Moulton Laboratories
the art and science of sound
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     Oct 21, 2014
I am in a Mixing class and we just used the Golde Ears training. We're trying to find a recording of Signs Of Life. Can't find it anywhere on the internet.
Brandon MB, Canada     Aug 11, 2014
Thank you for your brilliant website materials and publications! Now comes the hard part: finding a Canadian seller from whom to purchase your products.

Best regards,
Scott Howarth
Scott Howarth 
GOA , INDIA     Apr 08, 2014
Eugene, Oregon     Feb 19, 2014
Dear Dave,

I don't know if you'll remember me but I've thought about you over the years and appreciate the way you helped guide me towards the life I have today. I arrived at SUNY Fredonia at age 17 in 1983 with a great desire to be a recording engineer. Thanks to the schools old policy I had to learn to read music and play a classical instrument and for me that meant classical guitar. I remember like it was yesterday when you suggested that deep down I was really a musician. In 1988 I received a full scholarship in classical guitar at Arizona State. I later became friends and recorded with Mason Williams (Classical Gas). My years at Fredonia hanging around the studio with your tone meister students helped me to get an understanding of recording after all, and I know it was you who created that atmosphere. I wish to express my heartfelt thanks. I'd also like to send you a couple of mp3's of my music. Over the years I've made some interesting recordings that I think you'll enjoy.

Last year I made it back to Fredonia and gave a concert in their new concert hall. Jim Piorkowski still teaches there and we've become close friends so he agreed to have me perform.

I hope to hear from you.


Craig Einhorn
Craig Einhorn 
Phoenix     Jan 29, 2014
Dear Dave

I have a mystery. I am a Broadcast Engineer, have been for decades. I have a good working understanding of dialnorm, dynrng, compr, Leq, LKFS, BS.1770, etc. If I transcode a commercial at -27 instead of -24 through FlipFactory conforming to BS.1770 my understanding is that FF physically resets the dialog level to -27 (from wherever it was measured), and stamps dialnorm metadata at -27. If this is inserted into a program stream running at -24, what happens at the customer STB when the commercial comes along? Does the viewer get treated to a level 3 dB lower? or higher? or the same as program level?
Tom Lewis 
Germany     Sep 19, 2013
Dear Dave,
it's now a good 10 years since I've listened to your Golden Ears CD's (as part of my audio engineer training at SAE Frankfurt), but I can still hear them, like auditory hallucinations. Especially one snippet keeps ringing in my head: it's that song excerpt, where one line goes "and Jesus owns a mobile home next door."
You encourage the users to buy the music of the bands you use, but, though searching for years, I couldn't find this one. You'd do me a great favour if you could give me a hint where to go looking.
Happy New Ears
& all the best
Hein Schoer 
Atlanta, GA USA     May 10, 2013
Hi Dave,
I am a first semester student at SAE Institute-Atlanta. Your Golden Ears and Playback Platinum are a part of the foundational requirements here at my school. I must say that you have opened up a whole new world to me in regards to critical listening. Mixing and what not is a ways up the road for me in this training, but I feel that your products have already 'pulled my collar' to the deep intricacies involved in mixing a quality piece of work. I look forward to going into that area of my training and am confident that your expertise has help me be better prepared for what is ahead.
Thanks and many Blessings, multiplied sir!!!
Gerel McIntosh 
Boston, MA     Feb 26, 2013
It was an absolute pleasure meeting you in our internship & portfolio class yesterday. I learned so much from your presentation and admire all of the incredible accomplishments you have made. I can only hope that one day I will be equally as successful. I hope to continue to follow my dreams and pursue my interests, as you have done. I hope you are doing well, and I will be in contact soon. I would love to talk more about your work in acoustics and the audio field in general. Thank you for all of your inspiration. Best wishes! (And I hope you enjoyed the coffee!)

Matt Almquist
Matt Almquist 
Pittsburgh, PA     Feb 22, 2013
I've been meaning to hunt you down for the past couple of months and finally found a slow Friday afternoon in the office to do so. I think of you every day these days, as I am the proud owner of an Audi A7 with the B&O system. I could never have imagined owning those tweeters back at Dondisound in '78! I often find myself sitting in the driveway waiting until the next track is done before heading in the house, the B&O system is that good.
Anyway, life is also good, Dan Ferraro says "hello!" and drop me a line if you have a moment to spare.
Very best regards,
Mark Valenti
Mark Valenti 
Chesaning, Michigan     Feb 02, 2013
I'm Tim Woycik, and if you are the Dave Moulton that taught music at Saugerties High School circa 1972, then I was one of your students. I was out east to visit family recently, saw a couple of classmates, and started strolling down memory lane. Tonight we dug out the old yearbook and started thinking about teachers who had made an impact in my life. A little computer research brings me to this site. Hopefully, you are who I think you are. Would love to hear from you. Thanks for the musical memories, synthesizers, and a trip to NYC to see Jesus Christ Superstar!
It's exciting to see where your journey has led! Congrats!
Tim Woycik
Tim Woycik 
New York, NY     Jan 15, 2013
Hi Dave,

Great to see your website - Looks great. I know i'm late to the party smile
I find myself surround by young audio students making the transition into pro-audio and i still find your Golden Ears collection to be the best way to judge their current skill level and help them improve on their critical listening. I'm always impressed when they come in already having your process down cold.

I remember - all those years ago - you creating those early listening tests for us at Suny Fredonia Tonemeister Studios. Funny thing was, even if you weren't taking it seriously, you simply got better by accident.

I hope you are enjoying your sports car - sure beats working !

All the Best, Dave


Scott Hull
Masterdisk Mastering Studios
Scott Hull 
United States     Dec 06, 2012
DAVE MOULTON!!!!!!!! I miss those Dondisound days! You are the best! I hope all is well with you! Pat
Patrick O'Leary 
Groton, MA     Dec 01, 2012
Hi Rob!

