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Since the latest update of acapela-box we have added the possibility to ask to the text-to-speech to provide us an alternative rendering of a word. This can be used when we want to get a different nuance on the way to pronounce a word or get rid of some acoustic problem in a word.
To ask about a different acoustic rendering of a word you need to type \sel=alt1\ in front of that word. You can also ask for \sel=alt2\ (and so on, up to “alt9”) to get more variations.
Note that the difference may be quite subtle and in some case barely hearable. Asking a different rendering of a word will also affect the words near by and more generally give a different nuance to the whole sentence.
As an example, Select the voice Rod and type the following text:
Let’s convert text into speech.
Let’s convert \sel=alt1\ text into speech.
Let’s convert \sel=alt2\ text into speech.
Now click on LISTEN to hear the result, you will notice a subtle nuance in the way the word text (and nearby words) are rendered.
You can also tag several words in one sentence, for instance if you type the following sentences with the voice Rod:
Let’s convert text into speech.
Let’s convert \sel=alt1\ text into speech.
Let’s \sel=alt1\ convert \sel=alt1\ text into speech.
You will hear one more variation in the acoustic rendering of the sentence.
The effect of the \sel=alt1\ tag is difficult to predict, so you need to work empirically using a trial-and-error method. It is also voice specific, so it cannot be copied from one voice to the other, even if in the same language.
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