Tyler Wynn
For streamers and content creators using OBS (Open Broadcaster Software), minimizing unwanted background noise, such as key sounds, is crucial for maintaining professional audio quality. Key sounds, often produced by mechanical keyboards, can be particularly distracting and difficult to filter out during live streams or recordings. Fortunately, there are several effective strategies to keep OBS from picking up these sounds, ranging from hardware solutions like soundproofing and using silent keyboards to software adjustments such as noise suppression plugins and proper microphone placement. By implementing these techniques, creators can ensure their audio remains clear and focused, enhancing the overall viewer experience.
| Characteristics | Values |
|---|---|
| Microphone Placement | Position the microphone away from the keyboard to reduce mechanical keystroke sounds. |
| Microphone Type | Use a directional microphone (e.g., cardioid or supercardioid) to minimize background noise. |
| Shock Mount | Use a shock mount to isolate the microphone from vibrations caused by typing. |
| Pop Filter | Add a pop filter to reduce plosive sounds, though it may not directly affect key sounds. |
| Acoustic Foam/Panels | Install acoustic foam or panels around the recording area to absorb and dampen key sounds. |
| Keyboard Choice | Use a quieter mechanical keyboard or a membrane keyboard to reduce keystroke noise. |
| O-Ring Mod | Install O-rings under mechanical keycaps to dampen the sound of keystrokes. |
| OBS Noise Suppression | Enable noise suppression in OBS settings (Filters > Noise Suppression) to reduce key sounds. |
| Audio Gate | Use an audio gate in OBS to cut off audio below a certain threshold when not speaking. |
| Separate Audio Tracks | Record keyboard sounds on a separate audio track and mute/edit it in post-production. |
| Distance from Keyboard | Increase the physical distance between the microphone and the keyboard. |
| Desk Mat/Padding | Place a desk mat or padding under the keyboard to reduce surface vibrations. |
| Software Solutions | Use third-party software like Krisp or RNNoise to filter out key sounds in real-time. |
| Post-Processing | Use audio editing software (e.g., Audacity) to manually remove or reduce key sounds. |
| Headphone Monitoring | Use headphones to monitor audio and adjust settings in real-time to avoid key sounds. |
| Keyboard Dampening Pads | Place dampening pads or foam inside the keyboard to reduce internal resonance. |
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What You'll Learn
- Use Noise Gates: Set thresholds to mute background noise, including key sounds, during silent moments
- Adjust Microphone Placement: Position the mic away from the keyboard to minimize keystroke pickup
- Apply Audio Filters: Use EQ filters to reduce frequencies where key sounds are most prominent
- Soundproofing Techniques: Add foam panels or blankets around the keyboard to absorb sound
- External Audio Editing: Use software like Audacity to manually remove key sounds post-recording
Use Noise Gates: Set thresholds to mute background noise, including key sounds, during silent moments
Noise gates are a powerful tool in the audio engineer's arsenal, acting as a bouncer for your microphone, allowing only the sounds you want to pass through. In the context of OBS (Open Broadcaster Software) and the quest to eliminate unwanted key sounds, noise gates can be your secret weapon. By setting a threshold, you essentially create a volume-based filter, ensuring that only audio signals surpassing this level are captured. This is particularly effective for silencing the subtle clicks and clacks of your keyboard during moments of vocal inactivity.
The beauty of noise gates lies in their precision. You can fine-tune the threshold to target specific noise levels, ensuring that your key sounds are muted without affecting the overall audio quality. For instance, set the threshold just above the ambient noise floor, and any sound below this, including the gentle tapping of keys, will be silenced. This technique is especially useful for streamers and content creators who require crisp, clear audio but don't want the constant background noise of their mechanical keyboard to distract viewers.
Implementing noise gates in OBS is a straightforward process. Most audio interfaces and mixers, as well as OBS itself, offer built-in noise gate features. Start by identifying the 'Noise Gate' or 'Gate' function in your audio settings. Adjust the threshold until the background noise, including key sounds, is effectively muted during silent moments. Be cautious not to set the threshold too high, as this might cut off the beginning of your words or desired sounds. A good practice is to speak or produce the desired audio at a normal volume and then adjust the threshold just below this level.
While noise gates are incredibly effective, they require careful calibration. Overly aggressive settings can lead to an unnatural, choppy audio experience, where words or sounds are cut off prematurely. It's an art to find the sweet spot where background noise is minimized without compromising the natural flow of speech or desired audio. Regularly test and adjust your settings, especially if you're in a dynamic environment where noise levels fluctuate. With practice, you'll master the art of noise gating, ensuring your OBS audio is clean and professional, free from the distractions of key sounds and other unwanted noise.
