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UbuntuHelp:TextToSpeech
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{{From|https://help.ubuntu.com/community/TextToSpeech}} {{Languages|UbuntuHelp:TextToSpeech}} #title Festival - Text-to-Speech You can take advantage of Text-To-Speech in Ubuntu by using a program called ''Festival''. Out of the box, Festival doesn't work with ESD (the default sound server up to Gutsy), Pulse``Audio (the default sound server since Hardy) or ALSA, so some changes are required to get it up and running. This guide provides instructions on how to get Festival working on Ubuntu with ESD, Pulse``Audio and ALSA. If you are using a version of Ubuntu prior to Hardy, and you don't want to use Festival with ESD, you will have to disable ESD in the ''Sounds'' preferences dialog. In that case, other multimedia applications won't be able to play audio at the same time. == Installation == Install Festival by typing the following command in a Terminal: <code><nowiki>sudo apt-get install festival</nowiki></code> '''Note:''' Additional voices are available in the Ubuntu respositories. Type "festvox" in ''Synaptic Package Manager'' for a list of language packages. == Configuration for ESD == Install ''esdplay'' and ''esddsp'', which are part of the ''esound-clients'' package: <code><nowiki>sudo apt-get install esound-clients</nowiki></code> If you'd like to use ESD for output on a per-run basis, you can run festival through the esddsp wrapper script. Using this approach, the wrapper must be called every time you run festival, or else you will get an error message saying ''can't open /dev/dsp''. <code><nowiki>esddsp festival</nowiki></code> If you want festival to always use ESD for output, you can configure this globally, for all users, or on a per-user basis. To configure globally use the configuration file ''/etc/festival.scm''. To configure locally use the configuration file ''~/festival.scm''. <ol><li>Open the configuration file by typing <code><nowiki>gksudo gedit /etc/festival.scm</nowiki></code> or <code><nowiki>gksudo gedit ~/festival.scm</nowiki></code> in a terminal. </li><li>Add the following lines at the end of the file:</li></ol> <pre><nowiki> (Parameter.set 'Audio_Command "esdplay $FILE") (Parameter.set 'Audio_Method 'Audio_Command) (Parameter.set 'Audio_Required_Format 'snd)</nowiki></pre> 1.#3 Save the file. == Configuration for PulseAudio == '''Note:''' Festival may work with Pulse``Audio out of the box. If so, nothing further needs to be done and this section can be skipped. Install ''paplay'' and ''padsp'', which are part of the ''pulseaudio-utils'' package: <code><nowiki>sudo apt-get install pulseaudio-utils</nowiki></code> If you'd like to use Pulse``Audio for output on a per-run basis, you can run festival through the padsp wrapper script. Using this approach, the wrapper must be called every time you run festival, or else you will get an error message saying ''can't open /dev/dsp''. <code><nowiki>padsp festival</nowiki></code> If you want festival to always use Pulse``Audio for output, you can configure this globally, for all users, or on a per-user basis. To configure globally use the configuration file ''/etc/festival.scm''. To configure locally use the configuration file ''~/festival.scm''. <ol><li>Open the configuration file by typing <code><nowiki>gksudo gedit /etc/festival.scm</nowiki></code> or <code><nowiki>gksudo gedit ~/festival.scm</nowiki></code> in a terminal. </li><li>Add the following lines at the end of the file:</li></ol> <pre><nowiki> (Parameter.set 'Audio_Command "paplay $FILE") (Parameter.set 'Audio_Method 'Audio_Command) (Parameter.set 'Audio_Required_Format 'snd)</nowiki></pre> 1.#3 Save the file. == Configuration for ALSA == '''Note:''' It is hard to use ALSA and ESD on the same system, if it is possible at all. Here it is assumed that you are using ALSA ''instead of'' ESD. Insert of the end of the file <code><nowiki>/etc/festival.scm</nowiki></code> the lines <pre><nowiki> (Parameter.set 'Audio_Command "aplay -D plug:dmix -q -c 1 -t raw -f s16 -r $SR $FILE") (Parameter.set 'Audio_Method 'Audio_Command) (Parameter.set 'Audio_Required_Format 'snd)</nowiki></pre> On some configurations it may be necessary to remove the "-D plug:dmix" part of the aplay command above. == Testing == Test your setup by typing in a Terminal <code><nowiki>festival</nowiki></code> You will be presented with a ''>'' prompt. Type <code><nowiki>(SayText "Hello")</nowiki></code> The computer should say "hello". To listen to a text file named ''FILENAME'', type <code><nowiki>(tts "FILENAME" nil)</nowiki></code> Note ''FILENAME'' must be in quote marks. [[category:UbuntuHelp]]
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