AES Budapest 2012
Paper Session P6
P6 - Multimodal Apps and Broadcast
Thursday, April 26, 14:30 — 17:00 (Room: Liszt)
Chair:
Bozena Kostek
P6-1 Immersive Audiovisual Environment with 3-D Audio Playback—Javier Gómez Bolaños, Ville Pulkki, Aalto University - Espoo, Finland
The design of an immersive audiovisual environment for researching the aspects of the perception of spatial sound in the presence of a surrounding moving visual image is presented. The system consists in a visual screen with wide field-of-view based in acoustically transparent screens that span 226° in the horizontal plane and 57° in the vertical plane. In addition, a 3-D multichannel sound reproduction system with 29 active loudspeakers is installed. The total system is optimized for audio playback, and measured acoustical system responses are presented. The system is equipped with a tracking system based on infrared cameras, which enable head-tracking for head phone listening and also interaction based on gestures. This audiovisual system aims to be a tool for researching spatial audio, crossmodal interaction and psychoacoustics, auralization, and gaming.
Convention Paper 8604 (Purchase now)
P6-2 Sensitive Audio Data Encryption for Multimodal Surveillance Systems—Janusz Cichowsk, Andrzej Czyzewski, Gdansk University of Technology - Gdansk, Poland
Novel algorithms for data processing in audiovisual surveillance systems were developed allowing for a better personal data protection. The solution merging the image and audio encryption for privacy-sensitive data protection employing audio stream is described. The main objectives of this research study including motivation and the state of the art are presented with a comprehensive explanation of audio stream relation to the surveillance. The invertible encryption methodology for privacy preserving using audio container is applied. The experiments are described and obtained results are reported including prospects for future improvements.
Convention Paper 8605 (Purchase now)
P6-3 Loudness Normalization of Wide-Dynamic Range Broadcast Material—Scott Norcross, Michel Lavoie, Communications Research Center - Ottawa, Ontario, Canada
Various techniques are being used by broadcasters to normalize the loudness levels of their programs. For long-form content, EBU R128 recommends that the full program be measured using the algorithm described in ITU-R BS.1770-2. ATSC A/85 recommends instead that only the “Anchor Element” of long-form content need be measured. For narrow dynamic range material, the differences between the two measures are not large, but there can be large differences between the two approaches when the material has a wide dynamic range. This paper compares these two measurement approaches and explores their subjective consequences.
Convention Paper 8606 (Purchase now)
P6-4 Creating Mood Dictionary Associated with Music—Magdalena Plewa, Bozena Kostek, Gdansk University of Technology - Gdansk, Poland
The paper presents an attempt to create a dictionary of words related to mood associated with music. Two parts of a listening test were designed and carried out with a group of students, most of them users of social music online services. The audience task was to propose adjectives well-describing music tracks. These words were given in Polish and then compared to their English equivalents. The obtained results show that terms associated with music are language-specific and in addition there is a need to use multi-label mood description.
Convention Paper 8607 (Purchase now)
P6-5 Redundancy Optimization for Networked Audio Systems—Damian Kowalski, Piotr Z. Kozlowski, Wroclaw University of Technology - Wroclaw, Lower Silesia, Poland
Networked audio systems can be simply defined as a connection of IT and professional audio. Nowadays, we can use protocols developed by IT specialists to ensure system recovery without human intervention. There is a possibility to improve the recovery time of the system after failure by optimizing the protocols responsible for network redundancy. The paper is a summary of research completed at Wroclaw University of Technology on May 2011. It contains guidelines on how to optimize the network redundancy in order to achieve the best results.
Convention Paper 8608 (Purchase now)
