UPDATES: 1) 3 KHz vs. 3.15 KHz represent two standards - Japanese Industry Standard (JIS) and Deutsches Institut für Normung (DIN), respectively (Thanks to Rand Grey on Patreon for pointing this out). 2) After reading the manual it appears I may be pressing the Zero button unnecessary - however since it doesn't affect the results in any way, it's irrelevant.
@dixie_rekd9601
6 жыл бұрын
@Techmoan Dear techmoan, please explain to all of the young people in the world why STEREO sound is not a "new fantastic thing" there's a fad recently of young people "reacting" to what they call "3d music" which is in effect just stereo music with a filter to simulate front vs back separation. I think theyre amazed by this because often younger people dont take the time to appreciate music as the older generations do. Stereo separation is most often a fairly subtle effect and seems to have faded into obscurity despite still being as prevalent as ever. Please make them see sense and stop overreacting to something that's been around for nearly a full century.
@JacGoudsmit
6 жыл бұрын
I remember from my EE study (which I had to give up after a year) that the 3.15 kHz frequency is important because it's approximately 1000 times Pi Hertz. In filter calculations with complex numbers that I don't remember details about, that neatly eliminates a frequency-divided-by-Pi term.
@sergiu1624
6 жыл бұрын
tarstarkusz Yes, you can, very good idea! And if it's direct drive and closed loop dual capstan even better. I'll try on mine also :)
@lawrencedoliveiro9104
6 жыл бұрын
Jac Goudsmit← Interesting, but given how easy it is to add another factor to an expression in a computer program, I don’t see why it’s a big deal. Why not 3.14kHz, in that case?
@MarioManTV
6 жыл бұрын
AwesomeVindicator Has stereo historically had simulated surround before the digital days? I guess it would've been possible using a stereo mic with sculpted ears, but I'm not familiar with such a setup in the analog age. It might be interesting to discuss some of the first audio sources to use this trick.
@bedast
6 жыл бұрын
Was chilling with my dog watching this. As soon as the 3khz tone played, he left the room in a hurry.
@jamescarter3196
5 жыл бұрын
He said 'wow' and fluttered
@10713412
5 жыл бұрын
James Carter 😂
@MohammedMuaawia
6 жыл бұрын
_"Quick extra video"_ * 18 minutes long * This is why I love this channel
@johnbrown2273
6 жыл бұрын
Juan Fonseca millennial
@ItsaDaPope-a
6 жыл бұрын
@@alerey4363 you tell em
@DreitTheDarkDragon
6 жыл бұрын
Techmoan is becoming EEVblog
@ciprianwinerElectronicManiac
6 жыл бұрын
No one cares! If you came on this video just to express your hate for the analog then you sir are an idiot :)
@MohammedMuaawia
6 жыл бұрын
@Zero Cool I like it because he manages to churn out such high quality videos so consistently and because he manages to make them so long.
@Stuartrusty
6 жыл бұрын
Ahhh, this is brilliant. Having been in electronic testing nearly 30 years, I have used many of the Philips PM series test equipment, which also included a function generator (sinewave, squarewave and triangularwave at various frequencies and voltages), bench multimeters and the suchlike. I knew that they made audio test equipment as well, but have not seen any until now. As a audio enthusiast like yourself, and someone who still repairs old audio kit from time to time, this is cool to see. Typically Philips of the era, simple, understated design and easy to use functionality in a compact case. Wonderful! ☺️
@amnottabs
6 жыл бұрын
gotta love how Mat just put together this video so he can point at it whenever someone asks about it in an upcoming video
@r5LgxTbQ
6 жыл бұрын
it's friday night and I'm sitting here in my underwear eating an ice cream sandwich and watching a video about wow & flutter meters
@matambale
6 жыл бұрын
Well, now you're just bragging.
@MeatyController
6 жыл бұрын
Keep it classy
@EggBastion
6 жыл бұрын
Good for you champ d(>_・ )グッ!
@PhilipvanderMatten
6 жыл бұрын
Too much detail
@matthewrose7964
6 жыл бұрын
Living the dream! :P
@stevenjames7082
6 жыл бұрын
Just want to take this moment to thank you for all your content , I stumbled across your channel a while back now and genuinely enjoy every video you upload !
@willyarma_uk
6 жыл бұрын
A bit off topic but I had an idea a while back to record music to the left channel and a steady tone to the right on a tape in order to correct wow and flutter on playback (with software) I never got around to trying it though. I have however written software to track the frequency, phase and amplitude of a sine wave which I used in a software defined radio project. If you measure the amplitude at 3KHz and also measure 90 degrees out of phase, it makes a quadrature detector, plot it on a constellation diagram (X,Y plot) the angle is phase and the size/radius is amplitude. and if its moving in a circle your frequency is off. The data can be used in a phase locked loop to perform the correction.
