Then suddenly, a bass audio signal comes into play and completely overwhelms the tweeter. It can make speakers pop at high volume. Another problem also with overloading is that overloading may not handle excess electricity properly. Undissipated electrical energy may cause heat which can result in voice coils melting and burning. It may result wherein your speakers will have broken electrical connections, which may, in turn, prevent speakers from producing quality sound or make any sound at all.
You want that speaker to sound loud. So you turn the volume up, but it seems like your amplifier could only supply so much electricity! Oh, what shame. Underloading your speakers is one reason why a crackling, popping sound comes off from your speakers whenever you turn the volume up.
To create louder sound requires more electricity. Most people have a misconception about the causes of distortion in loudspeakers. Many have expressed their opinions on how overloading is the common reason that speakers create distorted sounds. Many people come to contemplate on choosing which speaker to buy, the biggest, the loudest, the smallest, the sweetest. Yet, many buy the amplifier as an afterthought. As you raise the volume of your speakers, the drivers will need to extend further and faster.
With this, the speaker will need a lot more power to continue creating good sound quality. It can create a situation where speakers pop at high volume.
Underloading and overloading. When these situations happen too often at your speakers, they may cause permanent physical damage.
And with this, your speakers may permanently produce distorted sound. When the speaker gets too hot, wires may melt, and adhesives used within the interiors of your speaker may not work. It can result in distorted sound or no sound at all.
Tone it down. Those are the three words that can solve most of your speaker-related problems. 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:.
A perfect square wave would actually sound terrible played back through a speaker. There would be an inherent crackle in the waveform due to its sharp adjustment from maximum positive to maximum negative voltage and vice versa that happens in every cycle. In practice, the square wave actually resembles something like this:. There is a steep transition between the max and min voltages that allows the speakers to oscillate linearly without having to attempt the impossibility of being in two places at once.
If a digital audio signal is cut off abruptly, the signal could instantly go from some amplitude to zero amplitude. This sudden drop in the digital signal shows up as an interruption in current when the audio is passed through a digital-to-analog converter. The analog signal effectively tells the speaker driver that it needs to be in two places simultaneously.
This crackle is not caused by the same current interruption as the aforementioned audio pops and crackles. The bulk of this noise is caused by static electricity and dust. Vinyl naturally holds on to a decent amount of static electricity. Some of this static electricity is picked up as noise by the needle cartridge before it is amplified and sent to the speakers. You can determine if the cable connection being used is faulty by wiggling it while connected and playing an audio file.
If the soldering connection is poor and improperly done, it will highly cause the issue instead. Re-soldering the connection is the best solution for this. Another thing to check out when trying to fix this issue is by checking the connection ports, such as the 3. Additionally, it is best advised to also check your amplifier by this time, as it can also be the source of crackling or popping. Basic troubleshooting can significantly help in this case.
It is best advised to purchase and install a new audio cable for connection if the issue persists even after fixing the connection and basic troubleshooting has been performed on both of your audio source and the speaker unit connected to it. But is it really related to that? But, keep in mind, there are two commonly acknowledged reasons as to why the audio output of speakers tends to distort at higher levels, which are the following:.
To imagine what an audio distortion looks like, you may refer to the Sine Wave image chart previously shown above. That is basically a waveform, wherein any kind of deformation to that will cause the audio output of the speakers to distort at the end of its transmission process. The deformation, in that case, is where the smooth travel of the S-shape line is suddenly cut and changed to a different shape and direction.
A speaker distortion means that there are differences in the waveform it produces that are significantly different from those produced by its driver. This kind of distortion is also the one that many commonly hear i. But not all can hear and identify it immediately, as only trained ears can clearly tell whether distortion is happening or not on a speaker. Do take note that even if one of those four mentioned above produces distortion wherein most of the four work together as one , the speaker unit will highly produce distorted sound itself as a result.
To avoid having distortions on your speaker units, there are two things that you need to keep in mind when you want to use them to their full potential. Those two things are having the correct and matching amplifier for your speaker unit and disregarding the power handling that many amplifiers have in their specification sheet.
First, having a properly matched amplifier can mean a huge thing when it comes to using your speakers for audio playback. Without a proper amplifier to support your speaker unit, there is a high chance for it to have the sounds and audio being played by it to be distorted as a result. Second, disregarding the power handling of amplifiers for your speaker unit is a must. If that happens, the only logical next step is to turn the volume down significantly until the distortion is gone.
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.
0コメント