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15. März 2005 · Early Reflections. By Sweetwater on Mar 15, 2005, 12:00 AM. According to standard definitions, early reflections are sounds that arrive at the listener after being reflected maybe once or twice from parts of listening space, such as walls, ceilings and floor. They arrive later than the direct sound, often in a range from 5 to 100 ...
- Tap
The definition that is most pertinent to music technology is...
- Discrete
Discrete - What is "Early Reflections"? - Sweetwater
- Diffuse
Diffusion is a very important consideration in acoustics...
- Ms
Ms - What is "Early Reflections"? - Sweetwater
- Reverb
Reverb - What is "Early Reflections"? - Sweetwater
- Parameters
Parameters - What is "Early Reflections"? - Sweetwater
- Delay
The longer a signal needs to be stored, and the higher the...
- Feedback
Feedback - What is "Early Reflections"? - Sweetwater
- Tap
18. Apr. 2023 · Early reflections are the first sound waves that bounce off surfaces in a room after being emitted by a sound source. They arrive at the listener's ears after the direct sound, creating the perception of spaciousness and depth in a sound field. Early reflections play an important role in the timbre and spatial qualities of sound in a ...
As I understand it, early reflections are the first sound bounces that reach our ears after bouncing off the closest surfaces, and they inform our brains about the size of a room.
1. Apr. 2020 · Early reflections level. This parameter sets the level of the first group of echoes that occurs when sound waves hit walls, ceilings, etc. These reflections tend to be more defined and sound more like “echo” than “reverb.” Prominent early reflections tend to work better with sustained sounds, such as vocals and pads, than percussive sounds.
- Room Impulse Response
- Observing Early Reflections
- Dealing with Early Reflections
- Autocorrelation Shaping
- Kurtosis Maximization
- Conclusion
In the room impulse response (RIR), the early reflections have a distinct character when compared to the other components. In particular, early reflections are represented by stronger coefficients than late reflections with more space between them. An illustration is shown below: Early reflections add color to the sound source, and are critical for...
Early reflections show up clearly in the autocorrelation of a speech signal, while they are all but hidden in the spectrogram. The autocorrelation measures how similar a signal is to a time shifted version of itself. Since a speech signal with early reflections contains the direct sound source as well as slightly delayed copies as shown in Figure 1...
In a dereverberation algorithm for voice quality enhancement, it is important that early reflections are handled. Here we will discuss the three most widely used methods for dealing with early reflections and thereby reducing coloration and the perception of distance.
Autocorrelation shaping is a method that adaptively modifies the autocorrelation of reverberant speech with early reflections to mold it into something more like clean speech without early reflections. For a given microphone, the autocorrelation of a stationary reverberant speech sample is computed as: Where our block processing notation allows us ...
Early reflection cancellation via kurtosis maximization was developed in . Its low computational complexity and easy to implement algorithm make it one of the most attractive options for dealing with early reflections. It works by adaptively computing filter taps that maximize the kurtosis of the incoming frame’s linear prediction residual. By assu...
Early reflections being picked up by a microphone are the principle cause of the perception of distance in an audio signal. Early reflections are modeled as sparse high energy impluses in the room impulse response, and have been shown to appear as extra energy in the first few peaks of the signals autocorrelation. Two methods for early reflection c...
Early Reflections 101. by Nyal Mellor September 07, 2015. One of the most common “generic” acoustic treatment recommendations is to treat the reflection points. Unfortunately properly managing early reflected sounds is actually very complex psychoacoustically.
9. Juli 2014 · What are early reflections reverb? Reflections are sound energy that strikes any room boundary surface and then strikes another surface and so on until the reflection losses energy and is reduced to below audibility. Reflections can occur between all walls along with floors and ceilings.
