1. Spatialization: As virtual objects are placed in the real space, sound needs to be spatialized to match the position and movement of these objects. The audio needs to be accurately positioned in space, so that the user can quickly locate it.
2. Ambience: The audio needs to be in sync with the visual elements to create a realistic environment that blends with the real world. Creating the desired atmosphere requires attention to details like the types of sounds, the volume and pace of the sound, and the environmental context of the user.
3. Interaction: The sounds should provide clear feedback and give an instant response to user interaction. The sound design should allow users to customize certain sound effects to enable personalization.
4. Immersion: The sound should transport the user into a fully immersive world. It should match the visual elements, create realism, and enhance the entire experience.
5. Audio quality: The sound quality should match the level of visual quality. It is important to use high-quality microphones and speakers to ensure a high-fidelity soundscape in the augmented reality environment.
6. Accessibility: The audio should reach all the users, no matter the ability or preference, whether it is through screen readers, sign language interpretation, or sound description.
7. Consistency: The sound design should be consistent throughout the system. The sounds should match the user's expectations and should not be confusing or jarring in any way that can interrupt the flow of the experience.
8. User engagement: The sound should engage the user and encourage their psychological connectedness to the environment. Effective sound design can actively draw the user in, conveying something about the space, and fostering a deeper level of emotional connection.
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