Hedy Lamarr, 1938 for the movie β€œAlgiers”. Actress and inventor of early frequency hopping spread spectrum that would one day form the basis of Wifi, GPS, and Bluetooth systems. reddit.com/gallery/rmpdlp
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πŸ‘€︎ u/chickentits97
πŸ“…︎ Dec 23 2021
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Should I try to fill the whole frequency spectrum at any part of a track?

I know that a producer should try to make the spectrum as wide as possible but I think I'm overthinking it lately. I mean should this rule be applied everytime and even if there are some "instrument solo" parts add some white noise or a pad or something or are there any exceptions?

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πŸ‘€︎ u/carloos1s
πŸ“…︎ Dec 18 2021
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As light is part of the electromagnetic spectrum why is it referred to in terms of photons whereas frequencies that are higher/lower are not?
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πŸ‘€︎ u/DrBob2016
πŸ“…︎ Oct 05 2021
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Oh, look, the sun is at a particular azimuth to filter out the higher frequencies of the visible spectrum near the greater Dallas area. Again.
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πŸ‘€︎ u/logixdude
πŸ“…︎ Dec 10 2021
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The waterhole, or water hole, is an especially quiet band of the electromagnetic spectrum between 1420 and 1662 megahertz, corresponding to wavelengths of 21 and 18 centimeters, respectively. It is a popular observing frequency used by radio telescopes in radio astronomy. en.wikipedia.org/wiki/Wat…
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πŸ‘€︎ u/VerGuy
πŸ“…︎ Dec 12 2021
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Pro tip: If you're experiencing overt deplaneration in the higher frequency range, try adding a translateral spectrum decoupler to your set up, it can greatly reduce subattenuation at lower decibels.

For years audiophiles have struggled to resolve their audio's deplaneration and subattenuation without also introducing distal noise redundancy or unnecessary quavering into the proattenuated frequency spectra.

The solution, as was recently discovered, is introducing a translateral spectrum decoupler between the unipolar phase rectifiers and the wave guide amplification unit (If you have tripolar phase rectifiers you're out of luck), this resulted in a 37% reduction in deplaneration and a 27% increase in intraaural dopaminergic activity vis a vis improved neuronal interlocation and focal rectificance.

Since I added a TSD to my setup I've noticed a marked drop in sinusoidal fault interrupts and much more transparent spectrum frequency saturation, I'd say the mod bumped my HD58X from a seven on the Smithson/Marzle scale to at least a three, maybe even a two! Plus I haven't experienced side fumbling in months (I think it's due to the improved torsion distribution and remodulated volumization capacitance, but I could be wrong.) To think some people spend thousands of dollars to address their headphone's deplaneration and subattenuation when all it took me was an afternoon and a gram of nonchromatic flux inhibitor, now Netflix has never sounded better!

Honestly it's a mod I think everyone should try, I hope this was helpful!


Please note that installing a translateral spectrum decoupler without initially flushing your frequency capacitors could result in full or partial scapular grinding, so make sure to wear untextured rubber gloves when you install it.^1 (We don't want another Valikov incident, do we? LMAO! 🀣 But seriously, my thoughts and prayers go out to her family.)

^([1: Waffleman, Shuster, & Dane et al, .ed])

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πŸ‘€︎ u/MaximumEffort433
πŸ“…︎ Oct 08 2021
🚨︎ report
Question about perception for a certain frequency spectrum

This might be a little hard to describe. When altering sounds or entire groups of elements to eliminate extraneous noise, fit with other elements, etc, I find myself creating a mix that sounds almost "too smooth" or dull, or maybe just kinda boring, and in listening I think I've realized the problem is that, after maybe 10-20 minutes of listening and working with a mix, my ears kinda compensate and I begin getting into a hole of consistently cutting possibly too much high end simply because I hear, for example with a string plugin, some noise from when the samples were recorded, or with a piano plugin, I may hear some clicking from the environment when the key is pressed, and I typically cut that because, if I pay attention too much, those mid-higher frequencies annoy me to no end. I'm not sure why. It's almost like a dog reacts to very high pitches from a dog whistle. I've listened to other songs and realize that they often keep in the air and noise, and it sounds better, but if I listen for it specifically, it will start grating at my ears and I won't be able to unhear noise from an amp etc.

Anybody else have this problem where a certain frequency range just does not agree with their brain? How do you get past it?

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πŸ‘€︎ u/bilboard_bag-inns
πŸ“…︎ Dec 04 2021
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Another one of my crystal radios,a bit more advanced than the last one,it can recieve frequencies on the upper AM spectrum and has an antenna tuner too,for some interesting results,you connect earphones to the paperclips .The other image is a Longwave coil i made, def will use it in my next radio. reddit.com/gallery/r2z9dm
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πŸ‘€︎ u/ZatannaIzSwag
πŸ“…︎ Nov 26 2021
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Do safe volume limits apply to any particular frequency or the the entire spectrum?

