The document provides guidelines for building an effective voice biometric system, emphasizing its growing popularity in industries like banking for secure authentication. Key best practices include defining objectives, identifying stakeholders, determining use cases, enrolling users, planning for devices and languages, and deciding on deployment strategies. It concludes by highlighting the importance of user consent and storage decisions for voice samples.

1. How to build a voice biometric system?
Voice biometrics allows businesses to authenticate people using voice commands
observed Bahaa Abdul Hadi. It is a simple and effective way of authentication that is
becoming popular. If you plan to implement voice biometrics, it is important to plan it the
right well. To help you, we list out the best practices to follow.
Best practices for building an effective voice biometric system
Voice biometrics uses the voice of humans to identify and authenticate them. Banks,
finance companies, and many other firms are using voice biometrics since it simple and
secure. If you are planning to implement voice biometrics, here are some best practices
to follow.
1) List our your objectives
The first step is to list out your business objectives. The objectives can be defined
based on how you think voice biometrics will solve problems you are facing.
2) Identify stakeholders
You need to identify the stakeholders in the process. They include your IT team
members, security team, and the customer service team who interact with customers. It
is essential to involve all the stakeholders in the process.
3) Know the use cases
You must list out the use cases for the voice biometric authentication system. Both
active and passive authentication is possible, and you must determine which you will
use. Keep in mind factors like the environment in which the users work and the channel
used for contact.
4) Enrolling users – the process
A key step is the process of enrolling users. The voice biometric samples of users need
to be stored. It is an important step to create the database for authentication. You must
inform and educate them on the importance of enrolling their voices. If you are using
active voice authentication, you must inform them on how it works. Consent of users is
essential before you take their voice samples.
5) Plan the devices and languages

2. In case you operate in multiple countries, you may have to consider voice authentication
in different languages. Next, you need to work out how the voice authentication will be
done and what devices will be used. Users may use the telephone, a mobile phone, or
even wearables. Your system must accommodate all these devices.
6) Where will it be deployed?
You can deploy the system on a local server or on the cloud. You need to plan this
keeping in mind various factors. It is also important to decide how long the user voice
samples will be stored. Processes related to backup also must be decided.
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