Indeed, lots of CPU there on phones. I've looked at some recent papers[1][2][3] on Neural speech synthesis and much to my surprise some of the latest research uses sinusoidal + noise models like Codec 2, and claim big drops in CPU.
So it's possible the CPU load will drop in time, perhaps down to that available on commodity ARM chips. - David [1] Wang et al, "Neural Harmonic-plus-Noise Waveform Model with Trainable Maximum Voice Frequency for Text-to-Speech Synthesis", 2019 [2] Engel et all, "DDSP: DIFFERENTIABLE DIGITAL SIGNAL PROCESSING", 2020 [3] Liu et al, "Neural Homomorphic Vocoder", 2020 On 19/11/20 2:59 pm, Bruce Perens via Freetel-codec2 wrote: > One strategy would be to treat the m17 STM32 processor as a wireless > interface alone, and do the codec processing and user interface in your > phone. This would allow you to use the high computation codecs when you > couple the m17 and your phone. > > On Wed, Nov 18, 2020, 5:45 PM Al Beard via Freetel-codec2 > <[email protected] > <mailto:[email protected]>> wrote: > > Hi guys, > > I've had a "play" and it may work, I have to setup a second system > to talk to myself at the lower bit-rate modes. > > Source and a Linux x86_64 binary at: > www.unixservice.com.au/freedv <http://www.unixservice.com.au/freedv> > > 73 > > Alan VK2ZIW > > On Wed, 18 Nov 2020 06:08:37 +1000, Al Beard via Freetel-codec2 wrote > > > > > ========== Right now ========== > > > > I'd like to see: > > > > 1) Adapt "dudestar" and "droidstar" to use the current FreeDV API. > > (minus the AI modes) > > > > 2) Adapt the above two apps to use other FreeDV modes, perhaps > even 450. > > > > Does this make cents? > > > > Alan VK2ZIW > > > > > --------------------------------------------------- > Alan VK2ZIW > Before the Big Bang, God, Sela. > OpenWebMail 2.53, nothing in the cloud. > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