For example, when an article says it's safe to listen continuously to 80db for 8 hours, does this value of 80db apply to all frequencies or is it lower for higher frequencies and higher for lower frequencies?

How much more dangerous are higher frequencies than say 125hz?

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πŸ‘€︎ u/VeryPervyGirl
πŸ“…︎ Nov 22 2021
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I get a lot of resonance on my tapes. Is this normal for cassettes or a quirck of my record deck? I attached a recording of a spectrum analyser clearly showing the resonant frequencies. A quick search only gave Tesla - Mechanical Resonance, which is not what I wanted but a good album nonetheless. v.redd.it/nreeu056df181
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πŸ‘€︎ u/MelvinHobby
πŸ“…︎ Nov 23 2021
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This chart I found maybe helpful for those interested in what materials offer shielding for what freq spectrums. I searched for such materials on eBay and all offerings for various faraday cage materials are pricey and from China of the low frequency ranges. reddit.com/gallery/rcle3r
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πŸ‘€︎ u/Minute-Step6028
πŸ“…︎ Jan 03 2022
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When it comes to creating a clear distinction between instruments while mixing, is it more important to have a difference in volume or a difference in the frequency spectrum? (More in comments) v.redd.it/vsxdfgkykiv71
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πŸ‘€︎ u/warmbumby
πŸ“…︎ Oct 25 2021
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How do spectrum analyzers and EQs parse frequencies from a single audio clip?

How exactly do frequency analyzers take a waveform and calculate the frequencies that make it up? For example, the plugin SPAN by Voxengo takes an audio input and calculates the frequencies that make it up. How does it do this?

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πŸ‘€︎ u/owenleemusic
πŸ“…︎ Nov 14 2021
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This chart I found maybe helpful for those interested in what materials offer shielding for what freq spectrums. I searched for such materials on eBay and all offerings for various faraday cage materials are pricey and from China of the low frequency ranges. reddit.com/gallery/rcle3r
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πŸ‘€︎ u/pagetelegram
πŸ“…︎ Dec 09 2021
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[Rule] This is a guide showing where instruments lie on the frequency spectrum. Very useful for IEMs, headphones and musicians.
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πŸ‘€︎ u/Kirei13
πŸ“…︎ Nov 30 2021
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"The Genetic Architecture of Obsessive-Compulsive Disorder: Contribution of Liability to OCD From Alleles Across the Frequency Spectrum", Mahjani et al 2021 ajp.psychiatryonline.org/…
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πŸ‘€︎ u/gwern
πŸ“…︎ Nov 21 2021
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Acon Digital "Defilter" tool to even out tonal imbalances in a mix or reduce resonant peaks or dips in the frequency spectrum ($29) through 1 December pluginboutique.com/produc…
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πŸ‘€︎ u/Batwaffel
πŸ“…︎ Nov 22 2021
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NASA Television: Watch Live Scientists hope the use of laser technology by space missions will prevent the overcrowding of the radio frequency spectrum. nasa.gov/multimedia/nasat…
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πŸ‘€︎ u/Aerothermal
πŸ“…︎ Dec 05 2021
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Frequency spectrum

Is it possible to match the frequency of an audio track to another? Someone gave me two songs, that are the same song, and wants me to edit one to sound like the other. I'm not hearing a difference, so I figured I'd just literally make them the same (frequency-wise)

is this possible? Preferably something free since I'm not getting paid to do this? Lol

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πŸ‘€︎ u/91JLD
πŸ“…︎ Oct 13 2021
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T/R modules are key elements that goes into Radars & EW systems. Today, several Indian Pvt Companies are capable of producing these in large numbers. DRDO already has established 'GaAs' as well as 'GaN' Foundries at GAETEC. 'Full Frequency Spectrum Band' in 'GaN' by end of the year. mobile.twitter.com/AtuL16…
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πŸ‘€︎ u/Blank_eye00
πŸ“…︎ Oct 24 2021
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I'm producing one of my first tracks on FL (melodic house) and I think it sounds good enough to me, so I want to go about mixing it down and mastering it. But when I loaded up Voxengo SPAN on my master it shows me a very weak frequency spectrum and I don't know what to do next. Can someone pls help?

I tried uploading the image onto a post but it didn't submit even after a while, so I'll share the link to it here.

As I said, I think it sounds good enough and I don't want to over-produce, so if someone can please see the spectrum and tell me what I need to do next without ruining the track it would be of much help...

