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Papers by Richard Peppin

Research paper thumbnail of Railroad track working equipment

Research paper thumbnail of Ballast distribution, regulation and reclaiming railroad maintenance device

Research paper thumbnail of Apparatus for Removing Ballast from Beneath a Railroad Track

Research paper thumbnail of Machine for Inserting Ties Beneath a Railroad Track

Research paper thumbnail of Self-clearing discharge door assembly for railroad ballast hopper car

Research paper thumbnail of APS Council resolution on nuclear war

Research paper thumbnail of Evaluation of some temporal sampling strategies in community noise measurement

Canadian Acoustics, Sep 1, 1998

Research paper thumbnail of Controlling the shape of an acoustic spectrum automatically by the use of a bus-controlled spectrum shaper and a real-time analyzer

In Institute of Environmental Sciences Annual Technical Meeting 34th King of Prussia Pa May 3 5 1988 Proceedings Mount Prospect Il Institute of Environmental Sciences 1988 P 295 298, 1988

A system using an analyzer with a bus-controlled spectrum shaper for fast and accurate 1/3 octave... more A system using an analyzer with a bus-controlled spectrum shaper for fast and accurate 1/3 octave-band spectrum shaping is discussed. The system's instrumentation is described, including the dual-channel real time analyzers, the spectrum shaper, loudspeaker, power amplifier, and microphones. The detection and analysis of the signal, the measurement and regulation procedures, and the algorithm for spectrum control are examined. The reverberation times are presented as a function of frequency between 100 Hz and 5 kHz. The results show that the control parameters depend on the system's linearity, the system response to the room and its contents, and on the instrumentation and control algorithm.

Research paper thumbnail of Evaluating Sound Absorption in Situ using "ADRIENNE

Research paper thumbnail of Speech Transmission Index- Public Address (STIPA): Objective Assessment of Intelligibility

Research paper thumbnail of Understanding instrument calibration

Canadian Acoustics, Mar 1, 2006

U n d e r s t a n d i n g I n s t r u m e n t C a l i b r a t i o n a b s t r a c t Calibration i... more U n d e r s t a n d i n g I n s t r u m e n t C a l i b r a t i o n a b s t r a c t Calibration is often misunderstood and is filled with many misconceptions. Neither the users of instruments nor the simple laboratories that perform the calibration assessmnets have a clear understanding of their roles in the complex field o f calibration. This article provides the necesary processes involved in calibrating an instrument, simple or complex, and a brief description that wil clarify the myriad misconceptions.

Research paper thumbnail of A comparison of ISO 9613-2 and advanced calculation methods: Predictions versus experimental results

2Richard J. Peppin, Scantek, Inc., u Sa , PeppinR@ASME. org

Research paper thumbnail of The Acoustical Testing of Thermally Insulated Exterior Building Elements

Insulation Materials: Testing and Applications, 3rd Volume, 1997

Research paper thumbnail of Fast Determination of Vehicle Sound Level per ISO 5130

SAE Technical Paper Series, 1999

Research paper thumbnail of Measuring the Displacement of Engines Using Acoustics

SAE Technical Paper Series, 2008

Research paper thumbnail of The measurement of sound by the simultaneous use of several time constants

The Journal of the Acoustical Society of America, 1988

Research paper thumbnail of Ethical treatment of animals in research

The Journal of the Acoustical Society of America, 2003

Research paper thumbnail of On HVAC duct acoustical end reflection

The Journal of the Acoustical Society of America, 2000

Research paper thumbnail of Measuring acoustic impedance: The results of a worldwide round robin

The Journal of the Acoustical Society of America, 1988

Research paper thumbnail of Noise from Small Fans: The INCE Plastic Plenum Measurement Method

The Journal of the Acoustical Society of America, 1989

Research paper thumbnail of Railroad track working equipment

Research paper thumbnail of Ballast distribution, regulation and reclaiming railroad maintenance device

Research paper thumbnail of Apparatus for Removing Ballast from Beneath a Railroad Track

Research paper thumbnail of Machine for Inserting Ties Beneath a Railroad Track

Research paper thumbnail of Self-clearing discharge door assembly for railroad ballast hopper car

Research paper thumbnail of APS Council resolution on nuclear war

Research paper thumbnail of Evaluation of some temporal sampling strategies in community noise measurement

Canadian Acoustics, Sep 1, 1998

Research paper thumbnail of Controlling the shape of an acoustic spectrum automatically by the use of a bus-controlled spectrum shaper and a real-time analyzer

In Institute of Environmental Sciences Annual Technical Meeting 34th King of Prussia Pa May 3 5 1988 Proceedings Mount Prospect Il Institute of Environmental Sciences 1988 P 295 298, 1988

A system using an analyzer with a bus-controlled spectrum shaper for fast and accurate 1/3 octave... more A system using an analyzer with a bus-controlled spectrum shaper for fast and accurate 1/3 octave-band spectrum shaping is discussed. The system's instrumentation is described, including the dual-channel real time analyzers, the spectrum shaper, loudspeaker, power amplifier, and microphones. The detection and analysis of the signal, the measurement and regulation procedures, and the algorithm for spectrum control are examined. The reverberation times are presented as a function of frequency between 100 Hz and 5 kHz. The results show that the control parameters depend on the system's linearity, the system response to the room and its contents, and on the instrumentation and control algorithm.

Research paper thumbnail of Evaluating Sound Absorption in Situ using "ADRIENNE

Research paper thumbnail of Speech Transmission Index- Public Address (STIPA): Objective Assessment of Intelligibility

Research paper thumbnail of Understanding instrument calibration

Canadian Acoustics, Mar 1, 2006

U n d e r s t a n d i n g I n s t r u m e n t C a l i b r a t i o n a b s t r a c t Calibration i... more U n d e r s t a n d i n g I n s t r u m e n t C a l i b r a t i o n a b s t r a c t Calibration is often misunderstood and is filled with many misconceptions. Neither the users of instruments nor the simple laboratories that perform the calibration assessmnets have a clear understanding of their roles in the complex field o f calibration. This article provides the necesary processes involved in calibrating an instrument, simple or complex, and a brief description that wil clarify the myriad misconceptions.

Research paper thumbnail of A comparison of ISO 9613-2 and advanced calculation methods: Predictions versus experimental results

2Richard J. Peppin, Scantek, Inc., u Sa , PeppinR@ASME. org

Research paper thumbnail of The Acoustical Testing of Thermally Insulated Exterior Building Elements

Insulation Materials: Testing and Applications, 3rd Volume, 1997

Research paper thumbnail of Fast Determination of Vehicle Sound Level per ISO 5130

SAE Technical Paper Series, 1999

Research paper thumbnail of Measuring the Displacement of Engines Using Acoustics

SAE Technical Paper Series, 2008

Research paper thumbnail of The measurement of sound by the simultaneous use of several time constants

The Journal of the Acoustical Society of America, 1988

Research paper thumbnail of Ethical treatment of animals in research

The Journal of the Acoustical Society of America, 2003

Research paper thumbnail of On HVAC duct acoustical end reflection

The Journal of the Acoustical Society of America, 2000

Research paper thumbnail of Measuring acoustic impedance: The results of a worldwide round robin

The Journal of the Acoustical Society of America, 1988

Research paper thumbnail of Noise from Small Fans: The INCE Plastic Plenum Measurement Method

The Journal of the Acoustical Society of America, 1989

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