Tensilica Hi-Fi audio DSP shipments may reach 1 billion in the next year

Since Tensilica launched its first Hi-Fi DSP core (24-bit DSP) nine years ago, Tensilica ’s Hi-Fi DSP core shipments have reached 300 million today. Such high-speed growth is mainly due to the consumer market's increasing requirements for the audio quality of the rapidly growing smartphones and tablet computers. To make an excellent audio system design for mobile devices, design engineers must Overcome many new challenges.

For example, today ’s narrowband voice Codec and basic noise suppression functions are basically enough to use an optimized 200MHz audio DSP, but after 2-3 years, the main frequency of the audio DSP must be increased above 600MHz to meet the needs of the following emerging applications, including : AMR WB becomes the mainstream voice Codec, the development of VoIP ultra-wideband Codec, audio pre-processing and post-processing require more DSP capabilities, active noise suppression, microphone array beamforming, voice recognition anytime, anywhere, and voice call receiving end Perform adaptive processing.

The consumer market's requirements for audio entertainment functions are also growing rapidly. For example, smartphones will directly support multi-channel entertainment, including Netflix, Amazon and other audio streaming content and content stored in flash memory; games will support up to 32 audio streams to achieve Immersive gaming scenarios, which place higher demands on the low latency of audio DSPs; the complexity of audio post-processing is increasing, such as volume increase, bass / treble / dynamic equalization effect processing, stereo sound field expansion and 5.1 virtual sound The realization of Tao.

Next year, with the rapid development of the LTE communication market, the demand for Hi-Fi audio DSP cores in smartphones and tablets will also usher in a new wave of peaks. Chris Rowen, founder and CTO of Tensilica, said: "Today the market demand for Hi-Fi DSP cores for LTE baseband has reached one million every quarter. I expect that by 2014, Tensilica is expected to deliver about 1 billion Hi-Fi annually. DSP core. "

Currently Tensilica has launched 4th generation Hi-Fi DSP cores, namely: Hi-Fi 1, Hi-Fi 2, Hi-Fi EP and Hi-Fi 3, of which Hi-Fi 3 contains 2 32-bit MACs, Hi is retained -Fi 2 architecture to maintain compatibility, but improves the performance of post-processing / pre-processing DSP cores, and the performance on voice Codec is 1.5 times higher than that of Hi-Fi 2.

Chris Rowen pointed out: "Voice functions are very power-hungry, and video playback is even worse, but the current popular ARM Cortex plus NEON is not an efficient architecture for real-time audio and video processing, they can only be used as the main Controller or application processor, Tensilica Hi-Fi DSP core is the best choice for low-power, high-efficiency audio and video processing. Our Hi-Fi DSP core not only leads the market share of MIPS and CEVA, but also has better performance MIPS or CEVA core, because CEVA is a general-purpose DSP core, the power consumption is higher. "

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