Microphone API

To use Samsung Product API, 

<script type="text/javascript" src="$WEBAPIS/webapis/webapis.js"></script>

Should be loaded in index.html

This module defines the microphone functionalities provided by the Tizen Samsung TV Product API.

Since : 2.3

Product : TV

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Summary of Interfaces and Methods

Interface Method
MicrophoneManagerObject  
MicrophoneManager DOMString getVersion ();
boolean isConnected (DOMString uid);
void getMicrophones (MicrophoneDeviceArraySuccessCallback onsuccess, optional ErrorCallback ? onerror);
unsigned long addMicrophoneConnectListener (MicrophoneConnectCallback listener);
void removeMicrophoneConnectListener (unsigned long listenerId);
MicrophoneDeviceArraySuccessCallback void onsuccess (MicrophoneDevice[] devices);
MicrophoneConnectCallback void onevent(MicrophoneConnectEvent event) ;
MicrophoneConnectEvent  
MicrophoneConnectEventType  
MicrophoneSampleRateValue  
MicrophoneDeviceAudioFormat  
MicrophoneEffectValue  
MicrophoneStateValue  
MicrophoneAudioinputEvent  
MicrophoneDevice DOMString getUniqueId ();
unsigned long getDeviceId() ;
DOMString getName ();
boolean enableDevice (unsigned long format, unsigned long sampleRate);
boolean disableDevice ();
boolean stop (optional unsigned long ? state);
boolean play (optional boolean ? lockState);
unsigned long getVolumeLevel();
boolean setVolumeLevel (unsigned long volume);
unsigned long getSupportedEffect ();
unsigned long getEnabledEffect ();
boolean setEffect (unsigned long effect, boolean enable, optional unsigned long ? tempo, optional unsigned long ? pitch, optional unsigned long ? rate, optional unsigned long ? threshold, optional unsigned long ? noduration);
unsigned long getFilterVolume ();
unsigned long addMicrophoneEventListener (MicrophoneEventCallback listener);
void removeMicrophoneEventListener (unsigned long listenerId);
MicrophoneEventCallback void onevent (unsigned long eventType);

1. Interfaces

1.1. MicrophoneManagerObject

Defines a WebApi object instance of the Tizen Samsung TV Product API. 

[NoInterfaceObject]interface MicrophoneManagerObject {
  readonly attribute MicrophoneManager microphone;
};


  WebApi implements MicrophoneManagerObject;

Attributes

1.2. MicrophoneManager

Provides methods for microphone functionalities. 

[NoInterfaceObject]interface MicrophoneManager {
  DOMString getVersion();
  boolean isConnected(DOMString uid);
  void getMicrophones(MicrophoneDeviceArraySuccessCallback onsuccess, optional ErrorCallback ? onerror);
  unsigned long addMicrophoneConnectListener(MicrophoneConnectCallback listener);
  void removeMicrophoneConnectListener(unsigned long listenerId);
};

Methods

getVersion
Retrieves the plugin version number. 

DOMString getVersion();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Plugin version

Exceptions:

  • WebAPIException

    • with error type SecurityError, if the application does not have the privilege to call this method.

Code example:


try {
  var value = webapis.microphone.getVersion();
  console.log(" version value = " + value);
} catch (error) {
  console.log(" error code = " + error.code);
}
isConnected
Checks whether a microphone is connected. 

boolean isConnected(DOMString uid);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • uid: Microphone unique ID

Return value:

Boolean value:
  • true: Connected
  • false: Disconnected

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

    • with error type SecurityError, if the application does not have the privilege to call this method.

Code example:


try {
  var flag = webapis.microphone.isConnected(uid);
  console.log(" microphone connected = " + flag);
} catch (error) {
  console.log(" error code = " + error.code);
}
getMicrophones
Retrieves a list of all connected microphones. 

void getMicrophones(MicrophoneDeviceArraySuccessCallback onsuccess, optional ErrorCallback ? onerror);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • onsuccess: Callback method to invoke when a connected microphone is found
  • onerror [optional]: Callback method to invoke if an error occurs

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

    • with error type SecurityError, if the application does not have the privilege to call this method.

