US5933804A
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Extensible speech recognition system that provides a user with audio feedback
Assignee: Microsoft Technology Licensing LLC
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Filing: 1997-04-10
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Granted: 1999-08-03
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Expires: 2017-04-10
Abstract
Abstract A speech recognition system is extensible in that new terms may be added to a list of terms that are recognized by the speech recognition system. The speech recognition system provides audio feedback when new terms are added so that a user may hear how the system expects the word to be pronounced. The user may then accept the pronunciation or provide his own pronunciation. The user may also selectively change the pronunciation of words to avoid misrecognitions by the system. The system may provide appropriate user interface elements for enabling a user to change the pronunciation of words. The system may also include intelligence for automatically changing the pronunciation of words used in recognition based upon empirically derived information.
Inventors
- 👤 Xuedong D. Huang
- 👤 Michael J. Rozak
- 👤 Li Jiang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:15
CPC Classifications
G; G10; G10L; G10L15/00; G10L15/06; G10L15/063; G10L2015/0638
Claims Analysis
Total Claims: 65
Claim 1
Independent Claim
139 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a method comprising the computer-implemented steps of: providing a text-to-speech mechanism for creating a spoken version of text; for a given word of text, using the text-to-speech mechanism to generate a spoken version of the given word; outputting the spoken version of the given word on the audio output device so that a user of the speech recognition system knows how the speech recognition system expects the given word to be pronounced; and providing a user interface element for a user to request a different pronunciation of the given word and wherein the spoken version of the given word is output in response to the user requesting the different pronunciation of the given word via the user interface element.
Claim 2
Dependent Claim
139 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a method comprising the computer-implemented steps of: providing a text-to-speech mechanism for creating a spoken version of text; for a given word of text, using the text-to-speech mechanism to generate a spoken version of the given word; outputting the spoken version of the given word on the audio output device so that a user of the speech recognition system knows how the speech recognition system expects the given word to be pronounced; and providing a user interface element for a user to request a different pronunciation of the given word and wherein the spoken version of the given word is output in response to the user requesting the different pronunciation of the given word via the user interface element.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the user interface element is an activatable button that the user activates to request a proper pronunciation of a portion of text.
Claim 4
Dependent Claim
65 words
The method of claim 1 wherein the speech recognition system includes a list of words that the speech recognition system recognizes and a mechanism for the user to add words to the list and wherein the using step and the outputting step are triggered by the user adding a new word to the list such that a spoken version of the new word is output.
Claim 5
Dependent Claim
27 words
The method of claim 1, further comprising the step of receiving the textual representation of the given word from the user prior to using the text-to-speech mechanism.
Claim 6
Dependent Claim
61 words
The method of claim 1, further comprising the steps of: receiving a designation of a different spoken version of the given word from the user as a proper pronunciation of the given word; and modifying how the speech recognition system expects the given word to be pronounced to reflect the different spoken versions of the given word designated by the user.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein the speech recognition system is used in a dictation system for converting spoken speech into text.
Claim 8
Dependent Claim
42 words
The method of claim 1 wherein the speech recognition system has at least one expected pronunciation for the given word and the spoken version of the given word generated by the text-to-speech mechanism corresponds to the expected pronunciation of the given word.
Claim 9
Dependent Claim
98 words
In a computer-implemented dictation system for converting spoken input from a user into text, a method comprising the steps of: providing a list of pronunciation for words that are recognized by the dictation system; providing an audible current pronunciation of a selected word stored in the list; receiving a request from a user to change the current pronunciation of the selected word that is stored in the list to a new pronunciation, said request specifying the new pronunciation; and changing the pronunciation stored in the list for the selected word from the current pronunciation to the new pronunciation.
Claim 10
Dependent Claim
98 words
In a computer-implemented dictation system for converting spoken input from a user into text, a method comprising the steps of: providing a list of pronunciation for words that are recognized by the dictation system; providing an audible current pronunciation of a selected word stored in the list; receiving a request from a user to change the current pronunciation of the selected word that is stored in the list to a new pronunciation, said request specifying the new pronunciation; and changing the pronunciation stored in the list for the selected word from the current pronunciation to the new pronunciation.
