Text to Speech Movies for EFL ESL

Yesterday on my Quick Shout blog, I wrote about a new tool called Xtranormal for creating text to speech animated movies. Since then I've had a little time to put together a tutorial video and think about how to use it in the classroom. First I thought I'd show you what extra normal produces.

There is quite a range of characters and backgrounds so the possibilities for creating situational dialogues is terrific and you can also build these scenes into a series, so this would be great for longer projects too. Here's a quick look at how a movie is created.

• You can watch or download a higher quality version .mov here: Xtranormal tutorial
• Or download to i-tune / iPod: Xtranormal tutorial

So how can we use this with our students?

• We can use it as a novel way to present language in context by creating small scenes for our students to watch.
• We can get our students to create dialogues for specific contexts. You could even give students specific tasks (Convince your partner that taxis are better than buses - Try to convince your partner to buy shares in Mircosoft and not Apple) get the students to work in pairs, taking it in turns to create each side of the dialogue, then they can show the class their work.
• You can get students to create news reports and then create a movie of their own news bulletin.
• You or your students could create monologues of characters telling jokes or stories or reading poems and develop this into an animated talent show.
• Their is both a rating feature and a comments feature, so once students have finished their work they can look at and rate each others' videos
• There is also a 'Remix' button on each movie which enables you to grab a copy of someone else movie and make it your own and remix / change it. You could create movies with errors in the script and ask the students to remix the movie and take out the errors.
• You could create a movie with only one half of the dialogue. Your students would then have to remix it and add the script for the missing person
• You could create the first scene from a story and get your students to create the next scene.
• You could show your students scenes from real films or a TV series and then see how much of the scene they can recreate.
• You could get students to create their own soap opera, adding a new scene each week.

What I like about it

• Well it's free (at the moment) and it's quick and easy to use?
• It's a way of giving students a 'finished product' to showcase the language they are learning.
• It's entertaining and creative.
• It's a very flexible and adaptable tool and could be used by students (over 13 years old) or by you to create materials for your students. You could use it to create materials for young learners through to business courses.
  
• It's a way of getting students to listen and to write.

What I'm not so sure about

• Well I'm not sure how long it will be free. There are signs that the owners intend to start charging, though no signs of how much or whether there would still b a free option.
• Some of the voices that create the speech from the text don't always sound 100% real, though in cartoon type animation I think this is reasonably acceptable.
• Not everyone using the site is doing so for educational purposes, s some of the animations that are already there could be inappropriate for younger learners or offensive to older ones.

Well I hope you find the time to try Xtranormal with your students and by all means share any ideas, tips or materials you create (just add a link in the comments).

Related links:

• Text to Speech for EFL ESL Materials
• Creating audio-visual monologues
• Drama project tools
• Make you own animated movies
• Developing screencast tutorials
• Extending a Sentence
• 60 Second Writing Activity
• Create an English Cartoon

Best
Nik Peachey

Text to Speech for EFL ESL Materials

Text to Speech (TTS) technology has come a long way in recent years and this is nowhere more evident than on the Read The Words website.

I've just been having a look at the site and trying to decide whether it has real potential for helping EFL ESL students with their listening, reading and pronunciation.


As an experiment I decided to select quite a challenging text and see what the site could do. I also decide to select a British English accent, as in the past I know that TTS systems had struggled more with UK accents than US ones, due to the wider range of sounds in UK English.

Anyway, here are the results. The text is from Wikipedia.org at: http://en.wikipedia.org/wiki/Text_to_speech and is about the challenges of text normalisation in TTS.

• Click here to watch Elizabeth read the text to you.
  Or
  

• Listen using this media player

This is the actual text you should be hearing:

"Text normalization challenges

The process of normalizing text is rarely straightforward. Texts are full of heteronyms, numbers, and abbreviations that all require expansion into a phonetic representation. There are many spellings in English which are pronounced differently based on context. For example, "My latest project is to learn how to better project my voice" contains two pronunciations of "project".

Most text-to-speech (TTS) systems do not generate semantic representations of their input texts, as processes for doing so are not reliable, well understood, or computationally effective. As a result, various heuristic techniques are used to guess the proper way to disambiguate homographs, like examining neighboring words and using statistics about frequency of occurrence.

Deciding how to convert numbers is another problem that TTS systems have to address. It is a simple programming challenge to convert a number into words, like "1325" becoming "one thousand three hundred twenty-five." However, numbers occur in many different contexts; when a year or perhaps a part of an address, "1325" should likely be read as "thirteen twenty-five", or, when part of a social security number, as "one three two five". A TTS system can often infer how to expand a number based on surrounding words, numbers, and punctuation, and sometimes the system provides a way to specify the context if it is ambiguous.

Similarly, abbreviations can be ambiguous. For example, the abbreviation "in" for "inches" must be differentiated from the word "in", and the address "12 St John St." uses the same abbreviation for both "Saint" and "Street". TTS systems with intelligent front ends can make educated guesses about ambiguous abbreviations, while others provide the same result in all cases, resulting in nonsensical (and sometimes comical) outputs. "

What I like about the site

• The site is free though you do have to register.
• The site creates a number of options once it has converted the text to speech. This includes creating an Mp3 file to download, creating an embed code to embed the audio into a blog or website, or download to i-pod.
• They have quite a selection of avatars and voices
• The site can convert text from a number of sources including Word, PDF, a website (just type in the URL) or even an RSS feed!
• You can make the texts private or public
• There doesn't seem to be a limit on many you can create
  

What I wasn't so sure about

• I found it hard to get a link to the avatar reading the text. It would have been nice to be able to embed her into my blog, but I just couldn't get that to work.
• Processing the text can take a while.
  

I haven't added any teaching suggestions yet for this posting, as I'm interested to see what other teachers think about this before I do that.

So, if you've listened to the text, please do send in a comment and let me know what you think about the useability of a tool like this with EFL ESL students.

Related lnks:

• Dictation goes Web 2.0
• Artificial Intelligence Chat bots and EFL ESL

Activities for students:

• Listen and Write the News
• Listen to and Download Texts

Best

Nik Peachey