Speech Synthesizer Text to Speech Engines
A number of the NCH Swift Sound professional audio software applications include Speech Synthesizer or Text to Speech functions. These include:
Voices
By default our software uses Microsoft Sam for Text to Speech synthesis. If this voice does not work on your operating system (ie. Windows 2000 or earlier), or if you simply dont like the sound of it, you can download and install third party voices. Below are some free alternative Speech to Text voices available for download. There are also companies that sell these voices and an internet search will show many such companies.
Alternative Text to Speech Voices
About our Software's Speech Voices
Our software supports either SAPI 4 compliant voices for older release of the applications, or for newer we support SAPI 4 and SAPI 5.0 or later. Where possible try to get voices that support both standards. You can check if your application supports SAPI 5 by checking if 'Microsoft Mike' or 'Microsoft Sam' are listed as voices. If they are then your application should support SAPI 5 voices, otherwise only SAPI 4.
Linux speech engines include:
Speech Recognition Engines
Our applications can process a recording and convert it to text or scan the recording for keywords. These application include:
You may install your choice of Speech Recognition Engine (eg. Dragon Naturally Speaking, IBM Via Voice) for use in our applications. In all cases we require a SAPI 4 compliant engine and you can check this from the product manufacturer, but most major applications support SAPI 4.
You should always thoroughly train the engines to ensure it correctly recognises words and phrases.
Keyword Searching
VRS currently supports searching for selected keywords in recordings. We also plan to add this feature into other applications in the near future.
For this search you require a Speech Recognition Engine that supports SAPI 4 and Context Free Grammars. Microsoft provide a free 'Command and Control' engine that is reliable and gives a good recognition rate.
Click here to download "actcnc.exe" now.
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