Orpheus

Enhancing Hands-free Shower Singing with AI Voice Assistant

Orpheus

Enhancing Hands-free Shower Singing with AI Voice Assistant

Skills

UX Research

UX Testing

UX/UI Design

Prototyping

Illustration

Research Methods

User Testing

UEQ

Questionnaires

Interview

Tools

ProtoPie

Figma

Adobe Illustrator

CapCut

Time

April - July 2025

Skills

UX Research

UX Testing

UX/UI Design

Prototyping

Illustration

Research Methods

User Testing

UEQ

Questionnaires

Interview

Tools

ProtoPie

Figma

Adobe Illustrator

CapCut

Time

April - July 2025

Overview & Challenge

Like many others, I love singing in the shower, it’s relaxing and refreshing.

However, adjusting songs or volume with wet hands can be inconvenient. This inspired me to explore hands-free interaction and design a reliable AI voice assistant that works smoothly in a constrained shower environment.

Overview & Challenge

Like many others, I love singing in the shower, it’s relaxing and refreshing.

However, adjusting songs or volume with wet hands can be inconvenient. This inspired me to explore hands-free interaction and design a reliable AI voice assistant that works smoothly in a constrained shower environment.

Overview & Challenge

Like many others, I love singing in the shower, it’s relaxing and refreshing.

However, adjusting songs or volume with wet hands can be inconvenient. This inspired me to explore hands-free interaction and design a reliable AI voice assistant that works smoothly in a constrained shower environment.

Process

Process

Research

Research

Explored users’ shower singing habits and identified key pain points

Design

Design

Created user flows and designed key features for hands-free interaction

Prototyping

Prototyping

Built a KTV shower system with key functions

Testing

Testing

Conducted one pre-test and two rounds of formal user testing

Iteration

Iteration

Refined prototype and testing strategies based on findings

Research

Research

Desk Research & Interview

Desk Research & Interview

Combining Desk Research with User Interviews to Uncover Real User Needs

Combining Desk Research with User Interviews to Uncover Real User Needs

60%

60%

people enjoy singing in the shower

people enjoy singing in the shower

80%

80%

people have ever brought devices into bathroom

people have ever brought devices into bathroom

52%

52%

use voice assistants in hands-free scenarios (e.g., driving)

use voice assistants in hands-free scenarios (e.g., driving)

4.2 Billion

4.2 Billion

voice assistants used worldwide

voice assistants used worldwide

Pain Points & Insight & Solution

Pain Points & Insight & Solution

Based on interviews and observations, key pain points were identified and translated into insights that informed the design decisions.

Based on interviews and observations, key pain points were identified and translated into insights that informed the design decisions.

" Difficult to change songs with wet body "

Manual Control

Stopping to change songs, search, or adjust the volume disrupted the showering flow.

Voice Assistant

Enabled hands-free control to keep showering flow.

" Sometimes I don’t know what to sing. "

Manual Search

Users had to manually browse songs, breaking the showering flow.

AI Recommendation

Delivered personalized, mood-based song suggestions to spark inspiration.

" I want to know the song lyrics. "

No Lyrics Support

Not knowing the lyrics made it hard to sing along.

Karaoke-Style Lyrics

Displayed real-time lyrics to support smooth sing-along.

Persona

This persona captures one representative user group and helps frame how features such as hands-free control, karaoke-style lyrics, and AI recommendations fit into everyday shower routines.

This persona captures one representative user group and helps frame how features such as hands-free control, karaoke-style lyrics, and AI recommendations fit into everyday shower routines.

User Journey Map

From tiredness to relaxation: an AI-assisted shower singing experience

From tiredness to relaxation: an AI-assisted shower singing experience

Design

Design

AI Voice Assitant + Karaoke = Orpheus

AI Voice Assitant + Karaoke = Orpheus

Orpheus brings together AI voice interaction and karaoke to create a hands-free shower singing experience that adapts to users’ mood and context.

AI Assistant

Karaoke

AI Assistant

Karaoke

Mood-Based Song Recommendation

Mood-Based Song Recommendation

Through voice interaction with the AI, users can express their mood and receive song recommendations that match their emotional state.

happy

high

relax

sad

Vocal & Instrumental Mode

Vocal & Instrumental Mode

Users can switch between vocal and instrumental modes based on how they prefer to sing or listen, using either manual controls or the AI voice assistant through voice commands such as “Echo voice” and “Echo music.”

