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Critical distance. Critical distance is, in acoustics, the distance at which the sound pressure level of the direct sound D and the reverberant sound R are equal when dealing with a directional source. As the source is directional, the sound pressure as a function of distance between source and sampling point (listener) varies with ...
- Introduction
- What Is Critical Distance?
- Calculating Critical Distance
- Let Us Transform Your Room’S Sound
- Summary
Room acoustics is the study of how sound behaves in an enclosed space. Critical distance is an important concept in room acoustics that is often overlooked. In this article, we will discuss what critical distance is, how it is calculated, and why it is important.
Critical distance is the distance from a sound source at which the direct sound and the reflected sound are equal in level. Beyond the critical distance, the reflected sound dominates and becomes louder than the direct sound. This can result in a loss of clarity and intelligibility of the sound.
The critical distancecan be calculated using the following formula: Dc = 0.057 * (S * RT60)^0.5 Where: 1. Dc is the critical distance in meters 2. S is the area of the room in square meters 3. RT60 is the reverberation time in seconds The reverberation timeis the time it takes for sound to decay by 60 dB after the sound source has stopped. It is a ...
At Acoustic Fields, we can assist you with determining critical distance and all the acoustical issues present in small rooms. We can assist you with critical distance, reverberation, room modes, and reflections as they relate to your room usages. Fill out the information in this link and schedule a time to speak with our engineers. We offer noise ...
Critical distance is an important concept in room acoustics that should not be overlooked. It is the distance from a sound source at which the direct sound and the reflected sound are equal in level. Calculating the critical distance can help in the placement of sound sources and listener positions in a room to achieve the best possible acoustic ex...
5. Feb. 2014 · Critical distance is that physical place in your room where the room sound from your room is mixed with the direct sound from the speakers. The direct sound is that sound which travels in the shortest distance between two points which is a straight line.
John M. Eargle. 48 Accesses. Abstract. Figure 17 is the first of many that will relate direct and reverberant field measurements in large enclosed spaces. The equation that gives the reduction in sound pressure as we move away from a point source is as follows: $$ { (P)^2} = {W_A} {\rho_0}c (Q/4\pi {r^2} + 4/R) $$ (17.1)
- John M. Eargle
- 1994
Critical distance is the distance between the microphone and the sound source at which the level of room reverberation is equal to the level of the direct sound. Placing the microphone farther away than this critical distance may lead to a "muddy" sounding recording because the room sound will be predominant, particularly in rooms with poor or ...
12. Aug. 2002 · Double the distance again ( to four feet), and again observe the change in level. Each time you should lose four to six (at the very most) dB of level. At some point one of your readings will result in a relatively minimal change in level. Somewhere between this point and your last reading is the critical distance.
9. Okt. 2017 · In ‘Thinking Through Tragedy: Critical Distance and the Law of Genre’, James Corby explores forms of distance and distantiation in the experience – classical and popular – of tragedy. Bringing together various theories of catharsis, he argues that the critical distance of tragedy can be understood as establishing the ...
