Changes between Version 64 and Version 65 of FAQ

Timestamp:

Jan 15, 2009 8:20:52 AM (15 years ago)

Author:

bennylp

Comment:

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FAQ

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 Note that too many console logging messages will also disrupt the audio.
 
-=== I get problem using APS === #symapsprob
-
- - '''Application crashes''' or '''device reboots''' when a call started (or accessing sound device) on S60 3rd ed FP1 devices. This symptom may be related to [http://wiki.forum.nokia.com/index.php/KIS000796_-_Frame_length_variation_for_G.711_encoder G.711 frame size variation issue] while our APS implementation is currently hardcoded to use 20ms G.711 frame size. We are working on this (enable auto-detection of G.711 frame size), meanwhile the temporary solution would be:
-   1. change audio frame time from 20ms to 10ms, i.e: {{{med_cfg.audio_frame_ptime = 10;}}}
-   1. in the {{{CPjAudioEngine::RecCb()}}} & {{{CPjAudioEngine::PlayCb()}}} of ''symbian_sound_aps.cpp'', change samples buffer size and its operations from 160 to 80.
- '''Update:'''
- The frame length variation issue is supposed to be fixed by ticket #680.
-
- - There is '''no audio''', but there seems to be no audio error/problem shown in the log/console. We encounter this when the version of {{{APSServer2.sisx}}} installed on the device is different to the version of APS SDK used for building the application.
-
- - There is audio, but somehow it '''sounds unclear''' or there is '''breaking/random noise'''. It may be related to the first issue above, application with 10ms G.711 frame size is running on device with 20ms G.711 frame size.
+=== I get device reboots, no audio, or distorted audio with APS === #symapsprob
+
+Symptoms:
+ - device reboots itself when the application is trying to use the sound device (such as before call),
+ - loss of audio, even though the log says that audio devices have been opened successfully, or
+ - distorted audio
+
+All of these problems may be caused by these:
+ - Wrong APSServer version installed on your phone.
+    - in one of our experiments, we built the application with APSServer 2.40(3) SDK while the version installed on FP1 phone is 2.31(0), and this caused the no audio problem.
+ - This is related to [http://wiki.forum.nokia.com/index.php/KIS000796_-_Frame_length_variation_for_G.711_encoder G.711 frame size variation issue] while our APS implementation '''was''' hardcoded to use 20ms G.711 frame size:
+     - we suspect that running the application on devices which has 10ms frame size may crash the phone, or
+     - if you're building the application with 10ms frame size and run it on device which has 20ms frame size, you will get distorted audio.
+
+Solutions:
+ - the frame size issue has been fixed by ticket #680/#690 which will be available on PJSIP release [milestone:release-1.1 1.1] and [milestone:release-1.0.2 1.0.2].
+ - please use the latest APS version (currently 2.40(3)), and make sure the APSServer version installed on your device matches the APS SDK/plug-in when building the application.
+
 
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