pjsua pb with micro and speaker

[samuelv@xxxxxxxxxxx (Samuel Vinson)]

Hi Benny,

I manage without problem playback and record. For this, I use
    pjmedia_snd_port_create_player
    pjmedia_snd_port_create_rec

But when I use pjsua, the micro works badly.
I checked that Microphone and Speaker are Functioning Properly (cc 0 0), 
and the audio is sounding like it's skipping some frames.
Does pjsua uses pjmedia_snd_port_create ?
If yes, can I test like that, to know if the problem comes from that ?
    pjmedia_wav_player_port_create(..., &file_play_port);
    pjmedia_wav_writer_port_create(..., &file_rec_port);
    pjmedia_snd_port_create(..., &snd_port)
    pjmedia_snd_port_connect( snd_port, file_rec_port);
    pjmedia_snd_port_connect( snd_port, file_play_port);

In Pjsua, is it possible to not use pjmedia_snd_port_create but 
pjmedia_snd_port_create_player and pjmedia_snd_port_create_rec ? by 
configuration or option ?

Thanks in advance

Samuel