@markm0000
6 жыл бұрын
I would lay over a high frequency on both channels that is inaudible. When recording make sure that frequency is blocked from the source audio. That way you get stereo playback and constant correction. I can see this being an evolution to Dolby noise reduction.
@SeanBZA
6 жыл бұрын
Mark M Problem is that you will find it hard to record to tape anything that is inaudible. 16kHz is about the highest on compact cassette, as that way you do not get any beats from the erase oscillator, and in any case, the speed is so low that it will self erase in the record head. Going to a faster tape speed will work, but in that case you probably have a much better drive mechanism anyway, and can then use all 4 tracks to get an I and Q signal as reference anyway to do the DSP, and effectively remove the wow, but it probably will still have flutter. Only way to get really low levels is to go digital, and if you use tape then simply use DAT.
@willyarma_uk
6 жыл бұрын
There are lots of ways to encode things, I find it fascinating all the different ways things can be encoded. You could AM modulate a left - right difference and layer it as a subcarrier like FM radio or composite video. You could AM modulate left and right as is and use the carriers as wow and flutter tracking. You could even use QAM to encode 4 tracks! lots of ways to do things. the trouble is on a tape there isn't enough bandwidth and the frequency response isn't flat so it really messes with things and stops these ideas working!
@flymario8046
4 жыл бұрын
Well well well... I am watching your Pioneer CT-50T deck repair and saw this device being used. Searched youtube for it and found this video and had to watch. Great information! In the 70's & 80's I would have loved to have this unit! I had no idea. Thanks a lot!
@phearlobe
6 жыл бұрын
I'm an electronics tech in the USAF. From what I can tell this is a distortion analyzer. We use a 1khz tone to check for a signal to noise ratio and distortion levels in radios and accompanying systems. Some systems will filter out a 1khz tone due to it being for testing in that case we use a 1004hz tone if we are trying to test some systems from end to end.
@arashime
5 жыл бұрын
This brings back old memories... Back in the 80s I used exactly this philips wow and flutter meter to repair tape decks...
@Madpegasusmax
6 жыл бұрын
Nice video . For me , only one thing is missing : on the PC application demo , you should have connected the digital 3KHz file as you did on the Analogue Philips Wow/Flutter meter demo , to show that you see the perfect 3KHz wave form on oscilloscope and 0 (zero) Wow and Flutter deviations ;)
@melvinch
6 жыл бұрын
That Sony WM-D6C looks immaculate !
@ashquarky
6 жыл бұрын
Dang, I'm really liking the way you lit the closeups of the meter! Looks awesome.
@tomleader7054
6 жыл бұрын
Oh yes, Jack de Maneo. That takes me back. If it is the record I remember it is him and a female presenter. On one band he gravely states, "I am now speaking from the left speaker". While she would announce , "That she was speaking from the right". That could reduce my father to helpless laughter, with the seriousness they gave to the announcement.
@maicod
6 жыл бұрын
if people think the left meter @ 4:56 was not exactly zeroed its cause of parallax errors (the camera not filming right on top of the display but a tad from the side).
@lenovovo
6 жыл бұрын
Hey Techmoan, you are not going to believe this, but this is the very first time that I looked at your name closely, I thought all of the time it was spelled "Technoman, I guess I need to wear my glasses more often huh. Anyways I love your videos, and I want to put in a request, would you sometimes in the future do a video on old computers, maybe your first computer and what you liked about it. Would you do a segment on computers of the mid to late 90s. I once owned a Packard Bell legend 1605 Supreme computer. I bought it in 1997. Man, I loved that computer, it was way ahead of it's time. I bought it over at Sears. I bought it as a bundle package. The bundle package included the monitor, keyboard, speakers, mouse, computer, and printer. Yup, all of this came in one big box. I paid $2,500 for it back then. It came with Windows 95. I was fairly new to computer, I swear, if I could find that computer now, and if it was in fairly good condition, I would surely buy it. Techmoan, I will be looking for you to make a vintage computer segment video one of these days. Have a great weekend!!! :-) And yes, your videos ALWAYS get a thumbs up from me. :-)
@tomservo5007
6 жыл бұрын
LENOVOVO: For over a year I thought it was Technoman too , then I heard another youtuber say his name, a mini mind-blown moment for me.
