[Speex-dev] codec at very low bit rate (2 kbps)

[Leonardi Andrea]

Hi to everyone.
I'm using speex in an application at the minimum bit rate (2.15 kbps), setting the encoder quality at 0, but obviously the quality is terrible. My question is: there are some signal processing that I can do to improve the quality of the signal at very low bit rate? Or can you tell me other codec that works well at that rate?
Thank you.