Software Development Life Cycle By Team Orange (Dept. of Pharmacy)
Spatial Audio
1. ACADEMY OF TECHNOLOGY
PRESENTATION ON SPATIAL
AUDIO
PAPER CODE : EC-681
Submitted by:- Arnab
Banerjee(19)
Atrija Singh(24)
Guided by:
Prof. NUPUR
CHHAULE
2. SOUND AN IMPORTANT PART OF HUMAN
LIFE
• Communication
• Sense Making
• Perception
• Pleasure
• etc……
3. HUMAN AUDITORY PROCESSING
• Captures
• Analyze
• Process
In Spatial Audio , sound is usually created by relative
compact sources that occupy a small region.
4. DISCRETE TIME SIGNAL
PROCESSING
• Location
• Direction
• Ambience
Effective Method:
• Microphone Array
• Head Related Transfer Function (HRTF)
6. SPATIAL AUDIO HISTORY
• Stereo Recordings -- able to pan a phantom source
between two speakers
• 5.1 audio -- horizontally pan a source
• 7.1 audio -- provides more elevation
• Virtual Reality (VR) era – ambisonics, provides
true audio immersion . Simulate real world acoustics in VR.
7. SPATIAL AUDIO ROLE IN VR
Examples :
• If someone calls us, we immediately know where to look
• If a train passes by we can feel from which direction it passes
Reason :
• Directional perception
8. THEORY
• How Spatial Audio Works in VR
In VR user is put into the middle of the action and he might not even know where to look.
Spatial Audio provides a powerful tool to control user attention by providing spatial audio queues from the
direction of interest that a user can be guided through Virtual Reality
• What will Happen if Spatial Audio is not provided in VR
The illusion of being in a different world immediately breaks as soon as there is a mismatch between our senses.
Particularly the lack of spatial audio immediately breaks in the VR immersion
9. SPATIAL AUDIO IN REAL WORLD
• Time Difference
https://developers.google.com/vr/concepts/spatial-audio
• At higher frequencies , λ< d
12. APPLICATIONS
• Virtual and Augmented Reality Games
• Recording of Live Concert to give the viewers the
virtual feeling of being present at the concert
• Hearing devices for patients , to make them feel the
current situation where they are present.
13. ADVANTAGES
• Virtual and Augmented Reality Games
• 360o videos
• Movies
• Animations
• Recording of Live Concert to give the viewers the
virtual feeling of being present at the concert
• Hearing devices for patients, to make them feel
the current situation where they are present.
14. DISADVANTAGE
• Costly and complex to design
• Needs precise algorithms and calculations
• complex structure of microphone array
15. FUTURE SCOPES
• Spatial Audio is an emerging trend
• Many researches are being carried out
• VR and AR have most of its applications
• This can be further implemented in medical devices
• Spatial Audio can also be used as a tool for Medical
Students
• Most of Future Games will have this
• This will further provide more and more immersion in
sound technology with the user
16. CONCLUSION
• Spatial Audio is a very emerging technology in the
current era.
• Applying spatial audio in many day to day life devices
will change the scenario of viewing the world.
• The addition of Spatial Audio in AR and VR in most
devices will have a great positive impact in human life.
