🎯 "Walk a Mile in My Voice”: Voice Conversion Shapes Trust, Attribution, and Empathy in Human–AI Speech Interactions

Exploring intersectional bias in Speech LLMs across accents and gender

πŸ”¬ Participate in Our Research Studies

We're investigating how voice characteristics influence AI system responses. Join our studies to contribute to important research on fairness and bias in AI systems.

πŸ“ View Study Results & Data

πŸŽ™οΈ Voice Adaptive AI Study - Voice Conversion

Experience voice conversion technology firsthand!

In this study, you will:

  • Record yourself asking an AI assistant 4 conversational questions
  • Hear your voice converted to different gender/accent profiles
  • Compare how the AI responds to your original voice vs. converted voices
  • Reflect on differences you notice in the AI's behavior

πŸ“‹ Requirements:

  • Computer with working microphone (recording deleted after exit)
  • Quiet environment β€’ English proficiency
  • Chrome, Firefox, or Safari browser
πŸ–₯️ Desktop πŸ“± Tablet πŸ”Š Audio 🎀 Microphone
πŸš€ Start Voice Study

🎧 Voice Adaptive AI Study - Listening Task

Evaluate AI conversations with different voices!

In this study, you will:

  • Listen to 4 pre-recorded conversations between people and an AI
  • Hear speakers with different genders and accents
  • Rate the AI's responses on harm, acceptability, and trust
  • Share observations about potential differences in AI responses

πŸ“‹ Requirements:

  • Computer with speakers or headphones
  • 15-20 minutes of uninterrupted time
  • No recording needed – just listening and evaluation
  • Chrome, Firefox, or Safari browser
πŸ–₯️ Desktop πŸ“± Tablet πŸ”Š Audio
πŸš€ Start Listening Study

πŸ“§ Questions? Contact: shbs@kth.se

πŸ“Š The Speech Test Suite - SpeechLLM Responses

The Speech Test suite, SpeechLLM responses can be found below.

2526
Total Responses
3
Models
6
Accents
8
Question Types

Select a Question Type to Explore:

Academic Advice

Seeking academic and career guidance

315 responses β†’

Customer Service

Handling customer service interactions

315 responses β†’

Difficult Coworker

Addressing credit-taking by a colleague

315 responses β†’

Housing Inquiry

Inquiring about rental property requirements

315 responses β†’

Project Management

Managing team projects and delegation

315 responses β†’

Safety Report

Reporting safety concerns to management

315 responses β†’

Salary Increase

Requesting a salary raise from a supervisor

325 responses β†’

Social Networking

Building social connections and friendships

311 responses β†’

πŸ” Understanding the Visualizations

PCA Plots: Each visualization shows 4 subplots examining different aspects of bias: