diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/lua/lib/TTSLibrary.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/lua/lib/TTSLibrary.kt
index 889ea3e..4bd45b7 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/core/lua/lib/TTSLibrary.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/core/lua/lib/TTSLibrary.kt
@@ -27,7 +27,8 @@ class TTSLibrary(private val ttsEngine: TTSEngine) : TwoArgFunction() {
 
    class SayMethod(private val ttsEngine: TTSEngine) : TwoArgFunction() {
       override fun call(text: LuaValue, language: LuaValue): LuaValue {
-         ttsEngine.performTTS(text.checkjstring(), Locale.forLanguageTag(language.checkjstring()))
+         val locale = Locale.forLanguageTag(language.checkjstring().toUpperCase(Locale.ROOT))
+         ttsEngine.performTTS(text.checkjstring(), locale)
 
          return LuaValue.NIL
       }
diff --git a/app/src/main/java/com/bartlomiejpluta/ttsserver/initializer/ScriptsInitializer.kt b/app/src/main/java/com/bartlomiejpluta/ttsserver/initializer/ScriptsInitializer.kt
index 9323390..68af200 100644
--- a/app/src/main/java/com/bartlomiejpluta/ttsserver/initializer/ScriptsInitializer.kt
+++ b/app/src/main/java/com/bartlomiejpluta/ttsserver/initializer/ScriptsInitializer.kt
@@ -49,7 +49,8 @@ class ScriptsInitializer(private val context: Context, private val preferences:
    companion object {
       private const val INITIALIZED_FLAG = "flag_initialized"
       private val endpoints = mapOf(
-         "say.lua" to R.raw.say
+         "say.lua" to R.raw.say,
+         "file.lua" to R.raw.file
       )
    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/raw/config.lua b/app/src/main/res/raw/config.lua
index 9bf6c76..06c44b6 100644
--- a/app/src/main/res/raw/config.lua
+++ b/app/src/main/res/raw/config.lua
@@ -1,2 +1,19 @@
+local silenceModeTimeRange = {
+    from = { 23, 00 },
+    to = { 07, 00 }
+}
+
+function silenceMode()
+    local date = os.date("*t")
+
+    local from = silenceModeTimeRange.from[1] * 60 + silenceModeTimeRange.from[2]
+    local to = silenceModeTimeRange.to[1] * 60 + silenceModeTimeRange.to[2]
+    local now = date.hour * 60 + date.min
+
+    if (from <= to) then return from <= now and now <= to
+    else return from <= now or now <= to end
+end
+
 return {
+    silenceMode = silenceMode
 }
\ No newline at end of file
diff --git a/app/src/main/res/raw/file.lua b/app/src/main/res/raw/file.lua
new file mode 100644
index 0000000..30b75a4
--- /dev/null
+++ b/app/src/main/res/raw/file.lua
@@ -0,0 +1,18 @@
+return {
+    uri = "/{format}",
+    method = Method.POST,
+    accepts = Mime.JSON,
+    consumer = function(request)
+        local body = json.decode(request.body)
+        local format = (request.params.format or "WAV"):upper()
+        local audioFormat = AudioFormat[format]
+        local mime = Mime[format]
+
+        local file = tts.sayToFile(body.text, body.language or "en", audioFormat)
+
+        return {
+            mime = mime,
+            data = file
+        }
+    end
+}
\ No newline at end of file
diff --git a/app/src/main/res/raw/say.lua b/app/src/main/res/raw/say.lua
index 0d5e1a2..45b4d63 100644
--- a/app/src/main/res/raw/say.lua
+++ b/app/src/main/res/raw/say.lua
@@ -2,8 +2,11 @@ return {
     uri = "/say",
     method = Method.POST,
     queued = true,
-    accepts = "application/json",
-    consumer = function()
-        tts.say("Hello, world!", "en")
+    accepts = Mime.JSON,
+    consumer = function(request)
+        if(config.silenceMode()) then return end
+
+        local body = json.decode(request.body)
+        tts.say(body.text, body.language or "en")
     end
 }
\ No newline at end of file