I’m having audio issues after updating this module:
EC200AEUHA-N06-SNASA
Details
ATI
Quectel
EC200A
Revision: EC200AEUHAR01A10M16
OK
The firmware i had was - EC200AEUHAR01A10M16_01.001.01.001 and updated with EC200AEUHAR01A30M16_01.300.01.300.
The problem I’m having with audio is the audio is totally distorted and not clear at all.
Test that i performed
For example, when making a call using ADT and answer the call from the other end and play an audio file using aplay -D plughw:0,0 voice-signed16pcm.wav in another terminal. Please check the following 2 files.
File Played using aplay -D plughw:0,0 voice-signed16pcm.wav
voice-signed16pcm.7z (52.0 KB)
Recording of what i heard from the other end.
Call Recording.7z (130.9 KB)
Current settings of the moduel:
AT+QAUDCFG=?
+QAUDCFG: "num/channel",(1,2)
+QAUDCFG: "uacmode",(0,1)
+QAUDCFG: "uactype",(0-2)
+QAUDCFG: "uacrxsamp",(8000,16000)
+QAUDCFG: "uactxsamp",(8000,16000)
+QAUDCFG: "slic_indrep",(0,1)
OK
AT+QAUDCFG="num/channel"
+QAUDCFG: "num/channel",1
OK
AT+QAUDCFG="uacmode",1
+QAUDCFG: "uacmode",1
OK
AT+QAUDCFG="uactype"
+QAUDCFG: "uactype",1
OK
AT+QAUDCFG="uacrxsamp"
+QAUDCFG: "uacrxsamp",8000
OK
AT+QAUDCFG="uactxsamp"
+QAUDCFG: "uactxsamp",8000
OK
AT+QAUDCFG="slic_indrep"
+QAUDCFG: "slic_indrep",0
OK
Is there any other way to reset these audio settings, I have tried flashing the new firmware firmware again and that did reset audio settings, but the audio quality is still the same. ?
Can i go back to the previous firmware which is EC200AEUHAR01A10M16_01.001.01.001 as audio was working fine before or may be try a different firmware release.?