15 KB (2,574 words) - 19:33, 25 February 2015
  • * Signal - I found a reference to an alternative energy company in the meeting notes Signal - Yesterday on the mailing list it came up that we need new projectors. For
    18 KB (3,239 words) - 14:38, 14 October 2014
  • ...g_Notes The 332nd Meeting of Noisebridge]. Note-taker: Nthmost; Moderator: Signal. * Signal, I like the hacktivists over there. Machine learning, hacking the planet.
    10 KB (1,671 words) - 19:45, 28 October 2014
  • -- "A 90nm CMOS Bio-Potential Signal Readout Front-End with Improved Powerline Interference Rejection" -- "A Negative Feedback Signal That Is Triggered by Peril Curbs Honey Bee Recruitment"
    94 KB (13,217 words) - 19:49, 21 October 2015
  • * Signal - picking up some IGG stuff to deliver stuff to Europe via trip to 31C3 ...bs, and a modified version of Five Minutes of Fame. Contact nthmost and/or signal for more info.
    7 KB (1,252 words) - 14:12, 26 December 2014
  • Note-taker: Nthmost; Moderator: Signal. * Signal - machine learning, NLP, biology, long walks on the beach flying kites.
    14 KB (2,479 words) - 21:21, 14 October 2014
  • ...o anarchist. here b/c i was told there'd be beer [because you brought it --Signal] * Signal - i like ML, nat lang processing, community development, hacktivism, let's
    12 KB (2,083 words) - 13:53, 10 December 2014
  • * Signal - Likes to work on de-identification and would like to talk about other way Signal: Doesn't foresee a problem, expecting high attrition rate. Greet people, su
    7 KB (1,155 words) - 20:32, 7 April 2015
  • Moderator: Signal * Signal: goes by Lemons artist formerlly known as signal joined by victoria and nthmost today.
    13 KB (2,285 words) - 22:49, 26 October 2018
  • ...us apart, within each sequence, 5 peaks @+5V, 4us each high, otherwise the signal is low. * SCK (PB5) - this sends lcock signal to the daughterboard
    13 KB (2,278 words) - 07:41, 5 January 2022
  • ...(the Tektronix 2235 works, the 1241 didn't) to our open-ecg-project output signal and tried it with various electrodes. ...sticky stuff is secure, signal does not vary with movement. If it's not, signal will show noise when you move.
    2 KB (347 words) - 22:40, 17 November 2009
  • ...; as with the thermocouple, you need an amplifier because of the millivolt signal. This led me to his source for sensors (http://www.americanmarineusa.com/ ...loaded with enough dye that they are almost opaque) would have a stronger signal (phosphorescence up to 0.5-1% of the brightness of the illuminating LED).
    18 KB (2,974 words) - 08:34, 26 September 2020
  • "Neural Network Parallelization on FPGA Platform for EEG Signal Classification" == Signal Processing ==
    44 KB (5,999 words) - 00:02, 9 January 2020
  • ==Custom EEG software: signal processing and pattern analysis== *I think it might be possible to write a gnuradio (software) signal processing block for EEG purposes - [http://www.gnu.org/software/gnuradio/d
    9 KB (1,506 words) - 21:11, 7 July 2020
  • * Analog signal output (0-5VDC, 0-2Hz) ...tart growing in amplitude. As soon as they stop walking, no matter where, signal outputs return to baseline.
    7 KB (1,013 words) - 07:31, 21 July 2013
  • Seperate modules provide signal amplification and filtering via op amps (Analog Devices OP4177, Burr-Brown ...rs of differential amplifiers boosting the approximately 100 microvolt EEG signal by a factor of 1000. Maximum input up to +/- 2.5 millivolts is amplified t
    3 KB (460 words) - 21:53, 31 October 2018
  • * Signal - I am Saturday! this saturday! * Signal talks about this Saturday's Punk Rock rewnewal party. We're now the only pu
    8 KB (1,462 words) - 16:08, 18 August 2015
  • upnpd[1554]: Shutting down on signal 15... Jan 1 00:06:25 upnpd[1554]: Shutting down on signal 15...
    37 KB (5,304 words) - 15:55, 19 March 2017
  • ...er side of the sensor with low to moderate pressure. When it does give a signal, the LED seems to blink at *half* the speed of your heart, i.e. each beat c ...schematics and BOM, along with nice graphs showing how great the heartbeat signal is.
