These instruments play themselves!

[@senorjp21]

You could record a string quartet on separate channels and play back on the corresponding instrument for an authentic performance

[@TechIngredients]

Agreed

[@jenniferwhitewolf3784]

Next video? Its the natural progression.

[@daviddroescher]

Dito. Add how to use the different fq response of the different sizes to sort out, say, an LP playback / direct exposure to live performance they have become a giant microphone.

[@frederf69]

it wont be authentic because of different method

[@wobblysauce]

@@frederf69just a thing for animatronics… the sound is just adding to the theatrics

[@mcpa2991]

Just a helpful tip for removing high strength double sided tape - dental floss is strong and fine enough to make good progress cutting between the tape and the adhered surface with relatively low damage to the surface. Its also relatively easy to exert more force (wrap it around handles etc)

[@recklssabndon]

Made in Germany, US Zone would seem to imply that the Bass was made between 1945-1949 somewhere near or around Bavaria

[@TheMightyZwom]

At 41:45 I literally had to pause the video, walk over to my guitar and tap on it. And yes, the wooden body on the side with high-pitch strings resonates at a higher frequency than the side with the low pitch stings. I never noticed... This is amazing. I guess you lern something new every day. Thanks!

[@martijnvanbeek4387]

Same here! Never thought of that....

[@SushikiIIer]

If you though that was cool you should look up the video "How to Tap Tune the Soundboard tone bars." by Tomy Hovington. He goes through the process of scraping the tone bars down on a tenor mandolin untill each is in tune. Its got all sorts of crazy things to think about tho, it made me reconsider picking up luthier work as a hobby. xD

[@neepsmcfly4176]

I gotta say, one of the beautiful aspects of this channel is how you keep switching it up. 2 words outta your mouth and i know who I'm watching yet the delivery is, in itself, an experiment. Pretty inspirational. Glad you're out here!

[@TechIngredients]

I appreciate that

[@VV0RK]

One production tip: leave the stock long when sanding so it is easier to hold when sanding at 11:23, you can slice it to the desired thickness after it is formed .

[@TechIngredients]

Good idea. Another would be to use a hole saw to cut them out of a sheet, although they will be thin.

[@rainaldkoch9093]

Sanding an adapter piece may not be necessary. A thick layer of glue should do. I think of the glue that is used to stick credit cards to paper letters. If free of bubbles, the material is close to incompressible. It is also easy to remove.

[@ericmeyer6155]

Loved seeing the kids asking so many questions. You definitely created a couple life-long audiophiles that day. I would have been so amazed to check out something like this as a kid (and still would be today haha)

[@DescartesRenegade]

I'm legitimately stunned you used to be a physician. The level of scientific and engineering knowledge you possess is nothing like any of the physicians I've ever met. The pre-meds I went to school with were nearly always the ones who barely scraped by in the science/engineering courses.

[@TechIngredients]

Thanks! That was my experience as well.

[@BigParadox]

It would be cool to take a recording of some nice baroque music from a small string ensamble and let the violine part play only through the violine, the cello part only through the cello, and so on.

[@dennis-nz5im]

Take mine from bluegrass please. I can hear the big dumb bully coming out of the bass.

[@petea]

You beat me to it! Had the same idea. I bet that would sound really interesting.

[@Phriedah]

This tech is begging to be an art installation

[@Charlie-Oooooo]

This is a great idea! But what about resonance? As I'm sure you know, every instrument body has a frequency response curve that gets added (summed) to the source music. It is based on everything ranging from the type of wood (basically density), age, moisture content, shape of the instrument, bracing, finish, etc. Did you (or could you please?) do a frequency response analysis with a (pink,etc) noise generator and a flat response test microphone? You could then add a small graphic equalizer to compensate for the response or any nodes of resonance of the instrument body - perhaps keeping some of the sonic characteristics of the body, i.e. 'flavor to taste, as desired'. But I really really LOVE the concept guys, especially the aesthetics. Cheers!

[@MrTurnermason]

Yess!!! Thank you!!!

[@MrTurnermason]

Very well said!

[@365Condoms]

great idea. I believe there would be some "annoying" frequencies. Software could "kill" those frequencies on one speaker and transfer it to another one thad does not suffer.