Claim 11
Dependent Claim
30 words
The method of claim 8, further comprising the step of providing a user interface through which the user makes the request to change the current pronunciation of the selected word.
Claim 12
Dependent Claim
24 words
The method of claim 9 wherein the user interface enables a user to spell out the new pronunciation of the selected word with letters.
Claim 13
Dependent Claim
37 words
The method of claim 8 wherein the dictation system includes an audio output device and wherein the step of providing an audible current pronunciation of the selected word to the user is performed before receiving the request.
Claim 14
Dependent Claim
132 words
The method of claim 8 wherein the dictation system includes an audio output device and wherein receiving the request step further comprises the steps of: receiving a text string that specifies what the user believes the new pronunciation of the selected word sounds like; providing a user interface element for a user to hear how the dictation system envisions the text string sounding like; providing a text-to-speech engine for converting text into speech having an associated pronunciation; using the text-to-speech engine to output speech for the text string on the audio output device in response to the user using the user interface element; and generating the request in response to the user accepting the speech generated by the text-to-speech engine for the text string as a proper pronunciation of the selected word.
Claim 15
Dependent Claim
36 words
The method of claim 12, further comprising the step of providing an additional user interface element for the user to accept or reject the pronunciation associated with the speech that is output by the text-to-speech engine.
Claim 16
Dependent Claim
114 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a method comprising the steps of: providing a dictionary of terms that the speech recognition system recognizes, said dictionary specifying how the speech recognition system expects each term to be pronounced; receiving a request from a user to add a new term to the dictionary; generating a pronunciation for the new term by the speech recognition system; outputting the pronunciation for the new term on the audio output device so a user can observe and change the pronunciation for the new term; and adding the new term and the generated pronunciation to the dictionary.
Claim 17
Dependent Claim
114 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a method comprising the steps of: providing a dictionary of terms that the speech recognition system recognizes, said dictionary specifying how the speech recognition system expects each term to be pronounced; receiving a request from a user to add a new term to the dictionary; generating a pronunciation for the new term by the speech recognition system; outputting the pronunciation for the new term on the audio output device so a user can observe and change the pronunciation for the new term; and adding the new term and the generated pronunciation to the dictionary.
Claim 18
Dependent Claim
34 words
The method of claim 14 wherein the speech recognition system includes a text-to-speech engine for converting text into speech and wherein the text-to-speech engine is used to output the pronunciation of the new term.
Claim 19
Dependent Claim
22 words
The method of claim 15 wherein the text-to-speech engine uses letter-to-sound rules are used to generate the pronunciation for the new term.
Claim 20
Dependent Claim
28 words
The method of claim 14 wherein the method further comprises the step of prompting the user to verify that the generated pronunciation of the new term is correct.
Claim 21
Dependent Claim
43 words
The method of claim 17 wherein when the user verifies that the generated pronunciation of the new term is not correct, receiving a designation of a proper pronunciation for the new term from the user and adding the proper pronunciation to the dictionary.
Claim 22
Dependent Claim
93 words
In a computer-implemented speech recognition system for recognizing speech spoken from a speaker, said system including an audio output device and a text-to-speech engine for generating speech from text, a method comprising the steps of: storing multiple pronunciations for a selected word in a dictionary that is used by the text-to-speech engine; outputting each of the pronunciations on the audio output device so that a user can hear the pronunciations; and in response to a user selecting one of the pronunciations, using the selected pronunciation by the speech recognition system to recognize speech.
Claim 23
Dependent Claim
93 words
In a computer-implemented speech recognition system for recognizing speech spoken from a speaker, said system including an audio output device and a text-to-speech engine for generating speech from text, a method comprising the steps of: storing multiple pronunciations for a selected word in a dictionary that is used by the text-to-speech engine; outputting each of the pronunciations on the audio output device so that a user can hear the pronunciations; and in response to a user selecting one of the pronunciations, using the selected pronunciation by the speech recognition system to recognize speech.
