2d09776856
- Removed compliance_status slot and replaced it with has_or_had_status. - Updated has_or_had_status to use ComplianceStatus for structured representation. - Adjusted examples to reflect new structure for compliance status. - Updated documentation to indicate migration and provide details on the ComplianceStatus class.
182 lines
6.6 KiB
YAML
182 lines
6.6 KiB
YAML
id: https://nde.nl/ontology/hc/class/AudioEventSegment
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name: audio_event_segment_class
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title: Audio Event Segment Class
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description: |
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A temporal segment of audio containing a detected audio event (speech, music, silence, etc.).
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MIGRATED from audio_event_segments slot (Rule 53).
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Uses generic has_or_had_segment slot with range narrowed to AudioEventSegment.
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imports:
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- linkml:types
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- ../slots/start_seconds
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- ../slots/end_seconds
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- ../slots/start_time
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- ../slots/end_time
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- ../slots/segment_index
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- ../slots/segment_text
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# MIGRATED 2026-01-19: confidence → is_or_was_generated_by + GenerationEvent + ConfidenceScore
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- ../slots/is_or_was_generated_by
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- ./GenerationEvent
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- ./ConfidenceScore
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- ../slots/specificity_annotation
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- ../slots/has_or_had_score # was: template_specificity - migrated per Rule 53 (2026-01-17)
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- ./SpecificityAnnotation
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- ./TemplateSpecificityScore # was: TemplateSpecificityScores - migrated per Rule 53 (2026-01-17)
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- ./TemplateSpecificityType
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- ./TemplateSpecificityTypes
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- ../enums/AudioEventTypeEnum
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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schema: http://schema.org/
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dcterms: http://purl.org/dc/terms/
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crm: http://www.cidoc-crm.org/cidoc-crm/
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oa: http://www.w3.org/ns/oa#
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ma: http://www.w3.org/ns/ma-ont#
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default_prefix: hc
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classes:
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AudioEventSegment:
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class_uri: hc:AudioEventSegment
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description: |
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A temporal segment of audio containing a detected audio event.
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**DEFINITION**:
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AudioEventSegment represents a bounded temporal portion of audio content
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where a specific type of audio event has been detected. This includes:
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- Speech segments (with optional speaker/language info)
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- Music segments (with optional genre/type info)
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- Silence segments (gaps between audio)
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- Sound event segments (applause, laughter, ambient sounds)
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- Noise segments (for quality assessment)
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**RELATIONSHIP TO VideoTimeSegment**:
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AudioEventSegment is a specialized sibling of VideoTimeSegment:
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- Both extend CIDOC-CRM E52_Time-Span concept
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- VideoTimeSegment: general video temporal segments
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- AudioEventSegment: audio-specific event segments
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**AUDIO EVENT TYPES**:
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| Event Type | Description | Example |
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|------------|-------------|---------|
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| SPEECH | Human speech detected | Interview segment |
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| MUSIC | Music detected | Background soundtrack |
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| SILENCE | Very low or no audio | Gap between segments |
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| SOUND_EVENT | Non-speech/music sounds | Applause, footsteps |
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| NOISE | Noise/interference | Quality issue marker |
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| MIXED | Multiple event types | Overlapping audio |
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**HERITAGE USE CASES**:
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| Content Type | Application |
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|--------------|-------------|
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| Oral histories | Speech segment identification |
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| Virtual tours | Background music detection |
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| Lecture recordings | Audience reaction segments |
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| Conservation videos | Narration vs ambient sound |
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| Archival footage | Audio quality assessment |
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**PROVENANCE**:
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Created as part of slot migration (Rule 53) from deprecated
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`audio_event_segments` slot to generic `has_or_had_segment` pattern.
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exact_mappings:
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- hc:AudioEventSegment
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close_mappings:
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- crm:E52_Time-Span
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- ma:MediaFragment
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related_mappings:
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- oa:FragmentSelector
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slots:
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- start_seconds
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- end_seconds
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- start_time
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- end_time
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- segment_index
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- segment_text
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# MIGRATED 2026-01-19: confidence → is_or_was_generated_by (structured ConfidenceScore)
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- is_or_was_generated_by
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- specificity_annotation
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- has_or_had_score # was: template_specificity - migrated per Rule 53 (2026-01-17)
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attributes:
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audio_event_type:
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range: AudioEventTypeEnum
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required: true
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description: The type of audio event detected in this segment.
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examples:
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- value: SPEECH
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description: Speech detected in this segment
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- value: MUSIC
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description: Music detected in this segment
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slot_usage:
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start_seconds:
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range: float
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required: true
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minimum_value: 0.0
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description: Start time in seconds for this audio event segment.
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examples:
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- value: 0.0
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description: Audio event starts at beginning
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- value: 45.5
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description: Audio event starts at 45.5 seconds
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end_seconds:
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range: float
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required: true
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minimum_value: 0.0
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description: End time in seconds for this audio event segment.
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examples:
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- value: 15.0
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description: Audio event ends at 15 seconds
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- value: 60.0
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description: Audio event ends at 1 minute
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start_time:
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range: string
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required: false
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pattern: "^PT(\\d+H)?(\\d+M)?(\\d+(\\.\\d+)?S)?$"
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description: Start time in ISO 8601 duration format.
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examples:
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- value: PT0M30S
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description: 30 seconds from start
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end_time:
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range: string
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required: false
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pattern: "^PT(\\d+H)?(\\d+M)?(\\d+(\\.\\d+)?S)?$"
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description: End time in ISO 8601 duration format.
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examples:
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- value: PT0M45S
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description: 45 seconds from start
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segment_text:
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range: string
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required: false
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description: Text content for this segment (e.g., speech transcript, music description).
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examples:
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- value: "Welcome to the Rijksmuseum"
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description: Speech transcript text
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- value: "Classical background music"
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description: Music segment description
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is_or_was_generated_by:
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range: GenerationEvent
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required: false
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inlined: true
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description: >-
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Generation event containing confidence score for audio event detection.
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MIGRATED 2026-01-19: Replaces confidence slot with structured pattern.
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examples:
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- value:
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has_or_had_score:
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has_or_had_score: 0.95
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has_or_had_method: "audio_classification"
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description: High confidence audio event detection
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comments:
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- Audio event segment for speech, music, silence, sound event detection
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- Temporal boundaries with start/end seconds (primary) and ISO 8601 (secondary)
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- Confidence scoring for AI-generated detections
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- Part of Rule 53 slot migration from audio_event_segments
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see_also:
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- https://www.w3.org/TR/media-frags/
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- https://www.w3.org/ns/ma-ont
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