HydrogenAudio

Lossy Audio Compression => Speech Codecs => Topic started by: ADPCMler on 2022-02-22 15:33:28

Title: Low Complexity Communication Codec (LC3) software?
Post by: ADPCMler on 2022-02-22 15:33:28
Hi,

I am looking for an implementation of the LC3 bluetooth codec. Do you know any software or website allowing to encode and decode wav files? I only found this https://www.bluetooth.com/de/specifications/specs/low-complexity-communication-codec-1-0/ webiste, but I require an bluetooth account which I dont have nor can I create it.
Thank you for any help :)
Title: Re: Low Complexity Communication Codec (LC3) software?
Post by: Kamedo2 on 2022-02-22 15:49:56
LC3plus, provided by ETSI  (European Telecommunications Standards Institute).
https://www.iis.fraunhofer.de/en/ff/amm/communication/lc3.html
Listening test result of LC3plus
https://hydrogenaud.io/index.php?topic=121850.msg1008436#new
Title: Re: Low Complexity Communication Codec (LC3) software?
Post by: Kamedo2 on 2022-02-25 18:29:22
There's zephyrproject-rtos / liblc3codec (https://github.com/zephyrproject-rtos/liblc3codec), but I don't know how to encode wav files into lc3 and decode lc3 files to wav.
Title: Re: Low Complexity Communication Codec (LC3) software?
Post by: Kamedo2 on 2022-04-25 12:51:18
Google - liblc3
This codec is premature but great!
https://github.com/google/liblc3
(https://listening-test.coresv.net/img2/liblc3-speed2.png)