Code example:


function onsuccess(mics)  {
  if(mics && mics.length > 0){
    for(var i = 0; i < mics.length; i++){
      if(mics[i]!=null){
        console.log( i + " " + mics[i]);
      }
    }
  }else{
    console.log("No microphone found. Check that a microphone is connected, and try again in a few seconds.");
  }
}

try {
  webapis.microphone.getMicrophones(onsuccess);
} catch (error) {
  console.log(" error code = " + error.code);
}
addMicrophoneConnectListener
Registers a microphone connection listener. 

unsigned long addMicrophoneConnectListener(MicrophoneConnectCallback listener);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • listener: MicrophoneConnectListener callback

Return value:

MicrophoneConnectCallback ID

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

    • with error type SecurityError, if the application does not have the privilege to call this method.

Code example:


var callback =  function(deviceInfo) {
  console.log("device name is " + deviceInfo.name);
  console.log("device uid is " + deviceInfo.uid);
  console.log("device eventType is " + deviceInfo.eventType);
}
try {
  var listenerId = webapis.microphone.addMicrophoneConnectListener(callback);
  console.log("listener id = " + listenerId);
} catch (error) {
  console.log(" error code = " + error.code);
}
removeMicrophoneConnectListener
Unregisters a microphone connection listener registered by addMicrophoneConnectListener. 

void removeMicrophoneConnectListener(unsigned long listenerId);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • listenerId: MicrophoneConnectCallback ID returned by addMicrophoneConnectListener

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

    • with error type SecurityError, if the application does not have the privilege to call this method.

Code example:


try {        webapis.microphone.removeMicrophoneConnectListener(listenerId);
  console.log("listener id = " + value);
} catch (error) {
  console.log(" error code = " + error.code);
}

1.3. MicrophoneDeviceArraySuccessCallback

Defines the device list callback. 

[Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneDeviceArraySuccessCallback {
  void onsuccess(MicrophoneDevice[] devices);
};

Methods

onsuccess
Callback method returning the device list. 

void onsuccess(MicrophoneDevice[] devices);

Parameters:

  • devices: MicrophoneDevice

Code example:


function onsuccess(devices)  {
  for (var i in devices)
  {
    console.log("SystemConfig devices = " + devices[i]);
  }
}

1.4. MicrophoneConnectCallback

Defines the microphone connection listener. 

[Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneConnectCallback {
  void onevent(MicrophoneConnectEvent event);
};

Methods

onsuccess
Callback method for microphone connection notifications. 

void onevent(MicrophoneConnectEvent event);

Parameters:

  • event: MicrophoneConnectEvent

Code example:


var onevent = function (event){
  console.log("changing event is = " + event);
}

1.5. MicrophoneConnectEvent

Defines microphone connection event structure. 

[NoInterfaceObject]interface MicrophoneConnectEvent {
  readonly attribute DOMString uid;
  readonly attribute DOMString name;
  readonly attribute unsigned long eventType;
};

Attributes

  • readonly DOMString uid
    Microphone UID
  • readonly DOMString name
    Microphone name
  • readonly unsigned short eventType
    Microphone event type

1.6. MicrophoneConnectEventType

Defines microphone connection event type. 

[NoInterfaceObject]interface MicrophoneConnectEventType {
  const unsigned long EVENT_DEVICE_CONNECT = 11;
  const unsigned long EVENT_DEVICE_DISCONNECT = 12;
};

Constants

  • EVENT_DEVICE_CONNECT
    Device connection
  • EVENT_DEVICE_DISCONNECT
    Device disconnection

1.7. MicrophoneSampleRateValue

Defines constants for sample rates. 