@deus_ex_machina_
6 жыл бұрын
Tom Servo I thought vaporwave was vaporware until I heard it aloud in a Vox video.
@lenovovo
6 жыл бұрын
Tom Servo Wow! I'm glad I wasn't the only one Tom Servo ... LOL .... Anyways, have a great and safe weekend!!! :-)
@bennylofgren3208
6 жыл бұрын
Deus Ex Machina Vaporware *is* vaporware... it refers to software releases that keeps being talked about but never appears... but there is apparently a music genre called vaporwave as well, I just learned from you. 🙂 This is according to Wikipedia however from the early 2010s, while the word vaporware has been around since at least the 1980s so my guess is that the music genre got its name inspired by the software terminology. Definitely not the other way around.
@205nd
6 жыл бұрын
I'd love to see Matt check out some old PC's but if you haven't already seen them I'd recommend checking out channels such as The 8-Bit Guy and Lazy Game Reviews for all your 90's computer goodness! Best wishes :)
@MaxGrobecker
6 жыл бұрын
Maybe the difference in the test tone frequencies are coming from another problem you might want to circumvent: In telephone networks you use a test tone of 8004 Hz. That's because you dont want a tone at the same frequency as your sample rate (usually 8kHz). With 8004 Hz you always have a slight moving "drift" in the amplitude relative to your sampling frequency. Maybe it's the same reason with your meter. I'm not an audio expert, but since 3000 Hz can be divided by both 50 Hz and 60 Hz you might want to have an offset of these 15 Hz to not match the frequency of the power grid.
@lawrencedoliveiro9104
6 жыл бұрын
But then, why would it matter?
@mal2ksc
6 жыл бұрын
Except 3.15kHz is 3150 Hz, not 3015 -- still divisible by 50.
@MaxGrobecker
6 жыл бұрын
Now that you've said it... That must be the reason for my (really!) bad marks in maths... :-/
@MaxGrobecker
6 жыл бұрын
Maybe if you attach a device which is not battery powered to the meter, you might get those 50 Hz / 60 Hz (or a multiple of it) noise on the cable - which then interfere with the original 3kHz tone and therefore making your measurement totally worthless.
@dazzlingd
6 жыл бұрын
Do you mean 800Hz? The frequency spread of a analog landline is 300Hz to 3400Hz. In my British Telecom days, 800Hz was always the reference frequency.
@timwebb21
6 жыл бұрын
It is also the title of an EP by Stereolab who were a much underrated band. Well not quite if you are being precise, it was called Wow and flutter not wow and flutter meter basics.
@martynlewis5901
3 жыл бұрын
Question answered! Was going to ask how can I measure wow & flutter on an old Panasonic RX C45L I’ve just purchased on EBay.
@sachyriel
6 жыл бұрын
Your KZitem counter in the back says 706000, but your subscribe button on the vid says 708K. Keep up the good work!
@thogameskanaal
6 жыл бұрын
Quite interesting. I didn't know the little pitch variation had a name.
@sushantgupta9336
4 жыл бұрын
Great video ...love from India
@dragonskunkstudio7582
6 жыл бұрын
The best wow and flutter test record is Meco - Star Wars 45 single It has a constant horn pitch and it is easy to notice the deviation.
@thelockpickinglebowski633
Жыл бұрын
Very helpful, thanks.
@gordonbobby1
6 жыл бұрын
Excellent video as always
@_synthicyde
6 жыл бұрын
Thank you. I recently started working for a turntable manufacturer and I've been too afraid to ask what these machines do.
@SkyCharger001
6 жыл бұрын
Have you thought about using a line-tester for the test-tone? (while their purpose is to test for signal degradation, they need to produce signal(s) that are even purer than your test-tape.) PS: I know of them from a Dr. Who making of, where they told about how they abused them as musical instruments for the original arrangement of the Dr. Who theme.
@jeffreyblack666
3 жыл бұрын
Hypothetically it would be possible to get 0 wow and 0 flutter on a record which has it. You need a player which is matched to the wow and flutter of the record. For example, a hypothetically perfectly repeatable player/recorder, which is all properly synchronised, could record with significant wow and flutter, but playing it back immediately would result in no wow or flutter as it cancels. It is extremely unlikely to occur normally, but hypothetically possible. For the simplest case of an off axis record player/recorder, by changing the phase, i.e. rotating the record relative to the turntable, you could adjust from a point where it cancels to a point where it is maximised.
@pauldzim
6 жыл бұрын
That's a really good result for that Sony cassette player.
