THDPodcast

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 103, Jackie Green, the Technical Advisor for the UltraWide Band Alliance joins to explain how the UWB wireless technology works and its advantages for use in audio products. UWB Alliance is a global organization collectively establishing UWB technology as an open-standards, interoperable industry with a global ecosystem. Since 2019, UWB has been expanding into a mainstream consumer technology for smartphones, wearables, automotive, and industry, forecasted to drive sales volumes of over one billion devices annually by 2025. Building upon the standardization work performed by our staff and members within the IEEE on the 802.15.4z, we are focused on providing a favorable regulatory and spectrum management landscape to maximize UWB growth. This includes securing new advantageous rulesets in the upcoming reviews in the USA and Europe to expand the use cases for UWB technology. We are also heavily involved in optimizing spectrum sharing while minimizing interference. We evangelize coexistence for the expanding Wireless Multiverse and work with members and stakeholders to provide thought leadership on strategies to “make it all work together”. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.uwballiance.org linkedin.com/in/jackie-green-a5226410 @UWBAlliance www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 102, Clement Lambert of Kartesian Acoustic joins us to talk about improving the dynamic capacity of drivers by focusing on the details like the delicacy of spider and surround design and how it impacts acoustic performance. Dedicated to audio excellence, Kartesian contributes to continually improving the sound quality of audio products. For over a decade, they have developed innovative technology that can be integrated into any customer demand. Kartesian products can be adapted to your specific technical requirements and brand spirit. Located in the northeast of France, Kartesian are electro-acoustic experts, dedicated to advanced loudspeakers and audio technology. Our customers are international high-end audio, Hi-Fi, multimedia, and professional brands. They only work with suppliers oriented to innovation, able to follow our demanding quality process. They have selected the best suppliers for each loudspeaker component (magnet, frame, voice coil, ...) all over the world. Full process, from engineering to production is located in France. Every unit produced has a unique quality control number linked with our archive and stock to fully ensure the required performances for each loudspeaker. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.kartesian-acoustic.com instagram.com/kartesianloudspeakers youtube.com/watch?v=Fkb600urdKw www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 99, Dr Sean Olive from Harman International joins to explain the background and the rationale behind the Harman Headphone Target Curve. Some fascinating discussions on the evolution and some of the test procedures using scientific controls to produce a statistically significant study. Ultimately, it produces a line of fit between the listening experience and the frequency response to give headphone developers a target curve that satisfies most users. Notes from the question at 41:45 from Sean Olive: "I thought a bit more about the question Simon asked whether the target curve should be different for IE vs OE/AE types and wanted to clarify in case I misunderstood the question. He (Simon) seemed to think they should be different but perhaps he was referring to differences between targets for Type 3,3 versus Type 4.3 -- not headphone types? The baseline targets for IE and OE/AE were the same for Type 3.3 before adjustments to bass and treble were made. The baseline was determined by measuring a flat in-room speaker system. We found the IE target had about 4 dB more bass than the AE/OE target and only slightly different in treble. The same baseline for IE/ AE/OE is determined by measuring the speakers in the same room with Type 4.3 HATS. But after adjustments, I believe the IE/OE/AE will be closer than the Type 3,3 particularly in the bass b/c of the larger volume and acoustic impedance of the Type 4.3 vs 3.3. Will the headphone targets for Type 4.3 versus 3,3 be different? Absolutely, because the response and acoustic impedances are different. The main differences will be below 200 Hz and above 3-4 kHz. Hopefully, that clarifies my response to this question, if I understood it correctly." Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.harman.com linkedin.com/in/seanolive @seanolive www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 101, Konstantin Davy and Andrea Greco from USound join us to update us on the journey to bring MEMS speakers to the world. They have a new MEMS speaker called CONAMARA plus an ASIC called Tarvos which is a purpose-built audio amplifier to drive their speakers. In addition, they have partnered with Luxshare and OBO Pro to combine dynamic drivers with their MEMS speakers to create 2-way speaker modules that deliver full-range sound. USound is a fast-growing company that enables customers to bring new revolutionary audio products to the market. They provide innovative audio system solutions based on highly scalable MEMS technology. Their revolutionary products include advanced MEMS speakers, audio modules and amplifiers. