THD Podcast

David Lindberg

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio, headphone and other technologies technologies and the people who bring the technology to market. Hosted by Dave Lindberg, CEO of dB Enterprises Hong Kong, and Simon Weston, CEO of ZUMI Systems Japan. Please LiKE, Share and Subscribe. Contact us if you would like to be considered for a guest!

  1. THD Podcast 127 - Auracast, BLE, and the Future of Bluetooth. How the New BT Works!

    27 JAN

    THD Podcast 127 - Auracast, BLE, and the Future of Bluetooth. How the New BT Works!

    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 127 of the THD Podcast, Jackson Keating, a freelance firmware developer and expert in Bluetooth architecture from Wiser Devices, joins the podcast. Jackson is here to explain the shift currently occurring in wireless connectivity: the move from Bluetooth Classic to Bluetooth LE (Low Energy) Audio. The development and deployment have been painfully slow, and the details on the protocol, even BT SIG people have never been able to explain to me, so in this episode, we explore the LC3 Codec, Auracast™ Broadcast Audio, the protocol, and other bits that everyone is asking and no one is answering. Join us as we discuss the technical hurdles, the rollout of 2026, and how Jackson is helping teams navigate this new ecosystem at Wiser Devices. Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #dsp #digitalsignalprocessing 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.wiserdevices.com linkedin.com/in/jacksonkeating/ www.totalharmonicdiscussion.com

    40 min
  2. THD Podcast 126 - MVoid Acoustics Explains the Utility of Dinaburg C2S Driver Technology in Automotive Audio

    23/12/2025

    THD Podcast 126 - MVoid Acoustics Explains the Utility of Dinaburg C2S Driver Technology in Automotive Audio

    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 126 of the THD Podcast, Alfred Svobodnik from MVoid Audio Technologies joins to tell us about the benefits to using the C2S technology from Dinaburg. The C2S (Concentric Coplanar Stabilizer) technology from Dinaburg helps automotive speaker systems by addressing specific challenges of the vehicle environment, primarily by producing high-quality, powerful sound from a compact, shallow speaker assembly. Key benefits for automotive applications include: Space Savings: Automotive interiors often have limited space for speakers. The C2S design is ultra-shallow and requires a minimal enclosure volume, allowing for installation in tight spaces without compromising on sound quality. Enhanced Bass and Clarity: The technology repurposes 100% of the back-wave energy from the active driver using a concentric passive radiator. This innovation eliminates the acoustic short circuit common in conventional designs, resulting in deeper bass, crystal-clear highs, and an extended frequency response. Reduced Distortion: By optimizing the relationship between the active and passive components, C2S technology drastically reduces harmonic distortion, delivering pure, clear, and immersive sound, a notable advantage in the often reflective and complex acoustic environment of a car cabin. Improved Off-Axis Performance: In a vehicle, listeners are rarely on-axis with the speakers. The C2S design provides superior off-axis response and uniform sound dispersion, ensuring a well-balanced sound field for all passengers. Energy Efficiency: By utilizing previously wasted energy, C2S speakers offer significant improvements in energy efficiency, delivering superior performance without requiring additional power consumption. Lightweight Design: The speakers themselves are notably lightweight compared to conventional high-performance drivers, which can contribute to overall vehicle weight reduction (e.g., a 6.5" C2S driver weighs just 0.297 kg). Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #dsp #digitalsignalprocessing 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 linkedin.com/company/mvoid-audio-technologies www.dinaburgtech.com linkedin.com/company/dinaburg-technology www.totalharmonicdiscussion.com

    39 min
  3. THD Podcast 125 - BD Sound In Car Voice Isolation Bubbles Built in AI Software to Enhance Voice Communication

    16/12/2025

    THD Podcast 125 - BD Sound In Car Voice Isolation Bubbles Built in AI Software to Enhance Voice Communication

    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 125 of the THD Podcast, Fabio Cagnetti joins to introduce BD Sound. BdSound is an Italian company based near Milan that specializes in advanced audio and speech processing technologies for various applications, including the automotive, videoconferencing, and smart device industries. BdSound develops innovative audio and speech processing solutions and provides comprehensive consultancy services to enhance human-to-human and human-to-machine communication. Their proprietary technologies include Acoustic Echo Cancellation (AEC), Noise Reduction (NR), and the innovative "Microphone Bubbles" feature, which uses a single microphone per seat to create a virtual bubble to capture only the intended passenger's voice in noisy environments like cars. BdSound technology is integrated into millions of devices across various sectors, including Automotive, Videoconferencing and some CE Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #dsp #digitalsignalprocessing 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.bdsound.com linkedin.com/company/bdsound-srl @bdSoundCompany www.totalharmonicdiscussion.com

    44 min
  4. THD Podcast 123 - Analog Devices Sigma Studio Graphical Development Tool for SigmaDSP Audio Processors

    25/11/2025

    THD Podcast 123 - Analog Devices Sigma Studio Graphical Development Tool for SigmaDSP Audio Processors