[@takeohtyme]

The driver just vibrates, exactly like strings or whatever. The only difference is that it's doing it only to the body, which is what provides resonance... This is actually a great idea.

[@troelsfischerthomsen1892]

They could probably tune the speakers

[@MrWaldo]

I think there is a better way to mount the actuators. The soundboard is designed to be driven under tension, at the feet of the bridge (not between them), by a signal passing _through_ the bridge---the bridge is an important part of the system. E.g., that way you get two driving modes: 1. the feet bouncing up-and-down (in phase) at lower frequencies; and, 2. in contrary directions (out-of-phase), twisting the soundboard at higher frequencies. It also does some filtering. So: I would try mounting the actuators off-center on top of the bridge, held in place by the tension of, say, bungees, to re-create the normal force that would be exerted by strings in conventional playing. Failing bungees, actual strings would work, as long as they are heavily damped against sympathetic vibration---that might be an easier way to get the required tension, spread across the bridge in the usual way. Love the channel!

[@aquasparky1]

Mr. Waldo, you are correct. The stringed instruments are designed to vibrate from the fulcrum of the sound post with the bass bar acing as a distribution device as well as a dampener. The instruments need a bridge as you suggested. I also think that mounting the frequency generating device directly to the bridge while under normal string tension would be the way to maximize the acoustic qualities of the instruments. The sound post distributes vibrations to the maple backs of the instruments and helps with the production of volume as well as tone. Naturally not as critical as the spruce sound board but part of what makes a violin family instrument a very efficient acoustic machine. So I agree that the bridge is essential to transfer the sound to the soundboard and the proper tension on the sound post is needed to maximize the acoustic value of the rest of the instrument.

[@calebmcurby8580]

I don't think bungees would be capable of equaling the force that strings produce. But totally agree with the idea of putting it under tension and transferring the force through the bridge as intended. I'm under the impression that it would give a much fuller and more true to life sound

[@davidwilson6577]

I'm tempted to disagree, or at least I think it'll be a negligible difference. The system is designed to amplify string vibrations. You can't just glue a string to a bit of wood, it needs to be held under tension. You can just glue a driver to the soundboard though.

[@MrWaldo]

@@davidwilson6577 I'm not talking about gluing strings. They are fixed in the normal way, pressing the actuator to the bridge. The system is designed to transmit a signal through the bridge to a soundboard that is under tension. The bridge and the tension (of the strings pressing normal to the soundboard) change the behavior considerably. E.g. compare the tap tones of the instrument before and after a setup.

[@davidwilson6577]

@@MrWaldo of course you're not talking about gluing strings. The point is that you _can_ just glue the actuator to the soundboard. The tension is required to produce sound in a violin. In a violin that is now a loudspeaker, it isn't. So you'd want to clamp the actuator to the bridge using the tension of strings? And just have them there, resonating at their discrete pitch? Yes the soundboard being under tension would change the frequency response a bit. I doubt it would be very significant. There's quite a difference between tapping the soundboard and oscillating it with a driver. I guess the only way to know is extremely complex physics simulations.

[@theOriginalDonHuevo]

I've dabbled with these quite a bit since watching your initial DML videos and come to the conclusion that organic materials sound more realistic. Cardboard, paper-backed foam posterboard, etc. My favorite so far is honeycomb core cardboard.

[@NickCombs]

0:00 ⚠️ Flashing image warning ⚠️ Jump to 0:24

[@artemivanieiev1445]

I learnt about dml emitters for the first time from your video, great technology! I recently tried out a dml emitter with stringed instruments, I got a great result, I think I will continue to work in this direction. I see your work, bravo maestro!

[@franciscorompana2985]

35:14 Materialization of a person for the film, can be observed with the translocation of their entire body and their mind from behind the camera to the front part of the stage area where the experience is being filmed, in front of the camera and in the middle of the public sidewalk, thanks to the resonance obtained by sound instruments and their amplification by valves, thus creating a direct quantum vehicle between music and desire.

[@netbeans9669]

The boy has powers unimaginable by mere mortals.

[@jonathanhughes380]

I have done the same thing with Putting Speakers in side of guitars tuned up with strings also in pianos they sound the best. The sound is amazing. great job. Leaving the string and tune it correctly ads even more depth because the strings will vibrate with it.