Claim 24
Dependent Claim
25 words
The method of claim 19 wherein the speech recognition system is used in a dictation system that converts speech spoken by a speaker into text.
Claim 25
Dependent Claim
137 words
In a computer-implemented speech recognition system for recognizing speech from a speaker, a method comprising the steps of: providing a dictionary of terms having pronunciations for the terms that correspond with how the speech recognition system expects the terms to be pronounced; performing a heuristic to derive alternative pronunciations for the terms; on multiple instances where the speaker speaks a selected one of terms such that the speech recognition system recognizes the selected term, determining which of the alternative pronunciations of the selected terms the user used; and based on the determining step, identifying which of the alternative pronunciations of the selected term the user is most likely using and updating the dictionary to designate the pronunciation that the user is most likely using as how the speech recognition system expects the selected term to be pronounced.
Claim 26
Dependent Claim
137 words
In a computer-implemented speech recognition system for recognizing speech from a speaker, a method comprising the steps of: providing a dictionary of terms having pronunciations for the terms that correspond with how the speech recognition system expects the terms to be pronounced; performing a heuristic to derive alternative pronunciations for the terms; on multiple instances where the speaker speaks a selected one of terms such that the speech recognition system recognizes the selected term, determining which of the alternative pronunciations of the selected terms the user used; and based on the determining step, identifying which of the alternative pronunciations of the selected term the user is most likely using and updating the dictionary to designate the pronunciation that the user is most likely using as how the speech recognition system expects the selected term to be pronounced.
Claim 27
Dependent Claim
16 words
The method of claim 21 wherein the CART algorithm is applied to derive the alternative pronunciations.
Claim 28
Dependent Claim
132 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having an output device, a method comprising the steps of: receiving a spoken version of a term having a given pronunciation from the speaker; providing an expected pronunciation for the term that corresponds to how the speech recognition system expects the speaker to speak the term; comparing the given pronunciation of the spoken version of the term with the expected pronunciation of the term to determine a degree of difference between the given pronunciation of the spoken version of the term and the expected pronunciation of the term; and where the degree of difference exceeds an acceptable predetermined threshold, generating output on the output device to inform the speaker that the degree of difference exceeds the threshold.
Claim 29
Dependent Claim
132 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having an output device, a method comprising the steps of: receiving a spoken version of a term having a given pronunciation from the speaker; providing an expected pronunciation for the term that corresponds to how the speech recognition system expects the speaker to speak the term; comparing the given pronunciation of the spoken version of the term with the expected pronunciation of the term to determine a degree of difference between the given pronunciation of the spoken version of the term and the expected pronunciation of the term; and where the degree of difference exceeds an acceptable predetermined threshold, generating output on the output device to inform the speaker that the degree of difference exceeds the threshold.
Claim 30
Dependent Claim
21 words
The method of claim 23 wherein the speech recognition system is used in a dictation system for generating text from speech.
Claim 31
Dependent Claim
21 words
The method of claim 23 wherein the output device is an audio output device and wherein the output is audio output.
Claim 32
Dependent Claim
21 words
The method of claim 23 wherein the output device is a video output device and wherein the output is video output.
Claim 33
Dependent Claim
24 words
The method of claim 23 wherein the system includes a text-to-speech mechanism and wherein the text-to-speech mechanism generates a spoken version of the term.
Claim 34
Dependent Claim
147 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the computer-implemented steps of: providing a text-to-speech mechanism for creating a spoken version of text; for a given word of text, using the text-to-speech mechanism to generate a spoken version of the given word; outputting the spoken version of the given word on the audio output device so that a user of the speech recognition system knows how the speech recognition system expects the given word to be pronounced; and providing a user interface element for a user to request a proper pronunciation of the given word and wherein the spoken version of the given word is output in response to the user requesting the proper pronunciation of the given word via the user interface element.
