restorer-john
Grand Contributor
Oh, I've never tried it.
But I saw some people do it once at Burning Man.
Licking frozen toads? We have heaps of them here- Cane Toads (Bufo Marinus)
Oh, I've never tried it.
But I saw some people do it once at Burning Man.
Licking frozen toads? We have heaps of them here- Cane Toads (Bufo Marinus)
Cane Toads produce the hallucinogen Bufotenon.
https://www.sbs.com.au/news/thefeed...-are-using-cane-toads-get-hallucinogenic-high
Isn't that what Clinton said?Oh, I've never tried it.
But I saw some people do it once at Burning Man.
Ah, another expert. LOLCane Toads produce the hallucinogen Bufotenon.
https://www.sbs.com.au/news/thefeed...-are-using-cane-toads-get-hallucinogenic-high
I conducted the most simple experiment possible, using Audacity for tone generation and level adjustment and my trusty Sennheiser HD580 headphones connected to a Terratec Aureon Sky soundcard for listening. As expected, a 440 Hz tone's 2nd harmonic at -40 dB was detectable but by no means strong, only giving the signal some "grit". It was definitely gone 20 dB below this level. 3rd, easily detected at -40 dB, had also gone by -60 dB. So far, it seems I'm a slightly worse "distortion listener" than the people on those studies, which does not surprise me.
Now the higher ones: 5th was just barely audible at -60 dB, as was 6th. 7th and 8th were still audible at -70 dB, requiring fairly high listening volume already (fundamental amplitude 0.8, Prodigy 7.1 driver main volume 43%, headphone channel gain -6 dB).
I've also done this test differently, last year: crank up the volume till pretty high level (I've used a 440Hz and 1KHz sinewaves to adjust the level to my ears), then played different frequencies at different levels (usually 440Hz or 1KHz at levels below -70dB). Below -80dB was very hard to pick up something and below -85dB it was almost impossible, and this test was done with perfect sinewaves (no harmonics added) playing at very low levels, so without masking. However, below -90dB I couldn't pick up anything, no matter what headphones I've used. Probably increasing the volume to the absolute max. supportable limit of my ears will improve the dynamic a little bit more and I might pick up -90dB or even -92dB levels, but not sure if it's worth...and it's not fair, because I'm not listening to such insane "absolute max. supportable limit of my ears" anyway.
Not quite the same thing. I had a few test files in a thread on noise floors once. (I don't think those files are up for download currently). I put noise into a clean file at various levels and asked everyone to say when it was inaudible. I asked they start with enough noise they heard it clearly. This while listening to music at their normal levels. Most results were -75 to -80 db for most who responded if my memory isn't shot.I'm aware of that, thank you very much for sharing this info; this also explains why I couldn't pick up 2nd and 3rd harmonics @-60dB, but I could get the 7th harmonic. However, I've started listening at moderate level for the first few minutes, then increased to higher levels (about 90dB), so I can pick up the harmonics in both circumstances.
I've also done this test differently, last year: crank up the volume till pretty high level (I've used a 440Hz and 1KHz sinewaves to adjust the level to my ears), then played different frequencies at different levels (usually 440Hz or 1KHz at levels below -70dB). Below -80dB was very hard to pick up something and below -85dB it was almost impossible, and this test was done with perfect sinewaves (no harmonics added) playing at very low levels, so without masking. However, below -90dB I couldn't pick up anything, no matter what headphones I've used. Probably increasing the volume to the absolute max. supportable limit of my ears will improve the dynamic a little bit more and I might pick up -90dB or even -92dB levels, but not sure if it's worth...and it's not fair, because I'm not listening to such insane "absolute max. supportable limit of my ears" anyway.
Test sinewaves I got them from audiocheck website, but there're lot of trusted website to find those sines anyway.
If anyone else can take a similar test, would be great to share the experience. Who knows, maybe there's a "golden ear" hidden somewhere inside this forum that might pick up even -100dB.
At what sort of average music levels would this have been? -10, -14, -20 dBFS? Or would these -75 to -80 dB already have been the delta between signal and noise? Seems a bit high to me then.I had a few test files in a thread on noise floors once. (I don't think those files are up for download currently). I put noise into a clean file at various levels and asked everyone to say when it was inaudible. I asked they start with enough noise they heard it clearly. This while listening to music at their normal levels. Most results were -75 to -80 db for most who responded if my memory isn't shot.
Well my memory wasn't perfect, but you can read about the files in the thread.At what sort of average music levels would this have been? -10, -14, -20 dBFS? Or would these -75 to -80 dB already have been the delta between signal and noise? Seems a bit high to me then.
My impression is more can we trust/rely on our knowledge/experience how an instrument or a voice must sound than our ears (in the first place)...
Tried this for myself now. I picked a track at -13/14 dBFS average, -0.8 dB peak, relatively undynamic. Added white noise at -24, -34, -44, -54, -59, -64, .. -84 dBFS. Everything down to -59 dBFS was easily audible, beyond that it gets harder and harder. I can still just about pick up -69 on the fadeout, but that's about it. I should try again with -74 once the party next door is over, but right now it looks like this isn't happening at my normal levels without sticking my ear to the tweeter. So the old rule of thumb of 70 dB of required dynamic range actually seems to be pretty much spot on for me.Well my memory wasn't perfect, but you can read about the files in the thread.
https://www.audiosciencereview.com/...hat-level-is-noise-heard-in-your-system.1013/
The levels were dbFS.