[@TechIngredients]

Thanks, good ideas!

[@ahobimo732]

The footage of Science Dad explaining the setup to passersby in the park is the most genuinely wholesome thing I've seen in a while. Thanks for that. 😊

[@TheCookieCoolMan]

I'm willing to bet that these sound better in specific keys. The way violins are built (at least the good ones) they usually resonate a lot clearer in keys with sharps (C,G,D,A,E,B if we're talking major F# being the exception because in terms of frequencies it's identical to Gb) compared to the rest of the keys containing flats.

[@TechIngredients]

Interesting

[@tarstarkusz]

24:10 US ZONE in GERMANY means it was made during the period of occupation of Germany right after WW2. Germany was split into different zones. The Soviet zone got turned into East Germany and the rest became West Germany.

[@TechIngredients]

Interesting. That sounds familiar now that you bring this up.

[@tarstarkusz]

@@TechIngredients It was broken into 4 zones. French, US, British and Soviet areas.

[@sc0or]

1. Every acoustic musical instrument is made with a specific resonance frequency(es) in mind 2. A loudspeaker membrane is the best (but not an ideal) way to reproduce sounds from strings, wood, coil pickups, metal cymbals, a voice, etc.

[@libertyrevolutionary1776]

This is actually a really good idea. Particularly if you play the tones those instruments are designed to play on their tone boards.

[@DanielLopez-kt1xt]

I made myself some DML speakers in the hotel i work at, following your instructions, with some recycled componentes (a broken portable fence with wheels, some scraped thin wooden boards and the actuators got recycled from an old LG tv, there were 2 normal speakers and 2 actuators glued to the plastic TV frame from the inside). They all said the same thing: where is the speaker? Noone believed how it worked, until i explained to them. Very good sound indeed, i'll definately build some of these once i get my own house.

[@indridcold4210]

I've been doing this to my guitars for the last 10 years or so. I use a Tectonic TEAX32C30-4/B 32mm Balanced Exciter and double sided tape and put it on the center of the bridge and play music through it from a small cheap class D amp. It helps(play in) the solid spruce tops so that they sound better. I just play whatever music I like as background music for a few hours a month or so and it keeps the guitar sounding great.

[@TechIngredients]

Fantastic!

[@NoMan-zw5wb]

You know what is also fun. If the instrument is strung and tuned the strings vibrate sympathetically. A frequency test on the instrument will find harmonic resonances in the strings and they will ring like magic.

[@ast_rsk]

I would be interested in seeing recorded technical data/measurements or a breakdown in objective speaker performance between the different materials + these new instrument based ones.

[@borat6363]

Another legendary video, well done team! First time I learned MP used to be a physician (a medical doctor, if I understand correctly)! I had believed up until this point that his career consisted of high energy laser physicist. Just goes to show you that humans are very complex and interesting. Also shout out to Jr stageblocking MP closer to the wonderful Ava Maria vocalist lol.

[@Taygetea]

yeah, from the video where there was an injury, i think thats the only thing we know about MP besides that he's in ME/NH area

[@PygKLB]

@24:08-The US Zone was part of the partition of Germany after WWII. It lasted 1944-55, so your instrument was presumably built then.

[@transistor754]

Awesome as usual! Please keep going! I once saw the use of an old discarded human skull as a voice speaker. They were shocked! It needed soft matter in the upper regions and fluffy stuff in the throat. The addition of a box of wood under the skull made a good chest cavity.... the awesome thing about your invention is how the resonator chooses its own frequency range! No channels of filters/ graphic equalisers like in the old days!?!

[@peniku8]

The idea is really cool, but I don't like how they're used as normal speakers, because for that, their technical performance will be terrible. But if they were to be corrected via dsp and then play back sounds of their corresponding instruments, that would make for really cool looking and sounding setups. Place a string quartet somewhere and just give each instrument a seperately recorded signal and let them play together. It would be a cool thing for a museum lobby for example.