Thank you in advance [Track MP3 File] (https://sndup.net/4pkb)

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πŸ“…︎ Sep 08 2021
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[Meter Reports: Audio Spectrum] Intervals of 11.72 hz. This is the smallest interval yet. Majority of sounds are low frequency sounds in living room.
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πŸ“…︎ Oct 01 2021
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[Meter Reports: Floor] [Meter Reports: Vibrations Frequency] Unique accelerometer spectrum measurements in garden. Almost two straight lines. No interval but there are repeating frequencies. Highest frequency is 59.36 hz. Stray voltage from 60 hz power line?
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πŸ“…︎ Oct 16 2021
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The frequency spectrum of the operators is insane.
πŸ‘︎ 40
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πŸ‘€︎ u/Machlath
πŸ“…︎ Oct 05 2021
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Is there any transreceiver out there that covers the entire HF/VHF/UHF frequency spectrum?

I'm a newbie ham enthusiast and was wondering if anything like that was available.

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πŸ‘€︎ u/wingman74
πŸ“…︎ Aug 25 2021
🚨︎ report
[Meters: Apps: Sound: Spectrum Analyzers] Spectrum Analyzer Audio app by Trajkovski Labs displays sounds from 40 hz to 16 kHz. Easy to see the spectrum of the hum is simultaneously all those frequencies. This app does not show infrasound lower than 40 hz and ultrasound. The hum has those too.
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πŸ‘€︎ u/microwavedalt
πŸ“…︎ Oct 18 2021
🚨︎ report
(Meter Reports: audio spectrum) Inside house the hum changed to a low pitch drill. Almost all low frequency sounds. Between 46.87 to 281.25 Hz. Interval is 11.72 hz.
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πŸ“…︎ Oct 14 2021
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What does changing the window size of an FFT over time do to the frequency spectrum?

Disclaimer: I'm not a DSP guy, just a hobbyist.

If I have a song and it play, and I anchor the left side of my window at t=0 and slide the right side of the window along with the playback bar I'll be doing an FFT from the start of the song to whatever time in the song I'm at. What happens to the frequency spectrum?

My intuition says all the previous frequencies stay on the spectrum analyzer and only new frequencies are added or the amplitudes that are already there increase. But now I'm second guessing myself. If there's a burst of 100Hz at the start of the song and there nowhere else in the song with 100Hz will 100Hz decrease over time since the time the 100Hz was playing makes up a smaller and smaller proportion of the song as time increases?

Which one of these two ideas is correct?

I'm trying to understand the the energy-time uncertainty principle from quantum mechanics in the context of the taking the FT over a long time equating to honing in on the spectral energy distribution. I feel like there's an elegant Fourier transform analogy here

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πŸ‘€︎ u/LemonLimeNinja
πŸ“…︎ Aug 15 2021
🚨︎ report
Soundspear "Kill The Top" 6-bands upwards/downwards compressor. Multiband compression divides the frequency spectrum into different bands to compress them individually ($9.99) until 14 September audioplugin.deals/kill-th…
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πŸ‘€︎ u/Batwaffel
πŸ“…︎ Aug 31 2021
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New quantum receiver the first to detect entire radio frequency spectrum phys-org.cdn.ampproject.o…
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πŸ‘€︎ u/bored_curator
πŸ“…︎ Feb 07 2021
🚨︎ report
BUSINESS MAVERICK 168: Radio frequency spectrum: Icasa is a threat to the economy, say mobile operators and industry players dailymaverick.co.za/artic…
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πŸ‘€︎ u/BalanceThis1
πŸ“…︎ Oct 04 2021
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Using an Frequency spectrum analyzer to adjust my car EQ
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πŸ‘€︎ u/epicmailman98
πŸ“…︎ Jun 18 2021
🚨︎ report
Truncating dB across the audio's frequency spectrum?

I don't know the terminology I'm looking for here, so I'll just describe what I'm looking for.

I got an audio file that has really harsh loudness for certain spans of frequency (like between 2.5 and 4.5KHz and a few other spots). You can see this in the frequency spectrum: Those areas trend brighter than the rest. What I'm looking for is the function that will take that frequency spectrum, figure out which frequencies are reaching above a certain level, and cut them down to a defined maximum. The invert of this process should produce only those frequencies, only at the points where they exceeded the defined max.

To be clear: Say on a scale from 0-9, the waveform at a certain point is "3" at 500Hz, "5" at 1K, "5" at 2K, "4" at 3K, "8" at 4K, "7" at 5K, "4" at 6K (3,5,5,4,8,7,4), and I tell the function "cap at 5", I want the end result to look like: 3,5,5,4,5,5,4. Like I'm clipping the dB.

A "compressor" such as in Audacity sounds like something approaching what I'm after, but it seems the real purpose of Audacity's compressor is to cut off peaks without clipping so one can squish extra loudness into the waveform. That's not my goal here. And notwithstanding my considerable trial and error, I can't get a good result out of it anyway.

Again, I'm probably just lacking the correct terminology.

