MFCC vs aMFCC Table of Contents Introduction Mel Frequency Cepstral Coefficient (MFCC): use cases, coefficient, process, détail principles, conclusion Analog MFCC: concept, conclusion MFCC vs aMFCC: key differences, accuracy results Conclusion Introduction With the recent development of IoT and mobile devices, the need for efficient voice-activated functions is significantly increasing. The traditional approach leverages cloud connectivity to execute speech recognition and natural language processing algorithms on powerful remote servers. While this method is effective, it can be challenging for applications such as battery-powered devices due to the significant energy consumption required to continuously stream audio data to the cloud.Another approach would be to process wake-up keywords and a restricted set of command words on the end device itself, thereby reducing the power budget to a minimum. This will also allow to reduce the latency.The analog MFCC (aMFCC) approach allows to manage this challenge by drastically reducing the power needed to extract the audio features commonly used by voice recognition algorithms.This application note presents both the conventional MFCC and the aMFCC approaches and provides the key insights to understand their differences. Download White Paper
Design & Reuse IP SoC 2023 – AVS Presentation available
Design & Reuse IP SoC 2023 – AVS Presentation available Feel free to download the presentation by Vincent Telandro, our Product Marketing Manager, given on 5 December at the IP SoC Days 2023, organised by Design & Reuse. Adaptive Voltage Scaling – Ultimate Energy Efficiency Adaptive Voltage Scaling (AVS) is a dynamic power optimization technique that adjusts the voltage supplied to a computer chip based on its workload and operating conditions. This closed-loop approach ensures efficient energy consumption by providing only the minimum required voltage, thus reducing power dissipation without compromising performance. This presentation will showcase how AVS optimizes power consumption in real-time by dynamically adjusting chip voltage based on workload, enabling energy-efficient computer vision solutions. Download the Presentation
Design & Reuse IP SoC 2023 – Far-Edge Computer Vision, Presentation available
Design & Reuse IP SoC 2023 Far-Edge Computer Vision Presentation available You are welcome to download the presentation of our CTO, Vincent Huard, at the Design & Reuse IP SoC conference 2023 (December 4th – 5th). Transforming Far-Edge Computer Vision with Energy-Efficient AI In the rapidly advancing field of computer vision, the stakes have never been higher for innovations that not only push the boundaries of technology but also prioritize sustainability. At the forefront of this revolution is our CTO’s presentation at this conference “Transforming Far-Edge Computer Vision with Energy-Efficient AI.” Download the Presentation
Adaptive Voltage Scaling (AVS): Enhancing Chipset Performance and Efficiency
Adaptive Voltage Scaling (AVS): Enhancing Chipset Performance and Efficiency Table of Contents Understanding process variation and corner tightening Dynamic voltage and frequency scaling (DVFS) Introducing Adaptive Voltage Scaling (AVS) AVS mechanism Benefits of AVS Enhanced power efficiency Device aging Conclusion Introduction Adaptive Voltage Scaling (AVS) is a critical technique in the semiconductor industry to optimize the performance and power efficiency of integrated circuits (ICs). In this whitepaper, we will delve into the principles and implementation of AVS, exploring how it addresses the challenges posed by process variation and how it contributes to delivering a seamless user experience. Additionally, we will position AVS with other solutions like Dynamic Voltage Frequency Scaling (DVFS) to get a global picture. Understanding Process Variation and Corner Tightening In semiconductor manufacturing, process variation is an inevitable reality. Different process nodes, fabrication technologies, and foundries (GF, TSMC, SMIC and other) face variations in the manufacturing process, leading to performance discrepancies among individual devices. Silicon vendors provide models that describe the extreme operating conditions of each chip, allowing chipset designers to understand their performance boundaries. Those extreme operating condition are called Corner cases. You can find out more by downloading the white paper. Download White Paper
Dolphin Design enables Orca’s RF SoCs for direct-to-satellite communications
Dolphin Design announces today it has partnered with Orca Systems, a fabless semiconductor company for the development of ORC3990, a highly integrated wireless system-on-chip (SoC) to provide Internet of Things (IoT) connectivity over satellite and Orca’s new-generation RF SoC products. Orca’s wireless SoCs include a power management unit (PMU) based on Dolphin Design’s full suite of power management IPs tailored for ultra-low power applications such as Satellite IoT endpoint SoC and other power-sensitive SoC devices for direct-to-satellite and other industrial applications. Grenoble, France | August 1, 2023 – With the advantage of providing connectivity anywhere, the race for satellite IoT connectivity for everything from shipping container and pallet tracking to livestock tracking and smart agriculture is starting to heat up, but it requires meeting challenges