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Lyra: A New Very Low-Bitrate Codec for Speech Compression
Lyra: A New Very Low-Bitrate Codec for Speech Compression
One concern with generative models is their computational complexity. Lyra avoids this issue by using a cheaper recurrent generative model, a WaveRNN variation, that works at a lower rate, but generates in parallel multiple signals in different frequency ranges that it later combines into a single output signal at the desired sample rate. This trick enables Lyra to not only run on cloud servers, but also on-device on mid-range phones in real time (with a processing latency of 90ms, which is in line with other traditional speech codecs). This generative model is then trained on thousands of hours of speech data and optimized, similarly to WaveNet, to accurately recreate the input audio.
·ai.googleblog.com·
Lyra: A New Very Low-Bitrate Codec for Speech Compression
How Entrepreneurs' Brains Might Be Different
How Entrepreneurs' Brains Might Be Different
The brains of entrepreneurs displayed significantly higher connectivity between the right insula and the anterior prefrontal cortex compared to the brains of managers. This combination suggested greater cognitive flexibility in the entrepreneurs.
the ability of your brain to shift its perspective when needed, to be able to accommodate multiple perspectives, and to adapt to new information. People high in cognitive flexibility are better able to find novel ways to address problems, show more skill in adjusting to new situations and obstacles as they arise, and are less likely to get caught in rigid thinking patterns like perseveration or rumination. People with high cognitive flexibility also may have a natural tendency toward higher creativity and the exploration of new ideas, and be better suited to changing mental gears "on the fly" when a situation calls for it.
·psychologytoday.com·
How Entrepreneurs' Brains Might Be Different