Contrast experiment

[a897456]

http://www.rowetel.com/?page_id=452 In the comparison experiment, you mentioned a lot of encoders, could you please provide links, I want to use them too. THS MELPe 2400 bit/s LPC-10 2400 bit/s MELPe 600 bit/s AMBE 2000 bit/s...

[tmiw]

Not sure about MELPe but locations for many of the rest are mentioned in the blog post:

The AMBE samples were generated using a DV-Dongle, a USB device containing the DVSI AMBE2000 chip. The LPC-10 samples were generated using the Spandsp library.

[a897456]

The AMBE samples were generated using a DV-Dongle, a USB device containing the DVSI AMBE2000 chip. The LPC-10 samples were generated using the Spandsp library.

Yes, but through the device such like USB device, it's not practical for me, I just want to implement these bit rates through code for comparison experiments, and I can't find any good code on github.

[tmiw]

The AMBE samples were generated using a DV-Dongle, a USB device containing the DVSI AMBE2000 chip. The LPC-10 samples were generated using the Spandsp library.

Yes, but through the device such like USB device, it's not practical for me, I just want to implement these bit rates through code for comparison experiments, and I can't find any good code on github.

AMBE has traditionally been patent encumbered (and the D-Star variant only recently went out of patent), which likely explains why there's no easily available software-only implementation.

[a897456]

Has codec2 published any papers？I used codec2 as the keyword, but I didn't find the paper

[drowe67]

1. Links on https://www.rowetel.com/wordpress/?page_id=452
2. doc/codec2.pdf

[a897456]

I'm sorry, I mean has codec2 been published in journals or conferences.

[drowe67]

No