ABS: What Is The Trouble With Measurements.


Found this interesting and puts some things in perspective.

I know this can be a very emotional topic here and I see it as relevant. 

Measurements do play a part in my decision process.

 

juanmanuelfangioii

Same with my driving speed. Don't consult the odometer...ever!

Me either, I use the speedometer. Just like audio, you have to have the right measurement/equipment for what you are trying to do. 

 

@russ69 Good catch! Actually, I'm a fan of watching the odometer while driving. I'll be darned if I'm going to miss it turning from 99,999 to 100,000!

The author says that the "trouble" with measurements is that their meaning is difficult to convey to their readership.  That's all.  So, they prefer adjectives (words that describe).

Measurements are one way of communicating knowledge. Words are another. Both have their virtues and limitations. So, philosophically, TAS.. doesn’t really have a preference for one over the other....We choose to focus on words because our experience is that they are one level closer to how readers think about sound than measurements are. 

One must end such a profound philosophical and patronising statement about their readers with a preposition.

There is standard  design engineering measures of the gear in the absolute or in the ideal,  out of any embeddings working specific dimensions...

The article refer to the way this set of electrical measures of a piece of gear design with measuring tools in a neutral environment to isolate each factors means something or not, in words, related to a specific acoustic context...The article give an interesting exemple about the way some contextual information  help to interpret some restricted  electrical measures ....

 

The general  necessary context is what i called the 3 (4 like the 3 musketerers) working embedding dimensions...

Electrical noise floor control, mechanical vibration control and the two most important last one : acoustic and the psycho-acoustic controls which are necessary in small room and very transformative...

The acoustic set of measures is not ONLY a fixed set of measures to begin with like the design piece of gear final measures, because your small room must be tuned by your ears for your ears, it is not a big hall, this set of ongoing acoustic measures will ve a tuning process in time...And in this tuning acoustic process you learn doing it how to tune your own ear/brain to the speaker/room and for a specific set of gear...

In acoustic for example the ratio listener envelopment/ apparent source width, or LEV/ASW, cannot be improved without installing acoustic devices to improve the timing delays between reflections coming from front and behind and lateral one... To do this without affecting negatively other acoustic parameters like localization and timbre ask for a measuring listening experiment ongoing process in many phases...

Contrary to the opinion of many, the sound of the recording trade-off set of choices by a recording engineer is not so much reproduced but translated from these recording acoustic choices from the engineer, in the acoustic specific language of your room via measuring tuning process and for each of your ear...

Then here measures and acoustic concepts(words) must be correlated..

A good speakers/room control will not make a bad dac or bad amplifier good one for sure, but will help to optimize their working by compensation of the room response to the speakers and to the system behind it...

There is also a set of psycho-acoustic possible controls in small room to improve the intimacy of the experience and make any small room better than most headphones...

Buy relatively good gear first, after that create your own set of listening experiments , correlating measures of room/speakers properties measured by listening experiment and with basic device ( spl device etc) you will be able to describe in words and simple acoustic concept this ongoing transformative process under your own control...

 

 

 

 

My way forward has been mainly by listening. Also considering good measurements when available.