What Is Ideal Reverberation Time?

Around 2 seconds.
The optimum reverberation time for an auditorium or room of course depends upon its intended use. Around 2 seconds is desirable for a medium-sized, general purpose auditorium that is to be used for both speech and music. A classroom should be much shorter, less than a second.

What is a high reverberation time?

Speech intelligibility is also a function of reverberation, a high reverberation time causes speech to sound muffled and muddy. Rooms designed for speech therefore typically have a low reverberation time: ?1 second. A high reverberation time can enhance a music hall by adding richness, depth and warmth to music.

Which reverberation time is bad?

Rooms with a reverberation time of < 0.3 seconds are called acoustically “dead”. Typically, the reverberation time increases with the room volume. Smaller rooms with a reverberation time of > 2 seconds are commonly considered to be “echoic”.

What is the ideal reverberation time for a music hall?

Optimum values:
Generally, good concert halls have a reverberation time between 1.8 and 2.2 seconds at mid-frequencies.

What should be the range of reverberation time for speech?

Speech intelligibility of 100% is possible with reverberation times up to 0.4–0.5 s and this is the recommended range.

What is pre delay?

Pre-delay is a parameter found in reverb processors. It refers to the amount of time between the original dry sound, and the audible onset of early reflections and reverb tail.For example, a longer pre-delay will move the reverb tail out of the way of the vocals, making them much more present and understandable.

What is a good reverb time for a studio?

between 0.8 and 1.5 seconds
For average control room volumes, preferred reverberation times fall into the 0.3 to 0.4 second range. In recording studios the reverberation times are variable, and range between 0.8 and 1.5 seconds, depending on the size of the room.

What is early decay time?

Early Decay Time (EDT) is derived from the reverberation time decay curve; between 0 dB and 10 dB below the initial level.Echo Definition (IEC 801-31-21) sound wave that has been reflected and arrives with such a magnitude and time interval after the direct sound as to be distinguishable as a repetition of it.

What is the cause of reverberation?

A reverberation, or reverb, is created when a sound or signal is reflected causing numerous reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air.

Is reverberation good or bad?

Describing a reverb time as “good” or “bad” is largely dependent on how you plan to use the space.The longer time makes speech more difficult to understand, and this would frustrate patrons who like their caffeine with conversation. Classroom- A longer reverb time in a classroom would make life difficult for teachers.

What is a good sound absorption coefficient?

There is a way to quantify how much sound is reflected in a room by using a metric called the absorption coefficient. In a nutshell, an Absorption Coefficient is a measure of how much sound is absorbed, and NOT reflected.An effective absorber will have a sound absorption coefficient greater than . 75.

How can you reduce the reverberation time?

Reverberation can be reduced by using some kind of material on the walls or ceiling of the room that absorbs the sound waves rather than reflecting it. Plastics, fibreboards, or curtains are some of the substances that are used to reduce the reverberation of sound.

How do you calculate Rt 60?

RT60 is in reality the measurement of time it takes a given audio signal to fall -60db (decibels). The formula is RT60 = k*(V/Sa). In this formula, k is a constant that equals 0.161 when the units of measurement are metric (in meters for our use) and 0.049 when units are expressed in feet.

What is the reverberation time of a room?

The reverberation time of a room or space is defined as the time it takes for sound to decay by 60dB. For example, if the sound in a room took 10 seconds to decay from 100dB to 40dB, the reverberation time would be 10 seconds.

What is an example of reverberation?

An example of a reverberation is the sound bouncing around in a large speaker. An example of a reverberation is the impact of a no trespassing law at a shopping center on students at a nearby high school. An echo, or a series of overlapping echos. The reverberation that followed Marylin’s shout filled the cavern.

What is bass ratio?

The bass ratio is the relation between the reverberation energy in the frequency range up to 125Hz and in the frequency range between 500Hz and 1000Hz.

What is the best type of reverb for vocals?

And in general, that’s why plate reverb works well on vocals. Now, let’s go back to the idea of short decay times, because shorter decay times also work well on vocals, because we don’t want to make the vocal go too far back in the mix.

What is wet and dry reverb?

Dry simply means without any effects. Wet means with effects. Reverb is usually the effect/plugin that is used to control the front to back placement in a mix. The dryer the track (less reverb) the more forward it will be in the mix.

What is decay time reverb?

Decay time, a.k.a. ‘reverb time,’ ‘reverb tail,’ or ‘RT60’ Decay Time is the amount of time it takes for the sound pressure level (SPL) in a room to fall by 60 dB. If large and small rooms are constructed with the same materials, the large room will have a longer decay time.

What effects reverb in a room?

Materials that make up the room’s construction also affect reverberation time. Hardwood floors produce a longer reverberation time than carpets, which is why many classrooms have carpets and many concert halls have hardwood floors. Reverb time is very closely related to the time it takes objects to absorb sound.

What is Echelon effect?

If there is regular structure similar to a flight of stairs or asset of railways in the hall, the sound produced in front of such a structure may produce a musical note due to regular successive echoes of sound reaching the observer. Such an effect is called echelon effect.