#audio spectrogram

[graphicnoises]

Wheezy/whistly laughter is so cool looking on spectrogram.

[neverendingnigthmare-blog]

Welcome home vinyl restoration

Ok so, in the merchandise page there is this horribly damaged vinyl that plays in a video, and I thought there was probably something behind it and so i tried restoring it and i got to this point.

My guess to what this says is:

<unkown person, perhaps Alex> :"Someone's there [humming in tune] on a summer's day!"

[moment of pause]

<unkown person 2> :"Alex (?) numbers (?) are falling DOWN, DOWN, DOWN!"

<sounds like Julie here> :"Oh jeez! I'm gonna fetch the tomatoes" [kinda out of place but that's what it sounds and we know Frank and Julie were growing tomatoes in the yard, so something with that?]

If we follow the numbers given on the page these vinyls are from 1970 to 1972, and we are assuming by what is said in the main page welcome home was pulled from television in 1974, so perhaps the "numbers are falling down" is referring to the show loosing viewers?

This is the original audio i managed to get, inc ase you wanna try your hand at recovering it too.

Sorry if both these audios are kinda weird I did them in VLC media player.

Another interesting thing about this audio is the spectrogram, which has some weird artifacts

Now some of these are normal, for example:

^ This bands are where the character's voices are, and all the different stripes one over the other are the notes at which they talk or sing at and their resonant frequencies.

This on the other hand is the part between 20khz and 5khz, which is mainly static and a weird non repeating humming. This makes me think that these weird signs actually mean something, maybe morse, or maybe something else completely.

I invite you to try download the audio and look at the spectrogram yourself, to try and see what you get.

Also tell me what you hear in the restored audio! who know maybe you have better ideas than mine.

Until next time, don't forget to wave up high!

[aefensteorrra]

got my acoustic model training on Thursday, it finished in the early hours of this morning and this afternoon I got audio output!! it synthesises!!!

[translator-anon]

68 74 74 70 73 3A 2F 2F 63 6F 6C 6C 69 73 69 6F 6E 77 72 61 69 74 68 2E 74 75 6D 62 6C 72 2E 63 6F 6D 2F 70 72 69 76 61 74 65 2F 37 36 37 39 35 33 37 31 30 30 30 38 37 31 33 32 31 36 2F 74 75 6D 62 6C 72 5F 78 67 71 30 54 69 32 64 31 31 4D 78 42 54 4F 6E 4E

beepbox link here, process under the cut again!

ascii → tumblr link (ascii) → file garden link "VAGRANTPASSINGSIGNALOFAGESPAST" → morse code → ascii → file garden link "SPECTROVISUAL" → spectrogram → tinyurl link → beepbox

[pansy-out-of-the-wardrobe]

Studying for a test and all of a sudden my fanfic wips and books on my shelf are looking mighty appealing

[waste-of-bandwidth]

I've been playing around with spectrograms

[spectrogramforums]

hi im 20 & idc what u call me tbh. take your pick (neopronouns are just to give an idea of what i like it's not comphrensive by any means)

reblogs > likes. i like seeing people ramble in my tags

> spectrodoodles - doodles

> spectrograms - finished pieces

[graphicnoises]

If you've ever wondered how those automatic audio-to-(bad)-sheet-music programs work this is a good chunk of the kind of stuff that goes on in the back end.

Each of these flat lines is long enough to be easily and accurately identified as a specific frequency and duration. Looking at the axes and cross-referencing with Wikipedia, we can quickly identify that faint line that's constant up across the rest as C6 (1046Hz), the lowest line as C2 (65Hz), and strong lines at 98 and 198Hz, which are G2 and G3 respectively. That's a solid indication, absent any other information on the song itself, that it's set in C.

However, we have additional information in this graph. Note the time axis in seconds across the bottom. This could enable a particularly diligent investigator (or, more likely, a program) to track the points in time when notes begin and end, and attempt to calculate common denominators that predict those notes. In this case, a researcher with particular time to kill could mark the individual duration of every single note, and use the running GCD as a point estimate of base note length from which to calculate an estimate of the BPM.

If you want to get an idea on how Fourier Transforms themselves (and by extension, the FFT algorithm) work, I'd recommend looking up a 3Blue1Brown video on them, their work is very good.

Song: Beekeper - Keaton Henson (Spotify)

[1nk20ul]

Jonathan Sims ALIVE?? I Believe I Have Proof.

