Edge Impulse PerformanceCalibration API

openapi: 3.2.0
info:
  title: Edge Impulse Performance Calibration API
  version: 1.0.0
  description: 'Operations tagged PerformanceCalibration across 2 of this provider''s published API definitions: edge-impulse-openapi.yml, edge-impulse-studio-openapi-2026-09-06.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://studio.edgeimpulse.com/v1
tags:
- name: PerformanceCalibration
paths:
  /api/{projectId}/performance-calibration/status:
    get:
      summary: Get status
      description: Get performance calibration status
      operationId: getPerformanceCalibrationStatus
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPerformanceCalibrationStatusResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/ground-truth:
    get:
      summary: Get ground truth
      description: Get performance calibration ground truth data
      operationId: getPerformanceCalibrationGroundTruth
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPerformanceCalibrationGroundTruthResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/raw-result:
    get:
      summary: Get raw result
      description: Get performance calibration raw result
      operationId: getPerformanceCalibrationRawResult
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: File
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPerformanceCalibrationRawResultResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/parameter-sets:
    get:
      summary: Get parameter sets
      description: Get performance calibration parameter sets
      operationId: getPerformanceCalibrationParameterSets
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: File
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPerformanceCalibrationParameterSetsResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/parameters:
    get:
      summary: Get parameters
      description: Get performance calibration stored parameters
      operationId: getPerformanceCalibrationSavedParameters
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPerformanceCalibrationParametersResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    post:
      summary: Save performance calibration parameters
      description: Set the current performance calibration parameters
      operationId: setPerformanceCalibrationSavedParameters
      tags:
      - PerformanceCalibration
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PerformanceCalibrationSaveParameterSetRequest'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericApiResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    delete:
      summary: Clear performance calibration parameters
      description: Clears the current performance calibration parameters
      operationId: deletePerformanceCalibrationSavedParameters
      tags:
      - PerformanceCalibration
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericApiResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/wav:
    get:
      summary: Get WAV file
      description: Get the synthetic sample as a WAV file
      operationId: getWavFile
      tags:
      - PerformanceCalibration
      x-middleware:
      - SupportsRange
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: Wav file
          content:
            audio/wav:
              schema:
                type: string
                format: binary
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/files:
    post:
      summary: Upload Performance Calibration Audio files
      description: Upload a zip files with a wav file and its Label metadata to run performance calibration on it.
      operationId: uploadLabeledAudio
      tags:
      - PerformanceCalibration
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/PerformanceCalibrationUploadLabeledAudioRequest'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PerformanceCalibrationUploadLabeledAudioResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/performance-calibration/clear:
    post:
      summary: Clear Performance Calibration state
      description: Deletes all state related to performance calibration (used in tests for example).
      operationId: clearPerformanceCalibrationState
      tags:
      - PerformanceCalibration
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericApiResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
  /api/{projectId}/post-processing/results:
    get:
      summary: Get post processing results
      description: Get results of most recent post processing run
      operationId: getPostProcessingResults
      tags:
      - PerformanceCalibration
      x-middleware:
      - AllowsReadOnly
      parameters:
      - $ref: '#/components/parameters/ProjectIdParameter'
      - $ref: '#/components/parameters/OptionalImpulseIdParameter'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetPostProcessingResultsResponse'
      security:
      - ApiKeyAuthentication: []
      - JWTAuthentication: []
      - JWTHttpHeaderAuthentication: []
    servers:
    - url: https://studio.edgeimpulse.com/v1
components:
  schemas:
    PerformanceCalibrationParameters:
      type: object
      required:
      - type
      - version
      properties:
        type:
          type: string
          description: The post-processing algorithm type.
          enum:
          - standard
        version:
          type: integer
          description: The version number of the post-processing algorithm.
          example: 1
        parametersStandard:
          $ref: '#/components/schemas/PerformanceCalibrationParametersStandard'
    PerformanceCalibrationParametersStandard:
      type: object
      required:
      - averageWindowDurationMs
      - detectionThreshold
      - suppressionMs
      properties:
        averageWindowDurationMs:
          type: number
          description: The length of the averaging window in milliseconds.
          example: 1000
        detectionThreshold:
          type: number
          description: The minimum threshold for detection, from 0-1.