@ChrisKewl
6 жыл бұрын
He gained 29 viewers in the course of that video. That counter was the only thing I could focus on.
@sergiu1624
6 жыл бұрын
On a cassette player/recorder, the flutter is mostly caused by the worn clutch take up reel.
@ml.2770
6 жыл бұрын
The Set Nought knob is labeled strangely.
@nicolaibo
2 жыл бұрын
I'm constantly hearing the "test tone", I'm just thankful that it ain't flutterin' about as well 😂
@theambiencetriangle
6 жыл бұрын
i love this channel
@simonsaysrewind
6 жыл бұрын
Great video as always. Would love you to do a video on poweramp music player as there's a lot of settings on there that I would love to learn about and I don't think anyone has done one even though I think it's a very popular music player in the google playstore.
@gamingmusicandjokesandabit1240
4 жыл бұрын
1:16 it does, but maybe that's because I know how to work out the chords. The only question is, can you break the tape with the hubs rotating at constantly changing speeds?
@redmerbootsma9375
6 жыл бұрын
I'm curiuos how the Sony recordplayer compares to your Denon. Any chance for a few quick numbers ? Keep up the good vids !!
@matthughesrocks
3 жыл бұрын
I find that some of my records have this but most don't so not sure why some have it and some don't. I can visually see the needle moving on my ACDC reissue and it doesn't do it at all on the original version.
@shelby3822
6 жыл бұрын
I need to bring one of these over to my friend's house and hook it up to his 40$ turntable. He was excited to show it to me and played Synchronicity for me and I just broke out laughing it sounded so rubbish. Guarantee the needles would be pegged
@robertgift
6 жыл бұрын
What amount of wow and flutter is noticeable? Interesting record player! Laser reads groove?
@Federico84
Жыл бұрын
What if I put a compact cassette adapter with a jack? I could feed the 3 kilohertz tone from my phone directly to the tape heads
@10p6
6 жыл бұрын
The next video he shows the daunting task of fixing the 'Wow and Flutter' issues. :-)
@TheStwat
6 жыл бұрын
Great video, Mr Moan. :)
@Doobie3010
6 жыл бұрын
Approached the video in trepidation,thinking you where gonna flutter those “baby-blues” at us... 👍😂
@clemstevenson
6 жыл бұрын
And that’s why I have no nostalgia for ye olde tymes, even though I am older than Techmoan. Sure, I have lots of old music from the days of 45s and 33s...but it’s all digitised and re-mastered. No crackles, pops, playback wow, or playback flutter.
@clemstevenson
3 жыл бұрын
@Deon Denis Especially in a car...lots of shakes & vibrations. Solid state digital, using a USB flash drive, wins every time. The old days of tapes that used to go wrong were crap.
@foxtrotkilomike
6 жыл бұрын
Can you measure the wow and flutter from the 3M Cantata 700? That will blow it off scale. But no test track.
@Patrick_AUBRY
6 жыл бұрын
This netter should be use on a TBC equipped S-VHS player and a home VHS with hi-fi audios. This to know if it has variation. The should curtains variations in a 1/30th 0r 1/25th of second?
@Peasmouldia
5 жыл бұрын
That test tone is the same frequency as my tinnitus, which seems to be completely free of wow and flutter......
@RawbeardX
6 жыл бұрын
does a wow meter measure Owen Wilson's activity?
@PlasmaHH
6 жыл бұрын
Wow, a flutter meter!
@wallyhall
6 жыл бұрын
I must admit I was distracted watching the sub counter! My Mazda has terrible “wow” drift at times, but over Bluetooth?! Really audibly not I able to both me and my wife. Must be a firmware issue or a bad DAC or something I’m guessing?
@mystica-subs
6 жыл бұрын
"Quick Extra Video" - Is nearly 19 minutes long :P
@thecodemachine
6 жыл бұрын
mystica5551212-subs maybe it’s because his last few videos took months to record.
@_afw_
6 жыл бұрын
I‘ve never seen a @Techmoan video that‘s too long....
@strfy3492
6 жыл бұрын
How about a video on cassette to digital converting
@andreib302
6 жыл бұрын
Did you buy a new microphone? Your voice sounds clearer IMO
@Techmoan
6 жыл бұрын
Nope - same lavalier - they Boya BY-M1 - I think it's my USB mic that sounds a bit poor - that's due to reflections.
@shafquatrasulkhan3826
6 жыл бұрын
Please make a video on beta max VCRs why's these technology are failed?