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.usound.com linkedin.com/company/usound-gmbh @USoundTech www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 100, Nikolaj Hviid, CEO of Bragi, joins to discuss the market in headphones and the challenges to differentiate plus the forward-looking trends. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.bragi.com linkedin.com/in/nikolaj-hviid-046227/ @hellobragi www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 85, Tim Brault from dbx-tv joins to tell us about their history and expertise in audio signal process. DBX-TV's solutions maximize audio quality from a television or other existing speakers, using the audio DSP already inside, so you can deliver a superior audio experience at a minimal cost. An exciting technology with universal benefits across all audio product development projects. dbx, BTSC, and THAT Corporation dbx-tv’s roots trace back to the early1980s at dbx, Inc., then a wellspring for a wide range of innovative, award-winning audio designs and products. Some of dbx, Inc.’s creations, including dbx compressors (as exemplified by the famous dbx 160 and its variants), are prized and sought-after to this day. dbx compressor/limiters are used throughout recording studios and in live performances. One of dbx, Inc.’s many noteworthy inventions was its Emmy®-award-winning dbx-tv noise-reduction system designed to be an integral part of the BTSC (Broadcast Television Standard Committee) transmission system. BTSC became the standard for analog TV-audio broadcasts in North America in 1984, with many other countries adopting BTSC variations shortly thereafter. This single invention allowed hundreds of millions of consumers to experience TV in stereo with high fidelity and no loss of coverage in fringe areas. In 1989, dbx, Inc. was divided into several parts, three of which remain today. The first part of dbx, Inc. to spin off was THAT Corporation. Three engineers from dbx, Inc. formed THAT to design and sell circuit-board-level implementations of dbx Inc.’s technology as well as sophisticated analog ICs to perform audio functions. THAT’s first products included circuit boards to implement the dbx-tv noise reduction system for professional broadcast equipment makers, and voltage-controlled amplifier (VCA) and rms-level detector ICs for pro audio equipment makers. Twenty years later, those same three engineers remain the principal owners and managers of THAT today. Shortly after THAT spun off, the professional products division of dbx, Inc. was sold to AKG, which was subsequently purchased by Harman International. Along with brands like AKG, JBL, Soundcraft, and Studer, dbx Professional Audio Products is a prominent part of Harman’s professional audio business. Finally, in 1994, the dbx-tv licensing program was purchased by THAT Corporation, reuniting some of the original engineers involved in its development with the business that came from this technology. Since then, THAT has greatly expanded the scope of dbx-tv, enhancing its value with new digital variations of legacy reception. Most recently, THAT has introduced a new technology suite (dbx-tv Total Sonics and Total Volume) to address common audio problems with all modern broadcast reception. Full Episode Coming Monday, June 12th on YouTube Spotify Rumble Amazon Music iHeartRadio Apple Google Simon Weston dB Enterprises THAT Corporation ALTI Audio & Loudspeaker Technologies International #audioengineering #acoustics #dsp #technology #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.dbx-tv.com linkedin.com/company/dbx-tv @dbxtv www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 84, we have a replay of a recent Audio Product Development Alliance Webinar on BlueTooth Headphone Production Testing. Today, we are honored to have Simon Weston from Zumi Systems presenting on the intricacies of BT headphone production testing. As we all know, Bluetooth headphones have become increasingly popular in recent years, and with this surge in demand comes a greater need for reliable and efficient testing methods. Simon Weston, with his extensive knowledge and experience in audio product development, is here to guide us through the quirks of BT headphone production testing and share with us some of the best practices and industry insights. So without further ado, let's welcome Simon Weston and learn more about the challenges and solutions for BT headphone production testing. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 82, Rémi Guastavino the Director of Product Management at GRAS-Sound & Vibration joins to tell us about the use case and benefits of the new EQ 40PM. The GRAS EQ 40PM is a robust, cost-effective microphone designed for use in production line testing of loudspeakers and acoustic transducers. It has a wide frequency range, from 20 Hz to 20 kHz, and a dynamic range from 30 dB (A) to 120 dB. EQset incorporation in a microphone removes all of the traditional hassle associated with installing, setting up, and replacing microphones in a production line setting. EQset microphones all have flat response curves and fixed sensitivity. Sensitivity variation between individual microphones varies less than 0.2 dB from nominal sensitivity. The flat frequency response is less than 0.5 dB up to 10 kHz, another huge