STIPA Method in Public Adress Sound Systems and Voice Alarm Systems Part 2: Conversion Curves and Bandwidth Effect

Drtina, René; Lokvenc, Jaroslav; Šedivý, Josef; Čákora, Lukáš; Konvalina, Jan; Vrba, Lukáš

doi:10.4028/www.scientific.net/amr.1082.574

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Given the relatively large restriction standard methods pinched and its insensitivity to reduce the frequency characteristics of [11][12][13][14][15][16] cannot be directly compared measurement results with real clarity which would be determined using logatomických tests.…”

Section: Measurement Methodsmentioning

confidence: 99%

Limiting Acoustic Conditions the Transfer of Information in the Digitalized Classrooms

Drahorád¹,

Saučuková²,

Drtina³

et al. 2017

dtetr

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Abstract. The acoustic transmission channel has an irreplaceable role in the transfer of information in all spheres of human life. Since normal interpersonal communication, via advertisements to cultural events such as theater performances, film screenings and concerts. The dominant position of the acoustic communication still keeps in the teaching process. For undisturbed transmission of acoustic information it is necessary to create appropriate acoustic conditions. Yet achievable intelligibility in classrooms, lecture halls and a congress devoted little attention. The article brings partial results of extensive research, the quality of information transmission acoustic transmission channel in the classrooms of elementary and secondary schools.

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Section: Measurement Methodsmentioning

confidence: 99%

Limiting Acoustic Conditions the Transfer of Information in the Digitalized Classrooms

Drahorád¹,

Saučuková²,

Drtina³

et al. 2017

dtetr

Self Cite

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“…However, clarity of speech output drops when SPL in the room goes above 85 dB. With such high SPL, clarity of speech drops due to reduced sensitivity of the ears [4].…”

Section: Introductionmentioning

confidence: 99%

Significance of Speech Intelligibility Assessors in Medium Classroom Using Analytical Hierarchy Process

et al. 2018

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When there are constraints on the resources-equipment, manpower and time-to conduct speech intelligibility tests, the most reliable or significant SI assessor for many different types of rooms is always sought for. The purpose of this study was to determine the most significant speech intelligibility assessor in four medium classrooms. The speech intelligibility assessors tested were RT60, C50, D50, and STIPA. The data were acquired by means of sound recorder that recorded six Malay words spoken by a trained male speaker, in four medium classrooms.The recorded speech signals were analyzed by DIRAC software. The data of four speech intelligibility assessors have to be normalized before it can be analyzed by AHP. In conclusion, C50 has shown the most consistent prediction of speech intelligibility in all sampled classrooms. On the other hand, as the room gets larger, RT60 becomes significant for determining speech intelligibility in these sampled classrooms.

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“…Article takes a look at single-digit measurement methods of speech intelligibility as objectification promote educational research that is concerned with the quality and effectiveness of the process of perception. The results to be as objective as possible, it is necessary to determine the initial terms of quality of information transfer [1]. For evaluating the quality of speech transmission there is a one-digit number of measurement methods.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of the Frequency Spectrum of Speech in Logatomic Tests and Measurement Signals

Drtina

Šedivý

2016

AMM

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Collaboration with professionals, particularly in the production of a key test of audio material, consider not only commonplace, but a necessary condition for objectification of input values of research whose content is aural component of the learning material. To get near the practice tests were filmed in three versions for voice, lower male voice, higher male voice and a female voice. Professional presenters under the leadership of literary director for us were the guarantee of a precise pronunciation of speech therapy without defects.

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STIPA Method in Public Adress Sound Systems and Voice Alarm Systems Part 2: Conversion Curves and Bandwidth Effect

Abstract: Classrooms, lecture, lecture, conference and convention halls can be considered as spaces in which there is sometimes one way, but more often two-way communication through the transmission channel. Equally important is the transfer of key information in voice alarm system.

Cited by 3 publications

References 2 publications

Limiting Acoustic Conditions the Transfer of Information in the Digitalized Classrooms

Limiting Acoustic Conditions the Transfer of Information in the Digitalized Classrooms

Significance of Speech Intelligibility Assessors in Medium Classroom Using Analytical Hierarchy Process

A Comparative Analysis of the Frequency Spectrum of Speech in Logatomic Tests and Measurement Signals

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