          example: 0.8
        suppressionMs:
          type: number
          description: The amount of time new matches will be ignored after a positive result.
          example: 500
    PerformanceCalibrationUploadLabeledAudioResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - uploadKey
        properties:
          uploadKey:
            type: string
    GetPerformanceCalibrationParameterSetsResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - parameterSets
        properties:
          parameterSets:
            type: array
            items:
              $ref: '#/components/schemas/PerformanceCalibrationParameterSet'
    PerformanceCalibrationGroundTruth:
      type: object
      required:
      - type
      - labelIdx
      - labelString
      - start
      - length
      properties:
        type:
          type: string
          description: Whether this region is a single sample, a region of background noise, or a region of background noise that contains samples.
          enum:
          - sample
          - noise
          - combined_noise
        labelIdx:
          type: integer
          description: Index of the label in the array of all labels
        labelString:
          type: string
          description: String label of the sample
        start:
          type: integer
          description: The start time of the region in milliseconds
        length:
          type: integer
          description: The length of the region in milliseconds
        samples:
          type: array
          description: If the region contains samples, all the samples within this region
          items:
            type: object
            required:
            - id
            - start
            - length
            - idx
            properties:
              id:
                type: integer
                description: The ID of the samples in Studio
              start:
                type: number
                description: The start time of the sample in milliseconds
              length:
                type: number
                description: The length of the sample in milliseconds
              idx:
                type: integer
                description: For debugging. The index of the sample in the original Y array.
    GetPerformanceCalibrationStatusResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - available
        properties:
          available:
            type: boolean
          unsupportedProjectError:
            type: string
            description: If the current project is unsupported by performance calibration, this field explains the reason why. Otherwise, it is undefined.
          options:
            $ref: '#/components/schemas/StartPerformanceCalibrationRequest'
    PerformanceCalibrationSaveParameterSetRequest:
      type: object
      required:
      - params
      properties:
        params:
          $ref: '#/components/schemas/PerformanceCalibrationParameters'
    GenericApiResponse:
      type: object
      required:
      - success
      properties:
        success:
          type: boolean
          description: Whether the operation succeeded
        error:
          type: string
          description: Optional error description (set if 'success' was false)
    StartPerformanceCalibrationRequest:
      type: object
      required:
      - backgroundNoiseLabel
      properties:
        backgroundNoiseLabel:
          type: string
          description: The label used to signify background noise in the impulse
        otherNoiseLabels:
          type: array
          items:
            type: string
          description: Any other labels that should be considered equivalent to background noise
        uploadKey:
          type: string
          description: The key of an uploaded sample. If not present, a synthetic sample will be created.
        sampleLengthMinutes:
          type: number
          description: The length of sample to create (required for synthetic samples)
    GetPerformanceCalibrationGroundTruthResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - samples
        properties:
          samples:
            type: array
            items:
              $ref: '#/components/schemas/PerformanceCalibrationGroundTruth'
    PerformanceCalibrationDetection:
      type: object
      required:
      - time
      - label
      properties:
        time:
          type: integer
          description: The time of the detection in milliseconds
        label:
          type: string
          description: The label that was detected
    PerformanceCalibrationUploadLabeledAudioRequest:
      type: object
      required:
      - zip
      properties:
        zip:
          type: string
          format: binary
    GetPerformanceCalibrationParametersResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        properties:
          params:
            $ref: '#/components/schemas/PerformanceCalibrationParameters'
    GetPerformanceCalibrationRawResultResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - detections
        properties:
          detections:
            type: array
            items:
              $ref: '#/components/schemas/PerformanceCalibrationRawDetection'
    GetPostProcessingResultsResponse:
      allOf:
      - $ref: '#/components/schemas/GenericApiResponse'
      - type: object
        required:
        - variableNames
        - objectiveNames
        - variables
        - objectives
        properties:
          variableNames:
            type: array
            description: The names of the variables being tuned, in column order.
            items:
              type: string
          objectiveNames:
            type: array
            description: The names of the objectives being minimized, in column order.
            items:
              type: string
          variables:
            type: array
            description: The variable values representing the pareto front of optimal solutions.
            items:
              type: array
              items:
                type: number
          objectives:
            type: array
            description: The objective values that correspond with the variables.