[NoInterfaceObject]interface MicrophoneSampleRateValue {
  const unsigned long MICROPHONE_SAMPLE_RATE_48000 = 48000;
  const unsigned long MICROPHONE_SAMPLE_RATE_44100 = 44100;
  const unsigned long MICROPHONE_SAMPLE_RATE_32000 = 32000;
  const unsigned long MICROPHONE_SAMPLE_RATE_16000 = 16000;
  const unsigned long MICROPHONE_SAMPLE_RATE_8000 = 8000;
};

Constants

  • MICROPHONE_SAMPLE_RATE_48000
    48 kHz, CD quality. Default format for audio input device.
  • MICROPHONE_SAMPLE_RATE_44100
    44.1 kHz
  • MICROPHONE_SAMPLE_RATE_32000
    32 kHz
  • MICROPHONE_SAMPLE_RATE_16000
    16 kHz
  • MICROPHONE_SAMPLE_RATE_8000
    8 kHz

1.8. MicrophoneDeviceAudioFormat

Defines constants for microphone device formats. 

[NoInterfaceObject]interface MicrophoneDeviceAudioFormat {
  const unsigned long MICROPHONE_FORMAT_SIGNED_16BIT_LITTLE_ENDIAN = 0;
  const unsigned long MICROPHONE_FORMAT_SIGNED_16BIT_BIG_ENDIAN_FORMAT = 1;
};

Constants

  • MICROPHONE_FORMAT_SIGNED_16BIT_LITTLE_ENDIAN
    Little endian format
  • MICROPHONE_FORMAT_SIGNED_16BIT_BIG_ENDIAN_FORMAT
    Big endian format

1.9. MicrophoneEffectValue

Defines constants for microphone effects. 

[NoInterfaceObject]interface MicrophoneEffectValue {
  const unsigned long MICROPHONE_EFFECT_NONE = 0x00;
  const unsigned long MICROPHONE_EFFECT_FILTER = 0x10;
};

Constants

  • MICROPHONE_EFFECT_NONE
    No effect
  • MICROPHONE_EFFECT_FILTER
    Filter effect

1.10. MicrophoneStateValue

Defines constants for microphone states. 

[NoInterfaceObject]interface MicrophoneStateValue {
  const unsigned long MICROPHONE_STATUS_STOP = 0x00000000;
  const unsigned long MICROPHONE_STATUS_PLAY = 0x00000001;
  const unsigned long MICROPHONE_STATUS_RECORD = 0x00000010;
  const unsigned long MICROPHONE_STATUS_FILTER = 0x00000100;
};

Constants

  • MICROPHONE_STATUS_STOP
    Stop state
  • MICROPHONE_STATUS_PLAY
    Play state
  • MICROPHONE_STATUS_RECORD
    Record state
  • MICROPHONE_STATUS_FILTER
    Filter state

1.11. MicrophoneAudioinputEvent

Defines constants for microphone input events. 

[NoInterfaceObject]interface MicrophoneAudioinputEvent {
  const unsigned long MICROPHONE_AUDIOINPUT_PLAY_FAIL = 400;
  const unsigned long MICROPHONE_AUDIOINPUT_DATA = 401;
  const unsigned long MICROPHONE_AUDIOINPUT_RECORD_FAIL = 402;
  const unsigned long MICROPHONE_AUDIOINPUT_RECORD_STOP = 403;
  const unsigned long MICROPHONE_AUDIOINPUT_FILTER_VOICE_DETECTED = 404;
  const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_START = 405;
  const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_STOP = 406;
  const unsigned long MICROPHONE_AUDIOINPUT_FILTER_SILENCE_DETECTED = 407;
  const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_VOLUME = 450;
};

Constants

  • MICROPHONE_AUDIOINPUT_PLAY_FAIL
    Failed to play
  • MICROPHONE_AUDIOINPUT_DATA
    Read
  • MICROPHONE_AUDIOINPUT_RECORD_FAIL
    Failed to record
  • MICROPHONE_AUDIOINPUT_RECORD_STOP
    Recording stopped due to the effect setting
  • MICROPHONE_AUDIOINPUT_FILTER_VOICE_DETECTED
    Voice detected
  • MICROPHONE_AUDIOINPUT_FILTER_PLAY_START
    Filtered playback started
  • MICROPHONE_AUDIOINPUT_FILTER_PLAY_STOP
    Filtered playback stopped
  • MICROPHONE_AUDIOINPUT_FILTER_SILENCE_DETECTED
    Silence detected
  • MICROPHONE_AUDIOINPUT_FILTER_PLAY_VOLUME
    Filtered playback volume changed

1.12. MicrophoneDevice

Provides methods for microphone device functionalities. 

