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Author Topic: The Myth of the Accurate Microphone  (Read 2749 times)

klaus

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The Myth of the Accurate Microphone
« on: June 05, 2017, 12:49:52 pm »

Can we really make a distinction between “colored” and “accurate” microphones? Who decides what mic falls into what category, and on what basis?

Proponents invariably define an “accurate” mic as one that does not add to or take away from, or in any other way alter the musical event: what goes in comes back out, exactly and precisely.

I think the premise that such a microphone currently exists is false. "Accurate" means that no audible or measurable difference could ever be claimed between brands and models, because, by definition, any “accurate” mic you chose would sound exactly like the next, given the same polar pattern. 

The reality looks different. Some like the sound of one mic they believe is 'accurate'. Others like the sound of a different mic, with the same claim of accuracy. But if there is a 'sound' (i.e. color), which one then is accurate?

It’s frustrating to read discussions of the term 'accurate' in forum posts, because quasi-scientific arguments are used to prove something that, in my opinion, is not currently provable, given the available (and rather primitive) parameters available to quantify data related to sound.

End (or start) of discussion...

Update: post #50 is brilliant, and I have copied it here, for those who do not have the time or patience to read all the others:

"Good sound" is not (for me) an objective that gets completed, but rather a lifelong pursuit of a feeling. I hope that each record I make is better (read: more emotionally-resonant) than the last, for the rest of my career. I doubt I will ever feel like that mission has been wholly and indisputably accomplished. In that sense, there is no "ballpark."

And much like there's no objective metric to determine the "best guitar player," I feel there's no objective metric (or set of metrics) that can meaningfully determine the "best (read: 'most accurate') microphone."

Because things which can be measured are almost always relatively unimportant in the context of work designed foremost to move someone emotionally.

For example: There are many people who can jump higher, run faster, have higher IQs, and have more symmetrical facial features than I. My wife may even know some of those people, but she loves me. Why? Emotion is profoundly illogical. Those objective metrics have a laughably-poor correlation to why my wife might've fallen in love with me. Broadly speaking, to contrive to explain an emotional response in terms of available objective metrics is folly. For one thing, it opens us up to the cognitive biases of anchoring/focalism, the availability heuristic, ambiguity effect and the base-rate fallacy, among others. Simply put: most of what moves us emotionally cannot be measured, and that puts us at risk of over-emphasizing things which can, when making judgments.

And so it is with microphones. If I listen to a recording of a great vocalist on a great U47 and instantly feel an emotional connection to the performance--more than the same performance into a microphone that measures quieter, flatter, more extended-- then which do I choose?

Do I choose the person with the higher IQ who runs faster? Or do I choose the partner with whom I've fallen in love?

Not everything that matters can be justified through empirical means. This is especially so in matters of emotion--and my goal with creating or capturing music is always to elicit within the listener an emotional response.


Brad Allen Williams

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Klaus Heyne
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Jim Williams

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Re: The Myth of the Accurate Microphone
« Reply #1 on: June 06, 2017, 11:37:40 am »

Until a microphone can duplicate the locational sensing of the human ear none of them are even remotely accurate. A person with only one working ear can point and determine a sound's location easily in a 360 degree field.

At this point of microphone design we are at the same point as the romantic painters were in the 17th century before the advent of modern photography. Yes, those paintings are very emotionally pleasing to look at but are not in any sense accurate.
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soapfoot

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Re: The Myth of the Accurate Microphone
« Reply #2 on: June 13, 2017, 11:34:50 am »

Even if you isolate one variable-- say "frequency response"-- invariably, other variables creep in.

One microphone might be "perfectly flat" in an anechoic chamber directly on-axis at a distance of 1m, but what happens when you're 90 degrees off-axis? What happens when you're 10 cm away, or 20m away?
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #3 on: August 01, 2017, 12:32:51 am »

Well like any other measuring tool, mics are accurate within certain tolerances and limits, but the key is understanding those limits to produce very accurate results.

I suspect at least some of the distrust of mics as accurate comes from ignorance rather than knowledge. In the field of  acoustic measurement, there have been extraordinarily accurate mics around, such as from B and K, for many decades. Of course there are trade offs, such as frequency response vs S/N, and directionality vs proximity effect and polar pattern linearity, but the skilled person knows these limitations and carefully works within them.