improvement over traditional production line microphones ±3 dB across the full frequency range. This provides a number of immediate benefits. Cost efficiency—low microphone entry cost, no special hardware needed, and fully backward compatible with CCP setups. Ease of use—a uniformly flat frequency response fixed sensitivity (or gain) for each EQset microphone makes EQ 40PM microphones plug and play in any 48 V phantom power or CCP-based setup. Reduced risk—the extremely narrow pressure response spread (±0.5 dB) greatly reduces the risk of false passes and false failures, which greatly reduces the risk of bad units reaching the customer and the risk of good units being scrapped or recycled. High environmental stability—the unique design of the EQ 40PM provides this range of microphones with unmatched environmental stability. Deviation on a typical production line is less than ±0.3 dB, so there is no need for corrections due to temperature or humidity. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.grasacoustics.com/products/product/854-eq40pm-eqset @grasacoustics www.totalharmonicdiscussion.com #testandmeasurement #measurementmicrophones #equalizedmicrophone

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 81, Sonic Emotion's CTO and CEO join to explain their MEMs speaker technology. Conventional speakers require a balance between mechanical, acoustical, and electrical resonances. As a speaker shrinks in size, keeping the resonance balanced is a complex challenge and the quality of sound is compromised. We have developed a unique technology that, instead of attempting to solve the problem, actually turns it on its head. Our unique technology generates ultrasound from multiple speakers, each as wide as a strand of hair, and then transforms the ultrasound to sound using a patented acoustic-mechanical frequency transformer. The ultrasound speakers and frequency transformers are realized as solid-state MEMS devices. The MEMS device is manufactured using semiconductor technologies leveraging the semiconductor ecosystem for scalability and price trajectory. The outcome is clear: maximum sound quality in minimal size. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.sonicedge.io @Sagi Chen @Moti Margalit www.totalharmonicdiscussion.com #THDPodcast

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 92, Steve Temme of Listen Inc. joins us for part 2 of the discussion. In this segment, Steve explains their algorithms for end-of-line production testing for detecting if you've got some particles or even a screwdriver left in your speaker from manufacturing. Listen is a world leader in audio and electroacoustic testing and measurement. Founded in 1995, when its flagship product, SoundCheck® was launched, the company has pioneered electroacoustic measurement techniques for 20 years and sets the standard in the marketplace with powerful and innovative test methods and algorithms, fast and flexible testing, and excellent service and customer support. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.listeninc.com www.youtube.com/@UCbgsX_w7Qiq1rL_m11O5ezA linkedin.com/company/listen-inc._2 www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 86, we learn about The Lyceum which is a collaboration tool to manage acoustic data. Data is unique and it quickly gets lost in the shuffle moving towards the next experiment in your audio product development pathway. The advanced data ingestor of the Lyceum allows users to pick and choose what parts of their data get uploaded, and define how it can be searched for in the future! A management tool with audio data in mind that covers data sources from all standard development tools. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.thelyceum.io linkedin.com/company/lyceumthe @thelyceum_ www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 96, Stefan Liebich of Elevear joins to discuss their audio algorithms for hearables that cover occlusion, idle noise, and immersive 3D audio. Developed over many years and now being commercialized with key silicon partners. OCCLEAR® TECHNOLOGY NATURAL OWN VOICE THROUGH OCCLUSION CANCELLATION Existing headphones isolate the user from the environment, making their voice sound boomy and unnatural to them. This phenomenon is due to the occlusion effect, which attenuates air-conducted sound while amplifying body-conducted sound. A headphone user who is unhappy with the unnatural sound of their own voice. A headphone user who enjoys a natural own-voice sound thanks to the Occlear® technology. Our Occlear® technology eliminates the occlusion effect, allowing hearables users to perceive their voice and environment with natural clarity. Occlear® requires no specialized hardware and can be integrated seamlessly into ANC-ready hearables via a simple firmware update. IDLE NOISE REDUCTION TECHNOLOGY WORLD-CLASS HISS-FREE TRANSPARENCY FOR YOUR HEARABLE Hearables users often complain about microphone noise or hiss when using transparency mode. It stems from the low-cost, miniature microphones used in today’s hearables. To mitigate this noise, manufacturers often limit the bandwidth of their transparency mode, compromising the clarity of the sound. Our patented Idle Noise Reduction (INR) technology reduces the noise floor of hearable microphones by 10–15 dB, matching the performance of high-end studio microphones. The INR removes the hiss, allowing hearables manufacturers to achieve world-class transparency with low-cost components. IMMERSIVE 3D AUDIO TECHNOLOGY INSTANT, UNALTERED 3D AUDIO WITHOUT LATENCY OR DISTORTION Existing spatial audio solutions often struggle with head movement, resulting in a lag that disrupts the immersive experience. They also tend to compromise sound quality by adding reverb. With imperceptible motion-to-sound latency, our algorithms ensure that the audio keeps pace with your every move. This seamless integration means you experience the world of sound most naturally as you navigate through it. Experience unaltered, high-fidelity audio that runs directly on your hearable device—no need for complex stack adjustments, including Bluetooth and app dependencies. