earSmart™ eS515 Smart Sound Processor
The earSmart eS515 is the world’s first Smart Sound Processor, integrating award-winning earSmart Advanced Voice technology with a high-performance, low-power audio codec for best-in-class voice and multimedia experience. With a suite of new features around communications, speech recognition and entertainment, the earSmart eS515 allows consumers to be heard, be understood and be there.
The Science Behind the earSmart eS515 Smart Sound Processor

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Product Highlights
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Voice Features
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- Non-Stationary and Stationary Noise suppression (Close talk, Far talk)
- ASR Assist mode
- Audience Hi-Fi Voice, Voice Stretch and Acoustic Echo Cancellation
- Automatic Gain Control, Voice Equalization, Post Equalization and Multiband Compressor
- Narrowband (8kHz), Wideband (16kHz) and Super Wideband (24 kHz)signal processing
- Transmit De-reverb
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Audio Features
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- UI Tone Mixing, Audio Multiband Compressor (MBC), Parametric EQ and Stereo Widening
- Dynamic Range Compressor (DRC)
- Equalizer Engine and Virtual Bass Boost support (OpenSL ES1.1 compliant)
- Configurable Beep Generator
- Multimedia recording features
- Audio Zoom directional sound capture modes for camcorder application
- Enhanced Stereo Recording: Presets for optimized camcorder performance in multiple everyday, real-life environments
- Stereo 2-Mic Stationary Noise Suppression
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Key Device Features
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- Audience earSmart Voice Processing core
- 4 High performance DACs with104dB dynamic range
- 4.8 mW Stereo Playback at 48kHz
- 1.1 W Stereo Class-D Speaker Driver
- 30 mW Stereo Class-G Headphone Driver
- 80 mW Earpiece Driver
- 2 Line Output Drivers
- 2 High performance 92dB SNR ADCs with Mic PGAs
- 1 Auxiliary ADC for line input with PGA
- SLIMbus Interface
- Digital Audio Ports
- 3 Master/Slave PCM/I2S ports
- Supports 4 digital Mic inputs and 1 output
- Up to 192kHz sample rates
- I2C,UART, and SLIMbus Host Interfaces
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