Saturday, May 20, 15:00 — 18:00 (Gallery Window)
P06-01 Determining Pronunciation Differences in English Allophones Utilizing Audio Signal Parameterization
Bozena Kostek (Presenting Author), T. Ciszewski (Author), Andrzej Czyzewski (Author), Magdalena Piotrowska (Author)
An allophonic description of English plosive consonants, based on audio-visual recordings of 600 specially selected words, was developed. First, several speakers were recorded while reading words from a teleprompter. Then, every word was played back from the previously recorded sample read by a phonology expert and each examined speaker repeated a particular word trying to imitate correct pronunciation. The next step consisted in partitioning by editing two recorded sets of words into allophones, then signals were analyzed and subsequently audio excerpts were parametrized. The comparison of two sets of allophones was reinforced by the phonology expert’s assessment of produced speech sounds. Analyses presented in this paper allowed for determining a set of parameters describing an allophone pronunciation.
Convention Paper 9716
P06-02 Mathematical Model of the Acoustic Signal Generated by the Combustion Engine
Michal Luczynski (Presenting Author), Stefan Brachmanski (Author)
Development of the technology of electric vehicles is progressing. The acoustic problem of no audible sensation like combustion engine is a significant problem. It is a desirable feature and safety problem as well. More and more automotive companies are working on engine sound synthesis systems. However there is no universal standard helping solve this problem. The aim of this paper is to define a universal form of mathematical model and general assumption to design engine sound synthesis systems for electric motorbikes.
Convention Paper 9717
P06-03 Whispered Speech Speaker Recognition. Listening Tests versus Speaker Recognition System
Krzysztof Goliasz (Presenting Author), Michal Luczynski (Author)
In this study, efficiency of different methods of whispered speech speaker recognition have been compared. Whispered speech as one of the voice disguises is causing a lot of difficulties in speaker identification. During examination of both methods authors were looking for key factors of speaker recognition in both methods. Both methods were tested with and without normal voice as a reference sample. Non-acoustic circumstances as time and costs were considered during comparison as well.
Convention Paper 9718
P06-04 A Study on Audio Signal Processed by "Instant Mastering" Services
Magdalena Piotrowska (Presenting Author), Bozena Kostek (Author), Szymon Piotrowski (Author)
An increasing amount of music produced in home- and project-studios results in development and growth of "automatic mastering services." The presented investigation explores changes introduced to audio signal by various online mastering platforms. A music set consisting of 10 songs produced in small facilities was processed by eight on-line automatic mastering services. Additionally, some laboratory-constructed signals were tested. To determine, whether changes introduced to audio are invariable between trials, every music excerpt was submitted several times. For each sample, parameters related to music characteristics such as timbre, dynamics, and loudness were calculated before and after processing. Results obtained enable to discover some of the mechanisms underlying tested automatic mastering services as well as discern similarities and differences between various platforms.
Convention Paper 9719
P06-06 Car Infotainment Systems Capabilities vs. Customers’ Needs and Expectations
Bartlomiej Kukulski (Presenting Author)
To make the trip more enjoyable, decades ago vehicles gained radio systems, which evolved further into multimedia systems, and today into infotainment systems, which provide entertainment facilities, access to information (e.g., route guidance), and increasingly, network connectivity, which leads to the perception of those systems as smart devices. The paper presents an overview of modern car infotainment systems possibilities compiled with the results of survey conducted on representative group of car users, mainly drivers. The purpose of the survey was to obtain information about possessed car audio systems (loudspeakers, amplifiers), hardware and software capabilities of possessed infotainment systems, and to learn about user experience followed by satisfaction evaluation of quality of audio provided by systems installed in their cars.
Convention Paper 9804