diff --git a/audio.c b/audio.c
index afd43c7..a8b9a7d 100644
--- a/audio.c
+++ b/audio.c
@@ -18,7 +18,7 @@ int audio_init(audio_state* state)
 
 	SDL_zero(recording_spec);
 	recording_spec.freq = 44100;
-	recording_spec.format = AUDIO_S16;
+	recording_spec.format = AUDIO_S32;
 	recording_spec.channels = 2;
 	recording_spec.samples = 4096;
 	recording_spec.callback = audio_recording_callback;
@@ -26,7 +26,7 @@ int audio_init(audio_state* state)
 
 	SDL_zero(playback_spec);
 	playback_spec.freq = 44100;
-	playback_spec.format = AUDIO_S16;
+	playback_spec.format = AUDIO_S32;
 	playback_spec.channels = 2;
 	playback_spec.samples = 4096;
 	playback_spec.callback = audio_playback_callback;
@@ -84,12 +84,18 @@ int audio_playback_init(audio_state* state)
 	return 1;
 }
 
-void audio_playback_pause(audio_state* state, int is_recording, int is_pause)
+void audio_device_pause(audio_state* state, int is_recording, int is_pause)
 {
 	int device_id = is_recording ? state->recording_device_id : state->playback_device_id;
 	SDL_PauseAudioDevice(device_id, is_pause);
 }
 
+void audio_device_close(audio_state* state, int is_recording)
+{
+	int device_id = is_recording ? state->recording_device_id : state->playback_device_id;
+	SDL_CloseAudioDevice(device_id);
+}
+
 void audio_buffer_reset(audio_state* state)
 {
 	memset(state->recording_buffer, 0, state->recording_buffer_size);
diff --git a/audio.h b/audio.h
index 6cb7fdd..7db625d 100644
--- a/audio.h
+++ b/audio.h
@@ -16,7 +16,8 @@ int audio_init(audio_state* state);
 void audio_destroy(audio_state* state);
 int audio_recording_init(audio_state* state, int index);
 int audio_playback_init(audio_state* state);
-void audio_playback_pause(audio_state* state, int is_recording, int pause);
+void audio_device_pause(audio_state* state, int is_recording, int pause);
+void audio_device_close(audio_state* state, int is_recording);
 void audio_buffer_reset(audio_state* state);
 
 #endif