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• Comment: Frankly I'm quite disappointed by your LLM use here; with 2,000 edits and 10+ years of editing, you are absolutely capable of writing an article without external assistance of dubious quality. —pythoncoder (talk | contribs) 23:19, 6 December 2025 (UTC)

Eclipsa Audio (stylized as Eclipsa) is an open-source, royalty-free immersive (3D) audio format and ecosystem. Co-developed by Google and Samsung within the Alliance for Open Media (AOMedia), it is built upon the Immersive Audio Model and Formats (IAMF) specification.^[1][2] The format was developed to be a direct competitor to proprietary, licensed immersive audio formats like Dolby Atmos and DTS:X, with the strategic goal of creating an open, license-free standard for next-generation audio.^[3][4][5]

Eclipsa Audio's foundation lies in the Immersive Audio Model and Formats (IAMF) framework, developed by Google and Samsung engineers with contributions from other members of the Alliance for Open Media.^[6] AOMedia, known for developing the open AV1 video codec, sought to create a similar royalty-free standard for audio to reduce dependency on costly licensing from companies like Dolby Laboratories. The IAMF specification was officially ratified and adopted by AOMedia in late 2024, making it available for implementation without licensing fees.^[7] In January 2025, Google and Samsung officially announced Eclipsa Audio as the consumer-facing brand for their implementation of IAMF. This announcement coincided with the release of an open-source plugin for popular digital audio workstations (DAWs), allowing content creators to begin producing and mixing audio in the new format.^[8] Simultaneously, Samsung announced that its entire 2025 lineup of TVs and soundbars would ship with native support for Eclipsa Audio decoding.

Eclipsa Audio uses the IAMF specification as a container for spatial audio. A key feature of IAMF is that it is codec-agnostic, meaning it can carry audio streams compressed with various codecs, including PCM (linear), Opus, FLAC, and xHE-AAC. This flexibility allows manufacturers and streaming services to use their preferred codecs for efficiency and quality.^[7][6][8] Unlike Dolby Atmos, which primarily relies on packaging individual sounds as "audio objects" with 3D positional metadata, IAMF supports multiple rendering modes simultaneously:

• Channel-based: Traditional surround sound layouts, such as 5.1 or 7.1.4.
• Object-based: Individual audio objects with 3D coordinates, similar to Atmos, allowing sounds to be placed precisely in space.
• Scene-based: Higher-order ambisonics, which captures the entire soundfield from a single point. This is particularly effective for creating immersive ambient environments.

An Eclipsa Audio bitstream can contain up to 28 input audio elements and includes extensive metadata to guide the renderer on how to mix and spatialize these elements for any given speaker layout, from stereo headphones to complex multi-speaker home theater systems. This includes robust support for binaural rendering, which uses head-related transfer functions (HRTFs) to create a convincing 3D soundstage over standard headphones.^[6][7][8]

Eclipsa Audio introduces several advanced features designed to enhance listener immersion and flexibility:

• Vertical Sound Adjustment: Allows users to perceptually shift the height of the soundstage. For example, if a user's ceiling speakers are mounted too low, this feature can adjust the audio rendering to make sounds appear to originate from a higher elevation.^[9]
• AI-powered Room Calibration: By leveraging Google's AI expertise, Eclipsa-certified devices can use a built-in microphone (such as on a remote control or soundbar) to analyze a room's acoustics and automatically calibrate the audio output to compensate for imperfections like reflective surfaces or asymmetrical speaker placement.
• Personalized Binaural Profiles: For headphone listening, users can generate a personalized HRTF profile (e.g., by taking a picture of their ears with a smartphone app) to achieve a more accurate and natural spatial audio experience.^[10]

To encourage adoption, Google and Samsung have invested in creating an accessible ecosystem for creators. The official Eclipsa Audio plugin is available for free for DAWs like Reaper, Logic Pro, and Pro Tools.^[6] The source code for the reference encoder, decoder, and plugins is publicly available on GitHub, allowing for community contributions and custom implementations.^[11] The official Eclipsa Audio website provides documentation, tutorials, and sample content for creators and developers.^[12]

Initial adoption has been led by the format's creators. Samsung integrated Eclipsa Audio support across its 2025 lineup of Crystal UHD, QLED, and Neo QLED 8K TVs, as well as its Q-Series soundbars.^[13] YouTube, owned by Google, began supporting uploads with IAMF audio tracks in mid-2025, making it the first major streaming platform to adopt the format.^[6] Samsung and Google have also established a certification program, managed in partnership with organizations like the Telecommunication Technology Association (TTA), to ensure interoperability and performance standards for Eclipsa-branded devices.^[13] Industry analysts have framed Eclipsa Audio as a significant challenger to Dolby's market dominance, highlighting its royalty-free model as a major incentive for device manufacturers and streaming services looking to reduce operational costs.^[14] However, the format faces the significant challenge of overcoming the "chicken-and-egg problem" that affects all new media formats: widespread content availability is required to drive hardware adoption, and vice-versa. As of late 2025, adoption beyond the Google/Samsung ecosystem is unconfirmed, although other AOMedia members such as Amazon, Apple, and Netflix are considered potential future adopters.^[15]

Category:Surround sound Category:Audio formats Category:Google Category:Samsung