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Adjust Microphone Placement: Position the mic away from the keyboard to minimize keystroke pickup
Microphone placement is a critical yet often overlooked factor in reducing unwanted keystroke sounds during recording. The proximity of your microphone to the keyboard directly influences the amount of keystroke noise it captures. By strategically positioning your mic, you can significantly minimize this interference without compromising audio quality.
Consider the physics of sound: the intensity of a sound decreases as the distance from its source increases. This principle applies to keystroke sounds as well. Moving your microphone just a few inches away from the keyboard can result in a noticeable reduction in keystroke pickup. For optimal results, aim for a distance of at least 12-18 inches between the microphone and the keyboard. If using a desktop mic, try placing it on the opposite side of the keyboard or at a higher elevation, such as on a mic stand or stacked books.
When adjusting microphone placement, be mindful of the polar pattern of your mic. Most streaming and recording microphones use a cardioid or supercardioid polar pattern, which is most sensitive to sound coming from the front. Position the mic so that the front of the capsule faces you, while the keyboard is off to the side or behind the mic's less sensitive areas. This simple adjustment can effectively reduce keystroke sounds without requiring additional equipment or software solutions.
A practical tip for gamers and streamers is to use a boom arm or adjustable mic stand. These tools allow for precise control over microphone placement, enabling you to experiment with different distances and angles to find the sweet spot that minimizes keystroke pickup. If you're using a headset microphone, try angling the mic boom slightly away from your mouth and towards your shoulder, which can help reduce the sensitivity to keystroke sounds while maintaining clear voice capture.
While adjusting microphone placement is a straightforward solution, it's essential to strike a balance between minimizing keystroke pickup and maintaining optimal audio quality. Placing the mic too far away can result in a distant or muffled sound, so be sure to test and adjust your setup accordingly. By combining proper microphone placement with other techniques, such as using a shock mount or pop filter, you can create a more professional and polished audio experience, free from the distractions of keystroke sounds.
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Apply Audio Filters: Use EQ filters to reduce frequencies where key sounds are most prominent
Key sounds, like the clacking of mechanical keyboards or the tapping of fingers, can dominate your audio stream, overshadowing your voice or other desired sounds. One effective way to mitigate this is by applying Equalization (EQ) filters to reduce the frequencies where these sounds are most prominent. EQ filters allow you to surgically adjust specific frequency ranges, minimizing unwanted noise without compromising the overall audio quality. This technique is particularly useful in OBS (Open Broadcaster Software), where precise audio control is essential for professional-sounding streams.
To begin, identify the frequency range of the key sounds you want to reduce. Mechanical keyboards, for instance, typically produce sounds in the 2–5 kHz range, while softer membrane keyboards may peak around 1–3 kHz. Use a spectrum analyzer or simply listen carefully to pinpoint the offending frequencies. Once identified, open OBS and navigate to the audio settings for your microphone source. Here, you’ll find the EQ filter option, often labeled as “Filter” or “Effects.” Add an EQ filter and set it to a narrow bandwidth to target the specific frequency range without affecting adjacent frequencies.
When adjusting the EQ filter, start by reducing the gain (volume) of the targeted frequency range by 3–6 dB. Be cautious not to overdo it, as excessive reduction can make the audio sound unnatural or hollow. Test the settings in real-time by speaking or typing while monitoring the audio output. If the key sounds are still noticeable, incrementally decrease the gain further, but avoid cutting more than 10 dB in any single band to maintain clarity. Remember, the goal is to minimize the distraction, not eliminate the sound entirely, as some background noise can feel more natural to listeners.
A practical tip is to use a high-pass or low-pass filter in conjunction with the EQ filter for broader noise reduction. For example, if your voice sits primarily below 100 Hz, apply a high-pass filter at 100 Hz to remove low-frequency rumble, then use the EQ filter to target mid-range key sounds. This dual approach ensures a cleaner audio signal while preserving the richness of your voice. Experiment with different combinations to find the balance that works best for your setup.
In conclusion, applying EQ filters in OBS is a powerful yet nuanced method to reduce key sounds. By identifying the right frequencies, making precise adjustments, and testing in real-time, you can achieve a polished audio output that keeps your audience focused on your content, not the background noise. With practice, this technique becomes second nature, elevating the overall quality of your streams or recordings.
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Soundproofing Techniques: Add foam panels or blankets around the keyboard to absorb sound
One effective way to minimize keyboard noise in OBS recordings is by strategically placing sound-absorbing materials around your keyboard. Foam panels, acoustic blankets, or even DIY solutions like thick towels can significantly reduce the clacking sounds that travel through the air and into your microphone. These materials work by trapping and dissipating sound waves, preventing them from bouncing back into your recording space. For optimal results, position the foam panels or blankets directly behind and to the sides of the keyboard, creating a semi-enclosed barrier that absorbs noise at its source.