  [NoInterfaceObject]interface MicrophoneDevice {
      readonly attribute DOMString uid;
      readonly attribute DOMString name;
      readonly attribute long deviceId;
      readonly attribute long deviceType;

      DOMString getUniqueId();
      unsigned long getDeviceId();
      DOMString getName();
      boolean enableDevice(unsigned long format, unsigned long sampleRate);
      boolean disableDevice();
      boolean stop(optional unsigned long ? state);
      boolean play(optional boolean ? lockState);
      unsigned long getVolumeLevel();
      boolean setVolumeLevel(unsigned long volume);
      unsigned long getSupportedEffect();
      unsigned long getEnabledEffect();
      boolean setEffect(unsigned long effect, boolean enable, optional unsigned long ? tempo, optional unsigned long ? pitch, optional unsigned long ? rate, optional unsigned long ? threshold, optional unsigned long ? noduration);
      unsigned long getFilterVolume();
      unsigned long addMicrophoneEventListener(MicrophoneEventCallback listener);
      void removeMicrophoneEventListener(unsigned long listenerId);
  };

Attributes

  • readonly DOMString uid
    Device UID
  • readonly DOMString name
    Device name
  • readonly long deviceId
    Microphone Device ID
  • readonly long deviceType
    Microphone device type

Methods

getUniqueId
Retrieves the unique ID. 

DOMString getUniqueId();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Device UID

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.getUniqueId();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
getDeviceId
Retrieves the device ID. 

unsigned long getDeviceId();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Device ID

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.getDeviceId();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
getName
Retrieves the device name. 

DOMString getName();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Device name

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.getName();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
enableDevice
Enables the microphone device. 

boolean enableDevice(MicrophoneDeviceAudioFormat format, MicrophoneSampleRateValue sampleRate);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • format: Microphone format
  • sampleRate: Microphone sample rate

Return value:

Boolean value:
  • true: Success
  • false: Failure

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.enableDevice(webapis.microphone.MICROPHONE_FORMAT_SIGNED_16BIT_LITTLE_ENDIAN,webapis.microphone.MICROPHONE_SAMPLE_RATE_48000);
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
disableDevice
Disables a microphone device. 

boolean disableDevice();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Boolean value:
  • true: Success
  • false: Failure

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.disableDevice();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
stop
Stops the microphone. 

boolean stop(optional MicrophoneStateValue ? state);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • state [optional]: Microphone state

Return value:

Boolean value:
  • true: Success
  • false: Failure

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.stop(webapis.microphone.MICROPHONE_STATUS_PLAY | webapis.microphone.MICROPHONE_STATUS_RECORD);
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
play
Plays the microphone. 

boolean play(optional boolean ? lockState);

Since : 2.3

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • lockState [optional]: Ignore if Tizen

Return value:

Boolean value:
  • true: Success
  • false: Failure

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.play();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
getVolumeLevel
Retrieves the volume level. 

unsigned long getVolumeLevel();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

volume level

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.getVolumeLevel();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
setVolumeLevel
Sets the volume level. 

boolean setVolumeLevel(unsigned long volume);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • volume: Volume level

Return value:

Boolean value:
  • true: Success
  • false: Failure

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var volume = 50;
      var value = device.setVolumeLevel(volume);
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
getSupportedEffect
Retrieves the supported effects. 

MicrophoneEffectValue getSupportedEffect();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Microphone effect

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var effects = device.getSupportedEffect();
      if(effects == webapis.microphone.MICROPHONE_EFFECT_NONE) {
        console.log("No effects supported");
      }
      else {
        if(effects & webapis.microphone.MICROPHONE_EFFECT_FILTER) {
          console.log("FILTER effect supported");
        }
      }
    } catch (error) {
      console.log("error code = " + error.code);
    }
  }
});
getEnabledEffect
Retrieves the enabled effects. 

