diff --git a/.gitignore b/.gitignore
index 2f396e9..2394d47 100644
--- a/.gitignore
+++ b/.gitignore
@@ -160,3 +160,5 @@ cython_debug/
 #.idea/
 
 .env
+audios/*.mp3
+audios/*.ogg
diff --git a/audios/.gitkeep b/audios/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/chain_service/dependencies/audio_converter_service.py b/chain_service/dependencies/audio_converter_service.py
new file mode 100644
index 0000000..ac5f5f2
--- /dev/null
+++ b/chain_service/dependencies/audio_converter_service.py
@@ -0,0 +1,13 @@
+from chain_service.services.audio_converter import AudioConverterService
+
+from fastapi import Depends
+from typing import Annotated
+
+
+def get_audio_converter_service() -> AudioConverterService:
+    return AudioConverterService()
+
+
+AudioConverterServiceDependency = Annotated[
+    AudioConverterService, Depends(get_audio_converter_service)
+]
diff --git a/chain_service/services/audio_converter.py b/chain_service/services/audio_converter.py
new file mode 100644
index 0000000..aeb8be2
--- /dev/null
+++ b/chain_service/services/audio_converter.py
@@ -0,0 +1,33 @@
+from chain_service.utils.sync_to_async import sync_to_async
+
+import os
+import ffmpeg
+import aiofiles
+from uuid import uuid4
+from io import BytesIO
+
+
+class AudioConverterService:
+
+    @sync_to_async
+    def __mp3_to_ogg(self, mp3: BytesIO) -> str:
+        filename = f"./audios/{uuid4()}.ogg"
+
+        process = (
+            ffmpeg.input("pipe:")
+            .output(filename, loglevel="quiet")
+            .overwrite_output()
+            .run_async(pipe_stdin=True)
+        )
+
+        process.communicate(input=mp3.getbuffer())
+        return filename
+
+    async def mp3_to_ogg(self, mp3: BytesIO) -> BytesIO:
+        filename = await self.__mp3_to_ogg(mp3)
+
+        async with aiofiles.open(filename, "rb") as file:
+            content = BytesIO(initial_bytes=await file.read())
+
+        os.remove(filename)
+        return content