    3 KB (603 words) - 13:23, 30 July 2009
  • ...ead board, put on some Red Dots, and it works! We were able to observe 1V signal spikes in time with hearts. ...to the other side of the chest or up to pendant location still worked, but signal was about 1/4 the size. Neck and arm electrodes showed nothing. We did get
    2 KB (399 words) - 21:37, 12 August 2009
  • ...kOhm. We also moved the signal electrode below the breast too and got good signal. Now we know why chest strips are great: the readings were good and the pla
    2 KB (323 words) - 17:00, 15 November 2009
  • ...at it's really about communication. In this instance I didn't get a strong signal, they need to be amplified. I didn't get as strong an indication that it wa ...ket of blindness amongst the folks that I brought it up would have trumped signal amplification.
    22 KB (4,157 words) - 23:23, 18 November 2014
  • * Signal aka General Populous- you may or may not have seen me dressed as a vulture ...led to give folks an idea if the space is open. First pass at some sort of signal that is externally observable. No storage, no public stream. 4 people with
    14 KB (2,380 words) - 20:49, 2 June 2015
  • * ([[User:Signal|Signal]]) * [[User:Signal|Signal]] - You don't need to be a member to sink money into Noisebridge. You can s
    10 KB (1,569 words) - 15:01, 10 June 2015
  • Now with new and improved signal! ...erter and maybe increase the supply voltage. The amplifier also provides a signal to Oh Happy Days.
    1 KB (191 words) - 21:19, 5 January 2022
  • +EVENT:LOG,57,5,DEBUG,46,Bootstrapping (5/14): Wait for carrier signal. +EVENT:LOG,57,5,DEBUG,46,Bootstrapping (5/14): Wait for carrier signal.
    4 KB (439 words) - 15:22, 21 May 2017
  • ...a fun hack to mix the outputs of function generators and other audio range signal generators. ...rminals in each corner of the cube and a stick with an end that presents a signal source to the liquid. There's always the CPU method of spitting bit slices
    6 KB (953 words) - 11:54, 20 November 2008
  • **#*What modulations of the signal are possible; intensity, spacing, direction, timing...? Based on that, what ...nal can the brain interpret meaningfully (too much noise vs. too weak of a signal)? Based on that, what is the <em>practical</em> bandwidth that we might exp
    5 KB (699 words) - 14:57, 3 March 2022
  • ...oot limit). BUT, bouncing the signal off our rough-textured wall made the signal much more robust - cone nearly 180 deg, and audible as far away as we can g Taking it outside, we discovered that distance is no problem - the signal can be clearly heard at 25 feet (and probably much further). BUT, the angl
    3 KB (439 words) - 21:36, 24 August 2009
  • ...with bypassing the Open ECG chip at filtering/amplifying the bio-electric signal. We worked off of the lab document [http://www-univie-ac-at_cga_courses_BE5 ...t only lowered the amplitude. We were using red dot electrodes, so the ECG signal was entering the chip reliably. More work to be done on this front.
    4 KB (679 words) - 09:50, 20 April 2012
  • [https://sites.google.com/site/wmvanvliet/tutorials/eeg-signal-analysis EEG Data Analysis tutorial with Marijn van Vliet] and [https://git <br> [http://www.dspguide.com/ Free book on digital signal processing]
    14 KB (2,037 words) - 09:09, 5 January 2022
  • ...owd starting jumping up and down, within 1-2 meters of tower, then Doppler signal would maximize. This maximal state could then set off some fantastic effec All Dopplers will have a RJ45 cable linking power and analog signal from a host junction box placed on one of the supports. Primary 5VDC and GN
    3 KB (537 words) - 21:46, 17 July 2013
  • ...alling in a ringer 2015-02-26 .jpg|none|640px|thumb|Finally we picked up a Signal]] ...sually find hackers who tend to be down to help others with projects. With Signal's help we made more progress and got a few tips on how to solder the LED st
    4 KB (730 words) - 01:41, 3 March 2015
  • * Signal - I am brief. I hack on things related to biomedical interpretation. * torrie - generally a large "block" is a good signal that the community isn't being communicative enough about the thing. nobody
    10 KB (1,770 words) - 20:55, 4 August 2015
  • 0.8 volts near the end of the cycle. Six comparators compare the integrated signal, V_out and turn on their The voltage divider on opamp #1 divids the 12Vrms input signal by 10. (With R14 providing fudge factor) So we end up with:
    1 KB (265 words) - 21:45, 12 November 2008
  • *** this is an input signal (tying this to GND works fine if you just want the reader to ''stream'' dat *** the leading / means that this signal is ''active low''
    1 KB (245 words) - 19:01, 18 April 2009
  • ...and the wire to connect them up. The pager motor array receives power and signal from the shift register, which activates one of eight pager motors. The pa ...nect to a pin on the Arduino which is capable of PWM. (PWM lets a digital signal simulate analog, and the enable pin needs analog input if you want to be ab
    18 KB (3,190 words) - 19:29, 23 November 2010
  • |Rods and cones turn light into electrical signals which go through massive signal processing before sent to optical nerve ...act differently in other species as well. Obviously there must be complex signal processing libraries with nerves as the retina is using these.
