Usability Test 1.0 Questionnaire

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Please Rate

1. Visibility of system status

1.1 Can you clearly see and understand the app running process?

Yes           No

1 ----------- 5

• Voiceprint collection process 

• Emotion test results 

• Music playing process 

• User login process 

 

2. Match between system and the real world

2.1 Do you think this app’s interaction design allows you to see and understand the function of each function straightforwardly?

Yes           No

1 ----------- 5

• Voiceprint collection function 

• Emotional level function 

• Music function 

• User Information / Privacy Function 

• Reset app function 

2.2 Does the design of each icon in the app give you a clear understanding of its representative meaning?

Yes           No

1 ----------- 5

 

• Voiceprint collection function 

• Emotional level function 

• Music function 

• User Information / Privacy Function 

2.3 Does the order and location of the functions in the app match your usual usage habits?

Yes           No

1 ----------- 5

 

• Voiceprint collection function 

• Emotional level function 

• Music function 

• User Information / Privacy Function 

 

3．User control and freedom

3.1 Can you clearly see and understand the role of each button?

Yes           No

1 ----------- 5

• Voiceprint initialization button 

• Voiceprint capture button

• Music button

• Emotional level button 

• User information button 

• User privacy button 

• Production team button 

• Reset application button 

3.2 Do you think there are enough tips in the app to help you understand the role of each button?

Yes           No

1 ----------- 5

3.3 When you have selected the function/button that is not needed/missed, can you quickly exit the current process and reselect it?

Yes           No

1 ----------- 5

4. Consistency and standards

4.1 Do you think there is an incomprehensible design in the app?

Yes

No :___________________________________

4.2 Do you think there are words, hints or buttons in the app that you don't understand?

Yes:___________________________________

No 

4.3 Do you think there are designs in the app that might confuse the features?

Yes:___________________________________

No 

4.4 Do you think that the words, tips or buttons in your app are consistent with other apps you use in general or in accordance with your daily usage habits?

Yes

No :___________________________________

 

5. Error prevention

5.1 Is there a confirmation option in the app that allows you to confirm your choice twice during use?

Yes           No

1 ----------- 5

5.2 Can the error be resolved quickly when the app has a running error?

Yes           No

1 ----------- 5

5.3 Can you quickly give feedback to the design team when the app has a running error?

Yes           No

1 ----------- 5

6. Recognition rather than recall

6.1 Do you need to remember the function of each function/button during use?

Yes           No

1 ----------- 5

6.2 Do you need to revisit the help tips for each function/button each time you enter the app?

Yes           No

1 ----------- 5

 

7. Flexibility and efficiency of use

7.1 Can you quickly get started with the features in the app?

Yes           No

1 ----------- 5

 

• Voiceprint initialization

• Voiceprint collection 

• Music playing  

• Emotional level detection 

• User information 

7.2 Is the speed of your use of features affected by the interaction design within the app?

Yes           No

1 ----------- 5

• Voiceprint initialization

• Voiceprint collection 

• Music playing  

• Emotional level detection 

• User information 

 

8. Aesthetic and minimalist design

8.1 Do you think that the interaction design of each page in the app contains useless information?

Yes           No

1 ----------- 5

• Initialization page 

• Voiceprint collection page 

• Music playing page 

• Emotional level detection page 

• User Information Page

8.2 Do you think the design of each page in the app is simple and beautiful?

Yes           No

1 ----------- 5

• Initialization page 

• Voiceprint collection page 

• Music playing page 

• Emotional level detection page 

• User Information Page

 

9. Help users recognize, diagnose, and recover from errors

9.1 After the app has a running error, is there an error message that you can clearly see and understand?

Yes           No

1 ----------- 5

 

9.2 After the app has a running error, is there enough prompt to help you start the process again? 

Yes           No

1 ----------- 5

 

10. Help and documentation

10.1 Do you think there are enough tips in the app to help you understand the role of each feature?

Yes           No

1 ----------- 5

 

 

Respondents Information:

1.Female, 23, Office Worker

2.Female, 23, Student

3.Female, 25, Office Worker(Internet relevant)

4.Male, 22, Student

5.Male, 23, Office Worker

 

Results:

1. There is no clear explanation to users regarding voice privacy issues.

2. Users think that the app lacks freedom during use and cannot choose the voiceprint detection mode or music playing mode.

3.Music recommendation lacks personalised function.

4.When the mood detect result does not meet the user's situation, there is no re-detect function.

5.When the played music does not improve users' mood or makes users dislike, the function of fast feedback is missing.