(Spoilers for The Magnus Protocol!)

You heard that right. And if you've listened to TMP 39 - Dependents, you've heard it too. Not only can I prove without the shadow of a doubt that not one, but two Archivists are roaming TMA's London, but I can also prove with spectrogram + phonetical analysis exactly what Jon is saying.

Let me prove it to you.

First, let's start with an unedited audio sample, taken at 16:30:

Did you catch it? If you didn't, I don't blame you. There's a lot happening here. Let's check the official transcript for more context about what we're hearing.

So, what we're hearing is definitely the Archivist. It's evident that it's whispering something, but the specifics are currently hidden under layers of reverb, static, and tape winding. Let's clean it up a bit to get a better listen. I pitched the audio down 30%, reduced the background noise, and ran it through a few frequency filters to make the speech more prominent.

Oh.

Oh, shit.

Yeah, that's definitely Jon.

At the very least, we know this is obviously not Beth Eyre, who voices [ERROR]. Since the transcript states that this audio has to come from an Archivist, that really only leaves us with one other possibility.

But let's assume you still don't believe me. I took the liberty of isolating the vocals entirely and running them through a linguistics analysis programme called Praat (which is fantastic + free by the way!). This way, we can analyse the speech all the way down to the position of the Archivist's mouth when speaking.

Here's the new sample we're working with:

I admit, the speech is a tad more muffled in this version. However, the lack of background noise makes the spectrogram much easier to read, which is what we are aiming for here. We're far past the point of just using our ears.

Behold the Spectrogram:

Looking at this diagram, we can conclude that there are four words being spoken here. (The second word is the gap in the middle part. Note the density shift at around 1000Hz. We know this word must be free of any sharp consonants.) More importantly, the formants provided can be compared to samples of Jon's RP dialect to determine if there's a match. If the frequencies match, it's the same voice. If we get the wavelengths to match, it's the same word.

Let's start with the first word. I'll skip the specifics, as explaining every minute detail would take forever and bore everyone to death. The left image was extracted from the spectrogram above. The right photo? That's Jon saying the word "this."

Note how both waveforms are split into two halves, low then high. Note how the high half trails off at the end. Take into account the similar placement of the red formants. This is the same word, pronounced in the exact same dialect, with the exact same frequency. It is Jon.

Let's do that again with the second word.

Again, the formants line up in the exact same order. The audio on the right is a bit louder, which is why the waveforms have a higher contrast.

What did this word happen to be? World.

Here is the original spectrogram in Audacity. The two bright spots on the right-hand side are easy. It's the same sound as the end of the first word as well. (Notice the frequencies are the same.) These are an easy Letter S. I then fact-checked this using methods like before.

Finally, we have clear, undeniable proof:

"This world isn’t yours."

Edit: thank you to @thestrangepoet for correcting “is” to “isn’t!” The presence of the letter T was a bit inconclusive, but it makes so much more sense in this context.

Now, what does that actually mean? Well, he’s likely referring to Sam. The extent of what he actually knows I’m uncertain of. Feel free to theorise and let me know! I have an idea about how this affects the overall story, but that's a post for another day.

I furthermore checked every single instance [ERROR] spoke for occurrences like this, and what did I find? Nothing. There was a bit of whispering in TMP 10 that I couldn't manage to isolate, but the voice was definitely Beth Eyre's. The only other time an Archivist audibly appeared in this fashion was... Oh, Hello. The TMP series teaser with Jon and Martin. Brilliant.

Now I just have to hope that nothing gets debunked by tomorrow. I'm crossing my fingers, TMP 40.

Thank you to Rusty Quill for sending me down this rabbit hole! The details added to all corners of the production bring so much life to the Magnus mystery. I'm glad I could dig deep and analyse this - We love you!