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.elevear-tech.com linkedin.com/company/elevear www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 95, HBK - Hottinger Brüel & Kjær's Vince Rey joins to discuss their new 5128 head & torso simulator (HATS) plus their 4620 couplers. HBK was formed in 2019 by merging two market-leading organizations: HBM and Brüel & Kjær. Both companies have over 80 years of experience providing innovative and high-quality solutions in precision test and measurement technology for various industries. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.hbkworld.com linkedin.com/company/hbkworld-test-and-measurement/ www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 94, Marie-Eve Desrochers joins to introduce their technology that targets to bring efficiencies and speed to the edge in MEMS microphones. Echosonic aims to develop next-generation MEMS smart microphones using reservoir computing technology to enable on-sensor audio signal processing using machine learning for both inference and software upgrading. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.echosonic.ca linkedin.com/company/echosonicai www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 93, Dan Knighten, Product Line General Manager at Audio Precision joins to talk about their new low-cost APx516B Audio Analyzer. With the proliferation of digital audio interfaces, there’s an increasing need for a straightforward, budget-friendly analyzer for both digital and analog audio testing. The APx516B Series Audio Analyzer offers a cost-effective modular solution for electronic audio customers, upholding the Audio Precision standard of performance and service. Designed for extended R&D teams and production test applications, the APx516B delivers comprehensive testing for analog and digital audio in a versatile, affordable package. Learn how the hashtag#APx516B can integrate into your testing solution. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support of this episode dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.ap.com linkedin.com/company/audio-precision @audioprecision www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 98, Aernout Arends the CEO of Absolute Audio Labs in the Netherlands joins to discuss their algorithm bridging the gaps from hearings to the OTC hearing assist devices. Absolute Audio Labs develops cutting-edge technology for Hearing and Voice applications. Their B2B Audio software suites - PYOUR Audio Hearing, Voice, and Safesound - cover a wide range of applications, mainly focusing on speech intelligibility, personalization, music perception, and hearing protection for TWS earbuds and Hearing Aids. We are also joined by Adrie van Meijeren of Renasas to discuss the collaboration with semiconductor manufacturer Renesas. Renesas has selected AAL’s PYOUR Audio new 3.0 hearing suite as the solution for hearing enhancement supported on a new family of connectivity products. The collaboration intends to deliver excellent assistive hearing performance to a broad range of products from (OTC) hearing aids, TWS earbuds to unified communication headsets where it can enhance hearing in noisy environments. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.absoluteaudiolabs.com linkedin.com/company/absolute-audio-labs @AAL_Audio www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 97, Vince Rey of Hottinger Brüel & Kjær (HBK) joins again from California to discuss the Buzz, Squeak, and Rattle or ‘BSR’ test audio quality metric. It was developed by Dr. Wookeun Song (HBK). This BSR metric relies on deconvolution and time-varying loudness sound quality, considering frequency and time masking on the human ear. It can be summarised as 'Does the measurement curve match the perception of the sound quality and how can we correlate the two?' Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.hbkworld.com linkedin.com/company/hbkworld-test-and-measurement www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 91, Steve Temme of Listen Inc. joins us for part 1 of a two part discussion. In this segment, Steve explain's their algorithms for end-of-line production testing for Rub & Buzz in speaker manufacturing. Listen is a world leader in audio and electroacoustic test and measurement. Founded in 1995, when its flagship product, SoundCheck® was launched, the company has pioneered electroacoustic measurement techniques for 20 years and sets the standard in the marketplace with powerful and innovative test methods and algorithms, fast and flexible testing, and excellent service and customer support. