BAT – Audio IP Platform
Our fully flexible and application-optimized solution to enable high-fidelity ADC / DAC audio IP and voice-control of IoT devices at low power cost.
BAT is our audio IP platform for serving a wide range of fashionable applications such as Smart Speakers, Smart Headsets, ANC Earbuds, and In-Vehicle Infotainment. It embeds ADC / DAC audio IP digital filters, voice detection, and keyword spotting solutions based on a broad range of process node expertise.
BAT enables a seamless configuration and assembly of your high fidelity and low power audio device ensuring faster Time-To-Market with a stronger market position.
BAT - At the crossroads of analog performances and digital adaptability
ANALOG making the interface between analog and digital worlds very high fidelity
- MEMS microphone and electret support
- High electrical performances for accurate data recording and payback
- Cap-less architecture to limit BoM impact
DIGITAL enabling powerful audio signal processing with soft flexibility
- Digital microphone support
- Hardware filters for optimum energy efficiency
- Various features to adapt to application constraints
- High configurability
Audio IP platform portfolio
The emergence of powerful voice recognition algorithms drives the growth of connected devices controlled by voice, where voice recognition and ultra-low power technologies are key to delivering the optimal user experience. The complete set of Foundation, Feature and Fabric IPs of Dolphin Design will allow us to demonstrate fast and safely a human-machine interaction system relying on a C-Sky microcontroller-based SoC platform.
Our experience of using Dolphin Design’s ultra-dense audio DAC has been very positive. A pure logic DAC is extremely compact at 28nm and enables to drastically reduce the industrial test duration, as structural testing such as SCAN can efficiently be applied, which is pivotal for our SoC competitiveness on the aggressive market of Set-Top Boxes.
Meeting the right balance between silicon costs, audio quality and low power consumption is a challenging task. The YANZI-A-hexADC-VD.01, a feature-rich audio ADC from Dolphin Design, packs all these advantages into our smart speaker offering.
- TWS earbuds, headphones and headsets
- Smart speakers, home appliance
- Wearables, hearables, Voice first devices
- BLE codecs
- LP and GP MCU
- 8μA in Voice Detection mode
- 100% voice detected
- 106 dB SNR ADC
- 119 dB SNR DAC
- < 8μs latency mic input to HP output
- Up to 768 kHz sample rate
Remove distractions. Augment your sound experience.
Ultra low latency audio converters down to 3µs
Active Noise Cancellation allows for listening to audio content without raising the volume excessively. We provide a powerful set of converters to make high-fidelity ANC possible.
- ADC with Dynamic Range higher than 104 dB maintaining audio performance in analog mic-in mode
- Pop-up noise level as low as – 60 dBV
Ultra efficient and accurate voice command detection. Wake up when effectively required.
Audio CODEC with embedded Voice Detection
The built-in microphones in smart speakers are continuously listening for “hot keywords” followed by a command. In order to maximize the sleep state mode timeshare to limit the system power consumption, we designed audio CODEC solutions with voice activity detection capability, the Whisper Trigger IP.
- Enables ultra low power keyword spotting mode
- High Dynamic Range – up to 100 dB – to perform far-field voice recognition
Accurate sound processing. Reliable voice interaction.
Audio CODEC with high Noise Resilience
Engage seamless in-vehicle voice command and response interactions with robust noise tolerance in high temperature environment.
- High CMRR enabling in-vehicle distributed mic positioning
- Low crosstalk multi-channel CODEC
- Embedded low noise voltage regulator for enhanced resilience to power supply related noise
Download our white paper on Voice Activity Detection (VAD)
More than ever before, the attention to power consumption is paramount when developing new products. In this environment, voice activity detection has a major role to play for any new voice-controlled system. The main objective of VAD is to lower power consumption, saving on computation or data processing by deactivating part of the SoC when no speech patterns are detected.
Markets like home assistants and telecommunications can greatly benefit from this feature as the
always-on mode is not exactly suitable for wireless products or when privacy is a concern.
- Different VADs and how to compare them
- What does the market offer at this point?
- WhisperTrigger Voice Activity Detector