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Date May 2021 Marks available 6 Reference code 21M.1.SL.TZ0.3
Level SL Paper 1 Time zone no time zone
Command term Analyse Question number 3 Adapted from N/A

Question

Voice simulation

Lyrebird voice-cloning software was created by three university students from Montreal. This technology was originally developed to change the lives of people who have lost their voice. These people can use the software to create a new voice by choosing one from samples provided in the software.

However, Lyrebird can also clone voices. Lyrebird claims that it can clone a person’s voice in just 60 seconds. Users only need to access the website, create an account, and generate a voice print by repeating a number of predetermined sentences. Although the cloning is not perfect, the developers of Lyrebird believe that both the time to clone the voice and the quality of the cloning will improve in the future.

The software allows the user to alter the speech and add emotion (such as, anger, elation, and surprise), increasing the ways in which it can be used.

The initial voice print for the cloning process requires the most time and a lot of processing power. However, creating speech from the voice print is a simple process, generating around 1000 sentences almost instantly. The voice print is saved as a compressed audio file.

Lyrebird has considered the ethical issues regarding biometrics* and acknowledges that it highlights some key societal issues. Lyrebird has taken the decision to make the software available to all in an attempt to address these issues.


* biometrics: a means of personal identification through analysis of unique physical traits or behavioural characteristics (for example, through voice patterns or fingerprints)

Lyrebird uses a person’s voice print to determine their identity.

Identify three other methods of biometric identification that could be used to determine a person’s identity.

[3]
a.i.

A person’s voice print can be compressed. 

Identify three problems that may result from compressing the voice print.

[3]
a.ii.

Analyse whether it would be appropriate for Lyrebird to release the biometric data of a user to a third party.

[6]
b.

To what extent do the benefits of using Lyrebird’s voice-cloning software outweigh the concerns that may arise from its use?

[8]
c.

Markscheme

Answers may include:

 

Award [1] for each method of biometric feature identified up to [3] marks.

a.i.

Answers may include:

 

 Award [1] for each problem that may result from compressing the voice print identified up to [3] marks.

a.ii.

Answers may include:

It would be appropriate:

It would not be appropriate:

 

Keywords: legality, regulation, policies, privacy, anonymity, security, transparency, ownership, access, sharing, consent, data, GDPR, power, ethics, values

b.

Answers may include:

Benefits may include:

Concerns may include:

 

In part (c) of this question it is expected there will be a balance between the terminology related to digital systems and the terminology related to social and ethical impacts.

Keywords: health, privacy, anonymity, security, transparency, ownership, access, authentication, sharing, expression, identity, power, values

 

Refer to SL/HL paper 1, part c markbands when awarding marks. These can be found under the "Your tests" tab > supplemental materials > Digital society markbands and guidance document.

c.

Examiners report

[N/A]
a.i.
[N/A]
a.ii.
[N/A]
b.
[N/A]
c.

Syllabus sections

Topic 3: Content » 3.1 Data
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Topic 2: Concepts » 2.4 Power
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