Noise Blocker

Noise Blocker applies AI noise cancellation to microphone audio for calls, recordings, and streams. It is most compelling for Windows users who want live cleanup without adjusting filters; the personal license covers up to three computers, but audio latency and the limited free allowance deserve consideration.

Overview

Version 3 separates speech from sounds such as fans, keyboards, clicks, hiss, and room noise. The maker says it works without tuning and is designed for everyday laptops, a useful combination for people who want a simple way to reduce common background distractions. Noise Blocker is not a general audio-processing suite: it focuses on microphone input.

Processing adds about 80 milliseconds of latency, with the amount varying by system. That may be acceptable for meetings or recordings, but could be a drawback when immediate microphone response matters. Real-time cancellation, recording, and streaming support broaden its use beyond video calls.

Key features

• AI microphone cleanup: Noise Blocker targets unwanted sounds while separating them from the speaker’s voice. Its focus on everyday noise makes it relevant to calls from busy or noisy rooms.
• Compatible apps: The maker lists Zoom, Google Meet, Discord, Slack, Teams, and OBS. That spans meetings, team chat, and recording or streaming workflows, so users can consider it alongside familiar apps.
• Privacy and payments: Website analytics are cookieless and are not used to build individual visitor profiles, advertise, or track users across sites. License validation may process activation history, app version, activation dates, and a hashed or pseudonymised device identifier. Stripe handles card payments, and the maker says it does not see or store payment details.
• Support: Personal licenses include 12 months of priority support; questions can be sent to email support.

Pricing

The free version costs nothing and provides 30 minutes of noise blocking per week, with no email required. It is enough to try the basic workflow, but the weekly cap makes it unsuitable for regular use beyond a short allowance.

The Personal license costs $50, paid once. It is a one-time payment for one person on up to three PCs, with 12 months of updates and priority support, indefinite use of covered versions, and a 14-day money-back guarantee. Household family members may share the license. This suits an individual who wants ongoing use without a recurring payment, though updates and priority support are limited to the first 12 months.

Existing license holders can pay $30, paid once for another 12 months of updates and priority support using their existing key. That renewal is optional support and update coverage rather than a new license purchase.

The Business trial costs nothing for a billed 30-day trial, covering up to 20 employees or computers. A request must be reviewed and approved; the period begins when the first trial device connects. No card is required and there is no automatic charge.

Business licenses use graduated one-time pricing, excluding VAT: $70 each for 1–9 licenses, $60 each for 10–39, and $50 each for 40 or more. Per-employee licensing covers one person on up to two computers; per-computer licensing covers one shared computer for any number of users. The page supports up to 200 licenses, with a custom quote for larger rollouts. This model gives organizations a choice between assigning seats to people or shared machines, but smaller teams should compare the per-license cost with the personal option.

Platforms

Noise Blocker supports Windows 10 and Windows 11. Other operating systems are not currently supported, so it is not an option for Mac or Linux users. The roughly 80-millisecond processing delay also makes it less suitable for workflows sensitive to audio timing.

Who it's for

Noise Blocker fits Windows users who want to reduce microphone noise across common meeting, chat, recording, or streaming apps without configuring filters. Its personal license is especially practical for one person using several PCs or sharing within a household. It is a weaker fit for users who need another operating system, unrestricted free use, or minimal processing latency.

Pros and cons

Pros

• Broad everyday app compatibility: Zoom, Google Meet, Discord, Slack, Teams, and OBS cover common communication and recording workflows.
• Flexible personal coverage: One personal license covers up to three computers and may be shared with household family members.
• No recurring personal fee: The $50 as a one-time license includes indefinite use of covered versions, with a 14-day money-back guarantee.
• Low-friction trial options: The free version requires no email, and the business trial requires no card and carries no automatic charge.

Cons

• Windows-only: Users on macOS or Linux must choose another tool.
• Weekly free cap: Thirty minutes per week is too limited for routine use.
• Added latency: About 80 milliseconds of processing delay may interfere with timing-sensitive audio workflows.
• Updates and priority support are time-limited: Personal coverage lasts 12 months, after which another one-time payment is needed for a further year.

Alternatives

DeepFilterNet is a free, open-source option for readers who want software available on Linux, macOS, and Windows rather than a Windows-only paid license.

Kleervox is worth considering for Linux or web users, or for anyone who values a daily free allowance and acoustic echo cancellation alongside neural noise cancellation.

DeskBroadcast is a macOS alternative, with a free version and a $79, paid once Pro plan for three Macs.

Noise Gator is a free, standalone, MIT-licensed option for Windows and macOS.

NoiseTorch-ng is a free Linux option for PulseAudio or PipeWire users.

NoNoise Mac is a free, open-source, MIT-licensed choice for macOS users.

NVIDIA ShadowPlay is a free Windows option for users with a supported GPU and GeForce driver 551.52 or later.

RNNoise is a free Linux option under the BSD-3-Clause license.

Browse the AI Noise Cancellation Software category for more options.

Verdict

Choose Noise Blocker if you use Windows, want straightforward real-time microphone cleanup across common apps, and value a one-time personal license for up to three PCs. Look elsewhere if you need macOS or Linux support, more than 30 free minutes a week, or lower audio latency.