Claim 35
Dependent Claim
147 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the computer-implemented steps of: providing a text-to-speech mechanism for creating a spoken version of text; for a given word of text, using the text-to-speech mechanism to generate a spoken version of the given word; outputting the spoken version of the given word on the audio output device so that a user of the speech recognition system knows how the speech recognition system expects the given word to be pronounced; and providing a user interface element for a user to request a proper pronunciation of the given word and wherein the spoken version of the given word is output in response to the user requesting the proper pronunciation of the given word via the user interface element.
Claim 36
Dependent Claim
29 words
The computer-readable medium of claim 28 wherein the user interface element is an activatable button that the user activates to request a proper pronunciation of a portion of text.
Claim 37
Dependent Claim
66 words
The computer-readable medium of claim 28 wherein the speech recognition system includes a list of words that the speech recognition system recognizes and a mechanism for the user to add words to the list and wherein the using step and the outputting step are triggered by the user adding a new word to the list such that a spoken version of the new word is output.
Claim 38
Dependent Claim
65 words
The computer-readable medium of claim 28 wherein the method further comprises the steps of: receiving a designation of a different spoken version of the given word from the user as a proper pronunciation of the given word; and modifying how the speech recognition system expects the given word to be pronounced to reflect the different spoken versions of the given word designated by the user.
Claim 39
Dependent Claim
23 words
The computer-readable medium of claim 28 wherein the speech recognition system is used in a dictation system for converting spoken speech into text.
Claim 40
Dependent Claim
43 words
The computer-readable medium of claim 28 wherein the speech recognition system has at least one expected pronunciation for the given word and the spoken version of the given word generated by the text-to-speech mechanism corresponds to the expected pronunciation of the given word.
Claim 41
Dependent Claim
106 words
In a computer-implemented dictation system for converting spoken input from a user into text, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a list of pronunciations for words that are recognized by the dictation system; providing an audible current pronunciation of a selected word stored in the list; receiving a request from a user to change the current pronunciation of the selected word that is stored in the list to a new pronunciation, said request specifying the new pronunciation; and changing the pronunciation stored in the list for the selected word from the current pronunciation to the new pronunciation.
Claim 42
Dependent Claim
106 words
In a computer-implemented dictation system for converting spoken input from a user into text, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a list of pronunciations for words that are recognized by the dictation system; providing an audible current pronunciation of a selected word stored in the list; receiving a request from a user to change the current pronunciation of the selected word that is stored in the list to a new pronunciation, said request specifying the new pronunciation; and changing the pronunciation stored in the list for the selected word from the current pronunciation to the new pronunciation.
Claim 43
Dependent Claim
34 words
The computer-readable medium of claim 34 wherein the method further comprises the step of providing a user interface through which the user makes the request to change the current pronunciation of the selected word.
Claim 44
Dependent Claim
25 words
The computer-readable medium of claim 35 wherein the user interface enables a user to spell out the new pronunciation of the selected word with letters.
Claim 45
Dependent Claim
44 words
The computer-readable medium of claim 34 wherein the dictation system includes an audio output device and wherein the method further comprises the step of outputting the current pronunciation of the selected word to the user with the audio output device before receiving the request.
Claim 46
Dependent Claim
134 words
The computer-readable medium of claim 34 wherein the dictation system includes an audio output device and wherein the receiving the request step further comprises the steps of: receiving a text string that specifies what the user believes the new pronunciation of the selected word sounds like; providing a user interface element for a user to hear how the dictation system envisions the text string sounding like; providing a text-to-speech engine for converting text into speech having an associated pronunciation; using the text-to-speech engine to output speech for the text string on the audio output device in response to the user using the user interface element; and generating the request in response to the user accepting the speech generated by the text-to-speech engine for the text string as a proper pronunciation of the selected word.