[diamonddeputy]

Okay I put this together for a buddy who couldn’t make it so I may as well put it here too now that I have it all in one place

All the dev commentary I picked up from the UTY anniversary stream

PLEASE REBLOG WITH ANYTHING I MAY HAVE MISSED

• It apparently took them FOREVER to solidify a design for Decibat. One of the early concepts was a literal baseball bat with wings and I enjoy this fact very much

• They originally had an idea that Dalv would accidentally try and move into Martlet’s house after leaving the Ruins LMAO

• They expanded on this piece of concept art that had been floating around: there were never really plans for the Feisty Five to be evil, they just made their own wanted posters to inflate their own egos LOL

• I didn’t really write any of the specifics down, but listening to them talk about the Flowey fight was so interesting because they were all chiming in about who worked on what parts and where the inspirations were from and where they sourced their materials. Some details I remember off the top of my head:

- Flowey’s voice lines were pulled from the same McDonald’s commercial as his canon ones

- The audio for the scene where Martlet melts before Meta Flowey was a combination of a stock laugh and a clip one of the devs just so happened to have, when they used to edit for a YouTube channel, and the file got corrupted and just randomly made that sound

- The heartbeat monitor sound that plays during the Organic speciman is taken from the frequency of an actual human heart. Don’t remember the story about how they acquired that one

- The graphics for the Polygonal speciman were inspired by PS1 horror, Ben Drowned and that meme that went around in the late 2010s of a gif of a bug that made it look like a bug was on your screen (in specific reference to the little Flowey gremlins that crawl down the screen)

- They originally had plans to include a spectrogram in the fight, but decided it would make them seem too tryhardy

• There were plans for an underwater segment that were scrapped extremely early in development, something about a bridge in Waterfall breaking

• The comment Starlo makes in the Wild East about there being a fourth mission that was scrapped from the regimen is a reference to a literal fourth mission that the devs cut because they felt like it killed the pacing, where Virgil would kidnap the Feisty Five and tie them up in places around town and you had to go rescue them and it was a stealth game type thing

• - The designs for the Feisty Five have a lot of funny inspirations

- Ed was originally designed to be a normal monster, but they liked his design so much they used it for something more important

- Initial concepts of Moray’s design had them in a fisherman’s cap or a paper boat hat, to show how unserious they were about this. Also, they weren’t originally designed to be Angie and Gillbert’s child, a playtester just made that assumption and they were like y’know what sure we’ll roll with it

- Mooch’s design originated from a Minecraft RP OC that one of the devs had that she never got to use. Which is iconic tbh

• Mo was inspired by this lil dude, who showed up and had babies in one of the devs’ attic. Additionally, while coding the game, there were little variables they put in for fun like a timer. One of them was a number that just incrementally increased, and was labelled “Crimes that Mo has committed”

• The fact that sparing Dalv doesn’t abort Geno, that everyone chalked up to being a genius narrative decision, was AN OVERSIGHT??????? It was a coding error caused by the fact that they were initially gonna make everything that happens in the Dark Ruins not count towards any route, like Flowey implies in his dialogue, but they went back on that decision and fixed it for everyone except Dalv. They made a comment on stream like “we should really fix that” and everyone in chat was like PLEASE don’t LOL

• There were never really concepts for a Geno Starlo fight. And a lot of it is the reasons the fandom talks about that he’s a coward before his character development and it makes more sense for him to back out in the face of real danger. But also because in terms of power level, it didn’t make sense for him to stand a chance. And also because they were making all the routes at once and designing the boss fights at equal times and this was the first chance they got to make a boss fight for Ceroba LOL. But the plan was already set by that point that it was gonna be her instead of him

• No one truly knows the origins of the super faded silhouette standing in the background of the UG Apartments shop in Geno. Apparently the dude who made the CG just. Put it there

• We got more insight into the Martlet transformation animation. It was made with SO much purpose. If you look closely, she starts to melt and the determination puddles underneath her, but then she gains control of it and the puddle ABSORBS BACK INTO HER, then shoots out in a burst when her first wing transforms. THAT’S SO COOL

• Additionally, they also canonized that Martlet took the determination before Alphys had any of the fallen-down bodies, and that she had no idea what it actually WAS, other than that it had something to do with the human SOULs. Which makes this even MORE impressive because she wasn’t intrinsically prepared to control determination, she just DID it

• Additionally, they also canonized that Martlet took the determination before Alphys had any of the fallen-down bodies, and that she had no idea what it actually WAS, other than that it had something to do with the human SOULs. Which makes this even MORE impressive because she wasn’t intrinsically prepared to control determination, she just DID it

• The dive-bomb attack Martlet does in her first-phase Zenith fight was inspired by Dyna Blade, as a Kirby fan that fact just made me happy lol

• Retribution was the last song made for the game, and was composed in just a couple days, which is WILD to me

• We got confirmation that Flowey is still in control of saves after defeating Axis in Geno, and Clover’s text in the overworld/after dying is just them being so focused on their mission that they’re drowning out everything else

• CANNOT forget The Jincident

[fynchfire]

Okay so I've been trying to figure out more on the Life series teaser decode it, if you will, and I think I may have found something. I put the audio of it through a spectrogram and it kind of looked like letters. I'm gonna try it slowed down a bit, or reverse the audio, or something... Basically just continue to tinker with it.

