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spec: audio-out.md — container-authoritative audio format; mime/sample_rate optional#106

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spec: audio-out.md — container-authoritative audio format; mime/sample_rate optional#106
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@JarbasAl JarbasAl commented Jul 4, 2026

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Refines OVOS-AUDIO-1 to a single, pure audio-format rule.

Changes

  • New §4.0 — Audio format. The container (WAV/MP3/OGG/FLAC) is the single source of truth: it self-describes via magic bytes, and WAV even carries sample rate/channels. mime is therefore OPTIONAL and advisory (a hint a consumer MAY use to skip container detection; the container is authoritative on disagreement). sample_rate is OPTIONAL. Both become REQUIRED only when the payload is a headerless raw stream (raw PCM) with no container. Applied uniformly to ovos.audio.queue (§4.1), ovos.audio.play_sound (§4.2), and ovos.audio.speech (§4.3).
  • §5.3 — the speaking-status query is answered via the MSG-1 response derivation (ovos.audio.is_speaking.response), closing an unspecified reply leg.
  • OVOS-TRANSFORM-1 referenced by its title, Transformer Plugins Specification (two places).
  • CHANGELOG entry appended under the spec's class-2 section.

Version stays 2: these are editorial/additive refinements within the existing compatibility class (VERSIONING.md).

🤖 Generated with Claude Code

…ample_rate

The audio format is intrinsic to the payload's container: WAV/MP3/OGG/
FLAC self-describe via their leading bytes, so a mandatory mime field
would be a second, contradictable declaration. mime and sample_rate are
OPTIONAL advisory hints; both are REQUIRED only for headerless raw
streams (raw PCM). Applied uniformly to ovos.audio.queue, play_sound
and speech (new §4.0). is_speaking now answers via the MSG-1 response
derivation. TRANSFORM-1 referenced by its actual title.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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JarbasAl marked this pull request as ready for review July 16, 2026 07:21
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