@StofffeGbg
6 жыл бұрын
Flippin 'eck! All that in (almost) one take, you're awesome Mat. Keep up the good work!
@YourLocalGP
6 жыл бұрын
Just goes to show that preparation and attention to detail, good audio, good flow, still matters. Can you imagine how bored, how quickly we'd get with most commercial TV presenters doing a single piece to camera for this long!
@twocvbloke
6 жыл бұрын
Would have been funnier if they called it Wibble & WooWoo...
@kbhasi
6 жыл бұрын
That sounds like a thing for kids
@johnfrancisdoe1563
6 жыл бұрын
twocvbloke Wouldn't work in conversation, and would be terrible when desperately trying to fix gear before a live event. The two words need to sound different and be obvious, so you don't shout "Too much Wibble" and the other tech turns the dial for "less WooWoo, more Wibble" because the words are so confusing.
@twocvbloke
6 жыл бұрын
"Wibble", not "Wiffle"... :P
@panpaletkalg2550
6 жыл бұрын
i guess no one can stop you from calling it that
@buddyclem7328
6 жыл бұрын
Being British, I almost expected something like, "wibbly-wobbly timey-wimey stuff".
@snapsnappist4529
6 жыл бұрын
Interesting vid. Although throughout the development of sound recording in the 20th century, engineers and the like were always working on ways on reducing wow and flutter (and pretty much achieved it with the advent of digital recording) something may have been lost in the process. Although it's true that excessive amounts of wow and flutter to the point where they become audible can ruin a piece of recorded music, a very small amount may actually be quite desirable. Studio quality master recordings made on well-maintained super high-end tape machines have very little in the way of wow and flutter, but they still have a small amount of what is known as "scrape flutter" - that is, the minor, almost imperceptible speed variations caused by a length of tape being physically dragged across a tape head. I read somewhere that this phenomenon is very similar to the principle of bowing a violin string - the tape, when it "flutters", produces a kind of resonant frequency, which may be one of the factors that contributes to what some term "analogue warmth". That's one of the interesting thing about analogue formats - even on the best turntables or tape machines, the speed variations each time you play something happen in a different place, so in effect, the same piece of music is actually different every time you hear it.
@crimebodge7274
6 жыл бұрын
I keep getting distracted by the subscription counter in the corner. I can't help watching it to see if it changes.
@JaredConnell
2 жыл бұрын
Me too lol. He gained 29 subscribers in the time it took to film this video. There were a few times it clicked over on the video and some were added during cuts. Nowadays it's less interesting to watch now that he's over 1 million but still interesting to notice when the video was recorded in terms of how many subs he at at the time.
@JonCo
6 жыл бұрын
Have you tried taking readings off the RokBlok?
@nickwallette6201
6 жыл бұрын
That one just reads "wow."
@MarioManTV
6 жыл бұрын
Jon Co I was thinking about this myself. You have to realize that he'd be destroying an incredibly expensive test record in the process. I'm not sure it's a worthy sacrifice, but I wouldn't complain if he did it either.
@3rdalbum
6 жыл бұрын
The scale on the Phillips machine probably doesn't go high enough to measure the RokBlok.
@Boemel
6 жыл бұрын
would be so much wow, owen wilson would make an appearance on the channel.
@Techmoan
6 жыл бұрын
If you look closely you can see it's new function in this video kzitem.info/news/bejne/x3qCrZqbqIGofW0
@johnclark2333
6 жыл бұрын
Decca record narrated by Jack de Manio, a well known BBC radio presenter.
@binface9
6 жыл бұрын
Sticky Pinch Roller is a great name for a band
@3rdalbum
6 жыл бұрын
I always thought Capstan was a country in the Middle East.
@mal2ksc
6 жыл бұрын
Is vey nice.
@Οδοιπόρος
6 жыл бұрын
Sinky Rich Poller
@ka8syv203
6 жыл бұрын
There was a band called “The Capstan Shafts.”
@benpratt4681
6 жыл бұрын
Or a cricket term.
@victorhugotoledocofre1366
6 жыл бұрын
~2,000 subs in the same day? (29 during the vid only) Wow!! (no flutter there) Your channel has a lot of quality content, Mat. No wonder.
@chrisslater1985
6 жыл бұрын
Pretty cool watching your subscriber counter going up
@inbet1979
6 жыл бұрын
chrisslater1985 I kept watching his counter! It was awesome to see!
@Boemel
6 жыл бұрын
Waiting for a million :D
@U014B
6 жыл бұрын
"It's got to get quite noticeable for me to be able to hear it." _Technoman, 2018_
@specificdeterministic5928
6 жыл бұрын
Technoman?