The AI assistant : Echo

Change between vocal & instrumental mode

Wake-up hint: "Hey Echo"

Voice Interaction

Design Library

Design Library

Design Library

Core interaction components for hands-free karaoke shower system

Core interaction components for hands-free karaoke shower system

Design Library

Voice Interaction

AI assistant:

Echo

Vocal & Instrumental Mode Switch

Wake-up Hint:

"Hey Echo"

Project

About

Skills

Contact

Prototype

Voice-Controlled Song Order

AI Mood Recommendation

"Hey Echo,
I feel chill today"

"Hey Echo, I feel chill today"

"Hey Echo,
I feel chill today"

Directly order songs through voice commands.

Or simply express your mood by speaking to receive AI recommendations and start singing with minimal interruption.

Directly order songs through voice commands.

Or simply express your mood by speaking to receive AI recommendations and start singing with minimal interruption.

Vocal & Instrumental Mode

"Echo music" &
"Echo voice"

"Echo music" & "Echo voice"

"Echo music" &
"Echo voice"

Switching between vocal and instrumental modes simply by speaking to the assistant. User can keep their hands free and maintaining the flow while showering.

Switching between vocal and instrumental modes simply by speaking to the assistant. User can keep their hands free and maintaining the flow while showering.

Manual Control

Manual Song Search

Manual Song Search

Type to search and select songs manually, allowing comparison between traditional touch interaction and voice-assisted control during testing.

Type to search and select songs manually, allowing comparison between traditional touch interaction and voice-assisted control during testing.

User Test

User Test

Testing Setup

Testing Setup

" Do you like to sing in the shower? "

" Do you like to sing in the shower? "

12

people

people

22-35

years old

years old

2

rounds of testing

rounds of testing

Answer Yes

Answer Yes

Criteria

In Real Bathroom

The user testing was conducted in a dry bathroom setup, simulating a real shower environment.

The user testing was conducted in a dry bathroom setup, simulating a real shower environment.

Recommendation Strategy

Recommendation Strategy

Interaction Flow for User Testing

Interaction Flow for User Testing

I assumed that…

I assumed that…

Control Method

Control Method

Users prefer using voice control to select songs and switch between vocal and instrumental modes.

Song Selection

Song Selection

Voice Control

Voice Control

Manual Control

Manual Control

Mode Switching

Mode Switching

Voice Control

Voice Control

Manual Control

Manual Control

Recommendation Acceptance

Recommendation Acceptance

Users are more willing to accept unfamiliar song recommendations when they are based on their current mood.

Mood-based

Random

Have Choice

Have Choice

No Choice

No Choice

Test Result

UEQ Results: Overall Rated Between “Excellent” and “Good”

Participants expressed enjoyment and showed acceptance of the AI-based features

Participants expressed enjoyment and showed acceptance of the AI-based features

Bryan | 26

“I won’t leave the bathroom, because I will keep singing.”

“I won’t leave the bathroom, because I will keep singing.”

“Really want one in my bathroom!”

“Really want one in my bathroom!”

Philipp | 25

Laura | 24

(still singing after the test and way back home… )

(still singing after the test and way back home… )

Control Method

All participants preferred using the AI voice assistant for both song selection and mode switching, highlighting the importance of hands-free interaction in the shower context.

song selection

100%

AI

100% prefer AI for song selection

(over manual control)

switch modes

100%

AI

100% prefer AI to switch modes

(instead of touch)

Recommendation Acceptance

Offering choice reduces hesitation and encourages exploration, making users more open to AI-recommended songs they are not familiar with.

All participants preferred using the AI voice assistant for both song selection and mode switching, highlighting the importance of hands-free interaction in the shower context.

Control Method

Offering choice reduces hesitation and encourages exploration, making users more open to AI-recommended songs they are not familiar with.

Recommendation Acceptance

Reflection

Reflection

This project extends my earlier bathroom product design about singing in the shower. I led the end-to-end process, from prototyping and testing to analysis, especially gaining insights into UX for AI assistants in confined spaces and learning how to prototype AI-driven interactions.

Future improvements will focus on enhancing system functionality, expanding user testing, and validating performance in real wet bathroom conditions.

This experience strengthened my passion for creating intuitive, engaging AI interactions for everyday life.

Rachel Tu

Feel free to connect!

© 2025 Rachel Tu

Rachel Tu

Feel free to connect!

© 2025 Rachel Tu

Rachel Tu

Feel free to connect!

© 2025 Rachel Tu