Sharing all useful tool&srcipt&demo during my career. Enjoy !
parse_hci_google_voice.py
lib_adpcm_codec.py
hci log
pcm file
1.rename hci log to "btsnoop_hci.cfa"
2.check and modify in your hci log about the parameter:TOTAL_LENGTH,DATA_HANDLE
3.double click parse_hci_google_voice.py
4.play the pcm file with(8MHZ,16bit)or(16MHZ,16bit)mono channel.