What Characteristic Strikes You First About Un-amplified Music?


Folks,

If we were to all just list the aspects of live acoustic sounds that it would be nice to have re-created in our system, I’m sure we could come to much (though not total) agreement that live sound has those characteristics. But the list I’m looking for is one of order: what characteristics seem primary to your own perception?

So with this in mind, the question is: when you actually hear a live person singing or speaking, or a live instrument being played - e.g. sax, acoustic guitar, drums, violin, etc - and compare it to what you are used to in reproduced sound, what aspect of the live sound impresses you most?

Today when I went for lunch there was a guy playing tenor sax on the sidewalk. He was playing in the quiet Stan Getz style. As I often do, I stopped, closed my eyes and pondered "what is it that, with eyes closed, I’m hearing that I just don’t seem to hear when I’m in front of an audio system, eyes, closed, with the same instrument playing?"

And it’s almost always the same thing that sticks out to me: How LARGE the sound is of the real instrument. Even played at really quiet levels, the sax had a presence that was just BIG, and full, and rich, and just expanded to fill the surroundings so easily. So much body to the sound. In comparison, saxophone through the majority of sound systems is like a diminished, squeezed down, reductive toy-version of the real thing.

I experience the same when encountering, say, someone playing violin. It just sounds so much bigger, fuller, richer, thicker than their reproduced counterparts. Even when the player moves to the upper strings and plays the higher notes, the sound does not thin-out and become wiry as it does on a sound-system, it remains big, room filling, bold.

This is why, for me, I’m always impressed when I hear a speaker system that gives some of that thickness and richness to the sound of voices and instruments - for instance how I perceive this quality in certain wide-baffle bigger box speakers. (Though that quality isn’t the whole shooting match, which is why that isn’t my only criteria).

It’s also why I’ve gravitated to tube amps that I perceive to add that extra bit of body, roundness, richness. (I have Conrad Johnson tube amps). Even a nudge in the direction of added body is welcome.

So that’s the first thing that strikes me - it just hits me whether I’m looking for it or not. Others on the list of live voice/instruments can depend more on what I’m concentrating on. One big one is a timbral/organic quality. I often close my eyes when someone is talking nearby and listen to the quality of their voice. The thing that hits me right off is "that just doesn’t sound like any amplified voice I’ve heard." There is an immediately recognizable "human, organic" timbre to the voice that seems distinct from the electronic recreations through speakers - one is made of flesh and blood, the other of electronics, speaker drivers, etc.

Other aspects that hit me about live instruments are: richness in timbral complexity and ’effortless’ detail, in the sense that detail seems so smooth, just ’there to be heard into as deeply in to it as I want to listen, but not hyped." There is a rainbow of timbral complexity to a live band or orchestra that is homogenized in reproduced music. Then there is the solidity and acoustic "presence" - the "thereness" of a real voice or instrument moving acoustic energy in the room so you just perceive a solid object making the sound. This is different from the more airy, see-through imaging in many sound systems, and why I really desire density and palpability in my sound system.

 And...of course...dynamics. I guess that one seems so obvious I left it for last, but we all have the experience of hearing a drum set being played and just instantly recognizing the life-force behind it, that you typically don’t get in reproduced sound.

So, back to my original question of what characteristics of live voices and instruments stand out to you, in comparison to most reproduced sound?


prof

Showing 1 response by soix

I've actually thought a lot about this too.  I play in a band so I've had some time to reconcile what I hear when we play live versus a good recording of a live performance.  Obviously the quality of the recording will make a huge difference, so let's just take that as a given along with the fact that electronics and listening rooms play a huge roll in what we hear as well.  I'm focusing on speakers here mainly because ultimately that's what couples the music to the space we're listening in.  A couple of my observations:

- Live, unamplified instruments emit sound in all directions -- front, back, up, down, etc. -- but not necessarily at the same volume level in all directions.  These sounds continue to expand into space and mix together into the "ether" of the room in a complex fashion along with reflecting off the room boundaries and the things in it. 

- The majority of dynamic cone box speakers primarily emit sound in a forward direction.  Some have a rear-facing driver or two.  Then there are dipole planar, ribbon, dynamic cone designs that mostly propel sound both forward and backward at similar volume levels.  Then there are a few omnidirectional designs that send out sound in all directions. 

My thoughts have mainly focused on how these two observations come together as sound reproduction in a listening room.  I find traditional cone speakers can do a good job of capturing the heft and dynamics of a live performance, and those with rear-firing driver(s) can produce an added sense of spatiousness and atmosphere.  But these designs (except for a larger line array types) don't always capture the size and scale of a performance, and they often portray individual instruments, vocals, etc. in a very well-defined but relatively small size.  Like some mentioned above, this is not how instruments image in a live setting -- probably because their sound continues to radiate outward in all directions. 

The dipole planar and ribbon designs, conversely, can do a good job capturing scale and project individual images in a larger way like in a live setting, but they often cannot project the full dynamic force and heft that cone drivers seem to do better.

I haven't heard too many dipole cone speakers, but I'd guess this design falls somewhere between the other two by adding some heft but lacking some scale.  And I've only heard one omnipolar design at a show, and it was an uber-expensive MBL.  It sounded great.  Maybe the closest thing I've heard to a live performance, but it's an exceedingly small sample. 

I'm not sure we'll ever fully capture the total experience of a true live and unamplified performance.  But at the same time, I marvel at how much of it good systems can capture and portray.  I once read that a theoretically perfect speaker driver design would be like some plasmatic orb, which kinda makes sense and maybe why the MBLs sounded like they did.  

Where I am currently given all this?  Hell I don't know.  I was 90% sure I'd end up with Joseph Audio, Vandersteen, or ProAc speakers -- all of which I love -- for a long time.  Now, largely because of this "live" sound issue I'm thinking more along the lines of something like a Nola (not sure the omnis I can afford will suffice).  But here's one thing I'm 100% sure of -- whatever speakers I ultimately choose, I will also have at least two high-quality subwoofers.  Having heard good, properly set up subs in several systems, I find them to provide a good dose of the "ether" of a live room that I find absolutely essential.  With the subs disengaged, the sound goes flat and a lot of the "liveness" disappears.  Anyway, I've gone on way too long.  Sorry.  Nice thread @prof