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Join date : 2009-09-21

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PostSubject: Signal / Whole Philosophy   Signal / Whole Philosophy Icon_minitimeThu Jun 20, 2013 5:47 pm

You know one of the greatest temptations is to keep this hobby in pieces instead of the whole. Everyone knows that the signal has to be able to be played, and amplified and then introduced to a space. This has been turned it to the ultimate sellable system. But I see things a lot different than this. I see the most important part as the signal, electrical flow, mechanical vibrations, sound waves and pressure.

My view is a completely different hobby that takes it's eye off of the packaging and puts it's eye on performance. In the end it can still look cool, but be more functional, able to deliver what the old school can only talk about.

When your system starts to be set free and the speaker and the room begin to act as one the first thing you notice is "space". What was in a box is starting to be let loose. Not only is this audible by the sound being bigger but there is also a lot more information to the sound. In all of my writings you'll hear me talk about information. This is because we limit ourselves in the amount of music we hear. I can guarantee that in most involved recordings you are only hearing a fraction of the info produced. The more we stay in this little box the less information we are getting. When you start to hear the room become the speaker and the speaker the room things change in a big way.

Do a test.

Can you take an object into your listening room (big or small) and hear it change the sound? If it makes next to no difference or a slight one, then you know that your speaker/room relationship has a ways to go. The serious listener after the highest high of listening must let go of the living room and embrace the fact that the room and loudspeaker are really one. The more you make the speaker into only part of the sound excepting that the real sound is the rooms waves and pressure, and you start to make the speaker apart of this passing of the signal the easier your going to get to the goals of high end listening.

a sound wave

A sound wave is a type of pressure wave caused by the vibration of an object in a conductive medium such as air. When the object vibrates, it sends out a series of waves which can be interpreted as sound. For example, when someone hits a drum, it causes the membrane of the drum to vibrate, and the vibration is transmitted through the air, where it can reach the ear of a listener. Vibrations travel at different speeds through different media. Any object that vibrates is within it'self is a source. Meaning it too once vibrating becomes a loudspeaker. Sometimes these objects can vibrate almost as loud as your speakers cones or panel, and in the case of your room louder. In other words not only are your loudspeakers your acoustical source but so is your room and everything in it big or small. In a typical living room you can have hundreds of mini speakers playing the audio signal your stereo is producing. Each little object is by nature playing the song and giving it's sound value to the overall sound of the system. There is not way around this and why should there be? Listening to sound pressure is how the hobby works.

difference between a sound wave and sound pressure

Many people in this hobby talk about listening to a sound wave, this is actually incorrect in the settting of our hobby. We are not listening to a sound wave we are listening to sound pressure. Sound waves are time and space combined movements or units of vibrating energy. When a sound wave is introduced to an enclosure air pressure takes over and the sound wave or waves are only an origin factor now. As soon as that mass of waves hit the air they are greeted with preformed pressure patterns that have allready been astablished. A typical room only lets a small amount of "true form" waves to happen. A true form wave is a wave that is able to travel from one surface to the next seemingly un touched or unaltered by the other waveforms. There is no way around this and to be accurate even free space (space not enclosed) treats the sound wave differently depending on it's conditioning. A sound wave as such is actual very changable able to always bend and move (reform) as it travels.

It's odd for a fixed audiophile approach to think that an audio signal is being bent or changing as it is sent from the origin to the air but this is reality none the less. This is why it is important to look at notes and note structures and pressure instead of a falsehood of the audiophile frequecy or sound wave. Audiophiles paint the picture of a sound wave cutting through the air when this is not practical. This goes back to the 2D drawings of what a sound wave looks like traveling, when in fact a sound wave itself is a sphere pattern. Picture 20,000 spherical units coming from your loudspeakers all at different lengths and intensities. Might be easier to picture them as small to large bubbles all trying to form curved paterns, growing outward then stimulating other objects who give off their own version of the same energy. If you could picture this in a snapshot it would be a far more accurate diagram than what we are shown by the industry. Have that picture in your mind? Now click your finger cause that picture has changed to a different arrangement every time you click. And this would be if we were talking snapshots. Free flowing sound pressure is far different than the visions we have been shown by our industry engineers to teach us. I believe if we would have been given proper training and instructions we would have given birth long ago to a different more sensible and managable hobby.

When thinking about sound this way you can start to see in your minds eye what is really going on in the listening room or environment. Your speaker is sending out a wave formation quickly to take on the personality of the space it is introduced to. Silly to think that putting foam or other absorbers or diffusors change this science, they only become a part of this energy flow adding their own flavor to the mix. There is no acoustical removal. The only way to have acoustical removal is a vacuum, and wood slats and dampening materials to not cause a vacuum. They are merely another sound creator or if not able to preserve the signal, a sound distorter.

My view of the hobby is to remove distortions by allowing nature to take it's course and providing a harmonic balance to all the signal and wave systems that are at play all the way along the audio pathway. This doesn't mean by doing this through the attempt of removing or canceling waves but through making the speaker and room one. This is my outlook through the whole signal pathway.
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Join date : 2009-09-18

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PostSubject: Re: Signal / Whole Philosophy   Signal / Whole Philosophy Icon_minitimeWed Jan 15, 2014 11:41 am

Hi Bill333

Where is your system now? Are you in audio heaven?

Let the rest of us lesser mortals know (with pictures)

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