What I'm not looking for: An EQ editor so I can manually tweak the waveform until I get the levels I want. Even if I really wanted to spend a whole day brute forcing the thing by hand, I already know that I can't get good results this way because I don't have perfect numbers to plug into any hypothetical graph, and more to the point, an EQ would lower the dB of frequencies across the boardβ€”i.e. a dB level already at 5 (or whatever) would be lowered to 4 (or whatever) even though 5 was the target dB.

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πŸ‘€︎ u/Skrillion78
πŸ“…︎ Jun 27 2021
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I made a song with 400 synth layers but the frequency spectrum isn't 100% filled yet. Do I need to add 400 more?
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πŸ‘€︎ u/Spotniq
πŸ“…︎ Mar 02 2021
🚨︎ report
The Crux of the issue is: #EVERYBODY will soon SEE, FEEL, and HEAR a wider spectrum of frequencies than what we feel now of up to 144,000Hz | #4Density - #FourthDensity FOURTH DENSITY | #PlasmaApocalypse

All of these express about just about the same...

#* #4Density #* FOURTH DENSITY γ€Žγƒ•γ‚©γƒΌγ‚Ήγƒ‡γƒ³γ‚»γ‚£γƒ†γ‚£γ€‘ #* #FourthDimension 【フォースディパンション】 #* #SUSUNOO πŸŒ…πŸ‡―πŸ‡΅ γ€γ‚Ήγ‚ΉγƒŽγ‚ͺ】 #* #PLasmaApocalypse γ€γƒ—γƒ©γ‚Ίγƒžγ‚’γƒγ‚«γƒͺプス】

They're all about the same thing or timing.

It's all about how when you hear 144,000Hz for the first time,

Your Sensory Oerception will EXPAND‼️
...dramatically❗️

Upon hearing it... Your senses will seek out the frequencies up to 144,00Hz.

A whole new world will open up and your cognitive ability will expand to faster higher level thought enabling the 4th Dimension to you.

The #PlasmaApocalypse causes the Mother🌎Earth to go into the #FourthDensity, that's when you'll hear the [hornsβ™ŸπŸ“―πŸŽΊ] call of the siren 🚨 [πŸ§œπŸ½β€β™€οΈπŸ§œπŸΌβ€β™€οΈπŸ§œπŸ»β€β™€οΈπŸ§œβ€β™€οΈ] of 144,000Hz...

Then you will see a new VIOLET SPECTRUM of our SUNβ˜€οΈπŸŒŸπŸŒžβ€ΌοΈ πŸŸͺπŸŸͺπŸŸͺ

...And you will know the TRUE meaning of what it means to become an #Israelite 🀴🏿🀴🏾🀴🏽🀴🏼🀴🏻🀴

* this applies to people of all races ion varying degrees.     

This information is the scandal of scandals, conspiracy of conspiracies, the secret of SECRETS.

This is the crux of what they've been hiding from us‼️

πŸ‘︎ 2
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πŸ‘€︎ u/westsan
πŸ“…︎ Sep 11 2021
🚨︎ report
Headphone Pro Tip: If you're experiencing overt deplaneration in the higher frequency range, try adding a translateral spectrum decoupler to your set up, it can greatly reduce subattenuation at lower decibels.

For years audiophiles have struggled with how to rectify their audio's deplaneration and subattenuation without introducing distal noise redundancy or unnecessary quavering into their sound's proattenuated frequency spectra.

The solution, as was recently discovered in a small cave in Japan, was introducing a translateral spectrum decoupler between the unipolar phase rectifiers and the wave guide amplification unit (If you have tripolar phase rectifiers you're out of luck), this resulted in a 37% reduction in deplaneration and a 27% increase in intraaural dopaminergic activity vis a vis improved neuronal interlocation and focal rectificance.

Please note that installing a translateral spectrum decoupler without initially flushing your frequency capacitors could result in full or partial scapular grinding, so make sure to wear untextured rubber gloves when you install it. (We don't want another Valikov incident, do we? LMAO! 🀣 But seriously, thoughts and prayers.)

Since I added a TSD to my setup I've noticed a marked drop in sinusoidal fault interrupts and much more transparent spectrum frequency saturation, I'd say the mod bumped my HD58X from a seven on the International Smithson/Marzle scale to at least a three, maybe even a two! Plus I haven't experienced side fumbling in months (I think it's due to the improved torsion distribution and remodulated volumizing capacitance.) To think some people spend thousands of dollars to address their headphone's deplaneration and subattenuation when all it took me was an afternoon and a gram of dichromium flux fluid, now Netflix has never sounded better!

Honestly it's a mod I think everyone should try, assuming you've got untextured rubber gloves.

Anyway, I hope this was helpful!

πŸ‘︎ 44
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πŸ‘€︎ u/MaximumEffort433
πŸ“…︎ Oct 09 2021
🚨︎ report

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