sound card
Enable an AI agent to recognise a sound card, assess its audio capabilities and operating state, and determine compatible, safe recording and playback actions.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an AI agent to recognise a sound card, assess its audio capabilities and operating state, and determine compatible, safe recording and playback actions.
A sound card is a computer audio hardware subsystem, implemented as an expansion card, integrated circuitry or an external peripheral, that provides audio input, output or both through digital audio interfaces and, where fitted, analog-to-digital and digital-to-analog conversion.
It can be Match a host, driver and sound card for a required recording or playback task.; Select compatible ports, signal levels and channel assignments for attached audio equipment.; Configure a supported combination of sample rate, sample format, channels and buffer settings.; Route and monitor audio while managing clipping, excessive output and feedback risks.; Diagnose missing endpoints, silence, noise, dropouts and digital clock faults.; Plan driver, firmware or hardware maintenance with a recoverable configuration..
Distinguishing features
Provides a physical computer-audio function; a virtual audio driver alone does not qualify.
Exposes or supplies host-usable audio input, output or processing rather than merely transporting arbitrary computer data.
Has an identifiable audio signal path; a passive connector adapter alone does not qualify.
A headphone amplifier or standalone converter qualifies only if its host-audio role falls within the adopted sound-card boundary.
Internal expansion cards, motherboard audio and external interfaces require explicit classification rather than treating enclosure shape as decisive.
Scope
+ Audio conversion, routing and processing capabilities
+ Internal, integrated and external implementations, with their classification boundary recorded explicitly
+ Host connections, driver dependencies and audio endpoint exposure
+ Analogue and digital audio ports, channel arrangements and electrical compatibility
+ Supported operating modes, measured performance and fault states
+ Configuration, diagnostics and maintenance relevant to audio operation
- The host computer's general computing capabilities
- Microphones, loudspeakers and headphones as separate devices
- Audio recordings, compositions and their intellectual content
- Recording and playback software beyond its interface with the hardware
- Standalone mixers, amplifiers and converters without a qualifying computer-audio role
- Commercial product families and inventories of individual units
Characteristics
- Implementation form
- Internal expansion card | motherboard-integrated audio | external interface | other documented form Determines installation, replacement and classification boundaries.
- Host interface
- Documented bus or link type, version and connector Determines physical and protocol compatibility with the host.
- Audio direction
- Playback | capture | simultaneous playback and capture Prevents assuming every sound card supports both recording and playback.
- Concurrent channel capacity
- Input and output channel counts, qualified by port, format and operating mode Determines whether the requested audio arrangement can run simultaneously.
- Supported sample rates
- Hz, qualified by direction, channel count and interface Supports compatible stream configuration without assuming every mode combination is valid.
- Digital sample format
- Supported encoding, container width and valid bits per sample Distinguishes transfer format from effective analogue performance.
- Port signal compatibility
- Connector and pinout; analogue or digital; microphone, instrument, line, headphone or documented alternative Physical connector fit does not establish signal compatibility.
- Electrical operating limits
- Input and output level in V RMS or explicitly referenced dB units; impedance in Ω; supplied bias or power in V Supports compatible connections and avoids overload or inappropriate powered connections.
- Audio performance
- Latency in ms; frequency response in Hz and dB; noise and distortion with stated units and test conditions Allows suitability judgments based on measured behaviour rather than nominal format support.
- Host software dependency
- Compatible operating systems, driver packages, firmware versions and audio APIs Hardware capability may be unavailable through a particular software configuration.
- Clock configuration
- Clock source, selected rate, lock status and synchronisation peers where applicable Helps diagnose incompatible digital streams, drift and intermittent audio faults.
- Operational state
- Detected endpoints, active routes, mute and gain settings, stream status and observed errors Distinguishes available hardware from an audio path that is actually usable.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 18 findings · 28 questions.
Identity and host integration Establishes which physical audio function is being modelled and how the host accesses it.
Sound-card names can refer to an expansion board, integrated circuitry or an external interface, while one physical device can expose several logical endpoints.