When selecting foam panels, consider their thickness and density. Acoustic foam panels typically range from 1 to 3 inches thick, with denser materials offering better sound absorption. For keyboards, a 2-inch thick panel is often sufficient to dampen key sounds effectively. If using blankets, opt for heavy, tightly woven fabrics like moving blankets or quilted soundproofing blankets, which are more effective at blocking and absorbing sound than lighter alternatives. Ensure the materials are securely placed to avoid shifting during use, as gaps can reduce their effectiveness.
A comparative analysis of foam panels versus blankets reveals trade-offs in aesthetics, cost, and performance. Foam panels are more discreet and can be mounted on walls or stands for a cleaner setup, but they may be pricier and less versatile. Blankets, on the other hand, are affordable and can be easily repositioned or removed, but they can clutter the workspace and may not blend seamlessly into the environment. For streamers or content creators seeking a balance, combining both—using panels for permanent placement and blankets for additional coverage—can yield the best results.
Practical implementation involves more than just placement. Experiment with angles and distances to find the sweet spot where sound absorption is maximized without obstructing your typing. For example, angling panels slightly inward can create a more effective sound trap. Additionally, consider pairing this technique with microphone positioning adjustments, such as angling the mic away from the keyboard or using a directional microphone to further isolate unwanted noise. While no single method guarantees complete silence, combining soundproofing techniques can dramatically reduce key sounds in OBS recordings.
Finally, a word of caution: while foam panels and blankets are excellent for absorbing airborne sound, they do little to address vibration-based noise. If your keyboard’s mechanical switches or desk surface transmit vibrations, complement these techniques with vibration-dampening solutions, such as placing a rubber mat under the keyboard or using isolation pads. By addressing both airborne and structural noise, you can create a more comprehensive soundproofing strategy that ensures cleaner, professional-quality audio in your OBS recordings.
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External Audio Editing: Use software like Audacity to manually remove key sounds post-recording
Audacity, a free and open-source audio editing software, offers a powerful solution for removing unwanted key sounds from your OBS recordings. This method is particularly useful when you’ve already captured the audio and need to clean it up post-production. By leveraging Audacity’s noise reduction tools and manual editing capabilities, you can surgically eliminate keystrokes, mouse clicks, or other distracting noises without compromising the overall audio quality.
To begin, import your OBS audio recording into Audacity. Select a segment of the audio that contains only the background noise (e.g., the sound of your room or ambient hum). Go to *Effect > Noise Reduction*, click *Get Noise Profile*, and then apply the noise reduction to the entire track. This step helps minimize consistent background sounds, making it easier to isolate and remove transient noises like keystrokes. For more precise editing, zoom into the waveform and manually select each key sound using the *Selection Tool*. Once selected, simply hit *Delete* or use the *Silence Audio* option to remove the unwanted noise without leaving gaps.
A critical tip is to work in small increments, especially if your recording contains frequent key sounds. Audacity’s *Envelope Tool* can help smooth transitions between edited and unedited sections, ensuring the audio flows naturally. For particularly stubborn noises, experiment with the *Spectral Selection* feature, which allows you to target specific frequencies associated with keystrokes. This method requires patience but offers unparalleled control over the final result.
While external audio editing is effective, it’s not without limitations. Manual removal can be time-consuming, and over-editing may introduce artifacts or unnatural silences. To mitigate this, always keep a backup of your original file and work on a duplicate track. Additionally, combining this technique with in-recording solutions (like using a mechanical keyboard with quieter switches or a shock mount for your microphone) can reduce the need for extensive post-processing.
In conclusion, Audacity provides a versatile toolkit for removing key sounds from OBS recordings, making it an essential skill for content creators and streamers. By mastering its noise reduction and manual editing features, you can achieve professional-grade audio without investing in expensive equipment or software. The key lies in balancing precision with efficiency, ensuring your final product is both clean and engaging.
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Frequently asked questions
Use a noise gate in OBS's audio settings to filter out low-level sounds like keystrokes, or invest in a mechanical keyboard with quieter switches.
Enable the noise suppression filter in OBS's audio settings or adjust the noise gate threshold to eliminate background noises like typing.
Yes, use a directional microphone (like a cardioid or hypercardioid) positioned away from your keyboard to reduce key sounds.
Yes, positioning your microphone farther from the keyboard and using a shock mount can significantly reduce key sounds.
Yes, tools like Voicemeeter or Krisp can be used alongside OBS to filter out key sounds and other background noises.
