Emotion & Tone(BETA)

Enable this model configuration to analyze speaker's tone (acoustic) & emotions based on spoken text (Lexical Emotion Analysis)


Emotion Analysis

The Emotion Analysis model will help you understand and interpret speaker emotions in a conversation or text. It is designed to understand human conversation in the form or free text or spoken text and is designed after the emotion wheel.

The Emotion wheel describes eight basic emotions: anger, anticipation, disgust, fear, joy, sadness, surprise, and trust.

Emotion Types

Types of Emotions detected by enabling this model configuration in the Speech Analytics API:

Admiration Amusement Anger Annoyance Approval Caring Confusion Curiosity Desire Disappointment Disapproval Disgust Embarrassment Excitement Fear Gratitude Grief Joy Love Nervousness Optimism Pride Realization Relief Remorse Sadness Surprise Neutral

Tone Analysis

Tone Analysis suggests speaker emotion using only audio clues. Sometimes the speaker may show emotions in the tone of the response and this is important to capture to get the overall sentiment/mood of the conversation which cannot be extracted from conventional Lexical Emotion analysis.

Marsview's propritary Tone Analysis AI can detect the intonations in the tone to the statement level.

Types of Tone

Marsview is capable of detecting the following tones in an audio file:

negative positive neutral slightly-negative


Example Request

curl --location --request POST 'https://api.marsview.ai/cb/v1/conversation/compute' \
--header 'Content-Type: application/json' \
--header "Authorization: {{Insert Auth Token With Type}}" \
--data-raw '{
        "txnId": "{{Insert txn ID}}",
                    "automatic_punctuation" : true,
                    "custom_vocabulary":["Marsview", "Communication"],

Example Metadata Response

"data": {
    "emotion": [
            "transcript": "Good evening teresa.",
            "startTime": 1390,
            "endTime": 2690,
            "speaker": "1",
            "tone": {
                "value": "calm",
                "confidence": 0.9030694961547852
            "emotion": {
                "confidence": 0.9549336433410645,
                "value": "JOY"
            "wordsPerMinute": 92.3076923076923

Response Object

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