    7 KB (1,073 words) - 14:43, 12 May 2009
  • ...two of these chips, they are clearly the heart of the thing, dividing the signal into the audible range.</li> ...- "High-Speed CMOS Logic Phase-Locked Loop with VCO", this is probably the signal conditioner between the mic and the binary counter.</li>
    10 KB (1,639 words) - 19:29, 23 November 2010
  • ...works, in fact they do a lot of magic in the software, and say that if the signal is noisy the BPM will be wrong. ...is way they deal with ambient light fluctuations. But I don't know if the signal we want (reflectance difference due to pulse) would survive this treatment.
    2 KB (270 words) - 15:37, 21 July 2009
  • We added the new pins and some signal-averaging for the ECG signal. We also added a 100-point rolling average with stdev calculation. The LE
    4 KB (577 words) - 15:45, 10 June 2012
  • ...urrently has no remote. It faces the west wall and accepts power and video signal from the southwestern corner of the room. ...t the power button twice with the stick, or let idle for 5 minutes with no signal for automatic shutdown.
    2 KB (287 words) - 20:17, 10 August 2014
  • # Confirm green light on Opentracker to indicate APRS signal # Confirm red LED flashes on radio to indicate VOX mode signal transmission
    2 KB (237 words) - 11:25, 7 January 2022
  • Signal input cable PTT radio signal cable
    2 KB (226 words) - 11:24, 7 January 2022
  • signal: -50 dBm signal: -50 dBm
    5 KB (795 words) - 20:53, 24 September 2013
  • This is some ethernet cable split and used as low-voltage signal wires. Added to this, the red LED and front buzzer share a signal wire pair. Green and yellow are used for these. The [[wp:LED]] has bias, a
    2 KB (296 words) - 18:09, 27 June 2023
  • ...lyester-film capacitors (they look like chicklets or little boxes) for the signal path, but except in rare cases where a tantalum capacitor is called for (e. .... These are pricey (up to $15), but let your pedal isolate itself from the signal path when not in use ([http://www.generalguitargadgets.com/index.php?option
    2 KB (371 words) - 11:48, 1 February 2011
  • ...r can handle that, you're golden. Otherwise enjoy sorting out some sort of signal shift.<Br>
    3 KB (513 words) - 13:12, 17 April 2016
  • ...) Outputs can drive anything that responds to an electrical signal. If the signal required is greater than the voltage or amperage a pin can deliver, some ex
    7 KB (1,085 words) - 21:37, 20 March 2012
  • 2 sync bytes signal beginning of new packet to avoid in-band signal/data ambiguity mis-parsing
    3 KB (462 words) - 17:48, 25 August 2013
  • - poor signal (electrode contact) - artifact rejection (poor signal, eye blink)
    5 KB (690 words) - 00:43, 3 June 2013
  • ...ed at themself at the discretion of the moderator by way of an agreed upon signal <br> Other groups use hand signal (pointy fingers) to signify 'want to give direct response'
    5 KB (873 words) - 22:32, 13 August 2013
  • 09/23 through 10/10 signal checking for available frequencies.<br> ...tanance Disadvantages: Fewer listeners because smaller coverage are due to signal being blocked by local hills.