Claim 47
Dependent Claim
122 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a dictionary of terms that the speech recognition system recognizes, said dictionary specifying how the speech recognition system expects each term to be pronounced; receiving a request from a user to add a new term to the dictionary; generating a pronunciation for the new term by the speech recognition system; outputting the pronunciation for the new term on the audio output device so a user can observe and change the pronunciation for the new term; and adding the new term and the generated pronunciation to the dictionary.
Claim 48
Dependent Claim
122 words
In a computer-implemented speech recognition system that recognizes speech input from a speaker and that includes an audio output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a dictionary of terms that the speech recognition system recognizes, said dictionary specifying how the speech recognition system expects each term to be pronounced; receiving a request from a user to add a new term to the dictionary; generating a pronunciation for the new term by the speech recognition system; outputting the pronunciation for the new term on the audio output device so a user can observe and change the pronunciation for the new term; and adding the new term and the generated pronunciation to the dictionary.
Claim 49
Dependent Claim
37 words
The computer-readable medium of claim 39 wherein the speech recognition system includes letter-to-sound rules for converting textual letters into sounds and wherein the letter-to-sound rules and/or dictionary are used to generate the pronunciation of the new term.
Claim 50
Dependent Claim
29 words
The computer-readable medium of claim 39 wherein the method further comprises the step of prompting the user to verify that the generated pronunciation of the new term is correct.
Claim 51
Dependent Claim
44 words
The computer-readable medium of claim 41 wherein when the user verifies that the generated pronunciation of the new term is not correct, receiving a designation of a proper pronunciation for the new term from the user and adding the proper pronunciation to the dictionary.
Claim 52
Dependent Claim
101 words
In a computer-implemented speech recognition system for recognizing speech spoken from a speaker, said system including an audio output device and a text-to-speech engine for generating speech from text, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: storing multiple pronunciations for a selected word in a dictionary that is used by the text-to-speech engine; outputting each of the pronunciations on the audio output device so that a user can hear the pronunciations; and in response to a user selecting one of the pronunciations, using the selected pronunciation by the speech recognition system to recognize speech.
Claim 53
Dependent Claim
101 words
In a computer-implemented speech recognition system for recognizing speech spoken from a speaker, said system including an audio output device and a text-to-speech engine for generating speech from text, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: storing multiple pronunciations for a selected word in a dictionary that is used by the text-to-speech engine; outputting each of the pronunciations on the audio output device so that a user can hear the pronunciations; and in response to a user selecting one of the pronunciations, using the selected pronunciation by the speech recognition system to recognize speech.
Claim 54
Dependent Claim
26 words
The computer-readable medium of claim 43 wherein the speech recognition system is used in a dictation system that converts speech spoken by a speaker into text.
Claim 55
Dependent Claim
145 words
In a computer-implemented speech recognition system for recognizing speech from a speaker, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a dictionary of terms having pronunciations for the terms that correspond with how the speech recognition system expects the terms to be pronounced; deriving alternative pronunciations of the terms by applying a heuristic; on multiple instances where the speaker speaks a selected one of terms such that the speech recognition system recognizes the selected term, determining which of the alternative pronunciations of the selected terms the user used; and based on the determining step, identifying which of the alternative pronunciations of the selected term the user is most likely using and updating the dictionary to designate the pronunciation that the user is most likely using as how the speech recognition system expects the selected term to be pronounced.
Claim 56
Dependent Claim
145 words
In a computer-implemented speech recognition system for recognizing speech from a speaker, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: providing a dictionary of terms having pronunciations for the terms that correspond with how the speech recognition system expects the terms to be pronounced; deriving alternative pronunciations of the terms by applying a heuristic; on multiple instances where the speaker speaks a selected one of terms such that the speech recognition system recognizes the selected term, determining which of the alternative pronunciations of the selected terms the user used; and based on the determining step, identifying which of the alternative pronunciations of the selected term the user is most likely using and updating the dictionary to designate the pronunciation that the user is most likely using as how the speech recognition system expects the selected term to be pronounced.
