72 lines
2.6 KiB
HTML
72 lines
2.6 KiB
HTML
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---
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layout: page
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author: De Vita Gianmarco
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title: SAY
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---
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<p>You can convert text into audible speech just by writing the command
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<code>say</code> followed by a string. This is possible thanks to the
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Speech Synthesis manager.</p>
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{% highlight ruby linenos %}
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Device-name:Current-position username$ say string
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{% endhighlight %}
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<p>Naturally, the wide presence of flags for this command allows you to use
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this command for many different tasks. Notice that using more flag
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simultaneously, you will be able to solve more complex operations.</p>
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<h3>Read a particular file</h3>
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<p>By writing the command followed by the flag <code>-f</code> and, instead
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of the string, by the path of a text file, you will get as output a voice
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reading the content of that file.</p>
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{% highlight ruby linenos %}
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Device-name:Current-position username$ say -f path/text.txt
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{% endhighlight %}
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<h3>Specify the reading voice</h3>
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<p>By writing the flag <code>-v</code> followed by a person name and a string, you
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can decide which voice should read the string.</p>
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{% highlight ruby linenos %}
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Current-position username$ say -v name string
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{% endhighlight %}
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<p><b>Notice.</b> Of course, you're not expected to know every possible voice,
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so, by writing "?" as argument of the command (including also the flag -v),
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you will get a list of all the available voices.</p>
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{% highlight ruby linenos %}
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Current-position username$ say -v ?
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{% endhighlight %}
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<h3>Specify the Speech Rate</h3>
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<p>By writing the flag <code>-r</code> followed by a rate and then by a
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string, you can decide the reading speed in words per minute.</p>
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{% highlight ruby linenos %}
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Current-position username$ say -r rate string
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{% endhighlight %}
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<h3>Store the output in an audible file</h3>
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<p>You can save the result of the command in an audible file. To do that,
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you have just to write after the command the flag <code>-o</code> followed
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by the path/name of the output file and then the string that has to be read.</p>
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{% highlight ruby linenos %}
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Current-position username$ say -o path/audiofile.*format string
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{% endhighlight %}
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<h3>Exercise - Flags combinations</h3>
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<p>As said above, you can use more flags in the same command, once you know
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well them. See the examples below and try to guess the output. You can
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copy these commands into your terminal to verify your answers.</p>
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{% highlight ruby linenos %}
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Current-position username$ say -v Alex -f hello_world.txt
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{% endhighlight %}
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{% highlight ruby linenos %}
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Current-position username$ say -o hi.aac -f hello_world.txt
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{% endhighlight %}
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