            items:
              type: array
              items:
                type: number
    PerformanceCalibrationParameterSet:
      type: object
      required:
      - detections
      - isBest
      - labels
      - stats
      - aggregateStats
      - params
      - windowSizeMs
      properties:
        detections:
          type: array
          description: All of the detections using this parameter set
          items:
            $ref: '#/components/schemas/PerformanceCalibrationDetection'
        isBest:
          type: boolean
          description: Whether this is considered the best parameter set
        labels:
          type: array
          description: All of the possible labels in the detections array
          items:
            type: string
        aggregateStats:
          type: object
          required:
          - falsePositiveRate
          - falseNegativeRate
          properties:
            falsePositiveRate:
              type: number
            falseNegativeRate:
              type: number
        stats:
          type: array
          items:
            type: object
            required:
            - label
            - truePositives
            - falsePositives
            - falseNegatives
            - trueNegatives
            - falsePositiveRate
            - falseNegativeRate
            - wrongMatches
            - falsePositiveTimes
            - falseNegativeTimes
            properties:
              label:
                type: string
              truePositives:
                type: integer
              falsePositives:
                type: integer
              falseNegatives:
                type: integer
              trueNegatives:
                type: integer
              falsePositiveRate:
                type: number
              falseNegativeRate:
                type: number
              falsePositiveDetails:
                type: array
                description: The details of every false positive detection.
                items:
                  $ref: '#/components/schemas/PerformanceCalibrationFalsePositive'
              falseNegativeTimes:
                type: array
                description: The times in ms at which false negatives occurred. These correspond to specific items in the ground truth.
                items:
                  type: number
        params:
          $ref: '#/components/schemas/PerformanceCalibrationParameters'
        windowSizeMs:
          type: number
          description: The size of the input block window in milliseconds.
    PerformanceCalibrationFalsePositive:
      type: object
      required:
      - type
      - detectionTime
      properties:
        type:
          type: string
          enum:
          - incorrect
          - duplicate
          - spurious
          description: The type of false positive. Incorrect is when a detection matches the wrong ground truth. Duplicate is when the same ground truth was detected more than once. The first correct detection is considered a true positive but subsequent detections are considered false positives. Spurious is when the detection was not associated with any ground truth.
        detectionTime:
          type: integer
          description: The time of the detection in milliseconds
        groundTruthLabel:
          type: string
          description: The label of any associated ground truth
        groundTruthStart:
          type: number
          description: The start time of any associated ground truth
        sampleIds:
          type: array
          description: All of the sample IDs in the affected region
          items:
            type: integer
    PerformanceCalibrationRawDetection:
      type: object
      required:
      - start
      - end
      - result
      properties:
        start:
          type: integer
          description: The start time of the detected window in milliseconds
        end:
          type: integer
          description: The end time of the detected window in milliseconds
        result:
          type: array
          items:
            type: number
  parameters:
    ProjectIdParameter:
      name: projectId
      in: path
      required: true
      description: Project ID
      schema:
        type: integer
    OptionalImpulseIdParameter:
      name: impulseId
      in: query
      required: false
      description: Impulse ID. If this is unset then the default impulse is used.
      schema:
        type: integer
  securitySchemes:
    ApiKeyAuthentication:
      type: apiKey
      in: header
      name: x-api-key
    JWTAuthentication:
      type: apiKey
      in: cookie
      name: jwt
    JWTHttpHeaderAuthentication:
      type: apiKey
      in: header
      name: x-jwt-token
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: /v1/oauth/authorize
          tokenUrl: /v1/oauth/token
          scopes:
            openid: Access to basic profile information
            email: Access to email address
            profile: Access to full profile information
        implicit:
          authorizationUrl: /v1/oauth/authorize
          scopes:
            openid: Access to basic profile information
            email: Access to email address
            profile: Access to full profile information
        password:
          tokenUrl: /v1/oauth/token
          scopes:
            openid: Access to basic profile information
            email: Access to email address
            profile: Access to full profile information
        clientCredentials:
          tokenUrl: /v1/oauth/token
          scopes:
            openid: Access to basic profile information
            email: Access to email address
            profile: Access to full profile information
x-refined-from:
- edge-impulse-openapi.yml
- edge-impulse-studio-openapi-2026-09-06.yml