@jur4x
6 жыл бұрын
It's Techmoan not Technoman
@jacekschneider4686
6 жыл бұрын
I prefer Techmoron. (i like him, it's perfect video podcast)
@SmoothEmJay
6 жыл бұрын
If Techmoan was a school teacher, every single student would pay attention. I know this because I've watched every single upload, even when the subject doesn't *appear* to be interesting to me personally. You always learn something, sometimes have a laugh with the puppets. Great stuff as always.
@soverysleepy
6 жыл бұрын
first she flutters her eye lashes, then the man says wow
@timwebb21
6 жыл бұрын
how would the meter measure this? The woman would need to emit a test tone?
@2cents422
6 жыл бұрын
Yes, a test tone. Perhaps in high "C".
@05Forenza
6 жыл бұрын
Anyone notice he gained 29 subs during the recording of this video?
@nonroadusr
6 жыл бұрын
Should Mr Moan say 'WOW' to that *Or* Should He say 'Flutter' to that? My guess would be 'WOW' ;-)
@1HotLegendLS
3 жыл бұрын
He must be an awesome Dom
@laureven
6 жыл бұрын
Techmoan: Maybe You can organize some tours with current audio factories how it is done today. If something sounds interesting for You, it will be interesting for Us ...just the idea for new content series. .I'm sure that You have fans everywhere so to organize access will be a not too big hassle for them :) .. I hope You know what I mean ...I like all You videos :) Regards
@NOWThatsRichy
6 жыл бұрын
Nowadays that would involve a trip to China!
@ChipGuy
6 жыл бұрын
As far as I remember the 3.15 kHz are actually 3.146 kHz and they were uses as a standard test tone derived from the NTSC horizontal frequency by dividing it by 5. It was used for all sort of audio stuff, since that frequency was generated by a very stable crystal.
@JustSomeOldGuy
6 жыл бұрын
I remember the 'Wow' of the music, in the olden days, when the phonograph record hole was slightly larger than needed, or off center.
@peter_aka_hamamass
6 жыл бұрын
I own a VeeJay label Beatles record, not sure if it is a repro bootleg, that has side two not pressed correctly is even shows while playing! Side one is fine, but side two has wow in way that is beyond adjusting. It really is WOW, when heard and seen. But for fun i'm gonna keep it.
@shroomologist
6 жыл бұрын
I've seen a lot of pressings where the hole/grooves are off centre, it can really ruin the experience to be honest especially if there are a lot of long, sustained notes. To be honest I doubt any record is going to be truly centred, it's more of a case of most of them being close enough to be negligible I think. I have a handful of timecoded records that DJs use to control digital audio with turntables and with most of those the speed displayed on screen will oscillate slightly with the rotation of the platter, but not to an audible degree.
@AlainHubert
5 жыл бұрын
The single most common source of Wow on any turntable is the disk turning askew, because of an off-center punched hole in the middle. You could have the most stable speed drive in the world and still get Wow out of a disk because of that. There have been rare and expensive turntables that corrected the centering of a disk automatically before playing it (Nakamichi Dragon). kzitem.info/news/bejne/sKSt0oabkquHenY
@davek12
6 жыл бұрын
I have a Columbia House copy of a Rush album with a hole that's off center. That's wow.
@johnfrancisdoe1563
6 жыл бұрын
davek12 And flutter! It'll go back and forth on every turn.
@svenschwingel8632
4 жыл бұрын
Guess you need a Nakamichi DRAGON CT turntable then. It auto-corrects off-center records.
@moose64
6 жыл бұрын
Your channel gained 29 subs during the making of this video.
@johnstone7697
6 жыл бұрын
The numbers you're getting off that Walkman Pro are pretty impressive. This leads me to think that you have some kind of weighting engaged in those measurments.
@soulfunktionphoto3593
6 жыл бұрын
I have that record testing album bought it from a car boot and it helped me set up my upstairs hi-fi as I had the speakers set up wrong. It was well worth the 50p I paid for it.
@superdau
6 жыл бұрын
I wonder if you could measure the wow/flutter of a tape deck which you use to record and play the 3kHz signal. Of course you will introduce flutter while recording, but if you then remove the tape, spin it a little and put it in again, the recorded flutter should be in a different "position" than the playback flutter. If you do this a few times you should get a minimum and a maximum flutter, kind of like destructive and constructive interference with light or sound. The real flutter should be the average of the minimum and maximum.