around performance, power consumption, price, and size. Orca’s RF SoC integrates all required system functions, including RF transceiver, digital modem, CPUs, and power management, for satellite IoT connectivity in a small package that can operate with a couple of AA batteries for up to 10 years – a game-changing technology for satellite IoT connectivity. The RF SoCs contain fully integrated functions and, in particular, the power management unit (PMU) subsystem including all the analog blocks provided by Dolphin Design, such as a low-frequency crystal oscillator, a switching regulator, two linear regulators, an over-voltage protection module and, a combined power-on and power-off reset. Orca Systems RF SoC for satellite IoT application includes Dolphin Design’s Power Management IPs panoply(Credits: Orca Systems) “We are very pleased to embed Dolphin Design’s IPs inside our SoC product family, including ORC3990, the world’s first fully integrated solution for direct-to-satellite IoT connectivity,” said John McDonough, CEO of Orca Systems. “Our company partners closely with Dolphin Design for the well-known ultra-low-power IPs needed for the satellite industry and our SoC. Their expertise in power management empowers our SoC with the best-in-class low-power performance and This is just the beginning of a great adventure together.” “At Dolphin Design, our core expertise lies in power management and ultra-low power technologies, which are deeply ingrained in our company’s DNA,” said Hakim Jaafar VP of Marketing and Application at Dolphin Design. “We aim to provide the best solution to any energy-caring and challenging markets such as consumer and industrial IoT. The close and strong collaboration with ORCA was a mutual benefit for both companies leading to the success of Orca systems’ SoC products”. About Orca Systems Orca Systems is a champion of always live wireless connectivity, delivering a groundbreaking low-power digital RF transceiver portfolio for the exploding IoT semiconductor market. Patented Orca Live Wireless RF™ digital radio and digital power amplifier (DPA) technology provide ultra-low power consumption to extend the battery life of IoT devices. Silicon-proven Orca Live Wireless RF™ digital transceivers are available to select customers as IP cores, known good die (KGD), and packaged integrated circuits. IP cores are optimized for integration into SoC devices for the lowest cost, smallest silicon area, and lowest power IoT SoC products. Orca Systems is headquartered in San Diego, California, with an exceptional research and development center and state-of-the-art lab facility in Bangalore, India. About Dolphin Design Dolphin Design, a Soitec subsidiary, is a leading provider of semiconductor IP solutions, specializing in ASIC and IP design targeting markets such as Defense, Automotive, industrial, Personal electronics, and IoT. Dolphin Design cutting-edge technology IPs in AI computing, Power management, High-quality Audio, Power metering, and design safety/robustness, allow their thousand customers/partners to accelerate design cycles, foster faster time-to-market and build products/solutions that address the challenges of any industry and support a more sustainable world. With a customer-centric approach, Dolphin Design provides exceptional support for successful project outcomes. Media contacts: Charlotte Reverand Dolphin Design Communication Manager charlotte.reverand@dolphin.fr
Dolphin Design unveils an innovative IP for sound classification cutting down energy by 99%
Dolphin Design announced the launch of WhisperExtractor, a game-changer mixed-signal IP for the voice and audio-enabled SoCs. WhisperExtractor IP indeed enables voice and sound classification at µW level power budget, paving the way to breakthrough always-on voice user interface and always-on sound detection. This IP enhance battery-powered applications aiming at Keyword Spotting (KWS), Automatic Speech Recognition (ASR), Natural Language Processing (NLP), or power-efficient sound classification such as intelligent security camera. Grenoble, France | June 27, 2023 – WhisperExtractor relies on a disruptive technology that addresses one of the major challenges of battery-powered devices that want to enable voice-user interaction or sound classification, which is power efficiency. It has become critical to have efficient and low-power SoC design to enhance the end-user experience. How does WhisperExtractor works? Conventional signal processing methods to process Mel Frequency Spectrum Coefficients (MFCC) require a significant amount of energy to convert analog signals to digital and perform signal processing calculations and advanced software capabilities. It makes it difficult to implement always-on voice listening or sound classification without draining too much current from the battery. Key Features and Benefits of WhisperExtractor: Unrivalled Power Efficiency: µW level power consumption, extending application live time of battery-operated devices. Always on domain friendly: 32 kHz clock input, RC or crystal oscillator. Seamless software integration: MFCCs without any software programming. Versatile: Built-in support of various use cases, voice classification, sound classification… “We are proud to bring this cutting-edge technology to the IP market,” said Hakim Jaafar VP Marketing at Dolphin Design. “WishperExtractor furthers our