Ha just joking but interesting observed effect in a trial. Always wondered beyond standardization the drive towards 440Hz tuning. I bet there are positives in the recording industry not to mention equipment design and manufacture.
interesting read here.
https://pubmed.ncbi.nlm.nih.gov/31031095/
interesting read here.
https://pubmed.ncbi.nlm.nih.gov/31031095/
At the same time, we don't hear absolute pitch (with the exception of a few Wunderkinder). What would be the meachanism, i.e. what is the biological reference clock here?
Quite interesting given the fact that the difference between 432 Hz and 440 Hz is not even a quartertone !
Regards
Charles
Regards
Charles
Their second study gave similar results https://pubmed.ncbi.nlm.nih.gov/33263352/
Method: 12 patients with spinal injuries were provided with mp3 players loaded with their favourite music tuned to 440 Hz or 432 Hz. They were invited to listen to music for 30 minutes each day, in the two periods of the study. "Sleep Scale for Medical Study" modified for this study, and the "Perceived Stress Scale" were chosen.
But I must ask how was the MP3 "detuned"? Was tempo lower in 432 tuned music?
Method: 12 patients with spinal injuries were provided with mp3 players loaded with their favourite music tuned to 440 Hz or 432 Hz. They were invited to listen to music for 30 minutes each day, in the two periods of the study. "Sleep Scale for Medical Study" modified for this study, and the "Perceived Stress Scale" were chosen.
But I must ask how was the MP3 "detuned"? Was tempo lower in 432 tuned music?
Indeed! Not even a 2% frequency difference - and we're supposed to believe it produces dramatic biological effects?
2% is about one-third of a semitone, and a simple change in room temperature is enough to detune a guitar by that much. Moving a guitar from a hot car interior to a cool performance room in summer, or from a cold car in winter into a heated home, often detunes it by that amount or more.
I don't play any wind instruments, but I've heard flutes shift tuning as a room warmed up or cooled down, so I did a quick calculation. It takes only a 10 degree (Celsius) change to cause a 2% tuning change in a wind instrument. Are we to believe that people listening to live flute music on a cold day experience something dramatically different than the same flute on a hot day (frequencies go up on hot days)?
Getting to the core of it: did anyone else notice that there were only 33 subjects in the study? And only two music sessions? And the 432 Hz tests were done on a different day than the 440 Hz study?
Thirty-three subjects is too small a sample to give good statistical results. Two music sessions is far too few, for the same reason. Doing the tests on two different days makes it very likely that other external factors were involved in the observed results; for example, I've noticed that traffic in my area is always noticeably lighter on Tuesdays. If you did a random blood-pressure test on two hundred subjects at 9:10 AM every weekday, I have no doubt you'd find lower average blood pressure on Tuesday mornings, because traffic was lighter and the drive to work was less stressful.
Put all this together, and I think we can safely dismiss this particular piece of "research". IMO it's not worth the paper it's printed on. Not worth the bandwidth needed to display it on your screen. It's simply a case of confirmation bias, where the "researchers" came to a conclusion that supported their pre-existing beliefs.
-Gnobuddy
The wind band or orchestra tunes the ensemble frequently during outdoor concerts to avoid temperature or sun driven tuning shifts.
I played an instrument where every note was somewhat out of tune, a cheap ($340) bassoon made in D.R.Ger. I tuned to C when the band director was broadcasting that, then tuned every other note individually with my mouth tension. There is a reason the orchestra tunes to the oboe. Pro level double reed players tune with their ear: the instrument is unreliable in tuning. No, I don't have absolute pitch. But my relative pitch was good enough to get me to TxMusEdAssn All-state band my senior year. One guy that beat me (2nd chair, I was 5th) had a $400 bocal and a $3000 bassoon.
The only frequency to produce a biological effect, as far as I know, is 17.25 HZ.
It is the flicker frequency of a candle flame and if the human body is exposed to it at high power will cause a bowel movement!
Quite amusing to some.
It is the flicker frequency of a candle flame and if the human body is exposed to it at high power will cause a bowel movement!
Quite amusing to some.
In DAW or with a VST plugin you can change the tuning of each track or even song without chenging the tempo.
With some plugins like melodyne you can even change the tune of a single note in a recording.
its 2022. everything is possible.
https://professionalcomposers.com/best-pitch-shifter-vst-plugins/
Changing the playback speed should be easy as long as you have the uncompressed PCM. I wouldn't put it beyond an MP3 codec to lump 432 and 440 Hz into the same bin, though.
I haven't done extensive tests but there are some comparative demos on YT which you can listen to. I find the lower frequency to have a surprisingly calming effect.
Yes, you can take a person like Taylor Swift (who cannot sing on pitch), and make her pitch-perfect on her recordings. 😀
Here's what Taylor Swift sounds like without pitch correction (make sure to wait for the chorus at 34 seconds):
And another example (jump to 1:30 to hear Swift trying to swing in her weak, wavery voice):
Why is it that everyone got angry when Lance Armstrong cheated, but nobody minds when Taylor Swift (and countless other singers) cheat?
-Gnobuddy
True, but it will introduce all sorts of artefacts that may influence the subjective perception. Maybe even pleasing harmonics that will reduce heartbeat ...
I admit i am not sure whether we can hear any difference.
Many guitarists use a capo, a device which raises the pitch of every open-string note on the guitar.
So why doesn't everybody get calm if the capo is slid down one fret (lowering all frequencies by about 6%)?
-Gnobuddy
Awesome! 🙂
At one jam I used to go to in the Los Angeles area, two friends frequently performed as a duo, one on flute, the other on acoustic guitar.
Normally that's a combination of sounds I really love - but these guys often had terrible tuning problems. The guitar player always tuned his instrument with a digital tuner set to exactly 440 Hz. But the flute tuned itself based on the room temperature that night.
Unfortunately, the two tunings never matched! 😀
I don't know why the guitar player didn't simply tune to his friend's flute. Maybe he didn't know how to tune by ear, only with a digital tuner clipped to his guitar? 🤷
-Gnobuddy