I'll give updates if I find anything else :)

[mountrainiernps]

National Park Week

The original soundtracks of the world are the “nature songs” all around us! Also known as soundscapes, they are the audio equivalent of a landscape. Natural soundscapes can include everything from animal and bird sounds to rushing water, wind through vegetation, glacial crevassing, to thermal or volcanic activity. Birds, animals, and insects use sound to communicate, establish territory, find prey, avoid predators, connect with mates, and care for young.

What does Mount Rainier sound like? Listen to short soundscape recordings from around the park at https://go.nps.gov/MountRainierSoundscapes Sounds occur in different frequencies and are represented visually using a spectrogram, an image that incorporates frequency (y axis), time (x axis), and amplitude (brightness of color). This spectrogram represents audio recorded near Kautz Creek in 2017 of male and female Barred owls. NPS Video.

[genuflectx]

Someone ought to tell all the rad Murder Drone artists whose art is used on the Church of Null thumbnails/slideshows that their art is, without permission, being associated with AI generated songs (and that the person is just lying about it being AI)

All the art is yoinked from Twitter which I don’t have anymore 😭 but the credits are on the video descriptions 🙏

Edit: Adding the evidence below the cut; the songs and Electrical Ink fail 3 different tests, which point towards high likelihood of AI usage

#1 - Using SubmitHub's AI song checker, first testing accuracy of checker. Claims 90% accuracy, did own test with 10 human and 10 AI. About the same accuracy on both at 60%, with remaining percentage usually "inconclusive" with a smaller percentage of inaccuracy (10% in the human test, 20% in AI test but only for Udio). Caveat: Udio throws it off, every Udio song tested was inconclusive or incorrect, however I noted a mix of human and AI tells still reported in the Udio breakdowns. Therefore, this checker is reasonably accurate at marking AI as AI and is more likely to say something is inconclusive than to mark it incorrectly, but should not be the only tool used to assess.

Sampling every other Church of Null song (testing with full MP3s), SubmitHub's checker identified 10 of 12 songs as strongly AI and the remaining 2 as inconclusive. This is a higher rate of being marked as AI than either the human or AI tests I did beforehand. If it were human there would be some marked human, if it were Udio AI it would more likely show a mix of human and inconclusive. All AI and two inconclusive is more likely Suno AI.

#2 - Using my manual spectrogram contrast test, first testing on 23 respondents. Results are in the link, with 65% of respondents getting a score of over half correctly assessed. This test becomes more accurate when used by an individual practiced in it (comparing an unlabeled spectrogram to a chart of AI and human spectrograms, then sorting it onto either side accordingly by which pattern it most closely resembles). My own score was 12/14. This test will never be 100% accurate as not every spectrogram follows the pattern; i.e. rarely, an AI song has the spectrogram appearance as a human made one.

Respondents were mixed on whether a sampling of 6 songs from Church of Null were AI or human at the end of the test, with both high scoring and low scoring assessing them about the same, with only a slightly higher rate of being assessed as AI in high scoring testers. Only one lower scoring tester assessed AI under 50%, assessing two of six as AI (33%). However, nobody assessed the set as being all human. Note, psychology may have made this set difficult, as respondents may have believed it was unlikely that a set would be all AI or all human, which would influence answers.

When I originally assessed the six spectrograms, I assessed all of them as appearing closer to AI generated spectrograms than human, using the reference charts. I am very practiced at spectrogram contrast assessment since I am the one who made these charts and tests, sampling 30+ AI and 30+ human.

#3 - Using a smell test, or suspicious tells that just make you feel like something is off with the vibes. This can be lack of credits/suspicious credits, an AI "shimmer" effect on all the audio, generic lyrics that sound AI generated/edited, a music production output that is unrealistic for hand-made music, etc.