Physical audio boundary
Separates the registered kind from adjacent audio devices and software endpoints.
Qualifying host-audio role
Record the physical subsystem and its host-audio role before classifying it as a sound card.
- Which physical components provide the host's audio capture, playback or processing function? definition
- Does this implementation belong here or to a neighbouring model for an audio interface, converter or amplifier? boundary
Host access
Connects physical installation to driver support and exposed audio endpoints.
Hardware-to-endpoint mapping
Record the host interface and software dependencies that make each hardware audio path available.
- Which host interface, operating system, driver and firmware combination exposes the required endpoints? definition
- Which manufacturer documentation or observed enumeration establishes that each endpoint belongs to this hardware? provenance
Ports and electrical compatibility Describes what may be connected and the signal conditions each connection requires.
Similar-looking audio connectors can carry incompatible signal levels, channel arrangements or power.
Port and channel map
Maps connectors to signal roles, channels and configurable assignments.
Connector function assignment
Record connector pinouts, audio direction and channel assignments, including any retasking or shared-port restrictions.
- What signal type, direction, pinout and channel assignment does each port support? definition
- Which ports change function with software settings or prevent other ports from operating simultaneously? boundary
Electrical matching
Captures levels, loads and powered-input conditions relevant to connected equipment.
Signal and power limits
Record documented electrical limits and distinguish any microphone bias or phantom-power provision instead of inferring it from connector appearance.
- What input limits, output levels and load impedances apply to each analogue port under stated conditions? measurement
- What powered-input or output settings must be checked before connecting the intended microphone, instrument, amplifier or headphones? action
Conversion, streams and clocking Defines usable audio modes and the timing relationships between host streams and physical signals.
Headline sample-rate and channel specifications do not describe all concurrent modes or digital synchronisation requirements.
Supported audio modes
Records valid combinations of direction, channels, format and conversion paths.
Mode combination constraints
Represent supported operating combinations explicitly, including simultaneous capture and playback and any conversion or resampling.
- Which sample rates, sample formats and channel counts are supported together for each input and output path? measurement
- Which modes require resampling, disable another path or restrict simultaneous capture and playback? boundary
Clock and buffer behaviour
Records clock selection, synchronisation and buffering relevant to continuous audio.
Timing configuration and stability
Separate clock synchronisation from host buffering and assess their effects under the intended workload.
- Which clock source is active, and how is valid lock established when digital audio peers are connected? measurement
- What buffer setting sustains the intended workload, and what measured latency and dropout rate result? measurement
Routing, monitoring and performance Connects configured signal paths with the audio results required by the task.
A detected sound card can remain silent, route audio incorrectly or produce unsuitable results because of mixer, monitoring or gain settings.
Signal routing and gain
Follows audio through input selection, mixers, processing, monitoring and output control.
Active signal path
Record the selected route and its gain, mute, processing and monitoring settings, including hardware or software loopback where present.
- Through which input, mixer, processing and output stages does the intended signal pass? definition
- Which route and gain changes will establish the intended monitoring path without clipping, excessive output or feedback? action
Performance evidence
Separates nominal capability from measured audio quality and task suitability.
Qualified audio measurements
Attach test conditions to performance claims and distinguish analogue-path results from supported digital sample formats.
- What frequency response, noise, distortion and channel separation are measured for the intended path, gain and load? measurement
- Which test report or reproducible measurement supports these values, and does it isolate the sound card from the test equipment? provenance
Fault isolation and service Supports diagnosis, corrective changes and restoration of a verified audio configuration.
Sound-card failures can arise in hardware, cabling, clocking, drivers or routing, so symptoms alone do not identify the failed component.
Audio fault diagnosis
Relates observed symptoms to discriminating checks across the audio path.
Symptom-to-path isolation
Record reproducible symptoms and use controlled substitutions or measurements to locate their cause.
- Under which ports, stream settings, workloads and connected-device arrangements do silence, hum, distortion or dropouts occur? measurement
- Which controlled check distinguishes a sound-card fault from cabling, host software, clock mismatch or attached equipment? action
Maintenance and recovery
Records applicable service procedures, configuration recovery and compliance evidence.
