Changes between Version 63 and Version 64 of FAQ


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Timestamp:
Jan 12, 2009 5:42:46 PM (12 years ago)
Author:
bennylp
Comment:

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  • FAQ

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    13461347=== How to play audio to the earpiece rather than to the loudspeaker? === #sym-audio-routing 
    13471348 
    1348 With Multimedia Streaming API that we use as the implementation of sound device on Symbian, audio will be played to the loudspeaker by default, and this API does not provide the capability to switch the audio to earpiece (or in Nokia term, private audio device). So the short answer to the question is, no, we can't. 
     1349With '''Multimedia Streaming''' API that we use as the implementation of sound device on Symbian, audio will be played to the loudspeaker by default, and this API does not provide the capability to switch the audio to earpiece (or in Nokia term, private audio device). So the short answer to the question is, no, we can't. 
    13491350 
    13501351But there could be some workarounds: 
     
    13521353 - some say that if you reduce the audio level played to the speaker, the phone will automatically switch the audio routing to earpiece. I haven't verified this myself though. 
    13531354 
    1354 Alternatively you can use the Audio Proxy Server (APS) backend for the sound device, and with this API it '''might''' be possible to control the audio routing on the phone. Please see the next FAQ entry on how to enable APS. And in the future we'll probably add support for VoIP Audio Service (VAS) API, although currently we have no immediate plan to do this since this API is only supported on Nokia S60 3rd Edition FP1 devices. 
     1355Alternatively you can use the '''Audio Proxy Server (APS)''' or '''VoIP Audio Services (VAS)''' backend for the sound device (please see next entry below), and with these API's it is possible to control the audio routing on the phone. And with these backends, by default the audio routing will be set to the earpiece. Application may change the routing by calling {{{pjmedia_snd_aps_activate_loudspeaker()}}}  
     1356 
     1357But please also note that there are some known problems with some Nokia S60 3rd Edition devices with regard to switching to use the earpiece with APS, please see this [http://wiki.forum.nokia.com/index.php/Wiki_Home: KIS000612 issue on Nokia forum] for more info. 
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    13551359 
    13561360=== How can I enable Audio Proxy Server (APS) in my application? === #sym-aps