In Church of Null's case, it's creator Electrical Ink: shows no musical production on the channel before CoN, claims to have 6 anon helpers/vocalists but only credits a weird blank "creative consulting" channel, has produced 25 beautiful songs with complex compositions and vocals in 4 months while claiming to record these in person (and simultaneously writing 62k+ words of the fanfic, or about 15k a month), includes the robotic "shimmer" present in Suno AI while claiming it's "autotune," deletes comments asking if it's Suno (happened to me), and uses art before asking permission for the thumbnails and lyric videos.

The one other credit I found under a reply to a random comment is E-LIVE-YT (a "collaborator" on one song, however E-LIVE may have exaggerated this as they couldn’t even remember Electrical Ink’s name during a livestream), a real person who uploaded at least 1 AI generated song (admitted) but claims the rest are human made. Though, they also produce music at an unrealistic rate (43 tracks in 5 months) but mostly "extensions" of existing music, something AI song generators let you do (he uses Bandlab, which has AI tools exactly for that). The ones with lyrics have Suno's "shimmer" and the lyrical breakdown that E-LIVE posts on comments read as AI summaries/analysis (right down to calling N "they," not knowing his pronoun; a shortcut to chatGPT was on their desktop during a livestream, they removed this for later streams). Additionally, E-LIVE also has strange credits to blank channels and 1 or 2 tiny channels that just upload poor quality Roblox clips.

Ironically, even this "fan" "collaborator" believes Church of Null is AI and complains about competing with it, and regular Suno AI users in the Suno Discord believe so too.

Sniff sniff.... somethin smells funny...

[serenaew]

Antici-------pation!!!

Here a scrollshot of all the audio parts I received so far:

If you want to participate, NOW is the last chance to let me know!!!

Calling for voices!

As I may have said in Sept, I wrote an a cappella Christmas mashup of

Once Upon a December x Chim Chimenee x In Noctem

and now that it has a name, the

Embers and Soot Choir is looking for people!

Here all the information I think might be relevant:

•    Organiser, arranger/composer and editor of this project is @serenaew (discord, tumblr, LJ, DW).

•    I'm looking for voices of all types and ranges. Your being comfortable singing and a quiet room are the only requirements; no sheet-reading abilities or musical training or specialist equipment or setup needed.

•    File hub with sheet music and audio guides (including both me and midi): https://drive.google.com/drive/folders/1q9kecvDmVmxIEsBmApr5sME1iZgMxqOl?ths=true

•    Please read the FAQ in this document: https://docs.google.com/document/d/1nH9srsW8V5L0eYWatxAujytI_jVtJGkrgVoSzd1U1Qk/edit (docs sheet with part details and FAQ) and,

•   when you’re ready, let me know and I'll sign you up with your name, how you want to be credited, and your parts.

->   Please give me as many voices as you want, even if there are already others wanting to do the solo(s); I'm pretty sure I'm going to create multiple solo groups when editing.

->   If you do take a part that has different ranges for different versions, please specify which version(s) you’re doing the audio for.

•    Spotify playlist with the three original songs: https://open.spotify.com/playlist/589nKQZvCyurcB1hD0FaT4?si=9d421f63e72942f4

•    Recordings should, if you deem it necessary, have noise reduction, but no other effects, and no clipping. I'll deal with volume and mixing and stuff (including compression and the like).

•    Deadlines: Dec 1, 2023 (for HoggyWartyXmas: https://hoggywartyxmas.livejournal.com/155612.html); otherwise Dec 15th, 2023

•    Please let me know if you want me to add you to a Discord group DM.

And please let me know if I forgot anything, or if you have any questions!

Thank you for your interest, and please share!

[text-post-rants]

It has been two years of listening to sleep token and I am still obsessed with vessel’s wacky mouth sounds. He does things with his breath, his vowels and consonants that are so deliberate that I can’t help but obsess over. Sometimes I get fixated on the fact that somewhere there are extremely high quality audio files of his vocals and yet I can’t have them. I want to run them through my software and analyze the sound waves. But instead I play vocals only YouTube videos into my computer. What good is a M.A. in speech and hearing science if I can’t get the high quality spectrograms I want. Will Ramos’s larynx is not enough for the SLP’s who like metal community. I will never be satisfied.

(This is a joke obviously. I listened to caramel. I’m not entitled to audio files. I just crave knowledge. But I respect boundaries and am happy with the amount I am given. I’m trying to say I like the new album and am going to tunnel vision on phonemes again. While also shouting out Will Ramos for participating in a YouTube video where he had a laryngoscopy)