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Qualcomm announces new audio platforms, including smart speakers and amplifiers



Qualcomm has announced all its latest news about the audio world, from SoC for smart speaker up to a new amplifier technology that should lead to improvements over traditional Class D.

The audio world is experiencing a strong innovation in recent years, thanks to the advent of solutions that modify the known paradigms and bring more and more wireless in this context. Fully inserted in this context, Qualcomm announced many new features, the smart speaker to wireless headphones through a new amplification technology.

It’s called the new Qualcomm Smart Audio of the Californian platform for so-called smart speakers , or those speakers connected on the Net that offer features “smart” Additional speakers than the canonical, well represented by Apple HomePod . Qualcomm offers SoC Qualcomm APQ8009 and APQ8017 . Among the salient features we include support for multiple microphones with echo cancellation and noise suppression, voice activation and beamforming technologies. Do not miss the high-resolution music support (up to 32 bits and 192 kHz) and the latest technologies for connectivity, including WiFi 802.11 b / g / n / ac MIMO 1×1 and 2×2, and Bluetooth 4.2 LE with support for codecs aptX and aptX HD. Is there support for Linux and Android Things .

The company also announced further changes to the wireless audio as new Bluetooth chip to integrate into speakers and headphones . The chip CSRA68100 not only integrates Bluetooth support, but also provides a 32-bit processor programmable by companies to develop their products with greater freedom while offering four times the computing power in the DSP. QCC3XXX is instead a new family of programmable SoC for entry-level segment specifically designed for portable speakers and headphones. Among the prominent features are support for the codec aptX and noise cancellation technology CVC Qualcomm.

Qualcomm also introduced new SoC WHS9420 and WHS9410 intended for audio devices connected via USB-C , such as headphones equipped with cable and designed to be used on smartphones. The WHS9420 chip integrates support for the active noise cancellation and high-resolution audio (24 bit, 192 kHz), while the WHS9410 chip is an entry-level solution whose content cost should allow to develop solutions partner by the low price final.

The DDFA technology amplification goes instead to fit into a broader context, compared to just “smart” devices: Qualcomm states that it is an improvement compared to the traditional class D amplification because it should be able to bring “the audio quality of traditional linear amplifiers “even in a fully digital environment. DDFA exploits fact architecture digital PWM totally closed circuit which should compensate for the nonlinearities present in the supply and output stages present in class D amplifiers

The SoC CSRA6620 will be the first to integrate the DDFA technology and support eight input channels and two output channels; It is equipped with a microcontroller and a configurable audio processor and is large 9 x 9 mm. The latter detail is relevant to the possibility of also being used on devices with small dimensions, as far as the uses suggested by Qualcomm are the soundbar, wireless speakers and amplifiers (for both speakers for headphones).


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