hi, all

    I used my soft phone with speex phone in speex, 8000hz , my softphone ' codec is base on opal lib.
but when I register it in freeswitch and call in a conference . I fine the voice quality is not good enough。

   I did print the parameter in switch_speex_decode() function , I find that my softphone sent  encoded_data_len=21.  if I send frame as encoded_data_len=20, then the voice quality become nice.

   So ,who can tell me how to change the freeswitch's speex parameter, then I can operate the encoded_data_len=21  ?


best regards .
your freeswitch' fan.

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