@davidchristensen6908
6 жыл бұрын
I like the point you finally get to. The wow and flutter on the 2 Walkman you would not to be able to hear. People get so nutty over how accurate this equipment over that equipment. The last time,3 years ago I was buying a stereo they guy was doing everything to not let me listen to the unit I wanted with speaker a vs speaker b telling me I need to buy them in sets. For these technical reason and that quality of sound. I point to my ears and said. I am 60 years old, I ware hearing aides do you really think I can hear the difference your talking about? I will buy the speakers that sound best to the hearing my wife and I have. None of the stats mean squat at this point. Your 30 in 20 years from now it will be the same for you unless you just lie to yourself. At my age it is cost vs the quality that I can hear. That’s as good as it gets. Even after all that my kids come home listen shake their hearts and say “ Geez dad you always get the best sound for a reasonable price our whole life’s you’ve always had a bitching stereo system.” I hope there ears aren’t that bad. But I think it proves the point the stats they talk about in the paperwork is just beyond most peoples hearing and understanding. I love your no nonsense practical way of thinking. Good video as always
@RudalPL
6 жыл бұрын
I usually walk out straight away from shops where someone tells me what sounds better speaker A or speaker B without even letting me to listen to it.
@phillipsofthedriver
6 жыл бұрын
The people who get nutty over how accurate this bit of gear is over that bit of gear are called measurebaturs. I get you on the sound quality thing too. Pick what sounds good to you, whether it be a mismatched set of Klipsch, Bose, and Sansui, or a set of old Radio Shack Optimus you found at a thrift store. (I originally typed "Maximus" for the radio shack brand - had to go have a realistic check on my memory...)
@MrWombatty
6 жыл бұрын
HiFi equipment has always had something in common with sports-cars, because by the time you're old enough to afford the good gear your body no longer lets you enjoy it as much as you would've in the past! In the case of sports-cars, quite often you see older men finally getting to drive their dream convertible, but it's difficult to really enjoy 'wind-in-your-hair' motoring when you no longer have any hair!
@netsurferx1
6 жыл бұрын
I get the 3KHz, but I'm mildly stunned that nobody (to my knowledge) used the tried & tested 1KHz tone or even 400 Hz.
@dennisthebrony2022
2 жыл бұрын
People nowadays put a WOW AND FLUTTER effect on most lofi songs to enhance the nostalgia of that particular song.
@WaltonPete
6 жыл бұрын
As an electronics engineer and enthusiast, I have a frequency generator which can easily produce a digitally derived sine wave upto 24MHz so I'd easily be able to produce a tape for testing at 3KHz but, as you point out, it would entirely depend on the accuracy of the recording deck. I was wondering if the tape used is any thicker than a standard one to reduce stretching over time lowering the frequency of the test signal?
@mediocrefunkybeat
6 жыл бұрын
Same here. I can easily produce a 3kHz tone and put it on to tape. In fact, Audacity has a rather good tone generator, too.
@Techmoan
6 жыл бұрын
Yep - but when you want to test any walkman without a record function - what tape will you use? If it's the one you recorded on your home deck the w&f on that tape will almost certainly be considerably higher than on a well made test tape.
@mediocrefunkybeat
6 жыл бұрын
It's fine, Mat. We'll just use the Type 1s we got from the Argos catalogue in 1987! Whatever else?!
@MrWombatty
6 жыл бұрын
A good quality 30min cassette from a reputable brand should give you a good result recorded on a decent deck (use a Metal tape if the player can play them). Clearly remember the thinner tape in 120min cassettes being chewed up by my Toshiba boom-box/book-shelf stereo almost 40yrs ago! Recently I managed to acquire a very good Yamaha deck from my church as they no longer had a use for it, & as they mainly used either of the twin-decks they still have, this single-deck unit is in really good condition so I'd be keen to know how that would fare!
@thumbsdownbandit
6 жыл бұрын
Thanks, I checked all my mp3s. They are fine.
@tiberiu_nicolae
5 жыл бұрын
That testing record is the gold standard of British accents
@robni7
6 жыл бұрын
1:48 - thought that was Remus Lupin for a second :)
@Cammi_Rosalie
6 жыл бұрын
Eat this, it's chocolate. It will help you feel better.
@speedfreakpsycho
4 ай бұрын
Just tested my Pioneer Plx1000 and WOW = 0.1815,,, FLUTTER =0.1364 avrg over 10 sec, is that good?
@novafawks
6 жыл бұрын
If it's just a constant tone wouldn't the little bumps in the record grooves be perfectly spaced apart? Does it noticeably look any different than a normal record? I'm curious to see what it looks like!