    10 KB (1,266 words) - 14:29, 7 January 2022
  • Kevin: Working with Dan digital signal processing Dan: signal processing
    10 KB (1,686 words) - 15:15, 13 September 2013
  • *'''SIGSEC:''' Signal security. Countermeasures against eavesdropping or failure of radio communi * '''Encrypted Messaging:''' Apps like Signal are good alternatives to regular text messaging as they offer stronger cryp
    9 KB (1,393 words) - 23:52, 30 March 2022
  • * [[User:Signal|Signal]] OK
    721 bytes (98 words) - 08:04, 24 March 2015
  • ...ve intelligence, and many loosely related topics such as: neurophysiology, signal processing, cognitive neuroscience, and (especially) hacking code and devic ...nTopics to include: Transducer Physics(speakers and mics), Room Acoustics, Signal Path and Cabling,Loudspeaker design 101, Music Production Tips for Big Soun
    33 KB (5,073 words) - 22:50, 9 July 2019
  • Signal - Promotion efforts, setup and teardown Signal - 1
    1 KB (188 words) - 14:04, 3 March 2022
  • ...Hicks]], Howard Tsu, Julio Talavera, Torrie, Olivier, Andrew, John, Amber, Signal, and Jake.</big> ...d Hicks, Howard Tsu, Julio Talavera, Torrie, Olivier, Andrew, John, Amber, Signal, Jake
    5 KB (765 words) - 15:19, 11 September 2022
  • * Privacy and whistleblower technology, like Tor, Signal, and SecureDrop * Hardware projects like the pocket Tor proxy, the Off Pocket, and signal jamming devices
    8 KB (1,244 words) - 13:03, 1 March 2022
  • ...lower. The input it attached to the mixer aux send 1. Any channel can send signal to the Nord, including the Nord, so WATCH OUT! Feedback warning. This is an
    4 KB (611 words) - 15:36, 15 June 2017
  • ...ty resources to conduct research and experiments on the subjects of sound, signal and noise. The secondary objective is a commitment to a Free/Libre Open Sou ...ls/ "Circles, Sines, and Signals"] is an easy read about sound and digital signal processing.
    5 KB (693 words) - 14:13, 22 October 2022
  • ...m/files/down/neg-invr.pdf) and you can use a PWM'd IO pin to generate this signal and thus negative voltage. While this works, driving it off of a 5v IO pin
    4 KB (629 words) - 16:51, 10 May 2016
  • ...al 8 x 8 analog signal routing matrix; switch and route any type of analog signal within the range of +/- 5V.
    3 KB (428 words) - 21:36, 19 December 2016
  • Like signal info, etc. Oh yeah: Tor, Signal, installing updates, 2FA, Tails in some cases, maybe Onionshare, that kind
    5 KB (785 words) - 18:32, 9 November 2016
  • ...s, the headphone thing, it would be nice if there was a general understood signal for "I'm here, I have something to do". cowlicks - it's not the responsibility of the person being harassed to signal that they need to be bother it.
    20 KB (3,323 words) - 21:44, 9 May 2017
  • ...w to Make Cool Sound and Music with Microcontrollers (and intro to Digital Signal Processing)''' ...over the basics of how to make cool sound, noise, and music using digital signal processing (DSP), using my ArduTouch music synthesizer kit as an example.
    8 KB (1,179 words) - 20:32, 25 August 2017
  • ...an be performed via the 6-wire interface programmer. Since the programming signal is very sensitive, the user needs to use the programming pin 5 jumpers (V D Signal
    140 KB (13,158 words) - 15:20, 20 October 2017
  • *Show multi-signal overlay ID Signal Note
    2 KB (279 words) - 16:29, 9 January 2018
  • ...ntrols. The sensor feeds data back to the Arduino Mega which monitors the signal for movement. As movement occurs, a timer is reset and status bit 12 is se maybe physically generate a plug/unplug signal via detection to arduino and trigger this:
    8 KB (1,145 words) - 23:43, 9 July 2019
  • ...tive of a fracture within the community, and usually is viewed as a strong signal of underlying issue that needs to be addressed. It's the responsibility of ...ne, where things only go on Slack when there's a problem. The absence of a signal in #space-guardians is not a bad thing, but no positive feedback there. In
    38 KB (6,563 words) - 19:56, 8 August 2018
  • Investment distraction, signal, economic APIs. Signal.
