However, we cannot altogether remove the risk of speakers starting crackling. There are so many causes that can create this issue, but there are several simple steps that can significantly reduce the probability of crackling car speakers at low or high volumes.
Look for mechanical damage in the shielding, corrosion, or general wear. It happens that over time, speaker wires get loose, so make sure all connections are stable. Cables connections are especially crucial for subwoofers, where strong vibrations can cause connections to become loose. Correctly set filters will eliminate too much bass coming to the door speakers that could cause distortion.
Most car speakers are not designed for strong and deep bass, and forcing low frequencies to these speakers can cause them to overstress and finally damage. If you want to have bass, the simplest way is to install the subwoofer and isolate only frequencies over 80Hz to the door speakers.
Make adjustments to the bass and treble on the head unit accordingly, and you should reduce the risk of crackling sound. Too much bass has never been good for the music quality, and unless you are attending the competition, it should be avoided. Too much bass overstresses speakers and any volume level, and it does not matter how good speakers are. Having nice music in your car is one of the greatest achievements that can make your ride comfortable.
Many people make some simple mistakes that result in distortion of speakers when at high, or sometimes at the low volume. Others may install complex sound systems that cost them a lot but still fail to achieve a clear output. This may be a result of many issues in the car system configuration, or even in the car itself, but these few ways should allow you to reduce the probability of speakers starts to crackle.
Welcome to ImproveCarAudio! I am Martin, and I love to write about everything related to car sound systems. I strive to provide the most accurate and helpful information about car audio through extensive research, as well as my experience with car audio installations.
At the trough, or negative peal maximum negative voltage in a particular cycle , the driver is pulled as far inward as it will be during the cycle. This sine wave represents a single-frequency audio signal. The dotted line represents no voltage. The maximum positive voltage forward current flow is shown at the peak, while the maximum negative voltage backward current flow is shown at the trough. When the signal is at its zero point the dotted line , the speaker will be at resting position.
This is because no voltage is applied to the speaker driver, even if only for an instant while the electrical current switches direction. At the peak, the speaker is pushed as far out as it will be during the cycle. At the trough, the speaker is pulled as far in as it will be during the cycle.
The resulting waveform could look something like this:. In this case, the audio signal and resulting speaker driver movement are not smooth.
For a brief moment, the current is interrupted, which produces a period of no voltage. We can infer that, for a brief moment, the speaker will be told to remain at rest position and not produce any sound. The pop is not from the silence of the speaker but from how the speaker is told to get to its rest position. In the diagram above, we see that the audio signal current interruption happens just after the peak.
At this point, the audio signal drops off instantaneously. The speaker driver is, therefore, tasked with being at two physical locations at the same time. In this case, it should be pushed outward and at resting position simultaneously. This is impossible. So rather than teleporting, the driver attempts to move as fast as it can between the two locations at the current interrupt.
This results in a popping or clicking sound. What happens if the current interruptions happen very often, as is the case with faulty lead wires? As we can see, there are 4 instances where the speaker is told to be in two different locations simultaneously. Another basic audio waveform in audio synthesis is the square wave. As the name suggests, it looks something like this:. It is basically the golden rule when it comes to the connection between amplifiers and speakers.
Thirdly, a fix may be as simple as replacing an auxiliary 3. To find out which wire may be at fault, it may be helpful to move each wire at lower volumes to see which one could be causing possible distortion. As mentioned in the cause of speakers crackling or popping, there is a specific threshold of maximum volume that a speaker can produce when playing an audio file. This is the same when it comes to distortion, wherein it has its own threshold limit.
But instead of the maximum volume it can handle and produce, it refers to the maximum output an amplifier can handle and produce, wherein it is passed to the drivers of the speaker unit. As mentioned with the Sine Wave image chart explanation, both the upper and lower dotted lines represent no voltage in that area, meaning that no audio signals which are electrical currents cannot pass through. Additionally, do take note that the blue line represents an unamplified audio signal, wherein it meets the threshold limit of the amplifier.
The red line, however, represents the amplified state of the audio signal, wherein the amplification level is beyond what the amplifier limit can handle. The red line happens when the volume is greatly increased by the user, which the gain for that audio source is amplified by the amplifier unit to match the command in the increase of volume as a result.
Lowering the volume will turn the line to blue eventually, wherein the amplification will be lowered to match the decreased volume level.
As we can see from the information above in this article, the crackling and popping issue of many speaker units in the market today are somewhat related to speaker distortion and vice-versa. Both issues almost have the same explanation as to why they are happening, albeit having different root causes of the issue and explanations as to why the problems are happening for each issue.
Still, the ways and solutions in fixing both problems are similar in nature; most of them involve the components of the problem, such as the audio source, the connections used, and the driver speakers. The best way to avoid having either issue is to make sure that all components are working well and are in top condition while having the best and proper connection between each component.
Additionally, make sure that all of those components are damage-free. Cables Monitors Contact. Quick Navigation. Can the Crackling and Popping of Speakers be Fixed? What is Audio Distortion? Sine Wave without Interruption. Sine Wave with Interruption. Sine Wave with Multiple Interruptions. Leave a Reply Cancel reply. Search for: Search. Loading Comments Email Required Name Required Website.
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