THD Podcast

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

iduntechnologies.com/

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

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.

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market.

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market.

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market.

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 75, Kent Peterson and Jason Cochrane from Warkwyn join to present the Klippel laser scanning tool.  Warkwyn is an acoustic R&D company that helps our customers develop superior transducers and loudspeaker systems for the professional and consumer marketplaces. We operate the most sophisticated independent acoustic measurement lab in North America and offer Klippel analysis for transducers and systems developed in-house and elsewhere. We are comfortable working alongside your existing development team or as the sole developer. Either way, Warkwyn will help your products be more competitive and cost effective.

The Total Harmonic Discussion / the THD Podcast. A weekly discussion on audio and headphone technologies and the people who bring the technology to market.