I’ve often wondered why the FM mode of my analogue synth doesn’t sound the same as even a 2-op patch, you’ve made it super clear! Also wow, people weren’t kidding when they said simply changing which operators are audible takes a few minutes in a traditional DX synth - in my Opsix I would’ve slid the faders for those operators down in two seconds! Of course I’d read it was an easier and faster user interface but I hadn’t looked into just how much that is true. Thanks!

THANK YOU. I'm currently writing a manual for a DAW and was baffled by the FM in a synth in it because I've pretty much only had experience with linear FM and had absolutely no idea what it was doing. It is INSANE that I've never heard of this distinction in FM types before. There seems to be shockingly little discussion about it online.

Best explanation of this subject on the net. Big up Keith!

FM is so weird. Musically, technically, everything-ly. This was great. I hope you can do a video with a Digitone one day.

I knew there was a difference between linear and exponential FM but, honestly, only because everyone talked about it. And of course I could hear the difference between "analog FM" and "digital FM". But never really understood the concept. Now I do, thank you for making this vid and compliments for your great explanation!

Great video Keith! Keep up the good work!

Best video on FM synthesis ever. Thank you!

thanks for this knowledge..great vid..hope for more.

I like the pace of your videos. Also, this one is very informative - thanks for posting it!

Fantastic video. Such a simple and direct explanation. Thank you!

Best explanation on exponential fm on KZfaq. Tried many vids and struggled. Thanks so much!

Great video, Keith. Keep these coming !

i love this guy, he looks like he stole all the infinity stones. Thankfully some people are geeks on this subject and they give us "big guns" like he say. thanks for the video, very interesting.

Thanks, Keith, that was really informative and answered the questions I had regarding the difference between the two types of FM.

so important to understand and demystify, you are a great communicator.

Just found u channel. Great stuff brother.

Это лучшее разъяснение из всех, какие я когда-либо встречал! Спасибо, Keith! 👍👍👍

Amazing, very clear & no bs explanation... thanks!

Fascinating. Brilliantly explained.

Thank you so much for that explanation! Realised i've been going about it all wrong trying to build fm in puredata and applied this theory and its sounds worlds beyond now! BRILLIANT!

Thanks for making this video. It was a great explanation of the difference between exponential and linear FM.

I really appreciate your FM videos.

Keith! Excellent vid thank you! I'm a DSI Pro 2 owner and just found out about the Linear FM update for the Pro 2 firmware and I needed to know what the hell that even meant!

Your level of knowledge is a very enviable thing. I can’t wait to watch more!!

Best demonstration ever. I learned something. I love it.

This is a fantastic video, thank you! I followed along on the DX100. Interesting how the patch sounds different.

Very insightful video!

Very clear explanations - thank you. Very well designed video.

This actually made things clearer. Thanks.

Very interesting. Thanks for this easy to follow and understand video.

excellent concepts thanks for this

Great! I've always wondered what the difference was !! Thanks mate :)

simply Wonderful

at last i understand FM! ive been patching my moog dfam's pitch envelope into my mother-32's linear fm input to create a pseudo sidechain effect - whenever a kick drum hits, the frequency of the mother 32 (for example in a bassline) bends upwards a little depending on how much of the envelope i let through. it gets even better when putting the envelope through an inverter so that the linear fm causes the frequency to bend downwards, out of audible range. thank you for this great video. i look forward to more of your videos.

You are an awesome teacher!

Best you tube video I've seen in ages. Thanks :) great explanation. The mist has cleared.

Great explanation and demonstration. I hit subscribe about a minute and a half in. Checking out your other videos now.

For someone studying eurorack modular synthesis this is a very nice inspiring video. Be it someone just starting or as a reminder review of a seasoned person. Thank you.

No nonsense. Seriously wholesome.

Great video! Looking forward to more hands on exporation on fm synthesis.

Underrated video man. Great job, liked!

This was very helpful for making identifying FM types!

Very lightning explanation man. Thank You!

awesome vid Keith

Thank you. Great video :) Made perfect sense. Knowledge increased ✔

Amazingly clear and logic explanation. Best, by far. Congratulations, keep on creating amazing content!

Very helpful explanation, thanks.

Great explanation.

great explanation, thanks keith!

Great explanation. Thanks!

Great video

Thanks a bunch! Great Video!

Nice explanation, thanks 👍

Thanks so much, this video was awesome!

wonderful video and extremely clear explanation, thank you ☺️

Well explained 👍

easy to follow, very informative

Well explained and informative video

Great video!

great explanation! Thanks.

Nice job man, thank you for the video

Great Job

Thanks. Still not sure whether I want to tackle FM but you've definitely made it more approachable.

Great video, Thank you!

great video(s).

Hey! The Edirol UA-25! Nice to see one more around

This synthesis method was also used in some arcade, console and PC videogames in form of the YM2151, YM2612 or YM3812 yamaha sound chips used during 80s and 90s. They bring me such good memories of my childhood...

finally someone who knowns

Hey thanks man, this is very clear ...

thank you a lot, very informative video

Thank you very much Keith

thanks, very clear and informative!

I would have to agree with the Lumberjack man

more instruction classes on fm please!!!!! basic string/pads etc - these are great videos!

Excellent. Thanks!

LOVED IT

Great vid

Thanks this was really informative. The sound at the beginning of the video was a bit odd for me, but the explanation was crystal clear. Thanks again!!...

This video topic/title is why I just sent a Subscription to your Channel ;)

I just bought a Yamaha TX-802, and I'd love to watch more videos like this to explain FM synthesis. Thank you! This was really great.

That was very well explained, thank you! Could you shed some light on through-zero FM? What it is, how to achieve it and how it sounds different from regular linear FM?

Very useful. Thank you.

Thanks Keith,

Great vid I've been looking to find. Could you plz post other vids to explain other types of algorithms?

Awesome fm sound effects are alway's complex to make but worth it.

Finally, I get it!! Thank you

nice explainations

aweasome thanks

Thank you. Just, Thank you.

Hey thank you for the information, i cleared my doubts respect this theme.

Awesome vid, thx

really like ur vid keith

great video, thank you

Thank you!

v informative:)

Thanks so much!

Great video! you did a great job clarifying the differences between lin and exp FM. I haven't ever bothered to do too much in the way of FM, but I tried some on my modular. Unfortunately the analog oscillators weren't perfect enough to get sounds similar to what you got on the DX11. Got me tempted to pick up a similar keyboard just to explore more along the lines of FM. Unfortunately most FM synths seem to have poor interfaces.

Ok , got it ! Now going back to my DX7 ll with Grey Matter E ! Thanks .

Great video - the DX7 actually uses Phase Modulation (PM) because it has a carrier wave that is used to alter the phase angle between them. Although PM is an intermediate step of achieving FM, FM is probably more just a marketing term by Yamaha. Either PM or FM are really just special cases of quadrature amplitude modulation (QAM) (mathematically speaking). I often joke by asking people how their QAM synth is going - you get some funny looks :) Keep it up - maybe do a video on Ring Modulators .... this is right up the same alleyway!

Great!