investment in our comprehensive set of IPs that enable the cost-effective design of power efficient SoCs. Be it our audio converters, power management, or processing IPs. With this ground-breaking IP, we prove once again that innovation is part of our DNA, so stay tuned! ” The Dolphin Design IP catalog encompasses more than 300 references of audio converters, power management, and processing IPs that are commodity features in SoCs. These IPs, which are proven in multiple foundries and processes enable numerous fabless and system makers that aim at designing a more energy-efficient SoC while focusing their in-house resources on more valuable tasks to differentiate their SoC. Find out more about WhisperExtractor. About Dolphin Design Dolphin Design is a leading provider of semiconductor IP solutions, specializing in ASIC and IP design targeting markets such as Defense, Automotive, industrial, Personal electronics, and IoT. Dolphin Design cutting-edge technology IPs in AI computing, Power management, High-quality Audio, Power metering, and design safety/robustness, allow their thousand customers/partners to accelerate design cycles, foster faster time-to-market and build products/solutions that address the challenges of any industry and support a more sustainable world. With a customer-centric approach, Dolphin Design provides exceptional support for successful project outcomes. Media contacts: Charlotte Reverand Dolphin Design Communication Manager charlotte.reverand@dolphin.fr
Dolphin Design Selects Imperas for Processor Functional Design Verification
Imperas Software Ltd., the leader in RISC-V models and simulation solutions, today announced that ImperasDVTM has been adopted by Dolphin Design for RISC-V processor verification for the Panther DSP/AI Accelerator IP from Dolphin Design. ImperasDV, with ‘step-compare’ methodology, is the state-of-the-art approach for processor design verification including asynchronous events. Oxford, United Kingdom | June 5, 2023 – The open standard ISA (Instruction Set Architecture) of RISC-V offers processor developers many options and configurable features, in addition to the supporting tools and software, this combination offers both design flexibility and ecosystem compatibility. ImperasDV supports the RISC-V design verification tasks across the complete specification with the Imperas golden reference model, architectural validation tests, additional functional test suites, coverage analysis, and simulation-based test methodologies for asynchronous events and debug operations. The open standard RVVI (RISC-V Verification Interface) provides the essential guidelines for the infrastructure around the processor testbench that supports the growing ecosystem of Verification IP for RISC-V processor verification. The RVVI open standard and methodology is based on an open specification (https://github.com/riscv-verification/RVVI), and can be adapted to any configuration permitted within the RISC-V specification. In adopting the RVVI standard, developers can leverage all the common components off the shelf and explore additional options with reusable verification IP across projects. “Our verification methodology for the Panther DSP/AI Accelerator IP needs to address not just the full range of the current configuration options but also the roadmap for Panther,” said Philippe Berger, CEO of Dolphin Design. “ImperasDV is the cornerstone of our simulation-based DV strategy, with the Imperas golden reference model, scoreboard, verification IP, functional coverage analysis and debug efficiency.” “In complex compute systems the processor core may be complemented with additional accelerators or combined in multicore arrays to address the application workloads,” said Simon Davidmann, CEO at Imperas Software Ltd. “RISC-V processor verification is always important, but this is especially true with complex structures that may present the processor core with unusual scenarios not encountered in traditional embedded designs. ImperasDV supports the sophisticated DV methodologies such as ‘lock-step-compare’ and asynchronous events that are required for today’s advanced cores and multi-processor platforms.” Availability The RVVI (RISC-V Verification Interface) specification is available at https://github.com/riscv-verification/RVVI. The ImperasDV RISC-V processor verification technology is already in active use with many leading customers, some of which have working silicon prototypes and are now working on 2nd and even 3rd generation designs. These customers, partners and users span the breadth of RISC-V adopters from open source to commercial; research to industrial; microcontrollers to high performance computing. A select sample of these include – Codasip, Dolphin Design, EM Microelectronics (Swatch), Frontgrade Gaisler, Intrinsix, NSITEXE (Denso), Nvidia Networking (Mellanox), NXP, OpenHW Group, MIPS, Seagate Technology, Silicon Labs, and Valtrix Systems, plus many others yet to be made public. ImperasDV is available now, additional details are available at Imperas.com/ImperasDV. The free riscvOVPsimPlus package, including the Imperas RISC-V Reference Model, sample test suites and instruction coverage analysis, including updates for the latest RISC-V ratified specifications is also available on OVPworld at www.ovpworld.org/riscvOVPsimPlus. Imperas & Dolphin Design at the RISC-V Summit Europe Imperas