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comparison src/tts.mp3.luan @ 46:cc20eebaa74a

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use openai tts
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 14 Aug 2025 11:27:34 +0900
parents src/stt.js.luan@d3f5448743bf
children
comparison
equal deleted inserted replaced
45:fef7a5c65cfb 46:cc20eebaa74a
1 local Luan = require "luan:Luan.luan" 1 local Luan = require "luan:Luan.luan"
2 local error = Luan.error 2 local error = Luan.error
3 local Parsers = require "luan:Parsers.luan" 3 local Parsers = require "luan:Parsers.luan"
4 local xml_encode = Parsers.xml_encode or error() 4 local json_string = Parsers.json_string or error()
5 local Io = require "luan:Io.luan" 5 local Io = require "luan:Io.luan"
6 local uri = Io.uri or error() 6 local uri = Io.uri or error()
7 local Http = require "luan:http/Http.luan" 7 local Http = require "luan:http/Http.luan"
8 local Config = require "site:/private/Config.luan" 8 local Config = require "site:/private/Config.luan"
9 local key = Config.chatgpt.key or error()
10 local Logging = require "luan:logging/Logging.luan"
11 local logger = Logging.logger "tts.js"
9 12
10 13
11 -- https://learn.microsoft.com/en-us/azure/ai-services/speech-service/index-text-to-speech 14 -- https://platform.openai.com/docs/guides/text-to-speech
12 15
13 local region = Config.azure_tts.region or error() 16 local url = "https://api.openai.com/v1/audio/speech"
14 local url = "https://"..region..".tts.speech.microsoft.com/cognitiveservices/v1"
15 local headers = { 17 local headers = {
16 ["Ocp-Apim-Subscription-Key"] = Config.azure_tts.key or error() 18 Authorization = "Bearer "..key
17 ["Content-Type"] = "application/ssml+xml" 19 ["Content-Type"] = "application/json"
18 ["X-Microsoft-OutputFormat"] = "audio-16khz-128kbitrate-mono-mp3"
19 } 20 }
20 21
21 local function text_to_speech(lang,voice,text) 22 local function text_to_speech(voice,instructions,text)
22 local xml = `%>
23 <speak version='1.0' xml:lang='<%=lang%>'>
24 <voice name='<%=voice%>'>
25 <%= xml_encode(text) %>
26 </voice>
27 </speak>
28 <% `
29 local options = { 23 local options = {
30 method = "POST" 24 method = "POST"
31 headers = headers 25 headers = headers
32 content = xml 26 content = json_string{
27 model = "gpt-4o-mini-tts"
28 voice = voice
29 input = text
30 instructions = instructions
31 }
33 } 32 }
34 return uri(url,options) 33 return uri(url,options)
35 end 34 end
36 35
37 return function() 36 return function()
38 local lang = Http.request.parameters.lang or error()
39 local voice = Http.request.parameters.voice or error() 37 local voice = Http.request.parameters.voice or error()
38 local instructions = Http.request.parameters.instructions or error()
40 local text = Http.request.parameters.text or error() 39 local text = Http.request.parameters.text or error()
41 local input = text_to_speech(lang,voice,text) 40 local input = text_to_speech(voice,instructions,text)
42 Http.response.binary_writer().write_from(input) 41 Http.response.binary_writer().write_from(input)
43 end 42 end