Information Technology Reference
In-Depth Information
To verify above mentioned fact, we conducted experiments with human subject.
3.1 Settings
We utilized the speech synthesizer “Polluxstar“ by Oki Electric Co. Ltd., which enables
speech synthesis with one's own voice. We input information of voice of authors of this
paper (one male and one female).
We prepared three materials to be synthesized for the experiments. Two are about recipes and
another is about sports news. For recipes, we chose them from one of recipes sites with movies
in Japan (http://recipe.gnavi.co.jp/movie/sweetkitchen/). One is about cooking rice bowl
with chicken and eggs, and the other is about cooking gratin. This site contains a short movie
with chef and assistant, and contains written recipes for each dish. For dialogue example, we
transcribed all conversation between chef and assistant and made speech synthesizer read it
aloud. For monologue example, we simply made speech synthesizer read it aloud with one of
two voices in the system. As for news article, we chose a news article about women's soccer
games in the newspaper in Japan. For its monologue, we made speech synthesizer read it
aloud with one of two voices in the system. For its dialogue, we added inquiries manually
about some of the point of the news, and made speech synthesizer read it aloud.
We gathered participants of our experience among students of Toyohashi University of
Technology, Japan. We had 33 participants and additional 4 male student participants.
Because the main topic of the experience is recipe, we gathered mainly woman students. The
participants were requested to listen to all six synthesized speeches, i.e. two dialogues for
cooking, two monologues for cooking, one dialogue of news, and one monologue of news,
and fill questionnaire when one finished each speech.
The items which are asked in the questionnaire are as follows;
1.
Recipe
1a: whether you can make the dish or not
1b: ingredients
1c: cooking procedure
1d: important points for the procedure
1e: comparison between monologue and dialogue
2.
News
2a: impression of monologue
2b: impression of dialogue
2c: comparison between monologue and dialogue
3.
Over all comparison
3.2 Results
3.2.1 Recipe
The objective features extracted from the questionnaire are as follows;
For rice ball recipe;
Number of ingredients