is presenting a keynote talk on RISC-V processor verification at the RISC-V Summit Europe June 5-9 in Barcelona. Additionally, Imperas is presenting a paper on “Hybrid Simulation with Emulation for RISC-V Software Bring Up and Hardware-Software Co-Verification,” as well as two poster papers. Attendees can also talk to Imperas engineers at the exhibit booth at the Summit. At the RISC-V Summit Europe, Pascal Gouedo, RISC-V expert at Dolphin Design, will be highlighting our poster on the design and verification strategy of an open-source RISC-V processor for industrial-grade edge-computing platforms. Dolphin Design CTO, Vincent Huard, will be also present at the event. https://riscv-europe.org All trademarks or registered trademarks are the property of Imperas Software Limited or their respective holders. About Imperas Imperas is the leading provider of RISC-V processor models, hardware design verification solutions, and virtual prototypes for software simulation. Imperas, along with Open Virtual Platforms (OVP), promotes open-source model availability for a spectrum of processors, IP vendors, CPU architectures, system IP and reference platform models of processors and systems ranging from simple single core bare metal platforms to full heterogeneous multi-core systems booting SMP Linux. All models are available from Imperas at www.imperas.com and the Open Virtual Platforms (OVP) website. For more information about Imperas, please see https://www.imperas.com/. About Dolphin Design Dolphin Design, a Soitec subsidiary, is a leading provider of semiconductor IP solutions, specializing in ASIC and IP design targeting markets such as Defense, Automotive, industrial, Personal electronics, and IoT. Dolphin Design cutting-edge technology IPs in AI computing, Power management, High-quality Audio, Power metering, and design safety/robustness, allow their thousand customers/partners to accelerate design cycles, foster faster time-to-market and build products/solutions that address the challenges of any industry and support a more sustainable world. With a customer-centric approach, Dolphin Design provides exceptional support for successful project outcomes. Media contacts: Charlotte Reverand Dolphin Design Communication Manager charlotte.reverand@dolphin.fr
ShortLink AB and Dolphin Design partner to create a highly energy-efficient Sub-GHz ASIC design platform
ShortLink AB, a leader in silicon IPs for Very Edge Computing embedding AI, and Dolphin Design announce their partnership in the frame of Dolphin Design’s GoASIC! Program. The two companies bring together their respective breakthrough IPs and SoC design expertise to build a comprehensive design platform for the design of Sub-GHz enabled wireless ASICs. Grenoble, France | November 10, 2022 – The GoASIC! Sub-GHz design platform combines ShortLink and Dolphin Design complementary silicon IPs. It aims at providing a total silicon IP solution to grant the fastest, safest, and most cost-effective design of custom-made and highly energy-efficient Sub-GHz Application Specific Integrated Circuits (ASICs). Such Sub-GHz ASICs can be based either on RISC-V or ARM cores and can integrate a suitable mixed signal Sub-GHz transceiver IP together with a complete power management system. The design platform also encompasses high-performance clocking, various ADC solutions, multiple cores, DSP/neural network acceleration, and more features that speed up the safe design of custom ASICs. Philippe Berger, Dolphin Design CEO: “We are proud to have Shortlink as one of the first partners to enter the GoASIC! program. Dolphin Design’s GoASIC! program grants system makers access to a network of semiconductor experts that can help them build integrated circuits customized for their needs in terms of features, performance, and security. Through this program, we minimize their time-to-market while streamlining and securing the supply chain. The high level of integration that we can support both reduces the product form factor and improves the BoM cost structure.” “This partnership will allow more companies to embrace ASIC technology. It is important that such ASIC technology becomes more accessible, especially considering today’s global uncertainties. By lowering entry barriers to ASICs we allow more companies to take control of their supply chain and technology stack. It will also enable us to reach new customers and partnerships” – says August Pansell, Chairman of the board at ShortLink. August Pansell continues: “We believe that the GoASIC! Sub-GHz program is perfect for many applications related to the Internet of Things. We see a great demand when it comes to smart grids, power metering, industry 4.0, and agricultural applications. We have also seen projects for connecting renewable energy sources which is a fantastic application”. Suitable building blocks are selected based on the system requirements and any application-specific gaps are implemented as new silicon IP or custom functionality. Projects can be handled as turn-key projects from specification to series production by leveraging extensive supply chain partnerships. The semiconductor shortage has prompted many companies to consider a custom ASIC to increase control over their supply chain. The increasing polarisation and uncertainties in the world have shown the importance of controlling and understanding the technology and