    10 KB (1,611 words) - 22:52, 18 September 2023
  • ...ewer.ipython.org/github/unpingco/Python-for-Signal-Processing/tree/master/ Signal Processing IPython Notebooks] **Real-time audio signal processing
    15 KB (1,991 words) - 18:03, 29 November 2023
  • The circuit in the first is an audio signal going through a bridge rectifier to a speaker, which I haven't built (yet),
    11 KB (1,683 words) - 09:51, 21 June 2023
  • // low->high transition at the beginning of the power signal.
    5 KB (731 words) - 19:40, 3 February 2009
  • ** Signal generator
    7 KB (1,190 words) - 20:47, 20 July 2010
  • Signal generators<br>
    2 KB (281 words) - 11:18, 13 April 2009
  • ...next to LED, polarity on bottom silkscreen) , and got lovely +5 logic high signal by waving my hand over the sensor, 300-400 ms long. These units are ready t
    2 KB (310 words) - 17:51, 19 April 2009
  • ** signal filtering / using an accelerometer
    5 KB (733 words) - 11:00, 10 April 2009
  • // The same pin is used to read the signal from the PING))): a HIGH
    3 KB (378 words) - 15:24, 25 February 2011
  • ...is built the controller can have a flexible interface allowing any sort of signal pattern to be mapped onto it, perhaps over XBee or Bluetooth from a compute
    2 KB (327 words) - 00:06, 19 November 2010
  • ...omputer talked. There may also be a lone vibrator, which could be used to signal to the wearer a variety of things (like pulse, but also time or low battery
    6 KB (932 words) - 09:52, 20 April 2012
  • ...moving one's foot half a degree to leave that zone - would be to add some signal smoothing to the code so this situation is less common.
    4 KB (623 words) - 11:03, 24 April 2009
  • # Update the [[Network]] page on the wiki to signal your intent to claim the address.
    4 KB (606 words) - 17:02, 26 April 2011
  • The other 3 signal pins are all free because of the rotation. The remaining GND pins are inte
    3 KB (609 words) - 17:57, 9 June 2009
  • ...a reading of 1.2V without finger, 1.073V with finger. Whatever the pulse signal is with finger, it's too small for the multimeter to read. Clearly we'll h
    1 KB (217 words) - 20:27, 7 July 2009
  • ...n the transistor. With room lights on we are able to observe considerable signal from the transistor when we darkened it (by placing something in front of i
    3 KB (461 words) - 22:52, 16 July 2009
  • We're exploring methods of filtering and amplifying the signal. There is a interesting part which does some filtering right inside the de
    3 KB (518 words) - 22:18, 22 July 2009
  • More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart
    3 KB (304 words) - 15:43, 2 August 2009
  • ...251.), but we couldn't seem to get anything that looked like a heart-beat signal. We did however get something other than 60 Hz square wave, so we think we
    2 KB (251 words) - 16:26, 16 August 2009
  • ...r nodes means that you have a lot of redundancy to separate the wheat (the signal[s] you're interested in) from the chaff (artefacts due to you moving around
    4 KB (692 words) - 03:24, 6 January 2012
  • ...n the o-scope, but couldn't get it to show us the bounced sound (reciever) signal. Not sure what the problem was - o-scope seems to not be working on channe
    1 KB (200 words) - 21:43, 28 September 2009
  • ..., the LEDs resort to flickering like a candle flame. It’s not a consistent signal as with Eric. =(
    5 KB (642 words) - 01:28, 2 October 2009
  • **Strong Eyes closed signal
    1 KB (163 words) - 21:12, 7 July 2020
  • ...ything was functional! The blinking was still finicky - we'll focus on the signal processing later.
    2 KB (293 words) - 21:30, 15 October 2009
  • ...Chen, et al., 2004). We think we'll stick with the ECG method though. The signal is good. We just need to spend time processing it to remove muscle artifact
    1 KB (169 words) - 17:29, 13 December 2009
  • * Make Icarus signal an external camera at a particular altitude threshold (eg, to start a video
    1 KB (206 words) - 00:11, 26 January 2016
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