Audio channels available in Android AudioManager

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I'm looking at the channels available on Android that are obtained from the AudioManager I have some doubt so that they serve or that affect

  • AudioManager.STREAM_MUSIC
  • AudioManager.STREAM_RING
  • AudioManager.STREAM_ALARM
  • AudioManager.STREAM_NOTIFICATION
  • AudioManager.STREAM_VOICE_CALL
  • AudioManager.STREAM_SYSTEM
  • AudioManager.STREAM_DTMF

I wonder the STREAM_DTMF they are associated with or what is it? When receiving a call, is its volume STREAM_SYSTEM ? During a telephone conversation, your volume is the 'STREAM_VOICE_CALL?

    
asked by Webserveis 14.05.2017 в 00:02
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1 answer

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  • AudioManager.STREAM_MUSIC - > It refers to the sound it emits when it is a music / video playback application, etc.

  • AudioManager.STREAM_RING - > the volume when they call you

  • AudioManager.STREAM_ALARM - > the alarm volume

  • AudioManager.STREAM_NOTIFICATION - > the volume of notifications

  • AudioManager.STREAM_VOICE_CALL - > the volume while you talk on the phone

  • AudioManager.STREAM_SYSTEM - > the volume of the system

  • AudioManager.STREAM_DTMF - > the volume of tone dialing, each key has a different tone, there are rules for converting tones, so that only by sending the tone can you know what number it refers to.

answered by 17.05.2017 / 13:54
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