Nuance Vocalizer Developer's Guide - Avaya Support

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Vocalizer runs as a server process similar to other Nuance processes such as therecognition and compilation servers. You can set up a runtime configurationincluding Vocalizer TTS servers in one of two ways:■■Connect each recognition client directly to a single Vocalizer TTS serverprocessUse a Nuance resource manager to mediate requests between recognitionclients and one or more Vocalizer TTS serversNuance recommends that you manage Vocalizer server connections through aresource manager. The resource manager enables load balancing and scalabilityfor large configurations. It also allows you to add, remove, and restart TTSserver processes without restarting the entire configuration.The following sections describe how to start a Vocalizer TTS server and how tointegrate it within runtime configurations both with and without a resourcemanager.Note: If you are not familiar with the resource manager and the overall NuanceSystem runtime architecture, see the Introduction to the Nuance System guideshipped with the Nuance System.10Nuance Vocalizer 3.0Developer’s Guide
Starting a Vocalizer TTS serverCommand-line optionsTo start a Vocalizer TTS server, you need to run nlm before running the vocalizercommand-line program:1 Start the license manager in a command-prompt window. From the%VOCALIZER% directory, enter:> nlm .\license.txt2 Start vocalizer in a separate command-prompt window. From the%VOCALIZER%\bin\win32 directory, include the hostname and port of themachine running the nlm process, setting the port to 8471. For example:> vocalizer lm.Addresses=licenseServer:8471Note: The default two-port license shipped with Vocalizer uses port 8471.When you buy your Vocalizer license, this port number may change, andyou must set the lm.Addresses parameter accordingly.This section describes command-line options you can use when starting thevocalizer program. If you run vocalizer without including any options, defaultsettings for speech synthesis are applied.Specifying thenumber of channelsMemory issuesLicense issuesYou can use the --num_channels option to specify the maximum number ofsimultaneous requests Vocalizer will handle. Requests exceeding the specifiedmaximum experience higher latency (time to first audio) than other requests.For example, if you set -num_channels 10, and Vocalizer is already handling ninerequests, the tenth request is handled immediately, but subsequent requests areblocked until a TTS request completes and Vocalizer can handle a new request.Vocalizer’s memory requirements are dependent upon the number of channelsspecified with the -num_channels option, so make sure you do not specify morechannels than you need so that memory is not wasted. Even a relatively smallnumber of channels (10-20) could affect performance on machines with smallamounts of memory (512 MB) due to memory swapping.Vocalizer allows you the option of having all licenses allocated at startup orhaving them allocated as they are required. By default, licenses are granted on aper request basis.If you choose to preallocate your licenses, make sure -num_channels does notexceed the number of ports available with your license. When you startVocalizer, it attempts to grab the specified number of licenses from the licenseserver. If there are not enough licenses, Vocalizer will not start.Chapter 3 Configuring Vocalizer with the Nuance SystemIncluding Vocalizer in a Nuance configuration11
Page 1 and 2: Nuance Vocalizer3.0Developer’s Gu
Page 3 and 4: ContentsAbout this guide . . . . .
Page 5 and 6: Distributing changes . . . . . . .
Page 7 and 8: Percentages . . . . . . . . . . . .
Page 9 and 10: About this guideNuance Vocalizer pr
Page 11 and 12: (interactive voice response) platfo
Page 13 and 14: Chapter 1Introducing NuanceVocalize
Page 15 and 16: Chapter 2Installing Nuance Vocalize
Page 17 and 18: Installing Nuance VocalizerInstalli
Page 19 and 20: tcsh-$] cd $NUANCEtcsh-$] source SE
Page 21: Chapter 3Configuring Vocalizer with
Page 25 and 26: vocalizer lm.Addresses=hostname:847
Page 27 and 28: [-text_type type][-voice voice_name
Page 29 and 30: lm.AddressesDefines the location (m
Page 31 and 32: esource-manager rm.Port=8584> vocal
Page 33 and 34: host_1WatcherWatcherRecognitionserv
Page 35 and 36: Enabling Vocalizer logsNote: For mo
Page 37 and 38: vocalizer lm.Addresses=hostname:847
Page 39 and 40: Chapter 4Playing TTS prompts fromyo
Page 41 and 42: Note: The TTSPrompt class described
Page 43 and 44: Table 1: Nested elements (continued
Page 45 and 46: Table 2: Supported SSML 1.0 element
Page 51 and 52: Resolving XML parsing errors with p
Page 53 and 54: Table 3 and Table 4 demonstrate the
Page 55 and 56: Chapter 5Starting Vocalizer through
Page 57 and 58: ■Vocalizer configuration■■■
Page 59 and 60: Chapter 6Preprocessing text input6V
Page 61 and 62: The Text In box displays a sample R
Page 63 and 64: Distributing changesSome email sign
Page 65 and 66: “My computer is broken. sad face
Page 67 and 68: Chapter 7Generating audio files fro
Page 69 and 70: ■■Use this text—Enter text in
Page 71 and 72: Chapter 8Customizing yourapplicatio
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Depending on which tabbed pane you
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Word detailsThe Word Details sectio
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Enabling loggingYou can edit the Di
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Testing your entries in ScratchpadW
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Chapter 9Techniques for enhancingau
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Note: The last character in a sente
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■■■A closing single quote if
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As mentioned earlier, Vocalizer exp
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NumbersCardinals and ordinalsVocali
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FractionsVocalizer recognizes fract
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Input texthello12345z4523bOutput te
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Input textOutput textU.K. formats45
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Input text Output: North American f
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Appendix AText processing forCanadi
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Hyphens and dashesSince hyphens, da
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Measurement and numeric abbreviatio
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Input text1234ièmeOutputmille deux
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number to be recognized as an imper
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CurrencyVocalizer recognizes the fo
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Input textCO. 44666-1234OutputColor
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Input texthttp://support.nuance.com
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Appendix BText processing forAmeric
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that is laid out and punctuated in
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Homographic abbreviationsHomographi
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indicate decimals. In CALA mode, pe
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Input textOutput1, 2, 3, 4, 5, 6, 7
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■Dollar sign ($, $US, US$), inclu
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Input textOutput6 Ene. 2004 seis de
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Input textMrs. Chandler7449 Rupert
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IndexAalaw encoding 13APIs 27Nuance
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portschanging settings 20dictionary
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Nuance Vocalizer Developer's Guide - Avaya Support

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