Wired for sound (or maybe not )
The evolution of audio engineering that should be recorded' in history
One of life's great annoyances is teenagers that hang out at the back of the bus and blast music through their tinny phone speakers. It's not annoying because you'd rather be listening to Zeppelin's Second Album or Wagner's Tannh user - no, it's not the nature of the music, but the quality that grates so harshly.
But you'll be unsurprised to hear that it's been a long road in getting to the stage of immaculate audio that we've come to expect in film, TV and music. In this month's blog, we thought we'd give you a little rundown of the history of audio, if only to help build up your bank of useless pub quiz knowledge.
Where it all began
1877 is generally credited as the birth of recorded audio, and it's a familiar name linked to that birth: it was Thomas Edison - of lightbulb and Tesla-feud fame - who created the first phonograph, based on little more than a strip of tinfoil wrapped around a spinning cylinder. His track of choice? Mary Had a Little Lamb. Though as with all good science, his breakthrough was built on the back of the work of the grandly named douard-L on Scott de Martinville, and Charles Cross - both who had mastered the idea of recording music, but hadn't quite figured out how to play it back.
The next big jump was from the cylinders that Edison had been working on, to the gramophone of Emile Berliner - what we'll eventually come to recognize as a vinyl record. It's about 25 years later that magnetic recording is developed, and the oldest surviving magnetic recording is of Emperor Franz Josef of Austria (uncle to the famous Franz Ferdinand), but it won't be until the 60s that we get the cassette tape.
In 1906, the first possibility of making music really loud (like it should be) was made with the development of the triode vacuum tube, the first electronic signal amplifier. This will of course eventually become vital for the Spinal Tap joke about Amps that go all the way up to 11.
In 1929, audio gets geeky (because we all know engineers are cooler than mathematicians, right?), with Harry Nyquist's publication of the creatively named Nyquist Theorem ; a mathematical foundation for the sampling theorem basic to all digital audio processing.
And then in 1931 Alan Blumlein gets to thinking that if we have two ears, maybe we'd like to use them, and essentially patents the idea of stereo, whilst at Bell Labs practical work is underway to cut disks in a way that can actually deliver on that concept, using vertical and lateral cuts. This is a big development.
So too is what occurs in 1940, where Les Paul (of guitar fame) develops multi-track recordings; crucial to the Rock wave that was due to come in the 60s, and first used in film on Disney's Fantasia.
Big leaps and little steps all move you forward
As with much of technology, after some of these big, revolutionary' leaps comes a lot of tweaking and refining, pushing the boundaries of what can be done with the fundamental concept. We get various different sizes and type of vinyl disk, and various evolutions in recording, replicating and listening. All the while, audio quality is improving.
And then the digital revolution. The Compact Disk emerged in the 70s, and music production changed in earnest: digital tools gave sound engineers more creative possibilities than had ever been considered before. And the 90s then gave us Dolby surround sound - remembered by a generation of cinema goers for the overwhelming wave of sound that used to make your hairs stand up on the back of your neck before the film started.
From the listening side, we'd worked our way through Walkmans, personal compact disc players and mini disks, and the rise of the MP3 player came about - amazingly - as late as 1998. Digital was not just improving the production capabilities on offer, but the listening mechanisms for audiences.
And finally, of course, hot on the heels of that was to come the internet/communications revolution, taking all of the possibilities of digital and freeing it of geographical constraints. In 1998, Beethoven's Ode to Joy' was played at the Winter Olympics by delivering five live audio feeds from five continents to a conductor in Japan, using satellite and ISDN. At the time, a huge feat of technological engineering. Now? Pretty much your average Tuesday for a sound engineer.
Picture #Aksel Kolstad International Pianist
The evolution of a sound engineer
Of course, as this technological change has occurred, it has driven changes in the way the industry functions, and the professionals within it - diverse as their roles, duties and functions are. As electronic audio has opened up a new realm of possibilities, then the nature of the job has become increasingly creative, and not just an exercise in technical detail and refinement.
But what the electrification of audio has really facilitated is a change in where, how and when audio professionals can undertake their work. You might think of an audio engineer sat in a huge studio, in front of an immense mixing deck, buttons and flashing lights everywhere (and the wires oh so many wires).
And sure, if you have the luxury of space and budget, then all those tools are a godsend. But audio engineers are increasingly being asked to work in unusual circumstances; not only have the events of the past two years meant that often, going into a dedicated studio was impossible and working from home was the only option, but also - increasingly - sound engineers are working on outside broadcast projects. These aren't just complex in terms of the uncertain and complex conditions surrounding the recording process (you try miking up a presenter in gale force winds ), but also the
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Wired for sound (or maybe not )
