Audience rolls out low-cost single mic speech processing chip for feature phones

For Mobile World Congress, Audience announced the earSmart eS110, an advanced voice processor designed to work with a single microphone on feature (i.e., low-end phones).  The custom DSP core enables “HiFi” voice, what the company describes as “a wideband HD voice listening experience for mobile users connected to 2G and 3G mobile Narrowband networks”; in other words, it does HD voice upconversion, which isn’t the same thing as a wideband codec.

Audience prides itself on using the science of biology to develop its audio processing algorithms to distinguish and process sound from both ends of a phone call.  The eS110 is designed to bring an improved audio experience to low-cost feature phones, which make up about two-thirds of the current worldwide cell phone shipments.

The eS110 boasts of: Stationary and non-stationary noise suppression – from both ends of a mobile call and in both handset and speakerphone mode;  HiFi Voice – a wideband HD voice listening experience for mobile users connected to 2G and 3G mobile Narrowband networks;  Acoustic Echo Cancellation – eliminates echoes and enables full-duplex conversations while in speakerphone mode; and Ease of Integration – the earSmart eS110 voice processor is offered in a compact 3.5mm x 3.5mm, BGA package that easily fits any handset design and allows device manufacturers to design once and use across multiple single microphone devices.

First silicon will sample to manufacturers in March and the eS110 is expected to appear in mobile devices by the end of the year.

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