Hearably vs Letasoft Sound Booster
Letasoft Sound Booster is a Windows desktop app that amplifies system-wide audio. Hearably is a browser extension with per-tab control, EQ, and AI features. Different tools for different needs — here is how they compare.
Real-time enhancement via extension · Or upload a file for free in Studio
Letasoft Sound Booster has been a go-to Windows utility for users who need their computer to be louder. At $19.95 for a lifetime license, it installs a system-level audio driver that intercepts Windows audio output and amplifies it up to 500%. For users with quiet laptops, weak speakers, or hearing difficulties, Sound Booster provides a straightforward system-wide volume increase that works with every application.
Hearably approaches the problem from the browser side. As a Chrome and Edge extension, it uses the Web Audio API and tabCapture to process audio on a per-tab basis — no drivers, no system modifications. Where Sound Booster provides raw volume amplification, Hearably provides a complete audio processing chain: 10-band EQ, multiband compression, look-ahead limiting, and AI-powered live captions. The trade-off is scope: Hearably only processes browser audio, while Sound Booster covers everything on the system.
The right choice depends on where your audio problems are. If you need louder audio from desktop applications like Spotify, VLC, offline games, or creative software, Sound Booster's system-wide approach is the only option. If your audio consumption is primarily in the browser — YouTube, Netflix, Spotify Web, Zoom, Google Meet, Twitch, online courses — Hearably offers more features, better audio quality, and a free tier that Sound Booster does not match.
For the majority of users in 2026, browser audio is the dominant audio source. YouTube alone accounts for more daily listening time than all desktop music apps combined for the average consumer. Add Netflix, web-based conferencing, and streaming music web players, and the browser handles 80-90% of most people's audio. For this majority, Hearably's browser-level processing covers the audio that matters most, with per-tab precision and professional DSP quality that Sound Booster cannot match at the system level.
Need the same fix elsewhere? See also Hearably vs Boom 3D, Hearably vs FxSound and Hearably vs Volume Booster — all three use the same audio engine, tuned per platform.
System Audio Driver vs. Web Audio API Processing
Letasoft Sound Booster installs a virtual audio driver on Windows (WASAPI-based) that sits between applications and the physical output device. All audio from every application passes through this driver, where Sound Booster applies a gain multiplier. The approach is simple and effective for raw volume increase, but it has inherent limitations: the driver processes a single mixed audio stream, so it cannot treat different applications differently. There is no per-app EQ, compression, or preset system — just a single volume knob for the entire system.
Sound Booster's amplification at high levels relies on basic gain with simple clipping prevention. This works adequately at moderate boost levels (150-200%) but introduces audible artifacts at 300%+. The lack of a look-ahead limiter means peaks are caught reactively rather than anticipatively, resulting in harsher transient handling. Additionally, the driver approach adds 15-25ms of latency to the audio pipeline, which is imperceptible for media but can cause lip-sync drift on video calls.
Hearably operates within Chrome's Web Audio API context. The tabCapture API captures each tab's audio as a MediaStream, which is then routed through an offscreen document containing the full DSP chain: 10-band parametric EQ (BiquadFilterNodes), 3-band Linkwitz-Riley crossover (cascaded Butterworth filters, phase-aligned), per-band compressors with adaptive ratios, per-band direct gain stages, and a look-ahead limiter AudioWorklet with a 5ms circular buffer. Each tab gets its own independent instance of this chain. Total latency is under 10ms. The look-ahead limiter ensures zero distortion at any boost level — including 800% — by anticipating peaks and applying smooth gain reduction before they arrive.
How to get the best audio on Hearably vs Letasoft Sound Booster
Choose Sound Booster if you need system-wide volume on Windows
Sound Booster's strength is covering everything on your Windows PC — desktop Spotify, VLC, offline games, system sounds. If your laptop speakers are genuinely too quiet for everything and you need a universal volume increase, Sound Booster delivers.
Choose Hearably if your audio is primarily in the browser
If YouTube, Netflix, Spotify Web, Zoom, and Twitch are where you listen, Hearably covers all of it with per-tab control, EQ, compression, and AI captions. The browser is your audio platform — enhance it directly.
Choose Hearably for cross-platform support
Sound Booster is Windows-only. Hearably works on Windows, macOS, Linux, and ChromeOS — anywhere Chrome or Edge runs. If you switch between a Windows desktop and a MacBook, Hearably provides consistent audio enhancement on both.
Choose Hearably if you want a free option
Hearably offers a free tier with 120% boost and 3-band EQ. Sound Booster has no free version — it costs $19.95 upfront (with a limited trial that adds audio interruptions). If budget matters, Hearably provides genuine value at zero cost.
Choose Hearably for audio quality at high boost levels
Hearably's look-ahead limiter produces zero-distortion output at 800%. Sound Booster's simpler gain approach introduces noticeable artifacts above 300%. If clean audio quality matters to you at high volume, Hearably is technically superior.
