import {serve} from "https://deno.land/std/http/server.ts"; import {EdgeSpeechTTS} from "https://esm.sh/@lobehub/tts@1"; async function synthesizeSpeech(model: string, voice: string, text: string) { let voiceName; let rate = 0; let pitch = 0; if (!model.includes("Neural")) { switch (model) { case "ava": voiceName = "en-US-AvaMultilingualNeural"; break; case "andrew": voiceName = "en-US-AndrewMultilingualNeural"; break; case "emma": voiceName = "en-US-EmmaMultilingualNeural"; break; case "brian": voiceName = "en-US-BrianMultilingualNeural"; break; case "vivienne": voiceName = "fr-FR-VivienneMultilingualNeural"; break; case "remy": voiceName = "fr-FR-RemyMultilingualNeural"; break; case "seraphina": voiceName = "de-DE-SeraphinaMultilingualNeural"; break; case "florian": voiceName = "de-DE-FlorianMultilingualNeural"; break; case "dmitry": voiceName = "ru-RU-DmitryNeural"; break; case "svetlana": voiceName = "ru-RU-SvetlanaNeural"; break; default: voiceName = "en-US-BrianMultilingualNeural"; break; } } else { voiceName = model; const params = Object.fromEntries(voice.split("|").map((p) => p.split(":") as [string, string])); rate = Number(params["rate"] || 0); pitch = Number(params["pitch"] || 0); } const tts = new EdgeSpeechTTS(); const payload = { input: text, options: { rate: rate, pitch: pitch, voice: voiceName }, }; const response = await tts.create(payload); const mp3Buffer = new Uint8Array(await response.arrayBuffer()); return new Response(mp3Buffer, { headers: {"Content-Type": "audio/mpeg"}, }); } function validateContentType(req: Request, expected: string) { const contentType = req.headers.get("Content-Type"); if (contentType !== expected) { console.log(`Invalid Content-Type ${contentType}, expected ${expected}`); return new Response("Bad Request", {status: 400}); } } async function handleDebugRequest() { const voice = "rate:0.0|pitch:0.0"; const model = "en-US-BrianMultilingualNeural"; const text = "Приветик! Надеюсь ты меня хорошо слышишь? Алё?!"; console.log(`model=${model}, voice=${voice}, text=${text}`); return synthesizeSpeech(model, voice, text); } async function handleSynthesisRequest(req: Request) { if (req.method !== "POST") { return new Response("Method Not Allowed", {status: 405}); } const invalidContentType = validateContentType(req, "application/json"); if (invalidContentType) return invalidContentType; const {model, input, voice} = await req.json(); return synthesizeSpeech(model, voice, input); } async function handleDemoRequest(req: Request) { const html = ` tts
api

получить список голосов:


        
post-запрос для синтеза голоса из текста:

        

      

    

 
 `;

    return new Response(html, {
        headers: {"Content-Type": "text/html"},
    });
}

async function handleVoiceList() {
    let voices = [{model: 'ava', gender: 'female'}, {model: 'andrew', gender: 'male'}, {model: 'emma', gender: 'female'}, {model: 'brian', gender: 'male'}, {model: 'vivienne', gender: 'female'}, {model: 'remy', gender: 'male'}, {
        model: 'seraphina', gender: 'female'
    }, {model: 'florian', gender: 'male'}, {model: 'dmitry', gender: 'male'}, {model: 'svetlana', gender: 'female'}];

    const sortedVoiceList = voices.sort((a, b) => {
        if (a.gender === 'male' && b.gender === 'female') return -1;
        if (a.gender === 'female' && b.gender === 'male') return 1;
        return 0;
    });

    return new Response(JSON.stringify(sortedVoiceList), {
        headers: {"Content-Type": "application/json"},
    });

}


serve(async (req) => {
    try {
        const url = new URL(req.url);

        if (url.pathname === "/") {
            return handleDemoRequest(req);
        }
        if (url.pathname === "/v1/audio/models") {
            return handleVoiceList();
        }
        if (url.pathname === "/tts") {
            return handleDebugRequest();
        }

        if (url.pathname !== "/v1/audio/speech") {
            console.log(`Unhandled path ${url.pathname}`);
            return new Response("Not Found", {status: 404});
        }

        return handleSynthesisRequest(req);
    } catch (err) {
        console.error(`Error processing request: ${err.message}`);
        return new Response(`Internal Server Error\n${err.message}`, {
            status: 500,
        });
    }
}, { port: 7860 });