Verified service and restoration
Tie installation, software updates and physical servicing to the particular implementation and preserve the information needed to restore audio operation.
- Which manufacturer instructions and applicable interface, electrical-safety or electromagnetic-compatibility declarations govern this implementation? provenance
- What configuration backup, power-state preparation, rollback method and post-service audio checks are required for the proposed maintenance? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This is recalled knowledge, not source-verified research; the listed specifications apply only to implementations using those interfaces.
- Sound card is sometimes restricted to internal expansion cards; usage also commonly includes integrated and external computer audio devices.
- Sampling rates and word lengths describe common supported formats, not effective converter resolution or guaranteed audio quality.
- Which of these check these first hold for the sense of sound card this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Internal PCI or PCI Express sound card
- Motherboard-integrated audio
- External USB sound card
- Multichannel surround sound card
- Professional recording sound card or audio interface
- Which of these kinds and varieties hold for the sense of sound card this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- PCI vendor and device IDs - 16-bit vendor ID paired with a 16-bit device ID - Identifies PCI or PCI Express hardware implementations; subsystem IDs can distinguish board variants.
- USB vendor and product IDs - VID_xxxx and PID_xxxx, with four hexadecimal digits per field - Applies to USB implementations; identifies a product implementation rather than an individual physical unit.
- Which of these identifiers and schemes hold for the sense of sound card this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- USB Audio Device Class specifications - USB Implementers Forum; define interoperable USB audio device behavior.
- High Definition Audio Specification - Intel; defines a controller-to-codec architecture widely used for integrated computer audio.
- IEC 60958 - International Electrotechnical Commission; specifies digital audio interfaces relevant to equipped devices.
- AES3 - Audio Engineering Society; specifies a digital audio interface used by some professional devices.
- Which of these standards and regulation hold for the sense of sound card this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Playback through headphones, powered speakers or external amplifiers
- Recording microphones, instruments and line-level audio sources
- Voice communication and conferencing
- Multichannel playback for games and audiovisual media
- Music production, monitoring and audio signal processing
- Which of these real-world use hold for the sense of sound card this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Common supported PCM sampling rates - 44.1-192 - kHz
- Common PCM sample word lengths - 16 or 24 - bits per sample
- Consumer analog playback channel count - 2-8 - channels
- Which of these typical measurements hold for the sense of sound card this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Driver, firmware or device-selection problems can cause missing audio or unavailable inputs and outputs.
- Buffer underruns and overruns can produce clicks, dropouts or interrupted recording.
- Excessive input or output gain can cause clipping and distortion.
- Ground loops, poor shielding or electrical interference can introduce hum and noise.
- Excessive headphone or loudspeaker output levels can damage hearing.
- Which of these failure modes and hazards hold for the sense of sound card this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Audio interface - The terms overlap; audio interface commonly emphasizes recording connections, preamplifiers and monitoring, while sound card commonly describes a computer audio subsystem.
- Audio codec integrated circuit - A codec chip performs conversion and related signal functions within a subsystem; a sound card includes the computer-facing implementation and supporting circuitry.
- Digital-to-analog converter - A DAC performs one conversion function; a sound card provides a computer audio interface and may also support recording or digital-only connections.
- Audio amplifier - An amplifier increases signal voltage or power; computer audio data exchange and conversion are not its defining functions.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of sound card this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend sound card to include motherboard audio, external USB interfaces and audio functions embedded in other expansion hardware, or are some covered by existing neighbouring models?
- Which existing Vercy world model, if any, already owns this concept and should provide its single source of truth?
- Which authoritative technical sources establish the common capability vocabulary without generalising optional professional-interface features to all sound cards?
- Which interface standards and jurisdiction-specific conformity requirements apply to each implementation, and what evidence is needed to record compliance?
- Which reproducible test conditions and task-specific acceptance thresholds should govern latency, noise, distortion and reliable simultaneous channel operation?