[@johnsimun6533]

35:45 amazing, congratulations, I can’t imagine how stressful it would have become, relaxed and normal conversation, then on the spot, and on video out of nowhere, and you still knocked it over the top of the bleachers. All the way to the parking lot. I would enjoy listening to videos of you preforming, and you seem like you have a voice that would make blood pressure relax and, I can imagine that you could educate people, on techniques, and process. And you probably have some stories that would be entertaining, and informative. Bravo, bravo.

[@KetterHomeImprovements]

Loving this channel more each video...

[@azureumbra]

I recently saw a video about a Rotary Subwoofer and thought it was a really cool idea! As you all are back doing some audio stuff recently, I thought it might make a cool video and figured it fit right into your niche of interesting tech taken to extreme precision! I'd love to see what your take is on it and an explanation of the physics behind it!

[@zachniedfeldt]

algorithm got you and me both.

[@quartamile]

Novel but not practical

[@tycannah4271]

Would have liked to have heard each individual instrument when its playing a different assortment of sounds and some technical details on the final outputs compared to traditional speakers but maybe you have covered this elsewhere. Dml emitters are new to me.

[@365Condoms]

QUESTION: The driver is obviously not heavy, and will have some sort of resonant frequency. since the Ciello is much heavier, wouldn't it sound weird at certain frequencies?> Would you be interested running whole 20 - 20kHz frequency slowly ramping it up and seing what it does?

[@TechIngredients]

We didn't hear it, but you're probably right, and that would be the best way to test it.

[@365Condoms]

@@TechIngredients It would be most interesting. See, in the "usual" loudspeaker, the driving element is much lighter than the casing. Therefore when the resonance frequency is caught: the driving element would vibrate. Your speakers are exact opposite. It is really interesting to show the resonant frequency in action. Very interesting. Sorry for my bad english.

[@thirdeye4654]

Hey I liked watching this and I love how serious and detailed your explanations to the people is. I would recommend starting with just presenting them the playing "instrument speakers" and asking them if they like what they are hearing and to rate the sound quality. After that it's probably easier to explain how you did that. Also those reactions would be more interesting for us viewers. :) Loved the a capella person by the way, great voice.

[@nikilragav]

Yea, instead of telling them the speakers sound good, ask them

[@SithLith]

Would love to see a list of links to some of the actuators that you used

[@NETBotic]

This channel is awesome! Thanks for all that you do!

[@ministerRichardIanofKerr]

perfect. and ive gathered so many old acoustic guitars this year along with dozens of old car stereo speakers. i'll make a few, so thank you for sparking the idea mate. I am mainly using the old guitars as bird boxes for the local natives i share time with. and the old speakers I snavel the magnets for projects and the coils ive been collecting for when an idea comes for those too. :) Happy days to that pretty cool community there I witnessed in the park. Good families, and polite intelligent kids. Nice to see.

[@danielbartlett2381]

You guys rock as always. 1 million subscribers is soon to come. Best at what you do (and that’s a lodda stuff) and perfect audio every time too! Ahem.

[@woosix7735]

what an awesome idea! It would be interesting to see a frequency response from them if you could measure that

[@Leonards_life]

The first store I ever worked at had transducers in the wooden floors and it was amazing!

[@realcygnus]

Nifty as always ! This has been perhaps thE best channel of its kind from the very get-go. 1M subs is long overdue IMO. Onto 10M+ !

[@YG-jn8st]

@24:05 "Made in Germany, US Zone" Is this maybe referring to post WW2 occupied Germany, when it was split up into 4 chunks to be administered by the Allied powers. The "US Zone" would have been Bavaria and Hesse, and parts of Wurttemberg and Baden, as well as a western quadrant of Berlin. It also potentially confines the date to sometime between the end of the war in 1945, and when the American & British zones merged in 1947, or at least before the formation of the Federal Republic of Germany in 1949, when the French zone was also merged in.

[@TechIngredients]

Agreed

[@MrTheog1989]

Really looking forward to the livestreams, due to timezone difference I wont be able to watch them live, but I will 100% be catching up on them after the fact!

[@carlpeters8690]

I really want to see this done with an old piano soundboard.

[@dapperdave4952]

WOW, this is an Outstanding video full of technical, and actual demonstrations and as always exceedingly well done. Thank you!

