diff --git a/drivers/xaudio2/audio_driver_xaudio2.cpp b/drivers/xaudio2/audio_driver_xaudio2.cpp
index d1f63f4866..8674d24af6 100644
--- a/drivers/xaudio2/audio_driver_xaudio2.cpp
+++ b/drivers/xaudio2/audio_driver_xaudio2.cpp
@@ -45,12 +45,12 @@ Error AudioDriverXAudio2::init() {
 	pcm_open = false;
 	samples_in = NULL;
 
-	mix_rate = 48000;
+	mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
 	// FIXME: speaker_mode seems unused in the Xaudio2 driver so far
 	speaker_mode = SPEAKER_MODE_STEREO;
 	channels = 2;
 
-	int latency = GLOBAL_DEF_RST("audio/output_latency", 25);
+	int latency = GLOBAL_DEF_RST("audio/output_latency", DEFAULT_OUTPUT_LATENCY);
 	buffer_size = closest_power_of_2(latency * mix_rate / 1000);
 
 	samples_in = memnew_arr(int32_t, buffer_size * channels);
diff --git a/platform/android/audio_driver_opensl.cpp b/platform/android/audio_driver_opensl.cpp
index cb25575b74..1232fc7453 100644
--- a/platform/android/audio_driver_opensl.cpp
+++ b/platform/android/audio_driver_opensl.cpp
@@ -326,7 +326,7 @@ Error AudioDriverOpenSL::capture_stop() {
 
 int AudioDriverOpenSL::get_mix_rate() const {
 
-	return 44100;
+	return 44100; // hardcoded for Android, as selected by SL_SAMPLINGRATE_44_1
 }
 
 AudioDriver::SpeakerMode AudioDriverOpenSL::get_speaker_mode() const {
diff --git a/platform/haiku/audio_driver_media_kit.cpp b/platform/haiku/audio_driver_media_kit.cpp
index 8b7dd08bb7..3c4e31da36 100644
--- a/platform/haiku/audio_driver_media_kit.cpp
+++ b/platform/haiku/audio_driver_media_kit.cpp
@@ -39,11 +39,11 @@ int32_t *AudioDriverMediaKit::samples_in = NULL;
 Error AudioDriverMediaKit::init() {
 	active = false;
 
-	mix_rate = 44100;
+	mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
 	speaker_mode = SPEAKER_MODE_STEREO;
 	channels = 2;
 
-	int latency = GLOBAL_DEF_RST("audio/output_latency", 25);
+	int latency = GLOBAL_DEF_RST("audio/output_latency", DEFAULT_OUTPUT_LATENCY);
 	buffer_size = next_power_of_2(latency * mix_rate / 1000);
 	samples_in = memnew_arr(int32_t, buffer_size * channels);