@Hordes_Of_Nebulah
6 жыл бұрын
I would like to play around with this on my Technics SL-5100. The thing is super consistent and specced out at 0.025% wow & flutter. I would like to see how my at-lp120 compares to my Technics as well because in my experience it is like a b-movie version of a technics at best and the quality improvements are obvious on the Technics. I just wanna take Audio Technica down a peg haha.
@geonerd
6 жыл бұрын
Try recording the digital signal onto some of your analog devices, then measure the frequency drift. I'd like to see how accurate a high end reel-to-reel tape unit really is.
@TMNT39
6 жыл бұрын
I'd like to see that as well, but the problem with it is if he is to record the test tone onto tape himself, wow and flutter is likely to be introduced on the recording, and then when it's played back there will only be more, making an inaccurate reading. Hence why he explains that you need a properly made test tape that has the tone recorded as near perfect as possible to accurately gauge the reel to reel's wow and flutter variations from the near perfect recording. A recording done himself would unfortunately not be near perfect as he explained.
@tomkent4656
6 жыл бұрын
Pro test cassettes are made on a reel to reel duplicator.
@86Ivar
6 жыл бұрын
Wow on turntable could be unbalanced record and the fact that it is vertical.
@demonicsweaters
6 жыл бұрын
Another great video. Curious/unrelated, have you ever done a "pono player"? Remember Neil Young's weird little triangular lossless audio player? I've always been curious about those things.
@Techmoan
6 жыл бұрын
I have one - I never did a video about it. Whenever I played audio from it in a video the trolls came out.
@power-max
2 жыл бұрын
Digital format may still suffer from wow and flutter if the crystal oscillator in your digital device happens to drift for whatever reason. Of course it is many orders of magnitude better, effectively a non-issue and is independent of the media being played.
@7stringguitarplayer
6 жыл бұрын
i had no idea that british people had another word for zero until today.
@5roundsrapid263
6 жыл бұрын
7stringguitarplayer It’s from Old English.
@DaveyMulholland
6 жыл бұрын
Dreadnought
@bruce_adams
6 жыл бұрын
All for naught!
@timwebb21
6 жыл бұрын
I thought the zero was a Japanese WW2 fighter aircraft
@pu5epx
6 жыл бұрын
What hardware is that KZitem Subscribers Counter at top right? I would like to buy one, but to show other info.
@Techmoan
6 жыл бұрын
Its this kzitem.info/news/bejne/wnt_zpdja6iefII
@JohnnyX50
6 жыл бұрын
Do you have a direct drive turntable to test? Im curious how the result would be. I have a Numark TT1650 dual start/stop dj turntable with pitch control and slipmat and wondered how direct drive compares to drive belt turntables :)
@DreitTheDarkDragon
6 жыл бұрын
*thinks loudly* Would be interesting to make perfect LP player which could even measure how much is center hole off center (and at which place of turn), then slightly compensate speed to get perfect speed under stylus. (btw, Technology Connections talks about wow and flutter in "Faking It: The Obviously Dubbed Telephone Ring" since 9:00)
@raysrcsandtech
6 жыл бұрын
They really should bring back proper tape decks.. great machine I want one
@spookylemon4947
6 жыл бұрын
Rays RCs They wouldn’t sell particularly well, that’s why we don’t have them anymore. Digital music sounds better and contains more than a cassette without the wow and flutter.
@officialclownbusiness7788
6 жыл бұрын
Spooky Lemon yeah, but a lot less damage resistance.
@spookylemon4947
6 жыл бұрын
John Crapper Not really. Less metal might be used. But that’s nothing to do with the format itself. And the tapes themselves are the only ones going to be damaged, they degrade or could break. That doesn’t happen with downloaded music.
@DouglasMilewski
6 жыл бұрын
(I've recently watched your puppets give instruction on how to leave a KZitem comment. Let me see what I remember.) I haven't watched your video yet, but your values are all wrong. And why are you using that equipment anyway? There's an app for that. I've hacked my camera to display the VU's on the screen. Just about everything was wrong. Otherwise, great video.
@romyaz1713
6 жыл бұрын
I suppose you could avoid sourcing the expensive calibrated tape if you just record a computer generated 3kHz tone and then play it on the same machine. then the real flutter RMS power should equal to measured RMS flutter divided by square root of 2 when measured multiple times. but the "wow" average will always be zero unfortunately - can't fool this metric. also, it'd be interesting to know what is the frequency difference between the two metrics. or is "flutter" a derivative of "wow" - just form math standpoint
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