Tuesday, October 30, 2007

Creative Destruction: No Special Listening chair needed

The Sonic Soundscape is the first commercially available system using Airsound technology. Creative Destruction principles suggest that the difficulty of getting a new way of reproducing stereo accepted will be information.

If Airsound is indeed an “improvement” on the reproduction of stereo then this is indeed true. I have done numerous presentations over the last 10 months for the Sonic Soundscape, and indeed the inventor Ted Fletcher, has also shown off Airsound systems, including the Sonic Soundscape.

The main difficulty is getting people to listen. It is sound, and difficult to articulate the exact listening effect.

“No special listening chair needed”

The Sonic Soundscape provides better quality sound than similar priced speakers as it has:

1 Really clear sound
2 A “surround sound” or spatial element giving depth and space

additional advantages also mean that you need little regard to:

3 the positioning of the speakers
4 where you or your friends and family sit or stand in relation to the speakers
5 how to conceal lots of wires
6 lower volumes needed to get desired sound

It could be ideal for music, home cinema, pc games or television

The Sonic Soundscape contains Airsound which resolves the performance constraints of conventional stereo.

Conventional stereo probably means you have 2 speakers. Unless you locate your speakers properly in your house and sit in the right position you will not hear true stereo sound. You may recognise this as distortion. This may get worse as you increase amplification. (Think about listening to music at a party with lots of people).

The Sonic Soundscape is the first commercially available Airsound system. It maintains an accurately balanced stereo sound-field in all listening positions in front of the speaker. This gives the REALLY CLEAR SOUND.

Conventional stereo is mixed, often 80/20 to give a balanced sound at the single listening point. This does not give a sense of depth. Surround Sound 5.1 or even 7.1 systems use 5 or 7 speakers to split the sound signals, and again, if you are in the middle of the speakers it is possible to get a sense of depth. Virtual Surround Sound (VSS) simulates true, multispeaker surround sound by processing 5.1 audio into two channels (left and right). The spatial algorithms in VSS systems are sometimes used to bounce signals off walls to approximate the effects of speakers to the sides and rear. They are more compact, easier to install and usually less expensive than 5.1 systems, with far less speaker-wire clutter. The absence of rear speakers and a subwoofer means less rumble in movie explosions (and less bottom on your CDs) and a smaller sweet spot where audio effects are most dramatic.

Airsound systems provide a large sweet spot in all places in front of the speaker. There is also far less speaker-wire clutter. You are in charge of your room, not your stereo. The “SURROUND SOUND” element is not simulated, it is real. It uses a principle called 'sum and difference' or ‘middle and side’ (M/S). By adding and subtracting the 'omni' or 'sum' signal with the 'difference' signal, it is possible to arrive at a conventional 'left' and 'right' audio signal. The M signal represents the majority of the signal content and is heard from the front speaker. While the S contains all the spatial information and comes out of the spatial speakers at the side. This produces a “Sonic hologram”. A picture of sound that does move as the sound changes.

The resultant really clear sound with a surround sound element has the bonus being able to locate the speakers almost anywhere. You can put them where you want. Your room is yours. You can sit where you want. No special listening chair needed.

A bit about Ted: Ted Fletcher is the inventor, one time assistant to Joe Meek whilst he was producing songs such as "Just Like Eddie" by Heinz. He then went on to design ranges of professional audio recording equipment firstly under the Joe Meek brand, and then under tfpro.

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