MicrophoneEffectValue getEnabledEffect();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Microphone effect

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var effects = device.getEnabledEffect();
      if(effects == webapis.microphone.MICROPHONE_EFFECT_NONE) {
        console.log("No effects enabled");
      }
      else {
        if(effects & webapis.microphone.MICROPHONE_EFFECT_FILTER) {
          console.log("FILTER effect enabled");
        }
      }
    } catch (error) {
      console.log("error code = " + error.code);
    }
  }
});
setEffect
Sets a microphone effect. 

boolean setEffect(MicrophoneEffectValue effect, boolean enable, optional unsigned long ? tempo, optional unsigned long ? pitch, optional unsigned long ? rate, optional unsigned long ? threshold, optional unsigned long ? noduration);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • effect: Microphone effect
  • enable: If true, enable the effect. If false, disable the effect.
  • tempo [optional]: If filter is enabled, microphone tempo
  • pitch [optional]: If filter is enabled, microphone pitch
  • rate [optional]: If filter is enabled, microphone rate
  • threshold [optional]: Threshold below which to ignore sounds
  • noduration [optional]: Silence duration before playing the filtered voice

Return value:

Boolean value:
  • true: Success
  • false: Failure

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var flag = device.setEffect(webapis.microphone.MICROPHONE_EFFECT_FILTER, true, Number(tempo), Number(pitch), Number(rate), Number(threshold), Number(noduration));
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
getFilterVolume
Retrieves the filter volume. 

unsigned long getFilterVolume();

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Return value:

Filter volume

Code example:


webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var value = device.getFilterVolume();
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
addMicrophoneEventListener
Registers a microphone event listener. 

unsigned long addMicrophoneEventListener(MicrophoneEventCallback listener);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • listener : MicrophoneEventListener callback

Return value:

MicrophoneEventCallback ID

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


var onevent =  function(eventType) {
  console.log("eventType is " + eventType);
}
webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var listenerId = device.addMicrophoneEventListener(onevent);
      console.log("listener id = " + listenerId);
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});
removeMicrophoneEventListener
Unregisters a microphone event listener registered by addMicrophoneEventListener. 

void removeMicrophoneEventListener(unsigned long listenerId);

Privilege level: public

Privilege: http://developer.samsung.com/privilege/microphone

Parameters:

  • listenerId : MicrophoneEventCallback ID returned by addMicrophoneEventListener.

Exceptions:

  • WebAPIException

    • with error type TypeMismatchError, if an input parameter is not compatible with its expected type.

Code example:


var onevent =  function(eventType) {
  console.log("eventType is " + eventType);
}
webapis.microphone.getMicrophones(function(mics){
  if (mics && mics.length > 0) {
    var device = mics[0];
    try {
      var listenerId = device.addMicrophoneEventListener(onevent);
      device.removeMicrophoneEventListener(listenerId);
    } catch (error) {
      console.log(" error code = " + error.code);
    }
  }
});

1.13. MicrophoneEventCallback

Defines a listener for device events. 

  [Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneEventCallback {
      void onevent(unsigned long eventType);
  };

Since : 2.3

Methods

onevent
Callback method for microphone event notifications. 

void onevent(MicrophoneConnectEventType eventType);

Parameters:

  • eventType: unsigned long

Code example:


var onevent = function (eventType){
  console.log(" onevent eventType is = " + eventType);
}

2. Full WebIDL


module Microphone {
  [NoInterfaceObject]interface MicrophoneManagerObject {
    readonly attribute MicrophoneManager microphone;
  };

  WebApi implements MicrophoneManagerObject;

  [NoInterfaceObject]interface MicrophoneManager {
    DOMString getVersion();
    boolean isConnected(DOMString uid);
    void getMicrophones(MicrophoneDeviceArraySuccessCallback onsuccess, optional ErrorCallback ? onerror);
    unsigned long addMicrophoneConnectListener(MicrophoneConnectCallback listener);
    void removeMicrophoneConnectListener(unsigned long listenerId);
  };

  [Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneDeviceArraySuccessCallback {
    void onsuccess(MicrophoneDevice[] devices);
  };

  [Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneConnectCallback {
    void onevent(MicrophoneConnectEvent event);
  };

