CHoral - access to oral history


The diary of Anne Frank

CHoral has disclosed the audio version of the diary of Anne Frank, read out by dutch actrice Carice van Houten. By entering search terms specific parts of the diary can be found. These parts can then be auditioned. Automatic speech recognition has been used to align audio and text. Note that this demo is in dutch.

Unfortunately, we cannot make the demo publicly available because of copyright restrictions. Interested parties are welcome to contact .


The 'Brandgrens Ooggetuigen' search functionality of the Brandgrens website is a joint effort of the Rotterdam Municipal Archives, and CHoral researchers. The disclosure of the interviews was realised through CHoral's speech technology.


CHoral has created a demonstrator for the International Information Centre and Archives for the Women's Movement (IIAV). A collection of interviews with several women that play an important role in the women's movement have been disclosed. The result (in Dutch) can be accessed here.


The Buchenwald demonstrator supports access to and search in interviews with survivors of camp Buchenwald. 38 such interviews have been recorded under the auspices of the "Association of ex-Buchenwalders". To preserve these interviews they were handed over to the Netherlands Institute for War Documentation (NIOD).

In this portal the interviews have been disclosed by using ASR, together with related textual data (personal profiles and summaries). The demonstrator, in Dutch, can be found here.

Radio Oranje

During World War II Queen Wilhelmina read speeches addressed to the Dutch nation via Radio Oranje. These speeches were fully transcribed, and both the recordings and the transcripts have been preserved.

In the Radio Oranje project an interface was developed that allows a user to search the transcripts online and also to directly listen to the corresponding audio fragments. This was made possible by using automatic speech recognition technology. Furthermore, subtitling is shown together with the audio, which makes it easier to understand the historical speeches.

The Radio Oranje project is a collaboration between the Netherlands Institute for War Documentation (NIOD), the Netherlands Institute for Sound and Vision (NIBG), and the CHoral and MultimediaN projects from the University of Twente.

The demo, which is in Dutch, can be found here.