Tim 
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klaus

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Re: The Myth of the Accurate Microphone
« Reply #4 on: August 01, 2017, 03:30:15 am »

If what you say were correct, why don't more people use B&K/DPA mics? Their static specs are certainly hard to beat: s/n and frequency linearity are exemplary.
Yet, they are not considered "musical" by most artists, music engineers and producers, and rarely find usage in recording studios.

What may be missing here?
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Klaus Heyne
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #5 on: August 01, 2017, 04:49:27 am »

Part of what's missing is perhaps a common understanding of what we mean by terms.

So what makes  a microphone  "musical" or "non musical"? What is meant by these terms in relation to mics or indeed any audio gear?

Tim

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klaus

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Re: The Myth of the Accurate Microphone
« Reply #6 on: August 01, 2017, 10:32:33 am »

I already stated in my opening post that the term "accurate" is problematic, judging from the success, or lack of, of mics that claim to be accurate.

So, if such mic does not really exist, maybe a term like "musical" comes closer to what we ultimately envision* - a mic that delivers music's emotional content to the listener, connecting in ways "accurate" mics seem not to be able to.

* maybe I am in the minority here. But I still try to engage my right brain hemisphere when listening to music, rather than intellectually analyzing what I hear in the moment I hear it.
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Klaus Heyne
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #7 on: August 01, 2017, 06:42:55 pm »

People are musical - some more than others. But microphones? Speaker cables?

 
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soapfoot

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Re: The Myth of the Accurate Microphone
« Reply #8 on: August 02, 2017, 10:54:28 am »

People are musical - some more than others. But microphones? Speaker cables?

The commonly-measured factors do matter. But I think it's folly to assume we can derive the gestalt of a device by these factors alone.

Two cars can share the same top speed, horsepower and torque, but still offer different driving experiences. One might be enjoyable to drive while the other is less so, and the specifications alone would likely struggle to explain why.

It's important, I think, to acknowledge that microphones aren't strictly documentarian-- they are, in some sense, a tool for creating art (just like guitars or pianos). This remains true even when recording music in the most literal way.

If I'm recording a classical piano recital, my goal is to give to the listener the sense, as near as possible, that they're in the hall with the performer enjoying the concert in person. Since recording technology is still so far from replicating live performance in an indistinguishable manner, sometimes the non-literal is relied upon to help bring the illusion closer to the subjective ideal. This is where recording becomes an art that relies upon science, rather than science, strictly speaking.

And in art--even that art which relies upon science--a subjective impression (i.e. "this microphone sounds more musical to me") is certainly admissible. In fact, I'd argue that a keen grasp of the subjective is a big part of what separates a "skilled and experienced expert" from a "person with some training and equipment."
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klaus

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Re: The Myth of the Accurate Microphone
« Reply #9 on: August 02, 2017, 12:46:37 pm »

Well said, and to the point. Thanks!
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Klaus Heyne
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #10 on: August 03, 2017, 12:38:58 am »


...And in art--even that art which relies upon science--a subjective impression (i.e. "this microphone sounds more musical to me") is certainly admissible.

 Sure it's admissible but to me an isolated comment like "this microphone sounds more musical to me" communicates merely that "I like what I'm hearing".

BTW enjoyed your guitar playing on "More than you know"  "Steppin' Out" and "Sly".

Tim
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klaus

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Re: The Myth of the Accurate Microphone
« Reply #11 on: August 03, 2017, 03:46:16 am »

Communicating "merely" that you like what you're hearing- not enough?
You think there's more? If so, what is it and what mic transports it?
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Klaus Heyne
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #12 on: August 03, 2017, 04:21:37 am »

You mentioned musicians, producers, engineers considering flat mics - and you specifically mentioned B & K and DPA mics - not "musical".
But they would probably happily use a KM184 in certain situations where neutrality is considered important and the acoustics allow. As I understand it, the KM184's response  would be similar to that of a 1/2" omni  B & K measurement mic. What would be the difference in your opinion?

 
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BluegrassDan

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Re: The Myth of the Accurate Microphone
« Reply #13 on: September 03, 2017, 06:08:04 pm »

Who wants to hear a singer's every slobber, lip smack, and snot bubble afforded by an "accurate" mic and/or "transparent" preamp? Microphones are best when they represent the capture of a musical performance in a pleasing way.
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Timtape

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Re: The Myth of the Accurate Microphone
« Reply #14 on: September 04, 2017, 09:36:11 am »

Is  there a mic out there which is insensitive to "slobbers",  "lip smacks" and "snot bubbles" but let all the "musicality" through? Now that's one "intelligent" microphone.  What's its make and model number?
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