Hi All !
I test my application where I send "Real TRAU FR GSM" traffic through this application , extract pure FR frames (260 bits) , add 4 bits of MAGIC and write these 33 byte frames to file.
The "Real TRAU FR GSM" traffic I send is known good speech.
When playing the recorded gsm file (e.g. by "Switch plus" , or converting to .wav by sox.exe or others tools ) I don't listen the good speech I hear only noise.
What may be wrong?
I played with bits and byte order in frames but get same bad results.
Please advice!
If you can help me please send answer directly to me: semion_p@rad.com