1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/**
* Copyright 2003 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and
* redistribution of this file, and for a DISCLAIMER OF ALL
* WARRANTIES.
*/
import java.io.File;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Locale;
import javax.speech.Central;
import javax.speech.Engine;
import javax.speech.EngineException;
import javax.speech.synthesis.Synthesizer;
import javax.speech.synthesis.SynthesizerModeDesc;
import javax.speech.synthesis.SynthesizerProperties;
import javax.speech.synthesis.Voice;
/**
* Provides text-to-speech server for Emacspeak.
*/
public class EmacspeakServer extends TTSServer {
// synthesizer related variables
private Synthesizer synthesizer;
private String voiceName;
private Voice voice;
/**
* Constructs a EmacspeakServer.
*/
public EmacspeakServer(String voiceName) {
loadSynthesizer(voiceName);
}
/**
* Creates and loads the synthesizer.
*/
private void loadSynthesizer(String voiceName) {
voice = new Voice(voiceName,
Voice.GENDER_DONT_CARE,
Voice.AGE_DONT_CARE,
null);
SynthesizerModeDesc modeDesc = new SynthesizerModeDesc(
null, "general", Locale.US, null, null);
try {
synthesizer = Central.createSynthesizer(modeDesc);
if (synthesizer == null) {
System.err.println(noSynthesizerMessage());
System.exit(1);
}
synthesizer.allocate();
synthesizer.resume();
synthesizer.getSynthesizerProperties().setVolume(1.0f);
synthesizer.getSynthesizerProperties().setVoice(voice);
} catch (Exception e) {
System.out.println("Error creating synthesizer");
System.exit(1);
}
}
/**
* Returns a "no synthesizer" message, and asks
* the user to check if the "speech.properties" file is
* at <code>user.home</code> or <code>java.home/lib</code>.
*
* @return a no synthesizer message
*/
static private String noSynthesizerMessage() {
String message =
"No synthesizer created. This may be the result of any\n" +
"number of problems. It's typically due to a missing\n" +
"\"speech.properties\" file that should be at either of\n" +
"these locations: \n\n";
message += "user.home : " + System.getProperty("user.home") + "\n";
message += "java.home/lib: " + System.getProperty("java.home") +
File.separator + "lib\n\n" +
"Another cause of this problem might be corrupt or missing\n" +
"voice jar files in the freetts lib directory. This problem\n" +
"also sometimes arises when the freetts.jar file is corrupt\n" +
"or missing. Sorry about that. Please check for these\n" +
"various conditions and then try again.\n";
return message;
}
/**
* Spawns a ProtocolHandler depending on the current protocol.
*
* @param socket the socket that the spawned protocol handler will use
*/
protected void spawnProtocolHandler(Socket socket) {
try {
JSAPIEmacspeakHandler handler =
new JSAPIEmacspeakHandler(socket, synthesizer);
(new Thread(handler)).start();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Sets the speaking rate of the voice.
*
* @param wpm the speaking rate (words per minute)
*/
public void setRate(float wpm) {
try {
synthesizer.getSynthesizerProperties().setSpeakingRate(wpm);
} catch (java.beans.PropertyVetoException e) {
// ignore and do nothing
}
}
/**
* Starts this TTS Server.
*/
public static void main(String[] args) {
String voiceName = (args.length > 0)
? args[0]
: "kevin16";
System.out.println();
System.out.println("Using voice: " + voiceName);
System.out.println();
EmacspeakServer server = new EmacspeakServer(voiceName);
if (args.length > 1) {
float wpm = Float.parseFloat(args[1]);
server.setRate(wpm);
}
(new Thread(server)).start();
}
}
|
