What is CrystalSound?
CrystalSound is a desktop app that uses AI to remove background noise, echo and nearby voices from calls, meetings and recordings. It also records your screen with both sides of a call and can turn meetings into notes and keywords.
The app installs a virtual microphone and speaker on your computer. You pick your real headset in CrystalSound, then choose the CrystalSound devices in Zoom, Teams, Discord or OBS, and every sound passes through its filter on the way in and out. Processing happens on your own machine rather than on a server, and a slider lets you trade stronger noise removal against more natural speech.
Nami Technology JSC (Namitech) of Ho Chi Minh City, Vietnam, makes CrystalSound. Directories date its release to 2022, it ran a lifetime deal on AppSumo that is now sold out with a 4.19 rating from 48 reviews, and its website and download pages were online during our October 2026 review.
Key Features
What you send and what you hear on a call both get cleaned, thanks to CrystalSound’s two-way noise removal and My Voice Only.
- Two-way noise removal: CrystalSound filters both your microphone and the incoming audio from other participants. A colleague calling from a noisy café therefore sounds cleaner to you, even if they run no noise filter of their own.
- My Voice Only: This mode keeps your voice and suppresses other people speaking near your desk. You record a short voice profile in a quiet room, the app stores up to five profiles, and it aims to ignore speech beyond about two metres.
- Echo suppression: The app reduces room echo and the feedback loop created when speakers and microphone sit close together. This helps laptop users in bare home offices who take calls without a headset.
- Screen and call recording: CrystalSound records your screen together with both sides of the call audio and keeps the files in one library. Premium adds cloud call recording, while Enterprise offers offline recording that stays on the device.
- Meeting minutes: Recorded calls can be turned into summaries, keywords and insights according to the homepage. The pricing page still marks smart minutes and keyword analysis as unavailable, so check their status before relying on them.
- Recording Magic: A file tool cleans saved WAV, MP3 and FLAC recordings with adjustable noise reduction and pitch. The user manual also lists voice effects such as pitch shift, reverb and a robotic filter for streams or fun clips.
Pros
Linux support sets CrystalSound apart: its on-device noise filtering covers a platform few rival call filters support.
- Local processing: Audio is processed on your own computer instead of being uploaded for filtering. That suits confidential calls in legal, health or finance settings, although cloud recording on Premium does store files online.
- Linux support: CrystalSound offers builds for Ubuntu 20.04, Debian 10 and Fedora 37 alongside Windows and macOS. Linux users on calls have few comparable AI filters to choose from.
- Usable free plan: The Starter plan stays free after the trial, and the user manual describes 90 minutes of filtering a day on two devices. That is enough for a typical day of short meetings.
- Light hardware needs: The manual lists a 2 GHz Intel Core i3 or Apple M1, 4 GB of RAM and about 500 to 800 MB of storage. Older office laptops can therefore run it without a dedicated graphics card.
- Refund window: Paid plans carry a 30-day full refund if the app does not suit you. After that, access continues to the end of the billing period, so testing on real calls carries little financial risk.
Cons
A blank Premium figure on the official pricing page leaves CrystalSound’s cost unclear.
- Hidden Premium price: The pricing page lists Premium per user per year but shows no amount. Directories report figures between about $4.80 and $12 a month, so you only see the real price at checkout.
- Daily cap on the free plan: Starter limits filtering to 90 minutes a day, according to the user manual, although referrals add 60 minutes each. Anyone in back-to-back meetings will hit the cap by early afternoon.
- Small community: Independent reviews are scarce compared with larger rivals, and the AppSumo page shows ratings without written reviews. Troubleshooting help mostly comes from the official manual and blog.
- Features still in progress: Elite, with transcription and performance analysis, is marked as coming soon, and some Premium meeting tools are labelled unavailable. Buyers should judge the app on its noise filtering alone for now.
- Imperfect voice isolation: The developer admits My Voice Only can still let faint background voices through. Results also drop if you register your profile on a different microphone from the one you use on calls.
Who is Using CrystalSound?
CrystalSound is mainly used by people who talk on calls from noisy rooms and want cleaner audio without sending it to a server.
- Remote workers: Home workers use it to hide children, pets and traffic on Zoom and Teams calls. My Voice Only helps when a partner is also on a call in the same room.