manufacturing required for your company. About ShortLink ShortLink AB has over 25 years of experience in the development of mixed-signal wireless ASICs. We offer a complete workflow for turnkey ASIC development, from specification to tape-out and manufacturing. Our expertise, projects and IP blocks span a variety of technologies and semiconductor foundry companies from deep sub-micron CMOS technologies to high voltage (400V+) technology nodes. We are experienced in porting designs between process nodes and foundries – an invaluable skill to reduce risk and cost during development while maintaining flexibility. Website: https://shortlink.se/ Inquiries: martin.lindskog@shortlink.se About Dolphin Design Dolphin Design, a Soitec subsidiary, is a leading provider of semiconductor IP solutions, specializing in ASIC and IP design targeting markets such as Defense, Automotive, industrial, Personal electronics, and IoT. Dolphin Design cutting-edge technology IPs in AI computing, Power management, High-quality Audio, Power metering, and design safety/robustness, allow their thousand customers/partners to accelerate design cycles, foster faster time-to-market and build products/solutions that address the challenges of any industry and support a more sustainable world. With a customer-centric approach, Dolphin Design provides exceptional support for successful project outcomes. Media contacts: Charlotte Reverand Dolphin Design Communication Manager charlotte.reverand@dolphin.fr
Sonical partners with Dolphin Design to build the future of hearables
Sonical Inc, a pioneer in developing an open software platform for hearables, today announced a partnership with Dolphin Design. Together, the companies will propose a game-changing heterogeneous computing platform to design ASIC/SoCs with an innovative operating system that will drastically change the end-user experience with hearables. Grenoble, France | September 5, 2022 – CosmOS, the operating system developed by Sonical, combined with a growing ecosystem of plugins and apps, enables users to have a customizable experience for hearables such as headsets, earbuds, hearing aids, and more. CosmOS empowers product makers to transition to Headphone 3.0, which uses an ear computer and operating system allowing end-users to easily define and personalize their experience using apps, just like we do with our smartphones today. The ability to run apps that provide new and greater end-user experience with hearable devices involves a new generation of ASIC/SoC that combines greater computing power and artificial intelligence, without requiring extra power consumption. “Every person has a unique hearing preference which changes during the day depending on which activity you are doing”, said Gary Spittle, Sonical CEO: “We have developed CosmOS to support the three pillars of hearable technologies that not only allow us to listen to audio but to also listen to the world and listen to our bodies. By downloading apps for your ears, we can deliver new experiences that are beyond the capabilities of regular Bluetooth headphones. With the inclusion of multiple sensors for biometric data capture, we are working with ear device companies to unlock a new wave of innovation, using AI-based algorithms, which of course requires a significant amount of low-power computation. The combination of our operating system and the Dolphin Design IP will enable chip manufacturers to build state-of-the-art ear computers.” Philippe Berger, Dolphin Design CEO added “We have a long-lasting and successful experience in providing ultra-low power audio and power management IPs for the wearable market. Our recent addition of processing IP design platforms enables breakthroughs in performance without compromising on low-power. This market is now facing new technological advancements driven by enhanced user experience as proposed by Sonical thanks to CosmOS. These new applications require disruptive computing IPs with unprecedented energy efficiency to preserve the battery lifetime of the end device. We have co-designed our new accelerators from day one, considering both the Hardware and the Software sides to propose unrivaled energy efficiency. These performances are supported by a robust deployment framework and related drivers to democratize energy-friendly ambient computing.” About Sonical Sonical Inc., is a provider of ultra-low power hardware with associated operating system that provides the technology bridge to put software apps into multiple endpoint devices. To learn more about Sonical, Headphone 3.0, CosmOS and Ear Computers, please visit https://www.sonical.ai About Dolphin Design Dolphin Design is a leading provider of semiconductor IP solutions, specializing in IP design targeting markets such as Defense, Automotive, industrial, Personal electronics, and IoT. Dolphin Design cutting-edge technology IPs in AI computing, Power management, High-quality Audio, Power metering, and design safety/robustness, allow their thousand customers/partners to accelerate design cycles, foster faster time-to-market and build products/solutions that address the challenges of any industry and support a more sustainable world. With a customer-centric approach, Dolphin Design provides exceptional support for successful project outcomes. Media contacts: Charlotte Reverand Dolphin Design Communication Manager charlotte.reverand@dolphin.fr