Given the increasing number of “free” speech to text solutions, we look at the potential benefits of using freeware and open source software and discuss the main reasons why these “free” approaches can often be problematic for speech recognition users.


In some cases the terms freeware and open source are used interchangeably, however there are important differences. With freeware, the source code is usually not made available. So, whilst freeware software can be used free of charge, any modification, redistribution or other improvements often cannot be done without getting permission from the software’s author.
As an example, two of the most common types of freeware are Skype and Adobe Acrobat Reader. While both programs are free to use, their source codes are unavailable to the public. Many developers typically market freeware with the intention of encouraging users to buy a more capable version.
When it comes to open source software, the source code is freely available for anyone to manipulate. A non-profit organisation, the Open Source Initiative (OSI), supports the development of open source software. The body asserts that any open source software must allow for free redistribution and enable it to be modified and distributed in a different format from the original software.
Over the last few years open source has certainly come to the fore as a force within the business software community. In addition to the cost and source code attractions, open source has a number of other benefits, including:
As with many things in life, “a “free” service often comes with a number of strings attached. When it comes to speech recognition software, there are many “free” options out there. However, while these can certainly be useful for creating short text messages or emails, they have a number of drawbacks that make them unsuitable for the professional environments where speech to text solutions are commonly used. These include:
So, for minor text creation requirements the freeware/open source options might well be adequate. However, for the more detailed and complex document creation requirements typically found in professional environments, where there is also a need to store documents securely and ensure compliance with legal requirements, the current range of “free” speech to text solutions are likely to come up short.
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