- Support agents: Contact centre staff use it to block neighbouring agents’ voices on customer calls. The manual lists Amazon Connect among supported web apps, and Enterprise adds VDI support.
- Streamers and podcasters: Creators route the virtual microphone into OBS, Audacity or Loom for cleaner recordings. Recording Magic also tidies files that were captured before the filter was switched on.
- Students and educators: Learners and tutors use it for quieter online classes and group calls from shared housing. Teachers also clean recorded lectures before sharing them with a class.
Pricing
CrystalSound has a free Starter plan, and Premium reportedly costs about $96 a year (official pricing page, user manual and directories, checked October 2026).
| Plan | Price | What you get |
|---|---|---|
| Starter | $0 | Noise cancellation, 90 minutes a day on two devices (user manual) |
| Premium | Not shown, about $96 a year reported | Unlimited noise removal and cloud recording, seven-day free trial |
| Elite (coming soon) | $228 per user a year | Transcription and meeting analysis, 50% off for pre-signups |
| Enterprise | Contact sales | Offline recording, VDI and bulk discounts |
Directories quote Premium anywhere from $4.80 to $12 a month, and one lists a $39 lifetime deal that the official site does not mention.
Because the official page hides the Premium amount, confirm the final price at checkout rather than relying on the figures above.
What Makes CrystalSound Unique?
Two-way filtering that also mutes other people’s voices, combined with on-device processing, sets CrystalSound apart. Many filters only clean your own microphone, while CrystalSound also cleans what you hear from others on the call.
It also bundles tools that rivals sell separately. A screen recorder, a file cleaner for existing recordings and voice effects come in the same app, and native Linux builds widen its reach beyond the Windows and Mac focus of most competitors.
Compatibilities and Integrations
CrystalSound works with almost any desktop call or recording app, because it appears as a standard microphone and speaker in audio settings.
- Platforms: Windows 10 (version 1809) or later, macOS 10.15 Catalina or later, and Ubuntu, Debian or Fedora Linux.
- Call apps: Zoom, Google Meet, Microsoft Teams, Slack, Skype, Discord, LINE, Facebook Messenger and Amazon Connect.
- Recording tools: OBS, Loom, Audacity and QuickTime through the virtual microphone.
- File formats: Recording Magic accepts WAV, MP3 and FLAC files for clean-up.
- Enterprise: VDI support and offline recording on business plans.
CrystalSound Tutorials
Clean audio on your next call needs about ten minutes of one-off setup.
- Download CrystalSound for your operating system and sign in with Google or Microsoft.
- Select your real microphone and speaker inside CrystalSound.
- Register a My Voice Only profile in a quiet room, using the microphone you will use on calls.
- Choose the CrystalSound microphone and speaker in Zoom, Teams or your recording app.
- Switch on noise reduction and adjust the denoise slider during a test call.
- Start the seven-day Premium trial if you need unlimited minutes or cloud recording.
How We Rated It
CrystalSound scores 4.0 out of 5 overall, led by on-device privacy and a useful free plan, with support resources its weakest area.
| Criterion | Score | Why |
|---|---|---|
| Accuracy and Reliability | 4.0/5 | Strong voice isolation |
| Ease of Use | 4.2/5 | Virtual mic setup |
| Functionality and Features | 4.1/5 | Audio, recording, minutes |
| Performance and Speed | 3.9/5 | Light on hardware |
| Customization and Flexibility | 3.6/5 | Few audio controls |
| Data Privacy and Security | 4.4/5 | On-device processing |
| Support and Resources | 3.3/5 | Guides, small community |
| Cost-Efficiency | 4.2/5 | Free plan, low price |
| Integration Capabilities | 4.0/5 | Works with call apps |
| Overall Score | 4.0/5 | Average of the nine criteria |
Summary
CrystalSound suits remote workers, support teams and creators who want cleaner calls without sending audio to the cloud. Two-way filtering and My Voice Only handle both your own background and noisy colleagues on the other end. Its weakest points are the hidden Premium price and a 90-minute daily cap on the free plan. Several meeting analysis tools are also still unfinished. Register your voice profile on your usual microphone and test it in your main call app during the seven-day trial before paying.
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