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Welcome to the bhi blog. Explore our latest blog posts and learn about our latest product launches, read in-depth product guides and understand how our technology works.

How DSP Noise Cancelling Improves Marine Radio Communications

bhi’s DSP noise cancelling products improve marine radio communications by removing unwanted noise and interference, letting you hear the speech more clearly.  Instead of lowering all audio, our Digital Signal Processing (DSP) analyses incoming sound and identifies the speech characteristics.
parapro connected to two radios

Using More Than One Radio With Your bhi DSP Noise Cancelling Unit

Many radio enthusiasts operate more than one receiver or transceiver and would like to take advantage of using their bhi DSP noise cancelling unit across multiple radios. Fortunately, there are several bhi products that enable an effective way to connect two or more radios to a single bhi DSP product. 
desktop mkII and nes10-2 mk4 next to each other

Guide: Choosing The Right bhi DSP Noise Cancelling Speaker

bhi's amplified noise-cancelling speakers utilise advanced Digital Signal Processing (DSP) technology to identify speech signals and remove unwanted background noise and interference to greatly improve speech clarity.
bhi PCB module and bhi speaker next to each other

Noise-Cancelling PCB Modules vs Noise-Cancelling Speakers: A Complete Guide To Choosing Your Ideal Audio Solution

Are you struggling to hear clear speech through background noise? At bhi Ltd, we offer a range of noise cancelling products that reduce background noise and interference to make speech more intelligible.
headphones and nes10-2 speaker on a blue background

Is Noise Cancelling Bad For Your Ears?

Noise cancelling technology has transformed how we experience sound, reducing background noise, and enhancing audio clarity. However, there are many questions surrounding whether this technology is detrimental to your ears, particularly when it comes to noise-cancelling headphones.
Grid image of all four bhi in-line modules

Choosing The Right bhi DSP Noise Cancelling In-Line Unit: In-Line Module, Dual In-Line, Compact In-Line and ParaPro EQ20-DSP Comparison

At bhi, we offer four DSP noise cancelling in-line units that deliver professional-grade noise cancellation for radio communications. The In-Line Module, Dual In-Line, Compact In-Line and EQ20-DSP/EQ20B-DSP all feature advanced DSP noise cancelling technology that will remove unwanted background noise by up to 40dB and dramatically improve speech quality.
USA flag

New U.S. Import Rules: What This Means For Shipments From The UK

From 29th August 2025, a significant change to U.S. import regulations will be implemented. The United States will remove the $800 de minimis threshold for commercial shipments for all countries.
morse key and nes10-2 mk4 side by side

How bhi Noise Cancelling Products Improve CW Radio Communications

Morse code has been a major part of amateur radio communication for a very long time, serving as a practical tool for long-distance contact and a tradition that connects modern operators with the roots of the hobby.
bhi products on a blue amateur radio background

Top 5 bhi Ltd Products For Amateur Radio Enthusiasts

Amateur radio operators face constant challenges with background noise and interference that degrade signal clarity and communication quality.
Two coatsguards in a boat at sea

Case Study: Noise Cancelling Solutions In A National Coastwatch Orgnanisation Marine Radio

bhi approached a National Coastwatch Institution about improving their marine radio communications, specifically looking at improved sound quality to ensure clearer transmissions over the radio for weak signals.
Blue sound waves

Guide To Noise Cancelling And bhi DSP Solutions

DSP, or Digital Signal Processing, is the processing of signals by digital means and a digital signal consists of a stream of numbers in binary form, and the processing of the signal is done by performing numerical calculations.
bhi noise cancelling intercom in a hospital setting

Case Study: Noise Cancelling Intercoms for Brighton Breast Care Centre

Brighton Breast Care Centre has two Accuray/TomoTherapy radiotherapy machines for scanning patients. The machines are very noisy when operating, which causes communication issues between the patients and the nurses. This hinders the care nurses can provide for patients if they are distressed or in pain as the nurses cannot hear the patient properly. 
NEDSP1962-KBD installed in a speaker

Transforming Your Extension Speaker: A Comprehensive Guide to the bhi NEDSP1962-KBD Retrofit Module

The bhi NEDSP1962-KBD module is a pre-wired retrofit PCB module which transforms ordinary extension speakers into powerful amplified DSP noise-cancelling units, utilising our unique DSP noise cancelling technology.
ParaPro EQ20 from a front view

ParaPro EQ20 Series FAQ: Everything You Need to Know About These Audio Enhancers

Looking to transform your audio experience with unparalleled clarity and customisation? The ParaPro EQ20 series offers cutting-edge audio enhancers designed to amplify and refine sound for users of all needs, especially those with hearing loss. With advanced features like Parametric Equalisation, 20W audio output, and Bluetooth connectivity, these compact units allow you to fine-tune your listening environment—whether it’s boosting key frequencies or reducing unwanted noise.
Desktop speaker and NES10-2 side by side

Revolutionising Listening: Exploring bhi's Advanced DSP Noise Cancelling Speakers

In the dynamic world of audio technology, bhi has positioned itself as a pioneer with its innovative lineup of speakers designed to transform the listening experience. This blog post delves into two remarkable products - the bhi NES10-2MK4 amplified DSP noise eliminating speaker and the bhi DESKTOP MKII 10 Watt amplified DSP noise cancelling base station speaker.

ParaPro EQ20 from a front view

Revolutionising Audio Clarity: Exploring the bhi ParaPro EQ20-DSP Noise Cancelling Products

In the ever-evolving landscape of audio technology, BHI has carved a niche for itself with cutting-edge solutions designed to enhance the auditory experience. Among its impressive lineup, the ParaPro EQ20-DSP Noise Cancelling Products stand out as a testament to innovation, precision, and a commitment to addressing the needs of users, especially those with hearing loss.