Howtosignalprocessing
- What are the practical methods for measuring impulse response of an acoustic space?
- How do you measure impulse response?
- What are the applications of impulse response?
- What is impulse response and why do we use it?
What are the practical methods for measuring impulse response of an acoustic space?
The impulse response of an acoustical space or transducer is one of their most important characterization. In order to perform the measurement of their impulse responses, four of the most suited methods are compared : MLS (Maximum Length Sequence), IRS (Inverse Repeated Sequence), Time-Stretched Pulses and SineSweep.
How do you measure impulse response?
The simplest way of measuring an impulse response is often the use of an impulsive source signal such as a clap of your hands, a balloon or a blank pistol. By selecting External Impulse, the response to an impulsive signal is simply recorded without any subsequent processing.
What are the applications of impulse response?
In acoustic and audio applications, impulse responses enable the acoustic characteristics of a location, such as a concert hall, to be captured. Various packages are available containing impulse responses from specific locations, ranging from small rooms to large concert halls.
What is impulse response and why do we use it?
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse. More generally, an impulse response refers to the reaction of any dynamic system in response to some external change.
