Welcome to the TISEYRE ET ASSOCIES

TISSEYRE & Associés puts its acoustic phenomena (Internal acoustics, insulation, noise ambiance control) simulation tools at your disposal.

These programs are available : see description of Hall Acoustics, Intelligibility, Noisemap, Sound reduction index

These simulation tools make it possible to optimize the required acoustic treatments while guaranteeing the results. They are developed by our engineers and are the result of over 20 years' experience. We also garantee the confidentiality of the operations.

The present Calculation Centre offers quickness of execution of the calculations as well as expertise on the tools by our engineers, this garanteeing the results.

INSTRUCTIONS FOR YOUR CHOICES

Hall Acoustics input form : Listenning room

Intelligibility input form :  Activity room

Noisemap input form

Sound reduction index input form


   For further information, mode down this page !

HALL ACOUSTICS :  LISTENNING ROOM

Creation of the computer model of a hall.

Acoustic simulation
Music hall
Concert hall
Theatre
Auditorium
Conference hall and the like

Calculation of the space response, the time response and the reception directivity.
(Description)

Required technical data
Frequency calculation, octave.
Plan and cross-section. (Instructions for sending drawing)
Source and receiver to use in the calculation
For each specific zone (zone with similar acoustic treatment or of the same acoustic behaviour) - Name of the zone - Nature of the surface ( or possibly type of occupancy furniture, or absorption coefficient )
Results
Presentation of the volume,
The echogram and the RT60 value, the hall's acoustic indices: Definition, Clarity, Lateral Fraction,
The graph of the attenuation of sound with distance, slope calculated from 3 to 24 m, as well as the Gmid index and the front/back energy ratio,
The relative acoustic illumination on the model, with the scale in decibels, for a constant sound source,
The static directivity, i.e. the directions from which, at a given receiver, the acoustic power originates, for a constant sound source,
The dynamic directivity over the first 200 ms,
The speech intelligibility map.


All the results come as displayable and printable images from your browser.

INTELLIGIBILITY : ACTIVITY ROOM
Creation of the computer model of the hall :

Acoustic simulation
Restaurant room
Airport hall
Station
Swimming pool
Shopping mall and the like

Calculation of the space response, the time response and the reception directivity.
(Description)

Required technical data
Plan and cross-section.
(Instructions for sending drawing)
Source and receiver to use in the calculation
For each specific zone (zone with similar acoustic treatment or of the same acoustic behaviour) - Name of the zone - Nature of the surface ( or possibly type of occupancy furniture, or absorption coefficient )
Results
Presentation of the volume and the acoustic treatments
The echogram and RT60 value
The graph of the attenuation of sound with distance
The predictive ambiant noise level of the hall under activity.


All the results come as displayable and printable images from your browser.

NOISEMAP
Creation of the computer model of an industrial hall (or any type of hall) with noise sources.

Calculation of the attenuation of sound with distance (according to the French regulation of 30 August 1990), and of the sound pressure level inside the hall: noise and gain maps.
(Description)
Data to provide
Calculation frequency, dB(A) data or octave bands.
Plan and cross-section. See : (Instructions for sending drawings)
For each specific zone (zone with similar acoustic treatment or of same acoustic behaviour) - Name of the zone - Nature of the surface, or possibly type of occupancy /furniture, or absorption coefficient.
You provide levels as: - sound power levels (ref. 10-12 W) - ound pressure levels (ref. 2.10-5 Pa), in dBlin for octave bands, then specify the measuring distance (m) : and the 3 dimensions of the machine (approximative parallelepiped).


Results
Presentation of the volume and the acoustic treatments
The graph of the attenuation of sound with distance, slope calculated from 3 to 24 m (linear regression, conforming to the French regulation of 30 August 1990).
Noise map inside the hall.
Gain map between two different machine situations or two different treatments of the hall.

All the results come as displayable and printable images from your browser.

SOUND REDUCTION INDEX
Calculates the sound reduction index of the following types of construction elements (designated as panels)

Acoustic simulation
Single panel
Single panel lined with a fibrous or porous component
Multilayer panel (conected by points or sticking)
Fibrous or porous panel
Double panel (two panels with an intermediate layer), with any de-coupling factor
Triple, quadruple, quintuple etc. panel
Orthotropic panel: honeycomb or multiply structure
Results
A graph displaying the sound reduction index, by third octave from 50 Hz to 10000 Hz,
The sound reduction index results for the main structure -global : dB(A) "road" and "pink" for the 100 Hz to 5000 Hz bands, Stc, Rw and the maximum Rw deviation -detailed by third octave and octave, from 50 Hz to 10000 Hz.
A description of each single plate making up the panel: name (usually that of its material), number of plates, thickness, Young's modulus, volume and surface mass, critical frequency,

All the results come as displayable and printable images from your browser.

 


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