How To Bitcrush Audio
Bitcrush simulates the audio being played back using a low quality sampler with limited sample rate and bit depth. It can be used to create distorting effects that sound like that of scraping analog radio, or inherently lo-fi sound sources, like old video games. How to bitcrush audio? Alright so I edit stream highlights and I want to make some audio sound intentionally bad, lower the quality and make it sound like it came from a bad Limewire link or something. I tried looking it up on Google but I didn't really see a solution for my problem.
First, let's start off with what Bitcrushing is. Remember the old days of synthesis, Speak & Spell and early samplers? If you were to hear one today, you'd probably say to yourself, 'Damn, it sounds like someone beat up R2-D2.' They really have an ugly edgy quality in the recordings. It's a very distinct sound.
But it wasn't just electronic devices geared towards electronic music that had a sound like this. There were also loop pedals for guitars that had a very lo-fi sound, early digital guitar pedals, distortion pedals, certain amps, etc. Really, when you think about it, every decade that used digital recording (80s, 90s) had a particular sound.
So, again, what is Bit Crushing? It's a process by which you lower the sample resolution and bit rate of a recording. For example: changing the recording from an audio CD'which has a sample rate of 44.1 kHz at 16-bit'to make it sound like it's being played on a Commodore 64. Or, taking a piano recorded at a sample rate of 96 kHz and 32-bit, using the best mic in the world (the *enter favorite mic here*) , and adjusting the bit rate in real-time to 8-bit so that it resembles an Atari 2600 game.
Why Bitcrush Anything?
But again, why would you do this?! I can answer this:
- Pristine sound = Classical track.
- Pristine sound + bit crusher = Dirty, growly recording with a lot of character.
Keep in mind, it's not for every song, every instrument, etc. It's for tracks that need a raw, evil character.
Step 1
Let's take a look at the Logic Bitcrusher now and also listen to a little before and after:
The dry audio sample:
To look at this plug-in, one might think that it would be more suitable for space-age romps through the stratosphere. There'd be dragons here.
Step 2
The Drive slider is what you use to introduce an overdrive effect into your bitcrushed track. If you increase it, you'll notice that the graphic in the middle changes. Basically, you're getting that distorted speaker sound, without getting making the signal peak. Yes, it does increase the overall signal, but not a ton. I would still recommend slapping a limiter on this bad boy. Perfect for nasty drum loops, guitars, growly synths, etc.
Let's hear this bass synth with the Drive cranked:
Step 3
Next up would be the Downsampling, which controls the simulated sample frequency, and the Resolution slider, which lets you adjust the bit rate.
Let's adjust the Resolution and Downsampling slider and see what we've got.
Lower Resolution sample:
Step 4
Finally, you've got the Mode buttons which determine the type of digital distortion you are getting. These modes are much more fun when you actually experiment with them, other than reading about them. But the Clip level is critical to cover, as it sets the threshold of the channel strip of basically where the distortion starts. And, if you click the arrow at the bottom, you actually can adjust the mix of how much bitcrushing is applied.
Tp-link tl-wn951n driver windows 10. Alright, there's my sermon. Hopefully, this has sparked an interest in trying out the old Bitcrusher. If you're looking for a little dirt in your recording, you couldn't get a filthier partner in Logic Pro!
Distortion is a pretty versatile effect. If you're wondering how to use audio distortion to add warmth or some extra bite to your sounds, it does the trick. In this post, we’ll be going through the various types of this effect plugin such as Overdrive, Clip, Fold-back, Decimate and Bitcrush, so stick around if you want to learn what they all do.
How To Bitcrush Audio
If you have no clue what distortion is, that's fine! This is mainly focused on digital distortion in music and sound design but can be used in many forms of audio.
- Overdrive will simulate overloading the input with gain making it sound more aggressive or crunchy.
- Clip essentially cuts off anything above a certain threshold of the waveform. This flattens it out and removes some of the signal.
- Foldback on the other hand usually takes the point where clip would cut it off and will fold back (or flip) anything above that threshold.
- Decimate is quite simple, it reduces the sample rate of the signal.
- Bitcrush This is similar to Decimate as it takes the original sound and usually reduces its bitrate but can also reduce the resolution and sample rate too.
If you would rather watch the video than reading, you can watch the video here, which includes examples of what each parameter does to a sound.
Audacity Bitcrusher
Amount: One of the most common parameters in distortion effects is the amount option. This determines how harsh the distortion will be. From what I understand, the Amount control is quite similar (if not the same) as Drive.
How To Bitcrush Audio Interface
Drive: The drive control varies across different plugins. Typically, Drive will either determine the input or output gain. This will saturate the sound (either more or less) depend on what you have it set to. At a low setting, it should create a softer sound. As you turn it up, you'll start to hear a much warmer and full sound, adding some harshness.
Filter: Having a filter on a distortion effect allows for control over what part of the frequency spectrum is affected. This is essentially an equalizer, but usually, will only come as high and low cutoff filter. Now, this is pretty good as it doesn't make EQ overly complicated, yet still provides you with the ability to choose specific frequency regions to distort. You can isolate the effect to only saturate the low end with a low pass filter. You can also choose where the curve starts to drop off with the frequency control. To distort the higher frequencies instead, you can use a high pass.
Dry & Wet: As per usual, the majority of all software effects have a dry and wet knob. In distortion plugins, you'll often find it called 'mix' which just refers to the mix of the dry (unprocessed) sound with the wet (distorted sound). Some will come as two individual controls, while others will be together in one knob or slider.
Distortion is an effect that will react to the amplitude of the signal that passes through the effect plugin. To change the tone of the distortion, you can increase the gain of the input signal and then reduce it after it has been processed by the effect to return the dB level back to normal.
The frequency of the input signal can also have an impact on how the distortion plugin affects the signal. Automate the input frequency by using an EQ or a Phaser to create movement in the input. It’s critical to add this frequency change before the distortion on the effect chain.
When dealing with distortion in a mix, it’s good to balance distorted & un-distorted sounds to complement each other. Using this effect on too many elements or simply having too much on a single sound can lead to a perhaps obvious unpleasant sound, so be disciplined with using it.
Learn more about how to use audio effects in music production.
If you liked this tutorial about how to use audio distortion in music and sound design, share this with a friend! Thanks for reading, let me know what you think in the comments below.