diff --git a/Sources/StreamRecorderKit/FFmpegRecorder.swift b/Sources/StreamRecorderKit/FFmpegRecorder.swift
index a02c2b5..2481e36 100644
--- a/Sources/StreamRecorderKit/FFmpegRecorder.swift
+++ b/Sources/StreamRecorderKit/FFmpegRecorder.swift
@@ -56,7 +56,9 @@ public final class FFmpegRecorder: StreamRecorderEngine {
             args += ["-t", String(duration)]
         }
         args += [
-            "-c", "copy",
+            "-c:v", "copy",
+            "-c:a", "aac",
+            "-b:a", "192k",
             "-movflags", "+faststart",
             outputPath
         ]