diff --git a/src/pages/tools/converters/audio-converter/types.ts b/src/pages/tools/converters/audio-converter/types.ts
new file mode 100644
index 0000000..d749b7a
--- /dev/null
+++ b/src/pages/tools/converters/audio-converter/types.ts
@@ -0,0 +1,16 @@
+export const AUDIO_FORMATS = {
+  // Lossy formats
+  mp3: { codec: 'libmp3lame', bitrate: '192k', mimeType: 'audio/mpeg' },
+  aac: { codec: 'aac', bitrate: '192k', mimeType: 'audio/aac' },
+  ogg: { codec: 'libvorbis', bitrate: '192k', mimeType: 'audio/ogg' },
+
+  // Lossless formats
+  wav: { codec: 'pcm_s16le', bitrate: null, mimeType: 'audio/wav' },
+  flac: { codec: 'flac', bitrate: null, mimeType: 'audio/flac' }
+} as const;
+
+export type AudioFormat = keyof typeof AUDIO_FORMATS;
+
+export type InitialValuesType = {
+  outputFormat: AudioFormat;
+};