IAMF Binaural Web Demo
What is IAMF?
IAMF is a new open source spatial audio format from Alliance for Open Media that enables immersive audio experiences. IAMF specifies the audio compression and rendering that every compatible device should implement, from living-room devices to mobile and web.
About this demo
This is a demo of the libiamf decoder compiled into WebAssembly and decoding IAMF in the browser.
To get the spatial, binaural audio experience and hear the direction of sounds, you need
to both use headphones and to use an IAMF file that has the
headphones_rendering_mode
set to HEADPHONES_RENDERING_MODE_BINAURAL.
Our team keeps on improving the binaural rendering quality and will update the demo as work progresses.
Things to listen for:
- Regular stereo playback in headphones is often described as hearing the sounds "inside your head" or "between your ears."
- Binaural playback creates the perception of sounds originating outside your head, similar to natural hearing.
- Sounds will be perceived as having directionality, such as behind, above, below, or even moving around you.
- IAMF can utilize ambisonic sound fields, creating a spherical auditory experience. Some audio samples will effectively demonstrate this immersive sound sphere.
How to run the demo:
- Choose a file from the dropdown menu to start decoding. (Please be patient as decoding time may vary depending on your machine's processing power and the file's length and type of content.) Alternatively, you can drag and drop your own IAMF file for decoding.
- With your headphones on, play the stereo and binaural versions to hear the differences in immersion, directionality, and fullness.
Questions or feedback: Please file an issue on GitHub.
Settings
Note: Only standalone .iamf files are supported and very large files (> 1GB) may exhaust the browser sandbox's memory.
Advanced settings
These settings are for debugging and testing purposes. Changing some settings may have unintended consequences, for example, setting a higher output sample rate than used in the input file will result in upsampling.
By checking this box, you can access the stereo and binaural audio elements directly to, most usefully, download audio.
Audio Playback
After a file is finished decoding, you can listen to the results here.
You can click the [Stereo] and [Binaural] buttons to switch between the binaural and stereo versions and hear the difference in spatalization.
Clicking on the waveform/timeline allows you to jump to a particular point and clicking and dragging allows you to select a section for looping.
Remember to use headphones!
Built 2024-10-18 14:04:01 UTC - Renderers: Resonance Audio and BEAR