Voice


public class Voice
extends Object implements Parcelable

java.lang.Object
   ↳ android.speech.tts.Voice


Characteristics and features of a Text-To-Speech Voice. Each TTS Engine can expose multiple voices for each locale, with different set of features.

Summary

Constants

int LATENCY_HIGH

Network based expected synthesizer latency (~200ms)

int LATENCY_LOW

Low expected synthesizer latency (~20ms)

int LATENCY_NORMAL

Normal expected synthesizer latency (~50ms)

int LATENCY_VERY_HIGH

Very slow network based expected synthesizer latency (> 200ms)

int LATENCY_VERY_LOW

Very low expected synthesizer latency (< 20ms)

int QUALITY_HIGH

High, human-like quality of speech synthesis

int QUALITY_LOW

Low, not human-like quality of speech synthesis

int QUALITY_NORMAL

Normal quality of speech synthesis

int QUALITY_VERY_HIGH

Very high, almost human-indistinguishable quality of speech synthesis

int QUALITY_VERY_LOW

Very low, but still intelligible quality of speech synthesis

Inherited constants

Fields

public static final Creator<Voice> CREATOR

Public constructors

Voice(String name, Locale locale, int quality, int latency, boolean requiresNetworkConnection, Set<String> features)

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

Set<String> getFeatures()

Returns the set of features it supports for a given voice.

int getLatency()
Locale getLocale()
String getName()
int getQuality()
int hashCode()

Returns a hash code value for the object.

boolean isNetworkConnectionRequired()
String toString()

Returns a string representation of the object.

void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Inherited methods

Constants

LATENCY_HIGH

Added in API level 21
public static final int LATENCY_HIGH

Network based expected synthesizer latency (~200ms)

Constant Value: 400 (0x00000190)

LATENCY_LOW

Added in API level 21
public static final int LATENCY_LOW

Low expected synthesizer latency (~20ms)

Constant Value: 200 (0x000000c8)

LATENCY_NORMAL

Added in API level 21
public static final int LATENCY_NORMAL

Normal expected synthesizer latency (~50ms)

Constant Value: 300 (0x0000012c)

LATENCY_VERY_HIGH

Added in API level 21
public static final int LATENCY_VERY_HIGH

Very slow network based expected synthesizer latency (> 200ms)

Constant Value: 500 (0x000001f4)

LATENCY_VERY_LOW

Added in API level 21
public static final int LATENCY_VERY_LOW

Very low expected synthesizer latency (< 20ms)

Constant Value: 100 (0x00000064)

QUALITY_HIGH

Added in API level 21
public static final int QUALITY_HIGH

High, human-like quality of speech synthesis

Constant Value: 400 (0x00000190)

QUALITY_LOW

Added in API level 21
public static final int QUALITY_LOW

Low, not human-like quality of speech synthesis

Constant Value: 200 (0x000000c8)

QUALITY_NORMAL

Added in API level 21
public static final int QUALITY_NORMAL

Normal quality of speech synthesis

Constant Value: 300 (0x0000012c)

QUALITY_VERY_HIGH

Added in API level 21
public static final int QUALITY_VERY_HIGH

Very high, almost human-indistinguishable quality of speech synthesis

Constant Value: 500 (0x000001f4)

QUALITY_VERY_LOW

Added in API level 21
public static final int QUALITY_VERY_LOW

Very low, but still intelligible quality of speech synthesis

Constant Value: 100 (0x00000064)

Fields

CREATOR

Added in API level 21
public static final Creator<Voice> CREATOR

Public constructors

Voice

Added in API level 21
public Voice (String name, 
                Locale locale, 
                int quality, 
                int latency, 
                boolean requiresNetworkConnection, 
                Set<String> features)

Parameters
name String

locale Locale

quality int

latency int

requiresNetworkConnection boolean

features Set

Public methods

describeContents

Added in API level 21
public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

equals

Added in API level 21
public boolean equals (Object obj)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
obj Object: This value may be null.

Returns
boolean true if this object is the same as the obj argument; false otherwise.

getFeatures

Added in API level 21
public Set<String> getFeatures ()

Returns the set of features it supports for a given voice. Features can either be framework defined, e.g. TextToSpeech.Engine#KEY_FEATURE_NETWORK_TIMEOUT_MS or engine specific. Engine specific keys must be prefixed by the name of the engine they are intended for. These keys can be used as parameters to TextToSpeech#speak(String, int, java.util.HashMap) and TextToSpeech#synthesizeToFile(String, java.util.HashMap, String). Features values are strings and their values must met restrictions described in their documentation.

Returns
Set<String> Set instance. May return null on error.

getLatency

Added in API level 21
public int getLatency ()

Returns
int The voice's latency (lower is better)

getLocale

Added in API level 21
public Locale getLocale ()

Returns
Locale The voice's locale

getName

Added in API level 21
public String getName ()

Returns
String Unique voice name.

getQuality

Added in API level 21
public int getQuality ()

Returns
int The voice's quality (higher is better)

hashCode

Added in API level 21
public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int a hash code value for this object.

isNetworkConnectionRequired

Added in API level 21
public boolean isNetworkConnectionRequired ()

Returns
boolean Does the Voice require a network connection to work.

toString

Added in API level 21
public String toString ()

Returns a string representation of the object.

Returns
String a string representation of the object.

writeToParcel

Added in API level 21
public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest Parcel: The Parcel in which the object should be written. This value cannot be null.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES