This page explains the causes and solutions for Insufficient Volume and Clipping.
In fact, Insufficient Volume and Clipping may occur in conjunction with each other.
Insufficient Volum
This is a situation where the volume is low compared to the surrounding noise and it is difficult to hear.
Cause
Simply put, the cause of this problem is that the volume is not high enough. There are two possible reasons why the volume is insufficient.
One of the reasons is that there are not enough speakers (SP).
Simply put, the cause of this problem is that the volume is not high enough. There are two possible reasons why the volume is insufficient.
One of the reasons is that there are not enough speakers (SP).
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The sound emitted from the SP becomes smaller as it gets further away from the SP. Many people know this, but what is often overlooked is the existence of background noise. The sound coming from the SP must be louder than the background noise. It is said that 10dB or more is sufficient, but the level of background noise varies depending on the location. In other words, it is not possible to say exactly how many dB is required.
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The other problem is that even if the volume is sufficient, it is not uniform. Someone in a 90dB location might find the sound too loud and request that the volume be turned down by about 10dB. In this case, the volume that was originally 80 dB will become 70 dB, which is lower than the volume of background noise. It may seem that sufficient volume was secured in the design, but if it is not uniform, the volume may not be sufficient in actual operation.
This means that, operationally, there is no difference from the case described above. |
Solution
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The solution is to install a sufficient number of SPs for background noise.
Ideally, it would be nice to be able to measure background noise in advance, but that would be difficult. Background noise levels vary within the same type of facility, depending on region and culture. Take measurements in similar locations or look for studies on background noise in your area. And, a sufficient number of SPs must be installed so that the sufficient volume compared to the volume of background noise is evenly distributed. |
Clipping
Cause
Clipping occurs when the input signal is higher than the level that the device can tolerate. There are several reasons why this can happen, but one of them is insufficient volume as mentioned above.
If the volume is insufficient, the volume on the output side: amplifier (AMP) is often already set to maximum by the user or installer. The next method they try is to increase the volume (line level or MIC level) of the input side of the mixer. However, line level or MIC level tends to be distorted if the volume is raised too high. In other words, clipping occurs as a secondary problem to the problem of insufficient volume.
Clipping occurs when the input signal is higher than the level that the device can tolerate. There are several reasons why this can happen, but one of them is insufficient volume as mentioned above.
If the volume is insufficient, the volume on the output side: amplifier (AMP) is often already set to maximum by the user or installer. The next method they try is to increase the volume (line level or MIC level) of the input side of the mixer. However, line level or MIC level tends to be distorted if the volume is raised too high. In other words, clipping occurs as a secondary problem to the problem of insufficient volume.
Solution
This is the same as above. A sufficient number of SPs must be installed. Sufficient volume must be ensured by the output side: AMP and SP. This is not the role of input side: mixer or preamp.
This is the same as above. A sufficient number of SPs must be installed. Sufficient volume must be ensured by the output side: AMP and SP. This is not the role of input side: mixer or preamp.
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