[@vinatechcoy]

I just imagine if I had time, I would build one based on your concept. However, I would hide the driver behind the bridge. At the same time, I would leave the neck and the strings intact for the visual purpose. Of course, acoustical isolation is obviously needed (by cushioning etc.) That would give everyone a good kick. Thanks! You're the best as always.

[@douglastaylor43]

I love your enthusiasm.

[@danyael777]

Thank you good Sirs for not only showing us the tech and it's outcomes but also the ingredients.^^

[@ministerRichardIanofKerr]

such a beautiful soul with a crop of solid gold, brave to echo schubert to the young and old.

[@Juttutin]

"Made in Germany" "US Zone" is that like 1946ish ??!! If so, COOL!

[@Kirk_Wood]

I use small zip lock baggies from the hobby store for mixing epoxy. Once mixed cut a corner of the baggie and squeeze it out. No mess because it's contained in the bag you throw away.

[@TechIngredients]

Agreed. I do that as well for larger volumes.

[@TwistedLogicGaming]

I would like to see some takes on creating infrasound, rotary subwoofer, or a large volume subwoofers ! Thanks for another great video !!

[@barthanes1]

Program a frequency generator to output a classical symphony. How good do they sound when a frequency generator replaces the strings? Or you could hook it to a keyboard and play stringed instruments like a piano.

[@BreeUSA]

Not trying to be an a-hole, but the holes in the top of the string instruments are called f-holes, not scrolls. The scroll is located above the peg box of a string instrument.

[@TechIngredients]

Thanks!

[@jonathanhughes380]

I am really excited for this live stream. Always a opportunity to learn more.

[@garrettmandujano2996]

I am really glad you guys made this KZbin channel

[@ke9tv]

Fun to watch - I haven't been to Concord in years! (I went to Dartmouth, so bummed around NH a fair amount back in the day. Recognized the state house immediately!)

[@MrTurnermason]

Great video. Keep up the good work. A thought I had was to spread spectrum resonate each cavity/instrument and measure the resonant frequencies. Then use an equalizer(s)/filter to divert the frequency range to the appropriate resonator. Much of which you have already done in a broadband sense. Each one of those instruments should have a resonate frequency and the corresponding octaves. I would think with 10 unique objects, you could have a very efficient full spectrum audio system (~300hz-20khz).

[@dedave]

I really hoped that you would start each demonstration by playing a string quartet piece and people would expect that your devices were playing the instruments. Then the instruments surprise the listener by starting to rap or some audio totally unexpected. Then you explain that the drivers are just audio transducers that use the instruments as sound radiators.

[@SaccoBelmonte]

I would engage on something like this but I know that stringed instruments, when driven with actuators like the Tonewood Amp, if you hit a resonance it can sound pretty bad and I can imagine also compromises the structural integrity of the instrument if the actuator is pretty strong. I think to make it really usable you need to use room calibration equipment, get tone sweep response and apply a correction curve.

[@JaenEngineering]

The real advantage of DML systems is when they're used in old concert halls and churches as no matter how reverberant the environment, you'll find they're incredibly resistant to feedback.

[@nikilragav]

Explain more. Why would they be resistant?

[@el1260]

did you experimented with the Soundpost in the Instrument? How does it change the sound when you remove it / put it back in? I am a Violinmaker from Swizerland...

[@TechIngredients]

It does. Removing it decreases the output efficiency and seems to make the instrument less vibrant. A frequency sweep would be necessary to quantify this as well as permitting optimization.

[@chadhumbert1791]

This channel has so much variety yet always consistently high quality 👏

[@lectrikdog]

they have one of these for Acoustic guitar, it makes chorus and reverb come out of the guitar - called the "Tonewood Amp" there are youtube videos demonstrating it!

[@alirezasohrabidabiri737]

Hi . Thank you for all you in Tech Ingredients. I enjoy all your videos. Could you send a link on where to buy the actuators?

[@joseffzeff9353]

You guys are awesome!!! Keep the good work!

[@TechIngredients]

Thank you! Will do!

[@winstonsmith1457]

Did you consider using these instruments as microphones too?

[@TechIngredients]

They work very well for that.

[@zaflowgalactic]

Also, have you considered playing violin cello and base though it to evoke the instruments' physics ghosts of sympathetic frequencies? The wood fibers may remember singing together those very same tunes!