Claim 57
Dependent Claim
140 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having an output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: receiving a spoken version of a term having a given pronunciation from the speaker; providing an expected pronunciation for the term that corresponds to how the speech recognition system expects the speaker to speak the term; comparing the given pronunciation of the spoken version of the term with the expected pronunciation of the term to determine a degree of difference between the given pronunciation of the spoken version of the term and the expected pronunciation of the term; and where the degree of difference exceeds an acceptable predetermined threshold, generating output on the output device to inform the speaker that the degree of difference exceeds the threshold.
Claim 58
Dependent Claim
140 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having an output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of: receiving a spoken version of a term having a given pronunciation from the speaker; providing an expected pronunciation for the term that corresponds to how the speech recognition system expects the speaker to speak the term; comparing the given pronunciation of the spoken version of the term with the expected pronunciation of the term to determine a degree of difference between the given pronunciation of the spoken version of the term and the expected pronunciation of the term; and where the degree of difference exceeds an acceptable predetermined threshold, generating output on the output device to inform the speaker that the degree of difference exceeds the threshold.
Claim 59
Dependent Claim
140 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having a display device, a method comprising the steps of: providing an expected pronunciation of a given word that constitutes how the speech recognition system expects the given word to be pronounced by the speaker; gathering statistics regarding how frequently the given word of spoken speech from the speaker is misrecognized by the speech recognition system; and where the statistics indicate that the given word is misrecognized more frequently than a threshold value, prompting the user by generating output on the display device through a user interface element such that the user can request a different pronunciation to correct the expected pronunciation of the given word, a spoken version of the given word with a corrected expected pronunciation being output by the user interface element.
Claim 60
Dependent Claim
140 words
In a computer-implemented speech recognition system for recognizing spoken speech from a speaker, said system having a display device, a method comprising the steps of: providing an expected pronunciation of a given word that constitutes how the speech recognition system expects the given word to be pronounced by the speaker; gathering statistics regarding how frequently the given word of spoken speech from the speaker is misrecognized by the speech recognition system; and where the statistics indicate that the given word is misrecognized more frequently than a threshold value, prompting the user by generating output on the display device through a user interface element such that the user can request a different pronunciation to correct the expected pronunciation of the given word, a spoken version of the given word with a corrected expected pronunciation being output by the user interface element.
Claim 61
Dependent Claim
125 words
A speech recognition system for recognizing speech from a speaker, comprising: an input device for receiving speech input from the speaker; a speech recognition engine for recognizing speech in the speech input received from the speaker by the input device wherein the speech recognition engine has expected pronunciations for portions of speech; a text-to-speech engine for producing a spoken representation of text constituting a selected portion of speech; an audio output device for outputting the spoken representation of the text from the text-to-speech engine so that the user knows the expected pronunciation of the selected portion of speech; and an interface component configured to receive a new pronunciation from the user, indicative of a pronunciation more closely conforming to a pronunciation used by the user.
Claim 62
Dependent Claim
125 words
A speech recognition system for recognizing speech from a speaker, comprising: an input device for receiving speech input from the speaker; a speech recognition engine for recognizing speech in the speech input received from the speaker by the input device wherein the speech recognition engine has expected pronunciations for portions of speech; a text-to-speech engine for producing a spoken representation of text constituting a selected portion of speech; an audio output device for outputting the spoken representation of the text from the text-to-speech engine so that the user knows the expected pronunciation of the selected portion of speech; and an interface component configured to receive a new pronunciation from the user, indicative of a pronunciation more closely conforming to a pronunciation used by the user.
Claim 63
Dependent Claim
18 words
The speech recognition system of claim 48 wherein the text-to-speech engine is part of the speech recognition engine.
Claim 64
Dependent Claim
34 words
The speech recognition system of claim 48 wherein the speech recognition system further comprises a dictionary holding expected pronunciations of words for use by the text-to-speech engine in producing the spoken representation of text.
Claim 65
Dependent Claim
35 words
The speech recognition system of claim 48 wherein the speech recognition system further comprises letter-to-sound rules for converting textual letters into sounds for use by the text-to-speech engine in producing the spoken representation of text.
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