Can Lyra be parameterized?

[psommerfeld]

I'm wanting to try to modify Lyra to try encoding at 1200 bps or even sub-1000.
I've just started looking at Lyra.
Has anyone looked at the difficulty of adding a custom bitrate?

[mchinen]

Hi @psommerfeld, thanks for the question. We are looking into releasing a model that can be used for the current rates as well as lower bitrates, including the range you mention. These would be low quality but intelligible.

[psommerfeld]

Wow that would be great! I have been looking at 'Codec 2' https://github.com/drowe67/codec2/discussions which is intelligible at 700 bps, and even 450 bps. I'd love to see how Lyra does at those bitrates!

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On Wed, Jan 4, 2023 at 5:20 PM Michael Chinen ***@***.***> wrote: Hi @psommerfeld <https://github.com/psommerfeld>, thanks for the question. We are looking into releasing a model that can be used for the current rates as well as lower bitrates, including the range you mention. These would be low quality but intelligible. — Reply to this email directly, view it on GitHub <#113 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAIZFDRV4RVDFG3DI3XBWMDWQXZRLANCNFSM6AAAAAATMJWSCU> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[koencremers20]

Hi @psommerfeld, thanks for the question. We are looking into releasing a model that can be used for the current rates as well as lower bitrates, including the range you mention. These would be low quality but intelligible.

Is there any news on this topic?

[cloudwiser]

Yes - I'm also interested in bitrates lower than the current 3.2kps minimum for new application.
Is there any news on the release of the Soundstream tflite models that would support encode and decode of a bitrate in the 1.5-to-2.0 kps range?
Thanks!