![open source speech to text open source speech to text](https://www.thewindowsclub.com/wp-content/uploads/2021/08/Mary-tts-free-open-source-text-to-speech-software-windows-11-10.png)
In general, there are five main components which are necessary to build a voice assistant: The goal of this post is to show you how you can build your own voice assistant using only open source tools. Implementing the text-to-speech component.Implementing the speech-to-text component.In this post, you will learn how you can build a voice assistant using only open source tools - from backend, all the way to the frontend. So, what options do you have if you want to build a voice assistant that runs locally and ensures the security of your data? Well, let's find out.
![open source speech to text open source speech to text](https://cdn.slidesharecdn.com/ss_thumbnails/freeandopensourcetexttospeechtoolsforelearning-110116112807-phpapp02-thumbnail-4.jpg)
Leveraging platforms like Google Assistant removes the hurdle of implementing the voice processing and frontend components, but it forces you to compromise on the security of your data and the flexibility of the tools you use. We touched on the voice topic some time ago when we experimented with building a Rasa-powered Google Assistant.
![open source speech to text open source speech to text](https://images.deepai.org/publication-preview/espnet-tts-unified-reproducible-and-integratable-open-source-end-to-end-text-to-speech-toolkit-page-3-thumb.jpg)
However, unless you use hosted of-the-shelf solutions, development of voice assistants come with a whole new set of challenges that go beyond NLU and dialogue management - in addition to those, you need to take care of speech-to-text, text-to-speech components as well as the frontend. With platforms like Google Assistant and Alexa becoming more and more popular, voice-first assistants are destined to be the next big thing for customer interactions across various industries. But what if you wanted to build and assistant that runs locally and ensures the privacy of your data? You can do it using open source Rasa, Mozilla DeepSpeech and Mozilla TTS tools. Platforms like Google Assistant makes it easy to build custom voice assistants.