[@WetDoggo]

Germany US-Zone might refer to the US occupied zone in Germany before BRD and DDR after ww2 so... 45 to 49 neat how the kid helped finding this out

[@LucianoVeryNiceHi]

Harold this is REALLY REALLY nice!!!! look at you, going out to the world and stuff, hanging out with people and marketinizing your channel

[@gary.richardson]

A large array of these in a movie theatre might make a good impact.

[@chopper5371]

I really thought I wouldn't be ok interested in this video. I was wrong. But I was wondering; could you put a Bass on a low tripod, connect with string the top of that Bass to the bottom of a Chello, and keep going upwards all the way to a violin, which would finally be connected to the ceiling? Kinda like a standing/floating speaker. How about a piano as a test piece? Thanks to you and your family for bringing some good into the world.

[@TechIngredients]

I'm pretty sure you could as long as the room had a high enough ceiling for clearance. The interaction of each instrument through the thin lines would be minimal.

[@WetDoggo]

is it possible to glue those actuators to some light and thin material shaped as a cone, to concentrate and direct the soundwaves into the room?

[@TechIngredients]

Maybe...

[@WetDoggo]

@@TechIngredients the joke is this would result in a "normal" speaker... But what you've been doing for the past few years is definitely more interesting

[@gorak9000]

That's called a regular speaker - you know, the things that have been around for more than 100 years

[@WetDoggo]

@@gorak9000 see my previous comment 😂

[@dalemonroe1779]

loved the interaction with the kids. This would be really cool in a themed bar/restaurant/coffee shop.

[@martinbowers852]

i'm goin to get a couple of those things and try it out, and go in search of some instruments, thank you for the idea, and i love your channel

[@tsomer07]

When you think about it, most of the sounds we here are reflected off of surfaces. That's why those systems sound so realistic despite the problems often cited with phase and time alignment. But sounds are also, if you will, pumped directly (like horns), or like Helmholtz type resonators (example the f-holes on a fiddle) into the air; piston style drivers and bass ports would be the most accurate for those I would expect. Using the instrument bodies allows both, but I still doubt they are ideal-- unless you get the original 32 track masters. I could see a system using both resonators and conventional speakers and horns. With a bit of tweaking I'd think the result would be ideal. The problems with the surface resonators noted above would "destructively enhance" the experience, since no actual musical performance can ever be acoustically pure. You can also appreciate the visual potential of such a system; we could hire sculptors to build them. This is awesome stuff and you have one of the best channels on KZbin, I wish you were my doc. Did you ever hear what Camille Paglia--an art critic and fan of Madonna said of her ? I paraphrase:' She shouldn't change anything; just keep being marvelous!'

[@weeb3277]

Would be cool if you could look into vortex tube/cooling. I've seen some examples online with atmospheric pressure.

[@DiamondDaveRoth]

I'm curious, if you're using a violin, a cello, and a bass, what are the optimal frequencies to set the crossovers?

[@TechIngredients]

There are no crossovers. We depend on each specific instrument's response to the same input frequencies.

[@supergeek1418]

U. S. Zone probably means post WW-II in the American Zone of West Berlin, thus almost 80 years old.

[@TechIngredients]

Correct

[@svatsideas]

38:40 what a nice voice

[@TechIngredients]

Thanks!

[@droko9]

Are youtube Premiere videos better for you in some way? From my end they are really annoying because I get excited seeing a new video from you in my sub feed only to be disappointed when I click it and the real video comes out in a day

[@Tunkkis]

35:47 Could it perhaps have been Titans of CNC? They have that bombastic style, but it works for them.

[@DHealey]

How about connecting them to a MIDI keyboard triggering sine waves (or another shape) and making a playable instrument?

[@TechIngredients]

Good idea

[@DHealey]

@@TechIngredients If it works and you want to make a sample library to share with your viewers get in touch. I'd like to work on it.

[@woosix7735]

we need to get lookmumnocomputer on the case

[@ke9tv]

Unstringing the violin has made the sound post drop out -which will indroduce a wolf since it's rattling around in there somewhere. I bet you'd get an even better sound leaving the neck under tension - perhaps muting the strings with some felt - and placing the exciter on the back of the instrument directly under the sound post.