  [NoInterfaceObject]interface MicrophoneConnectEvent {
    readonly attribute DOMString uid;
    readonly attribute DOMString name;
    readonly attribute unsigned long eventType;
  };

  [NoInterfaceObject]interface MicrophoneConnectEventType {
    const unsigned long EVENT_DEVICE_CONNECT = 11;
    const unsigned long EVENT_DEVICE_DISCONNECT = 12;
  };

  [NoInterfaceObject]interface MicrophoneSampleRateValue {
    const unsigned long MICROPHONE_SAMPLE_RATE_48000 = 48000;
    const unsigned long MICROPHONE_SAMPLE_RATE_44100 = 44100;
    const unsigned long MICROPHONE_SAMPLE_RATE_32000 = 32000;
    const unsigned long MICROPHONE_SAMPLE_RATE_16000 = 16000;
    const unsigned long MICROPHONE_SAMPLE_RATE_8000 = 8000;
  };

  [NoInterfaceObject]interface MicrophoneDeviceAudioFormat {
    const unsigned long MICROPHONE_FORMAT_SIGNED_16BIT_LITTLE_ENDIAN = 0;
    const unsigned long MICROPHONE_FORMAT_SIGNED_16BIT_BIG_ENDIAN_FORMAT = 1;
  };

  [NoInterfaceObject]interface MicrophoneEffectValue {
    const unsigned long MICROPHONE_EFFECT_NONE = 0x00;
    const unsigned long MICROPHONE_EFFECT_FILTER = 0x10;
  };

  [NoInterfaceObject]interface MicrophoneStateValue {
    const unsigned long MICROPHONE_STATUS_STOP = 0x00000000;
    const unsigned long MICROPHONE_STATUS_PLAY = 0x00000001;
    const unsigned long MICROPHONE_STATUS_RECORD = 0x00000010;
    const unsigned long MICROPHONE_STATUS_FILTER = 0x00000100;
  };

  [NoInterfaceObject]interface MicrophoneAudioinputEvent {
    const unsigned long MICROPHONE_AUDIOINPUT_PLAY_FAIL = 400;
    const unsigned long MICROPHONE_AUDIOINPUT_DATA = 401;
    const unsigned long MICROPHONE_AUDIOINPUT_RECORD_FAIL = 402;
    const unsigned long MICROPHONE_AUDIOINPUT_RECORD_STOP = 403;
    const unsigned long MICROPHONE_AUDIOINPUT_FILTER_VOICE_DETECTED = 404;
    const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_START = 405;
    const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_STOP = 406;
    const unsigned long MICROPHONE_AUDIOINPUT_FILTER_SILENCE_DETECTED = 407;
    const unsigned long MICROPHONE_AUDIOINPUT_FILTER_PLAY_VOLUME = 450;
  };

  [NoInterfaceObject]interface MicrophoneDevice {
    readonly attribute DOMString uid;
    readonly attribute DOMString name;
    readonly attribute long deviceId;
    readonly attribute long deviceType;

    DOMString getUniqueId();
    unsigned long getDeviceId();
    DOMString getName();
    boolean enableDevice(MicrophoneDeviceAudioFormat format, MicrophoneSampleRateValue sampleRate);
    boolean disableDevice();
    boolean stop(optional MicrophoneStateValue ? state);
    boolean play(optional boolean ? lockState);
    unsigned long getVolumeLevel();
    boolean setVolumeLevel(unsigned long volume);
    MicrophoneEffectValue getSupportedEffect();
    MicrophoneEffectValue getEnabledEffect();
    boolean setEffect(MicrophoneEffectValue effect, boolean enable, optional unsigned long ? tempo, optional unsigned long ? pitch, optional unsigned long ? rate, optional unsigned long ? threshold, optional unsigned long ? noduration);
    unsigned long getFilterVolume();
    unsigned long addMicrophoneEventListener(MicrophoneEventCallback listener);
    void removeMicrophoneEventListener(unsigned long listenerId);
  };

  [Callback = FunctionOnly, NoInterfaceObject]interface MicrophoneEventCallback {
    void onevent(MicrophoneConnectEventType eventType);
  };
};