    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 123 of the THD Podcast, Dave Thibodeau and Miguel Chavez from Analog Devices join us to discuss their SIgmaDSP product and the Sigma Studio tool for developers. Analog Devices' SigmaDSP is a family of fully programmable, single-chip audio digital signal processors (DSPs) that are configured using the intuitive SigmaStudio graphical development tool. This combination allows engineers to design complex audio signal chains without the need for traditional assembly or C coding. SigmaDSP processors are designed for real-time audio applications in products like automotive and portable audio systems. Key features include: - Programmability: They are fully programmable and can be used for a wide range of audio processing tasks. - Integrated Components: Many models integrate high-performance audio analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), allowing for a complete audio system on a single chip. - Target Applications: They are well-suited for applications where cost and development time are critical, offering a balance of performance and ease of use. SigmaStudio is a powerful, free integrated development environment (IDE) that simplifies the process of designing and tuning audio systems. Its primary features are: - Graphical Interface: Users design audio signal flows by dragging and dropping algorithm blocks (e.g., filters, mixers, dynamics processors, delays) and wiring them together like a schematic. - No Coding Required: The software automatically generates the optimized, production-ready DSP code, making it accessible to engineers with little to no DSP programming experience. - Real-Time Tuning and Debugging: The tool links with evaluation boards and production designs via a USB connection, allowing for real-time control and tuning of parameters using graphical knobs and sliders. It also includes debugging tools such as frequency response visualization. - Algorithm Library: SigmaStudio includes an extensive library of pre-built and third-party algorithms, which can be configured for specific needs. Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #dsp #digitalsignalprocessing 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.analog.com linkedin.com/company/analog-devices @ADI_News www.totalharmonicdiscussion.com

    1h 7m
  5. THD Podcast 122 - Vibrozio Using Vibration Sensors and MEMS Mics with Advanced DSP to Listen Thru Barriers

    04/09/2025

    THD Podcast 122 - Vibrozio Using Vibration Sensors and MEMS Mics with Advanced DSP to Listen Thru Barriers

    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 122 of the THD Podcast, Alexander Goldin and Robert Schrager join to talk about their recently launched Vibrozio solution that focuses on listening through barriers such as walls, windows, etc. The solution has deep utility in automotive, medical, and several other key market segments. The podcast explains how the solution works and outlines some of the markets it can service. Alango Technologies provides embedded Digital Signal Processing (DSP) software for enhancing voice and audio quality in a wide range of products, including mobile phones, Bluetooth headsets, smart speakers, conferencing systems, and automotive hands-free systems. Founded in 2002, the company offers technologies for acoustic echo cancellation, noise reduction, hearing enhancement, music enhancement, and more. Their licensable software is designed to be easily integrated, delivering high-quality audio experiences with low computational load and power consumption. Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #dsp #digitalsignalprocessing 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.alango.com linkedin.com/company/alango-technologies @AlangoTech www.totalharmonicdiscussion.com

    36 min
  6. THD Podcast 121 - Airsound Spatial Audio Delivering Dolby Atmos from 2 speakers w Guy Fletcher fr Dire Straits

    29/07/2025

    THD Podcast 121 - Airsound Spatial Audio Delivering Dolby Atmos from 2 speakers w Guy Fletcher fr Dire Straits

    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 121 of the THD Podcast, Daniel Fletcher and Guy Fletcher (latter from Dire Straits fame) join to introduce and explain their groundbreaking spatial audio technology. Birthed at the intersection of speaker development and recording engineering experience and technology, Airsound Ltd. aims to deliver Studio-proven sound. They offer the technology as an embedded solution to produce a new generation of audio products, delivering effortless spatial audio. Airsound Spatial uses dipole sound steering to present any number of audio channels from a simplified electroacoustic architecture. Each speaker can contain as few as 3 physical audio channels to recreate height and width from any Spatial Audio sound source. It’s a game changer, reducing the cost of implementing spatial audio whilst delivering a better experience. Airsound promises a new relationship between streamed content and consumers – a World of pure sound without installation complexity, compatibility difficulties, or compromised experience. Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #SpatialAudio #Spatial #Immersive #DolbyAtmos #Dolby 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.airsound.com linkedin.com/company/airsound-technology www.totalharmonicdiscussion.com

    48 min
  7. THD Podcast 120 - Syntiant Acquires Knowles Consumer MEMS Mics to Complete their AI Interface Solution

    15/07/2025

    THD Podcast 120 - Syntiant Acquires Knowles Consumer MEMS Mics to Complete their AI Interface Solution

    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 120 of the THD Podcast, Steph Bailey joins to tell us about the convergence of technologies that is going on with Syntiant's recent acquisition of Knowles' MEMS microphone business. Steph discusses how their widely deployed deep learning models, high-performance neural processors, MEMS microphones, and vibration sensors can bring the value of Edge AI to any product. Founded in 2017 and based in Irvine, California, Syntiant Corp. is a leader in delivering end-to-end deep learning solutions for always-on applications by combining purpose-built silicon with an edge-optimized data platform and training pipeline. Syntiant’s advanced chip solutions merge deep learning with semiconductor design to produce ultra-low-power, high-performance, deep neural network processors for edge AI applications across a wide range of consumer and industrial use cases, from earbuds to automobiles. The company is backed by several of the world’s leading strategic and financial investors including Intel Capital, Microsoft’s M12, Applied Ventures, Robert Bosch Venture Capital, the Amazon Alexa Fund and Atlantic Bridge Capital. Check out the podcast on @YouTube @Spotify @amazonmusic @iHeartRadio @RumbleVideo @Apple @Google Thanks to Barry Vogel and the ALTI Audio & Loudspeaker Technologies International for their support as well! Thanks to AudioXpress for their support on this episode as well! #audioengineering #acoustics #audio #edgecomputing #MEMS #microphones 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.syntiant.com linkedin.com/company/syntiant-corp @Syntiantcorp www.totalharmonicdiscussion.com

    51 min

About

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio, headphone and other technologies technologies and the people who bring the technology to market. Hosted by Dave Lindberg, CEO of dB Enterprises Hong Kong, and Simon Weston, CEO of ZUMI Systems Japan. Please LiKE, Share and Subscribe. Contact us if you would like to be considered for a guest!