[@TechIngredients]

It doesn't drop out, but it did require a small shift to wedge it tighter in the gap.

[@dmacrolens]

Premiere notices are spam. Upload your content when you're going to. The same people will still watch it and you won't fill up people's feeds with needless spam.

[@misterhat5823]

Agreed. Thumbs down for any premiere. They are a nuisance.

[@brawksolid6285]

I agree. It is somewhat irritating because KZbin does a poor job of clearly distinguishing the thumbnails of a video that will premiere later and a video that is already released. It is just a little, annoying time-waster while browsing for something to watch.

[@wadestanton]

I heard Marketing will soon mean the opposite good business promotion.

[@OneWheelDrive365]

Shut up! There are worst things in the world.

[@silverXnoise]

You should _demand_ a refund.

[@canepaper967]

Yamaha does this in one of their classical guitars, has an exciter inside the guitar you can use to add chorus, reverb etc.

[@TechIngredients]

Interesting

[@canepaper967]

@@TechIngredients "Yamaha Transacoustic CGTA"

[@kassiedreaneai7459]

Now you have me wondering how effective this type of setup might work if attached to the skin of various drums. Not to try to hear actual drum sounds but how well they might reproduce sound overall like the wood does. Very interesting stuff. Just as I accidentally came across this I remember coming across one of your videos using flat panels of wood and stuff in a room. Glad I came across this thank you.

[@nathanieljames7462]

For scenes with lost primary audio please caption the segment

[@homermorisson9135]

Hey buddy, with the Bass saying Germany and U.S. Zone, that means it's Date of Manufacture lies somewhere between the late 1950s and 1989, as "U.S. Zone" was part of the post WWII Germany where the allied Victors each held territories in Germany which where referred to as zones or sectors.

[@lordsqueak]

Kind of funny how your vocabulary and how you explain, keeps changing as you talk to different people.

[@ibexwarrior3838]

The typical varnish or shellac finishes on that family of instruments can react very negatively to alcohol. Naptha would be a safer choice.

[@TechIngredients]

Good point.

[@gorak9000]

Once you take the finger boards off, and are epoxying speaker drivers to them, I think the least of your worries is the varnish - they're pretty much destroyed already anyway

[@cajunfid]

Do all of the instruments still have their sound posts in them? Without strings on the instrument the post can have a tendency to fall if it isn't fitted properly but the post serves the purpose of transferring the vibrations from top to the back plate.

[@TechIngredients]

They all do.

[@Redspeciality]

Little do any of these people know they are in the presence of “the Main Presenter”, one of the best teachers alive today.

[@bmobert]

It's long been said that violins get better if they're played by an expert. They will also get better if you hook a speaker driver to the bridge and play violin music into it. I've tried it and it works.

[@jameslamb4573]

Nice doc. Really like to hear these play a piece of music composed for a string quartet/quintet. I'd like to see your "crossover network".

[@davidemmet7343]

I would love to see this used with a synthesizer with each instrument connected to the same synth instrument.

[@aaardvaaark]

I was hoping to hear some string section music played through them, maybe some chamber music / baroque stuff, to see if it recreates the sound of an actual string quartet or somesuch. I think the absence of the actual strings would mean you're missing the crisp component of the sound but probably would sound the same as the original instrument from a certain distance away.

[@gorak9000]

You know what else sounds like the original instrument? Regular speakers. I still am very doubtful that these DML speakers sound anywhere near as good as a good set of speakers does - and I don't mean the cheesy plastic sound bars and bose nonsense that most people buy, I mean like real upper to high end proper spears that were actually designed with sound reproduction in mind, not cost reduction. He's never done a video doing an double blind A-B comparison between any DML drivers and a good set of speakers in a properly acoustically treated room. The room acoustic treatments make a lot of difference too, no matter what speakers you have.

[@CaveyMoth]

My parents got an old guitar for cheap from a thrift store. I'm going to load it up. I want to try the Dayton exciter that has four separate voice coils. I feel like that could help make for an even wider frequency response. Once I get all that figured out, I'm going to turn this sucker into a bluetooth speaker.

[@kizi86]

those instrument speakers sounds awesome, listened to this video on my pair of martin logan sequel ii electrostatic speakers, and it sounds fabulous :)