Voice Judge

Retrieve audio-native voice quality scores for your voice agent calls.

The Voice Judge evaluates voice agent calls directly from audio recordings, scoring each call across 10 quality dimensions. Scores measure the voice experience - pronunciation, clarity, pacing, interruption handling - independent of conversational logic or agent prompting.

Results become available through the per-service API after a call has been evaluated.

Endpoints

List Recent Voice Judge Results

Recent voice-judge results for a service

get

Returns the most recent per-call voice-judge scores for one service, ordered newest first. Produced by the Databricks voice_judge job (stereo audio → Gemini 3.5 Flash → 10-dimension rubric). Used by the Agent Readiness page to populate Voice Quality criterion cards.

Latency: 500ms-2s (reads from analytics warehouse, not OLTP).

Default limit: 20. Max 100.

Authorizations

AuthorizationstringRequired

API key issued via POST /v1/{workspace_id}/api-keys. Pass the returned api_key value as a Bearer token.

Path parameters

workspace_idstring · uuidRequired

service_idstring · uuidRequired

Service UUID

Query parameters

limitinteger · min: 1 · max: 100Optional

Max rows to return (default 20, max 100)

Default: 20

offsetintegerOptional

Offset for pagination (default 0)

Default: 0

Responses

200

Voice judge rows (newest first)

application/json

service_idstring · uuidRequired

countintegerRequired

422

Validation Error

application/json

503

Analytics warehouse not configured or transiently unavailable

get/v1/{workspace_id}/services/{service_id}/voice-judge/recent

GET /v1/{workspace_id}/services/{service_id}/voice-judge/recent HTTP/1.1
Host: platform.api-us.concurrence.com
Authorization: Bearer YOUR_SECRET_TOKEN
Accept: */*

{
  "service_id": "123e4567-e89b-12d3-a456-426614174000",
  "count": 1,
  "items": [
    {
      "call_sid": "text",
      "call_entity_id": "123e4567-e89b-12d3-a456-426614174000",
      "service_id": "123e4567-e89b-12d3-a456-426614174000",
      "latency_dead_air_score": 1,
      "pronunciation_score": 1,
      "clarity_score": 1,
      "filler_silence_score": 1,
      "interruption_handling_score": 1,
      "audio_consistency_score": 1,
      "pacing_score": 1,
      "warmth_tone_score": 1,
      "accent_quality_score": 1,
      "voice_identity_score": 1,
      "overall_score": 1,
      "critical_count": 1,
      "flag_count": 1,
      "warning_count": 1,
      "judge_json": "text",
      "computed_at": "2026-01-01T00:00:00.000Z"
    }
  ]
}

Returns the most recent per-call voice quality scores for a service, ordered newest first.

Score Interpretation

All dimension scores range from 0.0 to 1.0:

Score Range	Severity	Meaning
0.75 - 1.0	None	Meets the bar
0.5 - 0.74	Warning	Minor quality pattern detected
0.25 - 0.49	Flag	Notable quality issue
0.0 - 0.24	Critical	Significant quality problem

Error Responses

Status	Description
404	Service not found in this workspace
503	Voice judge result data is temporarily unavailable

A 200 response with an empty items list means no evaluated calls are available for this service. For a 503 response, retry with backoff.

Dimensions

The voice judge evaluates 10 dimensions, grouped by priority:

P0 - Critical Quality

• Latency and Dead Air - Response latency between turns. Flags prolonged silence (>3s between turns) and extended processing waits without verbal acknowledgment.

• Pronunciation - Correct pronunciation of medical terms, drug names, dates, numbers, and patient names. Critical on any factual read-back error.

• Clarity - Speech intelligibility and clean audio output. Critical on garbled or unintelligible speech.

P1 - Important Quality

• Filler and Silence Management - Graceful handling of processing pauses. Verbal acknowledgment before a pause, no dead air during the wait, no repeated filler phrases, and filler that matches the result being delivered.

• Interruption Handling - Clean barge-in behavior. Agent stops when the caller speaks, no false triggers on background noise, smooth recovery after being interrupted.

• Audio Consistency - Absence of volume spikes, pitch anomalies, mid-word cutoffs, or inconsistent voice timbre across turns.

P2 - Quality Polish

• Pacing - Conversational speech rate with appropriate pauses between pieces of information and slower delivery for sensitive content.

• Warmth and Tone - Emotional appropriateness matched to the caller's state. Flags flat affect, tonal mismatches, or inappropriate emotional tone.

• Accent and Language Quality - Language and accent match to the caller. Critical on wrong language delivery.

• Voice Identity - Consistent agent voice and persona across the entire call.