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.listeninc.com https://www.youtube.com/channel/UCbgsX_w7Qiq1rL_m11O5ezA/playlists linkedin.com/company/listen-inc._2 www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 90, Matt Gonzalez and Kris Jackson from Echo Test + Measurement take us through the history of Echo and the ongoing evolution of building production line audio test equipment that keeps up with the pace of manufacturing. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.echotm.com linkedin.com/company/echo-test-and-measurement @EchoMeasurement www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 89, Dinaburg Technology joins the THD Podcast this week to discuss their C2S speaker technology that combines an active driver with a passive ring radiator. This solution has a lot of benefits with in-wall and automotive applications and we have a panel of experts including Roger Shively of Shively Acoustics International and Mike Klasco of Menlo Scientific Ltd. to detail the explanation in this week's episode. Dinaburg Technology, based in Dallas, TX, was issued its first U.S. patent for an enhanced electro-dynamic loudspeaker design. Mikhail Dinaburg, a noted physicist and the patent inventor, uncovered some missing elements in Rice-Kellogg’s work and set out to prove it. Dinaburg’s patent discloses techniques for higher-performance sound reproduction based upon Boyle’s Law. The design techniques enable lower distortion, extended frequency range, higher efficiency, and improved speech intelligibility. The invention has wide applications and scales from a 6 mm earphone driver to near-field studio monitors, to concert subwoofers. Check out the podcast on YouTube Spotify Amazon Music iHeartRadio Rumble BitChute Limited Apple Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc dinaburgtech.com linkedin.com/company/dinaburg-technology www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 88, Niels Burema of Hypex Electronics in the Netherlands joins to explain the who, what, where, when, and why of their Class D power amplifiers, power supplies, DSP solutions, and plate amplifiers that they target into the HiFi, High End, and Pro Audio industries. A very good episode that is worth a watch to learn about the high end amplifier market Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Simon Weston Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.hypex.nl linkedin.com/company/hypex-electronics-bv/ @hypexbv www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 87, Trulli Audio joins the THD Podcast this Monday to explain their Perimeter-Driver Technology. It's called Thin Driver™ and it is a concept a lot of us have imagined but these guys are making it happen. They've flipped the lid on motor design and I encourage you to watch/listen. A great conversation with Jordan Neuhauser and Andrew Briggs to learn about how the technology works and how it can make your products better. Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! dB Enterprises #audioengineering #acoustics #audio Simon Weston Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc trulliaudio.com linkedin.com/company/trulli-audio @TrulliAudio www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 83, Mark Melynkowycz, the lead product designer, from IDUN Technologies joins to talk about their EEG technology for earbuds and what it can bring to the market of hearables. IDUN Technologies is a neurotech Start Up and their vision is to create a more connected and empathetic world using in-ear EEGs. The Guardian Neuro-Intelligence Platform is a Brain-computer Interface that provides real-time measurements of neuro markers, enabling partners to improve their products and services using innovative technology. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc iduntechnologies.com/ linkedin.com/company/iduntechnologies @IDUNTech www.totalharmonicdiscussion.com

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 80, Dr. Marcos Simon, CTO and Co-Founder of AudioScenic joins the podcast to explain their groundbreaking technology. Audoscenic delivers immersive 3D audio through cutting-edge technology & innovation. They have adapted audio to people to create the perfect listening experience. Our proprietary loudspeaker array technology, head-tracking, and AI capabilities create a personalized, user-adaptive, and best-in-class immersive sound. Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.audioscenic.com linkedin.com/company/audioscenic-limited @Audioscenic www.totalharmonicdiscussion.com #THDPodcast #immersiveaudio #3dsound

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market. In episode 79, Simon Weston switches to the presenter to detail how the ZUMI HPA86 Test and Measurement System works. We compare frequency response measurements from SONY, SENNHEISER, BOWERS & WILKINS, and BOSE headphones. The procedure of demonstrating the test shows the ease of use of the ZUMI HPA86 Please like, subscribe, share, and comment with your feedback! Enjoy the podcast! Support the podcast on our Patreon page: www.patreon.com/THDPodcast www.db-ent.com linkedin.com/in/DavidJLindberg @dlindberg11 discord.gg/HF6NF3fc www.zumisystems.com linkedin.com/in/simon-weston-1b849130 www.totalharmonicdiscussion.com #THDPodcast #TestandMeasurement #qualitycontrol