We (sound designers) try to simulate this entire experience with film.'

Shut your eyes and concentrate on the sounds when you are in a cafeteria, a market place, or a place of religious worship and you will understand the cornucopia of sounds that are present.

With the sound coming literally from above, the result is a much more realistic sound, and a much more immersive cinema experience.ДЄs Chatterjee puts it: 'Our perception of hearing is always on. What this means is that the audio doesn't just move from side to side, simulating the sound of a helicopter flying overhead. Moreover, we can also pan the sound using overhead speakers.'Д«ishwadeep Chatterjee with his arsenal of sound recording tools. 'When we are panning the sound of a helicopter flying above the audience,' says Chatterjee, 'using Atmos we can pinpoint the source and the sound becomes more realistic as a result. The first Indian film to use a native Atmos mix was Madras CafГ©, and we caught up with Bishwadeep Chatterjee, the film's National Award-winning Sound Designer. In one scene, there's a gunfight taking place, and you can hear - not just see - the bullets whizzing past, and thudding into different parts of a wall. On the ground, this means using sophisticated algorithms to design placement of speakers throughout the theatre so as to be able to recreate that experience.ДЄ recent example from Hollywood is the latest Transformers movie. Instead of 5, 7 or 11 channels of sound that they are traditionally used to, film makers get access to up to 64 channels so they can make sounds seem to move in a very precise manner. In simpler terms, Dolby Atmos gives sound designers the ability to 'move' the sound as background or foreground objects move on or off-screen, giving the resultant effects a more realistic feel. Instead of using the speaker channels, Atmos can pinpoint individual speakers, to make the position of sounds much more precise, letting you accurately trace the movements of, say, a helicopter, or helping you feel like you're really inside a scene as the various environmental effects fill the space. On top of this bed, additional audio elements or an audio object can be positioned according to the corresponding visual on screen. The bed mix largely consists of atmospheric sounds. The difference in sound quality is huge.'Дolby Atmos is essentially a way to layer an extra bed of sounds over the regular mix made using traditional channel-based method. 'However, the same cannot be said about Dolby Atmos. 'The difference in sound quality between 5.1, 7.1 and Dolby 3D is almost imperceptible,' says Dev.

We got to chat with Anup Dev, a Sound Re-recording Mixer at Shree Balaji Studio and a Bollywood veteran who has worked as sound re-recording mixer for films like Chennai Express, Ra.One, and Singam 2. It's a near perfect recreation one that completely overshadows the on-screen visuals. The sound of flapping wings of a bird panned 360 degrees on the background of pitter-patter of raindrops. Seated inside the plush Shree Balaji studios in the Mumbai suburb of Andheri, we were treated to a live demo of Dolby's latest sound technology for digital cinemas - Dolby Atmos.

Dolby atmos movies in india