Significant advances in automatic speech recognition (ASR) have led to an abundance of devices and applications that use speech as their main interface. Microphones are no longer regarded as mere voice input devices for phone calls but rather as acoustic sensors for human-machine interaction and for acoustic sensing of the environment. We have come to expect high-quality ASR as well as other audio-related functionalities (such as crystal-clear voice calls and immersive high-definition audio) from our devices.
As we get closer and closer to creating human-like machines, we must develop similar audio-processing abilities to the ones we have as human beings.
- Voice activation and speech recognition will become key in almost every device.
- Voice communication must be clear and high quality even in noisy surroundings.
- Audio processing allows the delivery of truly immersive sound.
- Sound-sensing enables machines to interpret and act upon recognizable sounds.
The ability to capture, process, and reproduce audio signals is fundamental to mobile devices, wireless speakers, smart home devices, automotive infotainment systems, and consumer equipment.
Today’s smartphones, tablets, and wearables require ultra-low-power, high-performance processing for speech recognition and reproduction, “always-on” functionality, and advanced multi-microphone voice capabilities. Because they employ multi-microphone setups for far-field voice pickup, smart wireless speakers and other smart battery-operated devices must be optimized for the best combination of performance and power consumption. Finally, high-end audio for home entertainment and automotive infotainment systems demand the best possible hi-fi audio output.
The key to meeting these requirements lies in embedding multi-functional DSP IP architectures provide the following:
- Provide for small die size, high code density, and high processing power
- Enable SoC designers to select the optimal implementation in terms of silicon area, power consumption, and operating frequency
- An ecosystem that includes development platforms to speed application development and prototyping, as well as a wide variety of software modules that are available off-the-shelf