|
I am doing development on linphone android code. In the AMR ( Adaptive Multi-Rate Speech) Codec there are different modes / bit rates of 12.2, 10.2, 7.95, 7.40, 6.70, 5.90, 5.15 and 4.75 kb/s which are based on frames that contain 160 samples and are 20 milliseconds long.
I want to use the bitrate of 5.15 Kb/s. I want to know how i can change the default bitrate. In the code its also called Mode. In the file amrnb.c , in the funtion enc_init i have changed the mode from 7 to 2. But it has not effected the codecs bit-rate. Kindly help in this regards how i can change the AMR mode/bitrate.
Regards,
|