This is particularly the case with DSLR and mirrorless cameras that have a 3.5 mm microphone input jack. It’s sad but true even if you spend a few thousand dollars on what is in fact a really nice camera, the reality is most of what you’re paying for goes towards all the things that make the camera’s images and video look good, not sound good. Unfortunately for filmmakers, that weakest link is often the camera’s audio input (or microphone preamp).

Since lower quality audio components have the most potential to create noise, it makes sense to look for the weakest link in the audio signal chain when trying to prevent hiss. This is why, in general, more expensive audio gear, which typically uses higher quality components and better designs, has a lower noise floor. The ultimate level of noise depends on the quality of the components and the design of the circuitry. The level of a circuit’s inherent noise is called a noise floor, expressed in decibels (dB).Īll audio circuits generate some amount of noise it’s the inevitable result of the heat energy that moving electrons create. The cause of hiss noise is the electronic components themselves, referred to as inherent or self noise. From a technical standpoint, this would be similar to the sound of blue noise.

Hiss is a broadband noise that spans the entire audible spectrum but with more intensity in the high frequencies. Here we’ll discuss some things you can do to avoid getting hiss in your audio, and one way to mitigate it after-the-fact. There are many types of noise that can plague an audio track, but hiss is probably the most commonly encountered in videography and filmmaking. We’ve all been there: you got what you thought was the perfect take, but after sitting down to watch or edit the video you realize there’s this awful, incessant hissing noise that’s ruining everything! This was probably followed by some feelings of distress as you weighed the cost and benefits of redoing everything or keeping it as it is.

How to remove buzzing noise from mic