Consider both for complete coverage
Sound Booster handles desktop apps, Hearably handles browser audio with per-tab precision. They operate at different levels and do not conflict. Use Sound Booster for system audio and Hearably for browser audio to get the best of both.
Built for this exact use case
Per-Tab Audio Control
Each browser tab gets independent volume, EQ, and presets. A quiet Zoom call at 300% while Netflix plays at 150% with Cinema mode — simultaneously. Sound Booster applies one volume level to all system audio.
10-Band Parametric EQ
Shape audio precisely across 31Hz–16kHz with ±12dB per band. Cut bass rumble on calls, boost presence for speech clarity, add warmth to music. Sound Booster offers no EQ capability.
Look-Ahead Limiter
A custom AudioWorklet examines peaks 5ms before output, ensuring zero distortion at any boost level. Sound Booster uses simpler gain with basic clipping prevention that introduces artifacts at high levels.
Live AI Captions
Real-time AI transcription generates live captions for any browser audio. Invaluable for accessibility, language learning, or noisy environments. Sound Booster has no caption or transcription features.
Choose your method
Different situations call for different tools. Hearably gives you both.
Chrome Extension
Enhance audio live while you stream. The extension intercepts your tab's audio and processes it in real-time — volume boost, EQ, presets — without downloading anything.
- Streaming on Hearably vs Letasoft Sound Booster, Netflix, Spotify
- Video calls on Zoom, Meet, Teams
- Any website with audio
- When you want instant, always-on enhancement
Free Online Studio
Upload an audio or video file, apply volume boost + 10-band EQ, preview in real-time, then download the enhanced WAV. Your file never leaves your browser.
- Downloaded videos or music files
- Podcast episodes you want to boost before sharing
- Voice recordings, lectures, interviews
- When you need a permanently enhanced file
Pro tip: Use a YouTube-to-MP3 tool to download the audio, then enhance it in Hearably Studio with EQ + volume boost. Perfect for offline listening, DJ sets, or sharing on social media.
Three clicks to better audio
Install
Add Hearably from the Chrome Web Store. Under 300KB, installs in seconds.
Enhance
Click the Hearably icon and tap "Enhance." Boost kicks in instantly.
Enjoy
Adjust volume, EQ, and presets. Works on any website with audio.
Hearably vs Letasoft Sound Booster
| Feature | Hearably | Letasoft Sound Booster |
|---|---|---|
| Price | Free tier available. Pro: $4.99/mo or $49.99/yr | $19.95 one-time (Windows only) |
| Platform | Chrome & Edge on any OS (Windows, macOS, Linux, ChromeOS) | Windows only |
| Scope | Browser audio only (per-tab control) | System-wide (all applications) |
| Max boost | 800% with look-ahead limiter (zero distortion) | 500% with basic gain (distortion above 300%) |
| EQ | 10-band parametric (31Hz–16kHz, ±12dB) | None |
| Multiband compression | 3-band Linkwitz-Riley crossover + per-band compressors | None |
| Per-tab / per-app control | Yes — independent chain per tab | No — single system-wide volume |
| Latency | <10ms | 15–25ms (system driver pipeline) |
| Live AI captions | Yes (Pro) | No |
| Installation | Browser extension, 3 seconds, no admin | Desktop app + audio driver, admin required |
Frequently asked questions
Does Letasoft Sound Booster work on macOS?
No. Sound Booster is Windows-only. Hearably works on any platform that runs Chrome or Edge: Windows, macOS, Linux, and ChromeOS.
Can Sound Booster boost individual apps?
No. Sound Booster applies a single volume multiplier to all system audio. It cannot boost one app while keeping another at normal volume. Hearably provides per-tab control within the browser.
Which has higher maximum boost?
Hearably offers up to 800% (8x) boost. Sound Booster offers up to 500% (5x). More importantly, Hearably maintains clean audio at 800% via its look-ahead limiter, while Sound Booster introduces distortion well before its 500% maximum.
Does Sound Booster have an EQ?
No. Sound Booster is purely a volume amplifier — it increases the gain of all audio equally across all frequencies. Hearably includes a 10-band parametric EQ for tonal shaping in addition to volume boost.
Is Sound Booster a one-time purchase?
Yes, $19.95 for a lifetime license. Hearably has a free tier, with Pro at $4.99/month or $49.99/year. For users who only need basic boosting, Hearably's free tier costs nothing. For full features, the annual plan is comparable to Sound Booster's one-time cost.
Can I use Sound Booster for Zoom calls?
Yes, but only system-wide. Sound Booster amplifies all audio equally, so it will boost Zoom along with everything else. Hearably can boost just the Zoom tab while keeping other tabs at normal volume.
Does Sound Booster work with games?
Yes — this is one of Sound Booster's strengths. It amplifies all system audio including games, which browser extensions cannot access. If offline gaming audio is your primary concern, Sound Booster is the better tool.
Which is safer to install?
Hearably is a browser extension under 300KB — no system drivers, no admin access required. Sound Booster installs a system-level audio driver that requires admin privileges and modifies the Windows audio pipeline. Browser extensions carry less system risk.