Boost tab volume up to 600% with a limiter, 10-band EQ, presets, night mode, per-site memory, A/B compare, and private local audio.
Users
23
+12 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#146K
#122K among extensions
Version
1.2.0
updated 23 Sep 2026
Users
monthly, 2 months
Latest, 21 Oct 2026:23 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 21 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Smoothy Sound – Volume Booster & Audio Enhancer
🎧 SMOOTHY SOUND – VOLUME BOOSTER & AUDIO ENHANCER
Make quiet videos louder, improve dialogue clarity and customize browser audio directly inside Google Chrome.
Smoothy Sound gives you simple audio controls when you need them and advanced sound customization when you want more control.
Boost volume up to 600%, improve voices with ready-made presets, adjust sound with a 10-band equalizer and remember your preferred settings for different websites.
Audio processing happens locally on your device. No account, advertising, analytics, telemetry or audio uploads.
🔊 VOLUME BOOST UP TO 600%
Increase the audio level of supported browser tabs from 100% up to 600%.
Use the volume slider for precise control or quickly select:
100% • 125% • 150% • 200% • 300% • 600%
Safe Boost is enabled by default to help control excessive audio peaks at higher volume levels.
The 600% setting is a maximum processing level, not a recommended everyday listening level. Start low and increase gradually.
🎙️ CLEARER VOICES AND DIALOGUE
Make speech easier to hear in:
• Online classes
• Lectures
• Podcasts
• Interviews
• Movies and videos
• Voice-focused content
The Voice preset focuses on speech clarity so you can hear dialogue without manually adjusting every equalizer band.
🎶 READY-MADE AUDIO PRESETS
Choose an audio profile with one click:
• Flat
• Music
• Voice
• Movie
• Gaming
• Bass Boost
• Night
• Headphones
Switch presets at any time based on what you are watching or listening to.
🎛️ 10-BAND GRAPHIC EQUALIZER
Fine-tune your browser audio with a complete 10-band equalizer.
Available frequency bands:
31 Hz • 62 Hz • 125 Hz • 250 Hz • 500 Hz
1 kHz • 2 kHz • 4 kHz • 8 kHz • 16 kHz
Each band can be adjusted from -12 dB to +12 dB.
For faster adjustments, use the simplified Bass, Mid and Treble controls.
You can also save up to 24 custom EQ presets for your preferred sound profiles.
🛡️ SAFE BOOST
Safe Boost applies local dynamic control to help manage excessive peaks when using higher volume settings.
Safe Boost can reduce unnecessary clipping and sudden level spikes, but it does not replace responsible listening.
Always use a comfortable volume, especially with headphones.
✨ SMART BOOST
Smart Boost is a local rule-based leveling mode designed to bring quieter audio content forward.
It can be useful for videos or recordings with low or inconsistent audio levels.
Smart Boost works locally and does not upload or analyze your audio on an external server.
⚡ COMPARE ORIGINAL AND ENHANCED AUDIO
Use A/B Compare to hear the difference between the original and processed audio.
Original:
Hear the sound without Smoothy Sound’s enhancement settings.
Enhanced:
Hear the sound with your selected volume, preset and audio processing.
Switch between them to decide which settings sound better to you.
🎧 HEADPHONE AND STEREO TOOLS
Smoothy Sound includes additional controls for different listening situations:
• Left and right audio balance
• Mono audio mode
• Headphone-focused preset
• Quick mute
• Instant reset
• Original and enhanced comparison
Mono mode may be useful when one channel is missing or when you prefer to hear both channels together.
📊 LIVE AUDIO VISUALIZATION
View your audio activity in real time with:
• Live audio level meter
• Spectrum visualization
• Original and enhanced level information
• Active-audio status
Visual effects are reduced when the extension interface is not visible to avoid unnecessary animation work.
🖥️ POPUP AND SIDE PANEL CONTROLS
Use Smoothy Sound in two ways.
Toolbar Popup:
• Adjust volume quickly
• Select an audio preset
• Enable or disable enhancement
• Compare original and enhanced audio
• Open the complete controls
Chrome Side Panel:
• Control volume
• Use presets
• Adjust the 10-band equalizer
• View audio meters and spectrum
• Use A/B Compare
• Access stereo and audio tools
• Change appearance settings
The side panel lets you keep Smoothy Sound open while continuing to use the active website.
🧠 OPTIONAL PER-SITE MEMORY
Smoothy Sound can remember selected audio preferences for different websites.
A saved website profile may remember:
• Volume level
• Selected preset
• Enhancement enabled or disabled
Up to 500 website profiles can be stored locally.
Per-site memory can be disabled from the extension settings.
Saved website preferences remain inside Chrome’s local extension storage and can be cleared from the Options page.
⌨️ KEYBOARD SHORTCUTS
Control common Smoothy Sound features without opening the popup.
Available commands include:
• Volume up
• Volume down
• Mute or unmute
• Enable or bypass enhancement
• Music preset
• Voice preset
• Movie preset
• Bass Boost preset
• Night preset
Additional shortcuts can be assigned from Chrome’s extension shortcut manager.
🎨 CUSTOMIZABLE APPEARANCE
Choose an interface style that matches your browser setup.
Available appearance options include:
• Dark theme
• Light theme
• System theme
• Multiple accent colors
• Optional visual effects
• Reduce Motion support
🔒 PRIVATE BY DESIGN
Smoothy Sound is designed around local audio processing.
• No account required
• No advertising
• No analytics
• No telemetry
• No audio recording
• No audio uploads
• No external audio-processing server
• No selling of personal information
Audio processing happens locally inside Google Chrome using browser audio technologies.
The extension may temporarily use the active tab’s title and hostname to display active-audio tabs inside its interface.
Optional per-site preferences store the website hostname and selected audio settings locally on your device.
Smoothy Sound does not collect passwords, cookies, private messages, form submissions or the written contents of websites.
🔐 WHY PERMISSIONS ARE NEEDED
Storage:
Saves preferences, custom presets and optional per-site settings locally.
Side Panel:
Displays the complete Smoothy Sound controls beside the active tab.
Active Tab:
Allows the extension to interact with …