{"references": ["K. Jelemensk\u00e1, P. Koine, y P. \u010ci\u010d\u00e1k, \u00abEnhanced Classroom Presenter\u00bb, pp. 973-983, ene. 2013.", "B. Bligh y D. Coyle, \u00abRe-Mediating Classroom Activity with a Non-Linear, Multi-Display Presentation Tool\u00bb, Comput. Educ., vol. 63, pp. 337-357, 2013.", "B. Perron y A. Stearns, \u00abA Review of a Presentation Technology: Prezi\u00bb, 2010.", "J. M. Tangen, M. D. Constable, E. Durrant, C. Teeter, B. R. Beston, y J. A. Kim, \u00abThe Role of Interest and Images in Slideware Presentations\u00bb, Comput. Educ., vol. 56, n.o 3, pp. 865-872, 2011.", "R. Anderson, R. Anderson, B. Simon, S. A. Wolfman, T. VanDeGrift, y K. Yasuhara, \u00abExperiences with a tablet PC based lecture presentation system in computer science courses\u00bb, ACM SIGCSE Bull., vol. 36, n.o 1, pp. 56-56-60-60, mar. 2004.", "R. H. Scott, \u00abTableau Economique: Teaching Economics with a Tablet Computer\u00bb, J. Econ. Educ., vol. 42, n.o 2, pp. 175-180, 2011.", "G. Friedland, L. Knipping, J. Schulte, y E. Tapia, \u00abE-Chalk: A Lecture Recording System Using the Chalkboard Metaphor\u00bb, Interact. Technol. Smart Educ., vol. 1, n.o 1, pp. 9-20, 2004.", "R. Berjon, T. Leithead, E. D. Navara, E. O'Connor, y S. Pfeiffer, \u00abHTML5\u2014A Vocabulary and Associated APIs for HTML and XHTML\u00bb, World Wide Web Consort., vol. 11, 2012.", "S. K. A. Soong, L. K. Chan, C. Cheers, y C. Hu, \u00abImpact of Video Recorded Lectures among Students\u00bb, Who's Learn., pp. 789-793, 2006.\n[10]\tP. Gorissen, J. van Bruggen, y W. Jochems, \u00abStudents and Recorded Lectures: Survey on Current Use and Demands for Higher Education\u00bb, Res. Learn. Technol., vol. 20, sep. 2012.\n[11]\tK. Leoni y S. Lichti, \u00abLecture Capture in Higher Education\u00bb, Northwest. Univ. Evanston,, 2009.\n[12]\tEpiphan, \u00abEpiphan Lecture Recorder\u00bb, 2013. [En l\u00ednea]. Available: http://www.epiphan.com/products/recording/lecture-recorder/.\n[13]\tEcho360, \u00abEcho360 Lecture Recording\u00bb, 2013. [En l\u00ednea]. Available: http://echo360.com/.\n[14]\tR. Mertens, M. Ketterl, y O. Vornberger, \u00abThe virtPresenter lecture recording system: Automated production of web lectures with interactive content overviews\u00bb, Interact. Technol. Smart Educ., vol. 4, n.o 1, pp. 55-65, ene. 2007.\n[15]\tS. Venema y J. M. Lodge, \u00abCapturing Dynamic Presentation: Using Technology to Enhance the Chalk and the Talk\u00bb, Australasian Journal of Educational Technology, vol. 29, n.o 1. 28-feb-2013.\n[16]\tHan-Ping Chou, Jung-Ming Wang, Chiou-Shann Fuh, Shih-Chi Lin, y Sei-Wang Chen, \u00abAutomated Lecture Recording System\u00bb, en 2010 International Conference on System Science and Engineering, 2010, pp. 167-172.\n[17]\tF. Lampi, S. Kopf, y W. Effelsberg, \u00abAutomatic Lecture Recording\u00bb, en Proceeding of the 16th ACM international conference on Multimedia - MM '08, 2008, p. 1103.\n[18]\tR. Likert, A Technique for the Measurement of Attitudes, n.o nos. 136-165. 1932."]}

Computers and multimedia equipment have improved a lot in the last years. They have reduced their cost and size while at the same time increased their capabilities. These improvements allowed us to design and implement a portable recording system that also integrates the teacher´s tablet PC to capture what he/she writes on the slides and all that happens in it. This paper explains this system in detail and the validation of the recordings that we did after using it to record all the lectures the “Communications Software” course in our university. The results show that pupils used the recordings for different purposes and consider them useful for a variety of things, especially after missing a lecture.