6. No personal setting function of the app.

7. No error reporting.

8. Users do not understand the voiceprint detection function.

9. The app does not have a prompt function and cannot feedback the results to the user in time.

10. Without sufficient help tips or captions, users cannot quickly understand each feature.

11. No secondary confirmation function.

 

The advantages of Prototype 1.0 :

1. The interface is simple and there is no redundant information.

2. The design of the button icon is intuitive and conforms to users' habits, and does not require users to guess the function of the button.

 

Problems in Test 1.0:

1.The sample size of respondents is small. Due to time and manpower constraints, we only interviewed 5 users.

2. The diversity of respondents is insufficient. The respondents' age group is concentrated in 22-25 years old and lacks feedback from other age groups such as teenagers and elderly users.

3. No accessibility and sustainability evaluation.

 

Prototype 2.0:

1. Add three initial boot interfaces before the initialisation page.

Separately:

• Introduce the voiceprint technology used by the app. The App only needs to obtain users voiceprint feature to detect emotional changes, and will record any voice content. After asking the user whether to accept and confirm this, proceed to the next page.

• Add a description of the usage environment. Explain to the user that the voiceprint recognition technology adopted by the app can identify the bound user's voiceprint in a complex voice environment, so in a multi-person voice environment, the app can only recognise the user's voiceprint and detect moods fluctuation.

• Add the voiceprint detection mode setting. Users can choose to perform voiceprint detection only when using the app, or always use voiceprint detection.

2.Redesign the voiceprint detection and mood detect results interface. Add a "Re-detect" button and add the corresponding text description. This feature allows the user to re-detect when an unsatisfactory mood test result shows up.

3. Redesign the music player interface. Add three functions:

Change the auto/manual player mode. When you click this button for the first time, a function description will pop up. The auto play mode automatically plays the corresponding music after detecting the mood fluctuations. Manual play mode requires the user to select whether to play.

Add "helpful" and "unhelpful" buttons, users can directly feedback their feelings through the button when listening to music. The app will optimise the music recommendation algorithm through user feedback.

Add the "Import External Song List" button. Users can use this button to import data from other music apps. This feature will optimise the user's personalised experience.

4. Modify the account interface and add the "Settings" option. In the settings options, the user can change the voiceprint detection mode and music player mode; change personal account information; clear and reset voiceprint data.

5. Add a "Privacy Policy" button to the Accounts and Settings interface. Users can see the privacy agreement and statement here.

6. Add a "Technical Support" button to the Accounts and Settings interface. Users can view the detailed information of the voiceprint detection technology here; and can quickly feedback to the technical team through this button after the user encounters that the voiceprint cannot be detected normally and the emotional detection results are incorrect.

7. Add an error report button. In case of any problems, users can give feedback to the design team via this button.

8. Add a hint feature. When users are in the manual music play mode, the app will pop up a window prompt and sound or vibrate alert (settable) to ask if the user want to play music after detecting the mood result.

9. Add more text descriptions. When the button is clicked for the first time, the button will pop up the corresponding text description window.

 

 

Usability and Accessibility Test 2.0 Questions

1. Do you think this app is easy to use? If not, what are the disadvantages?

2. Can you quickly understand the purpose/function of this app?

3. What do you think is needed in this app for improvement?

4. Do you have any ideas or suggestions for this app?

 

Respondents Information:

Female, 51, Office Worker

Female, 21, Student

Female, 15, Student

Male, 49, Office Worker

Male, 23, Student (color blind)

Male, 23, Office worker

 

Results:

Female, 51, Office Worker:

1. It feels very simple and has few functions.

2. Respondent doesn't quite understand the function of this app and doesn’t know what it can do. And she knows nothing about the voiceprint technology.

3. Before the initialization page, it may be a bit easier to understand if there is a scenario with pictures and explanation.

4.Respondent hopes that the app's music library can be more diverse, including not only popular music, but also traditional folk music, such as erhu or Peking Opera.

 

Female, 21, Student

1. Easy to use. But the interface is too simple to look good.

2. Respondents are interested in this app.

3. Interfaces need to be beautified. It would be better for user to customize the interface theme color.

 

Female, 15, Student

1. It is easy to adapt.

2. Interested in this app.

3. Too many text description.

 

Male, 49, Office Worker

1. The interface looks very clean.

2. Respondent does not understand the design goals and features of the app and is not interested in this app.

 

Male, 23, Student (color blind)

1.Respondent was not affected in using this app. But he thought it would be good for users to be able to customize the interface theme color..

2.The interface needs to be beautified. The textual description is not reasonable enough.

 

Male, 23, Office worker

1.The interface is monotonous and needs to beautify.

2.Need to add more customization features.

3.Some basic music features are missing, such as “search”。