How to fix 400 error with custom Lexicon file.

Jeff E 0

Below is our tried and tested implementation using azure speech services with one addition. The lines creating and setting the custom lexicon file are causing issues. Without those lines, the code works as intended and produces a proper response, but with the lines the response gives a 400 error without any other information. The lexicon file is on a block blob and is anonymously accessible. I will include the lexicon file as well. Any help would be much appreciated.

I couldn't attach the code to the original question in code blocks for some reason so here it is in plain text.

<?xml version="1.0" encoding="UTF-8"?>
<lexicon xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://www.w3.org/2005/01/pronunciation-lexicon           http://www.w3.org/TR/2007/CR-pronunciation-lexicon-20071212/pls.xsd"     version="1.0" xml:lang="en-US" xmlns="http://www.w3.org/2005/01/pronunciation-lexicon" alphabet="ipa">
    <lexeme>         
        <grapheme>Jeff</grapheme>         
        <alias>Jeffrey</alias>     
    </lexeme> 
</lexicon>

Jeff E 0 Reputation points

2024-07-17T22:47:33.98+00:00

This Q&A software is next to useless :( I can't get it to do what I want it to do at all!! I can't upload my code, even in plain text, I just keep getting an error telling me that I'm not authorized. I think it's a character limit thing. If anyone has any info on the 400 error, let me know.

Jeff E 0

I finally got my Python to upload!

headers = {
        'Authorization': 'Bearer ' + get_token(),
        'Content-Type': 'application/ssml+xml',
        'X-Microsoft-OutputFormat': 'riff-24khz-16bit-mono-pcm',
        'User-Agent': 'YOUR_RESOURCE_NAME'
    }
xml_body = ElementTree.Element('speak', version='1.0')
xml_body.set('xmlns', 'https://www.w3.org/2001/10/synthesis')
xml_body.set('{http://www.w3.org/XML/1998/namespace}lang', '{}-{}'.format(lang, region))

lexicon = ElementTree.SubElement(xml_body, 'lexicon')
lexicon.set('uri', 'https://bcpronunciation2.blob.core.windows.net/pron-test/lexicon_template.xml')

assert lang in Languages.lang2voices, '"{} is not a recognized language for text-to-speech'.format(lang)
assert region.upper() in Languages.lang2voices[lang], '"{}" is not a recognized region for "{}"'.format(region, lang)

voice_name = Languages.lang2voices[lang][region.upper()][voice_idx]
voice = ElementTree.SubElement(xml_body, 'voice')
voice.set('{http://www.w3.org/XML/1998/namespace}lang', '{}-{}'.format(lang, region.upper()))
voice.set('name', voice_name)  # Short name for 'Microsoft Server Speech Text to Speech Voice

prosody = ElementTree.SubElement(voice, 'prosody')
prosody.set('rate', str(rate))
prosody.text = text

body = ElementTree.tostring(xml_body)
response = requests.post(constructed_url, headers=headers, data=body)

dupammi 8,535 Reputation points Microsoft Vendor

2024-07-18T08:21:47.7833333+00:00

Hi @Jeff E

Thank you for your question.

I was able to upload the lex file and open it just fine in Speech studio. I'm unable to reproduce this issue. It works without errors for me and as expected.

I recommend raising a support request by giving them the details about the service tier and region of your speech resource or sharing feedback to product group on ideas portal for further investigation.

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How to fix 400 error with custom Lexicon file.

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