It's great to hear from you – glad you're still having fun with audio. Of all the people who probably don't need the CALM Act, you'd be right up there. Good luck with LKFS, though.

Keep smiling, and If you ever get up to Boston, let me know.

Best regards,

Dave Moulton 
Long Island, NY     Nov 30, 2012
So the chief comes into my room after ten days off (love the freelance schedule) and tells me there are some acronyms I need to familiarize myself with. LKFS, CALM. What?
We discussed some potential gear and decided I needed to google CALM and get some more info. The first article I find is written by none other than my audio guru from SUNY Fredonia, Dave Moulton! What a nice surprise. And, of course, the article was very helpful.
Since graduating in 1981 I have managed to stay in the business, first in music, then a little teaching then since the mid eighties in television.
I mix the Maury, Jerry Springer, Steve Wilkos and Trish Goddard shows here in Stamford CT for NBCUniversal.
I can imagine that maybe opera is the only thing more dynamic than daytime whispering/screaming talk.
CALM is of great interest to me.
Glad to find you Dave! You teached me real good!
Rob Alexander 
Hammonton, NJ     Sep 25, 2012
Hi Dave-

Just writing to say thanks for the recording enlightenment, both in your articles in Recording and dating back to the '70s when you spent a January term at Gettysburg College with your 4-track, ElectroComp synth and analog sequencer. That brief exposure has cost me an unseemly amount of money over the years, but that's my weakness, no fault of yours.

The 4-track "planetarium piece" improv that I played while you imbibed and engineered is still on my iPod; though the original quad planetarium experience is only a distant memory, it might have inspired my continuing obsession with surround mixes, so on second thought I'm going to tell my wife that both my synth and surround habits are your fault.

So consider that a heads up, and thanks again.

Warren Ogden 
San Francisco     Jul 17, 2012
Hi Dave.

I've enjoyed your recent "CALM Act" measurement article in TV Technology just now, and I think there may be a few issues to clarify.

As I tell operators around the world, the single most important thing they need to do is measure their signal off air, since you don't know where you need to go until you know where you are.

In your article, you relay a portion of a letter from Mr. Kohn in Montgomery, AL, who I believe unnecessarily complicates the subject a bit. For DTV in the US, the only thing that a broadcaster needs to do is to ensure that the dialnorm value within the AC3 data stream matches the measured level of speech (or the average level of the program as a whole) within the program. If that dialnorm value matches the measured value of the program, all Dolby processing within the home system will be performed properly, irrespecfive of the presentation settings (i.e. 2/0, 3/2L, PL decode, etc.). In most cases, MSOs (like DirecTV) are simply turning around local stations' signals, so the burden of making sure the dialnorm value matches the content is still on the local broadcaster.

Of course, legacy analog tiers in cable may have some issues due to mis-settings in the edge device, but these instances are relatively contained in my experience.

One last point: ITU BS.1770-1 has been replaced by BS.1770-2, which adds a relative gate, a silence gate and a 75% block overlap. A-85 supports the "most current version" of the ITU standard, so broadcasters should be looking to migrate their measurment approach to the ITU-2 method.

Best regards,
Mike Babbitt 
Chicago area     Jul 17, 2012
Finding your website made my day!

I'm a fledling in digital recording for voice science research.

One question... when I look at a frequency response graph, does it describe the way the mic renders the fundamental frequency of a vocalization at a certain pitch or does it describe the way the mic renders the individual harmonics of the vocalized pitch? I'm inclined to guess the later - thinking that recording devices treat all component of an envelope as if they were the only component. I'll put this another way. You probably have already guessed that I use spectrographic analysis and I am wondering whether a frequency response graph tells me that a fundamental frequency in a certain range is rendered differently than some partial of the produced sound several thousand Hz higher.
Tom Brotz 
Schenectady, NY     May 20, 2012
Dave, great seeing you in cyberspace! I'm so happy all that ear training I went through at Fredonia is finally coming to use in my humble and lovable studio here in Niskayuna. I went back to the alma mater recently and touched base with the SRT facilities, and current instructor buddy John Caruso. Just one question(complaint, if you will) though- isn't my super-mentor and mastering engineer Bob Ludwig known as the "man with the golden ears"? Warmly, John Norton
John C. Norton 
Brandon, MB, Canada     Apr 18, 2012
I'm really enjoying your site and your writing - fell into it last night [welcome a few more visitors thanks to some pages shared via facelurk] and I'm still studying.

I have one complaint, though:
You have such a great archive! It's a shame that your articles that may have originally run in a series often don't link to each other. It's frustrating reaching the bottom of the page and seeing "more on this next time" without a link to the next time in question.

Search is functional, but this is the web - please consider putting some links between your works for continuity's sake, not to mention to save your readers the time it takes to find the next piece [which isn't always obvious and may not even be found with a search].

Otherwise - really enjoying the site.

Derek G in Canada
Derek Gunnlaugson 
Athens, Georgia     Feb 24, 2012

You frequently invite your readers to complain to you about anything here on your website, so I've come to voice a complaint - you're far too awesome and generous with your knowledge.

But seriously, I deeply appreciate your insight. I've been self-studying audio for a few years now, and yours is the clearest and most helpful information I've come across. It's beautifully written and rigorously thought out. In particular, I've come to admire the way you cut to the quick of an issue - there's no fluff and no tired repetition of things I've heard a million times before. In fact, there's info here (e.g., your discussion of phase shift and polarity reversal) that I haven't heard even intimated anywhere else online.

Thank you much,


PS - I'm really glad you mention Total Recording on here; now that I know you've written a whole book on this stuff, it's on my short list of things to order.
Thomas Bailey 
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