A preliminary study of the speech clarity of the high-speed railway waiting hall – an example of Cheng Du railway station
Subjective evaluation of differences in concert hall shape using a multisource orchestra anechoic recordings auralized in 3D computer models
From measurements, through computer modelling, design and construction, back to measurements: acoustical modernization of 800 pupils primary school in Warsaw, Poland
Estimation of the background noise levels in large atria with known room acoustic properties and function
Acoustic regulations and design of the multipurpose hall and exhibition halls of the new Munch museum in Oslo
Combining image and equivalent sources for room acoustic simulations
Searching the musical rehearsal room
The room dimensions are important for the frequency distribution of the normal modes of the room. The influence of the dimension ratio is analysed in box-shaped rooms with volumes between 25 m³ and 300 m³. Three different criteria have been applied to evaluate whether the frequency distribution is favourable: a smooth frequency response, the variance […]
Sine Sweep Optimization for Room Impulse Response Measurements
The use of sine sweeps is a robust method to measure room impulse responses. One particular advantage is that the frequency spectrum of the excitation signal can be controlled in the time domain—by changing the rate of frequency change—while keeping the amplitude of the signal virtually constant over time. The sine sweep approach is adopted […]
Audio effects for multi-source auralisations
mplementing multi-source auralisations is essential for comprehensive acoustic studies of concert halls, operas, restaurants, and other spaces where many sound sources are active. Nowadays, room simulation programs and computers are fast enough to calculate the many impulse responses required for such auralisations in a short time. However, setting up the calculations for the entire ensemble […]
On the importance of sound strength in music rehearsal rooms
The standard ISO 23591 [1] on the acoustics of music rehearsal rooms was published in 2021. It gives upper and lower limits for the reverberation time as a function of volume and type of music. The standard also contains an annex in which a method is outlined for estimating the sound pressure level (SPL) in […]
