Combining a low power voice trigger, multi-channel beamforming and accessory detection to produce breakthrough improvement in performance
LONDON — (BUSINESS WIRE) — September 17, 2014 — Dialog Semiconductor plc (FWB: DLG), a provider of highly integrated power management, AC/DC, solid-state lighting and Bluetooth Smart wireless technology, today announced the availability of two new audio DSP CODECs - DA7322 and DA7323 - targeting applications with up to four analogue or digital microphones respectively.
Featuring the highest levels of audio digital signal processor (DSP) functionality with a minimum power consumption requirement, these products are specifically developed for voice-centric applications found in the latest generation of tablets, wearables, webcam accessories and in-vehicle entertainment.
The new audio CODECs incorporate an integrated 24-bit DSP with an advanced voice engine package that provides an improvement of over 35dB signal-to-noise ratio (SNR) through the use of multi-channel beamforming, noise suppression and acoustic echo cancellation features. The result is a significant enhancement in speech performance with greatly improved sound quality for VoIP and voice recognition applications, which is particularly important for end users in a noisy environment.
"There is an increasing need to improve the audio quality of voice calls," said Udo Kratz, Senior Vice President and General Manager, Business Group Mobile Systems at Dialog. "Independent of the ambient noise conditions the consumer is experiencing, both audio CODECs deliver a superior audio experience by significantly reducing unwanted noise while maintaining voice quality during VOIP calls on applications such as SkypeTM or LyncTM."
Targeting wearables, a low power voice trigger is available on the DA7322 and DA7323 where over a dozen keywords can be supported with over 95% accuracy without false triggering. This capability is demonstrated by the TrulyHandsfree(TM) always-on voice activation and recognition software provided by Sensory, which includes trigger to search, user-defined triggers, speaker verification and identification and multiple language support.
Beamforming technology built into the DA7322 and DA7323 voice engine package has been designed to offer maximum flexibility in terms of microphone placements in order to support both endfire and multi-MIC configurations. The beamforming algorithm also has the ability to suppress a variety of stationary and non-stationary noise sources.
The embedded DSP engine includes a suite of audio enhancement SmartEffects ranging from multi-band equalization to stereo widening. It also contains a psychoacoustic bass boost that can be enabled to improve perceived low frequency response for playback on low cost speakers, while dynamic range control and volume levelling offers more perceived loudness and consistent audio levels.
The advanced accessory detection integrated on the CODECs supports 3- or 4-pole jack detection. The device can, therefore, automatically detect the type of headset being used, without the need for any external adapters. The DA7322 can support four analogue microphones. The DA7323, by contrast, offers support for three analogue or two pairs of stereo digital microphones.
The Dialog DA7322 and DA7323 each come in a 66 bump WL-CSP package. These devices are currently available.
SkypeTM is a registered trademark of Skype.
LyncTM is a registered trademark of Microsoft.
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About Dialog Semiconductor
Dialog Semiconductor creates highly integrated, mixed-signal integrated circuits (ICs), optimised for personal portable, short-range wireless connectivity, LED solid state lighting and automotive applications. The company provides flexible and dynamic support, world-class innovation and the assurance of dealing with an established business partner.
With its focus and expertise in energy-efficient system power management and a technology portfolio that also includes audio, short-range wireless, AC/DC power conversion and multi-touch, Dialog brings decades of experience to the rapid development of ICs for personal portable and digital consumer applications, including smartphones, tablets, Ultrabooks(TM) and emerging wearable type devices. Dialog's power management ICs increase the performance of portable devices by extending battery lifetime, enabling faster charging and enhancing the consumer's experience. With world-class manufacturing partners, Dialog operates a fabless business model.
Dialog Semiconductor plc is headquartered in London with a global sales, R&D and marketing organisation. In 2013, it had approximately $910 million in revenue and was one of the fastest growing European public semiconductor companies. It currently has approximately 1,100 employees worldwide. The company is listed on the Frankfurt (FWB: DLG) stock exchange (Regulated Market, Prime Standard, ISIN GB0059822006) and is a member of the German TecDax index. It also has convertible bonds listed on the Euro MTF Market on the Luxemburg Stock Exchange (ISIN XS0757015606).
|Company:||Dialog Semiconductor Plc.|
|Tower Bridge House, St. Katharine's Way|
|E1W 1AA London|
|Phone:||+49 7021 805-412|
|Fax:||+49 7021 805-200|
|Listed:||Regulierter Markt in Frankfurt (Prime Standard); Freiverkehr in Berlin, Düsseldorf, Hamburg, München, Stuttgart|