[Linphone-users] Arm-linphone and RAM usage

[Salvador Gianluca]

hi to all the list!

I succesfully cross-compiled linphone for my ARM: EP9302 processor @200MHz, 32MB RAM 16MB Flash!

linphonec works good: i can make and receive calls, but the audio quality isn't acceptable: i have about 10 secs delay and not all the words arrives!

What can i do to enhance the audio quality? I though there could be some ways to do this:

1. in the .linphonerc file there is a list of codecs that can be used. I think that the lowest for bit rate (speex, gsm, ...) it could be a good choice

2. in the .linphonerc file i found "audio_jitt_comp=60" in rtp section. what it means? Could it help me improving audio quality and delay? 

3. If the audio streaming is stored in a buffer (perhaps circular?) before to be compressed-decompressed, i could enhance the buffer-size...

4. the RAM usage is shared between linux filesystem and execution, and users applications. I could increase the application part and reduce filesystem...

What do you think about this ways? Are they correct?

Where can i find an in-deep documentation about how linphonec uses RAM resources?

Any other ideas?

Thanks and best regards,

Gian