Secondary Analysis of Audio Data. Technical Procedures for Virtual Anonymization and Pseudonymization


  • Henning Pätzold Freie Hochschule Mannheim



secondary analysis, audio data, verbal data, anonymization, pseudonymization


Qualitative material presented as audio data requires a greater degree of protecting of anonymity than for example textual data. Apart from the verbal content, it carries paraverbal aspects including voice characteristics, thus making it easier to identify the speaker. This complicates secondary analysis or reanalysis conducted by researchers who were not involved in the data collection. Difficulties increase if the chances are high that the researcher and the interviewee come in contact for example through a meeting. This paper describes the technical procedures that are used to modify the sound of the audio source in a way that it reduces the possibility of recognition (i.e. similar to that of a carefully written transcript). A discussion of the technical possibilities of this procedure along with an exploration of the boundaries of anonymization is presented. URN: urn:nbn:de:0114-fqs0501249


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Author Biography

Henning Pätzold, Freie Hochschule Mannheim

Dr. Henning PÄTZOLD, Jun.-Professor for adult education. Areas of interest: Teaching and learning in adult education, counselling, pedagogy of media, teacher education.



How to Cite

Pätzold, H. (2005). Secondary Analysis of Audio Data. Technical Procedures for Virtual Anonymization and Pseudonymization. Forum Qualitative Sozialforschung Forum: Qualitative Social Research, 6(1).



Procedures for Archiving Qualitative Data: Confidentiality and Technical Issues