C API reference

C SDK 0.24.0 uses core 0.24.0 and model file format 7. This reference covers the public aic.h surface: 43 functions, seven opaque handle types, two value structs and three enums, including every field and enum member. Signatures follow the released header. For installation and a complete runnable audio example, start with the C integration guide. This reference has no automatic model downloader or file-decoding API: download a model separately and decode audio in your application. Internal wrapper-registration exports are not part of the public header contract.

Browse by task

Task	Reference
Load a model, inspect its rate or configure OTel	Models and configuration
Enhance audio and control stream state	Processing
Detect speech with a dedicated model	VAD
Collect audio and compute Tyto scores	Analysis
Interpret an error or inspect a struct field	Errors and types

Alphabetical symbol index

Public symbol	Definition
`aic_analyzer_analyze_buffered`	Reference
`aic_analyzer_destroy`	Reference
`aic_analyzer_pair_create`	Reference
`aic_analyzer_reset`	Reference
`aic_analyzer_terminate_session`	Reference
`aic_analyzer_update_bearer_token`	Reference
`aic_collector_buffer`	Reference
`aic_collector_destroy`	Reference
`aic_collector_initialize`	Reference
`AIC_ERROR_CODE_AUDIO_CONFIG_MISMATCH`	Reference
`AIC_ERROR_CODE_AUDIO_CONFIG_UNSUPPORTED`	Reference
`AIC_ERROR_CODE_FILE_PATH_INVALID`	Reference
`AIC_ERROR_CODE_FILE_SYSTEM_ERROR`	Reference
`AIC_ERROR_CODE_INTERNAL_ERROR`	Reference
`AIC_ERROR_CODE_LICENSE_EXPIRED`	Reference
`AIC_ERROR_CODE_LICENSE_FORMAT_INVALID`	Reference
`AIC_ERROR_CODE_LICENSE_VERSION_UNSUPPORTED`	Reference
`AIC_ERROR_CODE_MODEL_DATA_UNALIGNED`	Reference
`AIC_ERROR_CODE_MODEL_INVALID`	Reference
`AIC_ERROR_CODE_MODEL_TYPE_UNSUPPORTED`	Reference
`AIC_ERROR_CODE_MODEL_VERSION_UNSUPPORTED`	Reference
`AIC_ERROR_CODE_NOT_INITIALIZED`	Reference
`AIC_ERROR_CODE_NULL_POINTER`	Reference
`AIC_ERROR_CODE_PARAMETER_OUT_OF_RANGE`	Reference
`AIC_ERROR_CODE_PROCESSING_NOT_ALLOWED`	Reference
`AIC_ERROR_CODE_SUCCESS`	Reference
`AIC_ERROR_CODE_TOKEN_UPDATE_UNSUPPORTED`	Reference
`aic_get_compatible_model_version`	Reference
`aic_get_sdk_version`	Reference
`aic_model_create_from_buffer`	Reference
`aic_model_create_from_file`	Reference
`aic_model_destroy`	Reference
`aic_model_get_id`	Reference
`aic_model_get_optimal_block_size`	Reference
`aic_model_get_optimal_sample_rate`	Reference
`aic_processor_context_create`	Reference
`aic_processor_context_destroy`	Reference
`aic_processor_context_get_audio_delay`	Reference
`aic_processor_context_get_parameter`	Reference
`aic_processor_context_reset`	Reference
`aic_processor_context_set_parameter`	Reference
`aic_processor_context_update_bearer_token`	Reference
`aic_processor_create`	Reference
`aic_processor_destroy`	Reference
`aic_processor_initialize`	Reference
`AIC_PROCESSOR_PARAMETER_BYPASS`	Reference
`AIC_PROCESSOR_PARAMETER_ENHANCEMENT_LEVEL`	Reference
`aic_processor_process`	Reference
`aic_processor_terminate_session`	Reference
`aic_vad_context_create`	Reference
`aic_vad_context_destroy`	Reference
`aic_vad_context_get_parameter`	Reference
`aic_vad_context_get_prediction_delay`	Reference
`aic_vad_context_get_raw_vad_probability`	Reference
`aic_vad_context_is_speech_detected`	Reference
`aic_vad_context_reset`	Reference
`aic_vad_context_set_parameter`	Reference
`aic_vad_context_update_bearer_token`	Reference
`aic_vad_create`	Reference
`aic_vad_destroy`	Reference
`aic_vad_initialize`	Reference
`AIC_VAD_PARAMETER_MINIMUM_SPEECH_DURATION`	Reference
`AIC_VAD_PARAMETER_SENSITIVITY`	Reference
`AIC_VAD_PARAMETER_SPEECH_HOLD_DURATION`	Reference
`aic_vad_process`	Reference
`aic_vad_terminate_session`	Reference
`AicAnalysisResult`	Reference
`AicAnalysisResult.codec_degradation`	Reference
`AicAnalysisResult.interfering_speech`	Reference
`AicAnalysisResult.noise`	Reference
`AicAnalysisResult.packet_loss`	Reference
`AicAnalysisResult.risk_score`	Reference
`AicAnalysisResult.speaker_loudness`	Reference
`AicAnalysisResult.speaker_reverb`	Reference
`AicAnalyzer`	Reference
`AicCollector`	Reference
`AicErrorCode`	Reference
`AicModel`	Reference
`AicOtelConfig`	Reference
`AicOtelConfig.enable`	Reference
`AicOtelConfig.export_interval_ms`	Reference
`AicOtelConfig.session_id`	Reference
`AicProcessor`	Reference
`AicProcessorContext`	Reference
`AicProcessorParameter`	Reference
`AicVad`	Reference
`AicVadContext`	Reference
`AicVadParameter`	Reference

Update this reference

Compare API changes against the released header and implementation, preserving correct text and anchors. Check compatibility before changing package or model versions.

SDK

API reference

Upgrades

LiveKit

AI tools

Historical migrations

Browse by task

Alphabetical symbol index

Update this reference

​Browse by task

​Alphabetical symbol index

​Update this reference

Browse by task

Alphabetical symbol index

Update this reference