Innovation within the headphone house has been an intriguing factor to watch and expertise over the previous decade. R&D centered on wi-fi and driver applied sciences have propelled the non-public audio class into a really totally different place; each when it comes to gross sales, sound high quality, and mainstream acceptance. xMEMS Labs, makers of solid-state, all-silicon micro audio system has introduced its subsequent innovation in sound copy for TWS (True Wi-fi Stereo) earbuds.
Designated as CypressxMEMS claims this new solid-state MEMS speaker is designed to exchange legacy push-air sound copy with richer, extra detailed, bass-heavy, high-fidelity sound. Cypress represents the primary different to the moving-coil idea for high-volume client energetic noise canceling (ANC) earbud microspeakers.
From Mike Housholder, Vice President, Advertising and Enterprise Growth for xMEMS: “By shifting to a sound from ultrasound precept, the xMEMS Cypress micro speaker can now formally change conventional coil-and-magnet audio system in energetic noise canceling earbuds…Cypress maintains all the advantages of xMEMS’ present audio system whereas being 40x louder in low frequencies, reaching a key requirement for ANC earbuds.”
Cypress Audio Tech Fundamentals
Legacy coil audio system generate sound within the audible band, which is intrinsically inefficient. XMEMS claims that Cypress takes benefit of the traits distinctive to MEMS drivers —pace, precision, and uniformity—to supply high-resolution audio extra effectively.
As an air pulse generator, Cypress consists of two primary elements:
- A modulator to generate an amplitude-modulated ultrasonic wave (service) that follows the amplitude of the meant audio sign.
- A demodulator that synchronously demodulates the ultrasonic wave, transferring the acoustic vitality right down to the baseband, producing the meant audible sound.
The ensuing sound envelope of ultrasonic pulses is a precise acoustic copy of the supply sign. This implies throughout all frequencies, Cypress is meant to be extra trustworthy to the unique recording than present speaker applied sciences. With superior decision within the time area, Cypress is meant to have the power to extra precisely reproduce superior sound codecs, together with high-resolution and spatial audio.
From Jemm Liang, xMEMS CTO: “Cypress not solely revolutionizes how sound could be reproduced from an electrical sign, nevertheless it additionally redefines the way it must be reproduced...”
Cypress Design Traits
Here’s what xMEMS claims Cypress brings to the desk:
- Sooner mechanical response which helps improved element, readability, and separation
- Close to-zero part shift that gives correct, unaltered, sound copy
- Improved part-to-part part consistency for higher spatial imaging accuracy
- Inflexible silicon diaphragms eradicate speaker breakup for improved mid/treble readability
- Non-magnetic construction that helps lighter weight and decreased electromagnetic interference
- Improved high qualityreliability, and part-to-part uniformity from the solid-state semiconductor course of.
Miniature Dimension
Cypress is available in a (9mm-diagonal) 6.3 x 6.5 x 1.65mm package deal. Regardless of its very small dimension, this meeting is designed to carry an added advantage of being 40x louder in low frequencies in comparison with xMEMS’ prior era audio system, offering stronger, deeper bass that’s in keeping with the very best 10-12mm legacy coil audio system, together with sound strain ranges (SPL) better than 140 dB as little as 20Hz.
ANC Efficiency
xMEMS claims that Cypress brings new benefits over legacy coil-based drivers to additional enhance ANC purposes. Its quicker electrical-to-acoustic conversion can contribute to wider ANC bandwidth (i.e., an extension of ANC to cancel greater frequency noise sources, like a crying child).
The near-constant electrical-to-acoustic conversion time (group delay) is meant to cut back DSP filter complexity which, in flip, helps shorter DSP latency, rounding errors, and energy consumption when processing ANC.
Availability
Full-function Cypress prototype silicon is now sampling to pick out early product model prospects. Manufacturing-candidate samples of Cypress and the companion Alta controller/amplifier ASIC can be sampled in June 2024. Mass manufacturing is deliberate for late 2024. Precise merchandise might present up on retailer cabinets by 2025.
Tip: xMEMS will exhibit Cypress by appointment solely on January 9-12 at CES 2024 in Las Vegas, NV.
