-added backgroundmusic switch

SpeechSynthesis_SSML.js

@@ -1,50 +1,94 @@
-(async function() {
+(async function () {
     "use strict";
-
-    // Dynamically import the Microsoft Cognitive Services Speech SDK
     const sdk = await import("microsoft-cognitiveservices-speech-sdk");
     const readline = require("readline");
+    const { exec } = require("child_process");
+    const path = require("path");
+    const fs = require("fs");
 
-    const audioFile = "YourAudioFile.wav";
-    const speechConfig = sdk.SpeechConfig.fromSubscription("c0d12660f15c4869bf2572fda3cb91ab", "germanywestcentral");
-    const audioConfig = sdk.AudioConfig.fromAudioFileOutput(audioFile);
+    const rawFile = "tts_raw.wav";
+    const asteriskFile = "tts_asterisk.wav";
 
-    // Configure the voice name and language
+    // Aufruf:
+    //   node tts.js                  -> background.wav, falls vorhanden
+    //   node tts.js meine-musik.mp3  -> diese Musik
+    //   node tts.js --no-music       -> ohne Musik (auch: none, -n)
+    const arg = process.argv[2];
+    const noMusic = ["--no-music", "none", "-n"].includes(arg);
+    const musicFile = noMusic ? null : (arg || "background.wav");
+    const musicVolume = 0.15;
+    const introMs = 2000; // Musik-Vorlauf vor der Sprache
+
+    const speechConfig = sdk.SpeechConfig.fromSubscription(
+        "c0d12660f15c4869bf2572fda3cb91ab",
+        "germanywestcentral"
+    );
+    const audioConfig = sdk.AudioConfig.fromAudioFileOutput(rawFile);
     const voiceName = "de-AT-IngridNeural";
     const language = "de-AT";
+    speechConfig.speechSynthesisVoiceName = voiceName;
+    const synthesizer = new sdk.SpeechSynthesizer(speechConfig, audioConfig);
 
-    // Create the speech synthesizer
-    var synthesizer = new sdk.SpeechSynthesizer(speechConfig, audioConfig);
-
-    var rl = readline.createInterface({
+    const rl = readline.createInterface({
         input: process.stdin,
         output: process.stdout
     });
 
-    rl.question("Enter text with break tags >\n> ", function (userInput) {
+    rl.question("Enter text with SSML break tags:\n> ", function (userInput) {
         rl.close();
-
-        // Construct the SSML string
-        const ssml = `<speak version="1.0" xmlns="http://www.w3.org/2001/10/synthesis" xml:lang="${language}"><voice name="${voiceName}">${userInput}</voice></speak>`;
-
-        // Start the synthesizer and wait for a result
-        synthesizer.speakSsmlAsync(ssml,
+        const ssml = `
+<speak version="1.0"
+       xmlns="http://www.w3.org/2001/10/synthesis"
+       xml:lang="${language}">
+  <voice name="${voiceName}">
+    ${userInput}
+  </voice>
+</speak>`;
+        synthesizer.speakSsmlAsync(
+            ssml,
             function (result) {
-                if (result.reason === sdk.ResultReason.SynthesizingAudioCompleted) {
-                    console.log("Synthesis finished.");
-                } else {
-                    console.error("Speech synthesis canceled, " + result.errorDetails +
-                        "\nDid you set the speech resource key and region values?");
-                }
                 synthesizer.close();
-                synthesizer = null;
+                if (result.reason !== sdk.ResultReason.SynthesizingAudioCompleted) {
+                    console.error("TTS failed:", result.errorDetails);
+                    return;
+                }
+
+                const hasMusic = !noMusic && fs.existsSync(musicFile);
+                if (!noMusic && !hasMusic) {
+                    console.warn(`Hinweis: "${musicFile}" nicht gefunden -> ohne Musik.`);
+                }
+                console.log(
+                    "Azure TTS done → converting for Asterisk" +
+                    (hasMusic ? ` (mit Musik: ${musicFile})...` : " (ohne Musik)...")
+                );
+
+                let cmd;
+                if (hasMusic) {
+                    cmd =
+                        `ffmpeg -y -i "${rawFile}" -stream_loop -1 -i "${musicFile}" ` +
+                        `-filter_complex "[0:a]adelay=${introMs}:all=1[sp];` +
+                        `[1:a]volume=${musicVolume}[bg];` +
+                        `[sp][bg]amix=inputs=2:duration=first:dropout_transition=0,` +
+                        `areverse,afade=t=in:d=2,areverse" ` +
+                        `-acodec pcm_s16le -ar 8000 -ac 1 "${asteriskFile}"`;
+                } else {
+                    cmd = `ffmpeg -y -i "${rawFile}" -acodec pcm_s16le -ar 8000 -ac 1 "${asteriskFile}"`;
+                }
+
+                exec(cmd, (error, stdout, stderr) => {
+                    if (error) {
+                        console.error("FFmpeg error:", error);
+                        return;
+                    }
+                    console.log("Asterisk-compatible file created:", asteriskFile);
+                    fs.unlinkSync(rawFile);
+                });
             },
             function (err) {
-                console.trace("Error - " + err);
+                console.error("Error:", err);
                 synthesizer.close();
-                synthesizer = null;
-            });
-
-        console.log("Now synthesizing to: " + audioFile);
+            }
+        );
+        console.log("Synthesizing...");
     });
-})();
+})();