diff --git a/drivers/alsa/audio_driver_alsa.cpp b/drivers/alsa/audio_driver_alsa.cpp
index 07b6cc441f..78f4590591 100644
--- a/drivers/alsa/audio_driver_alsa.cpp
+++ b/drivers/alsa/audio_driver_alsa.cpp
@@ -187,7 +187,8 @@ void AudioDriverALSA::thread_func(void *p_udata) {
 		int total = 0;
 
 		while (todo && !ad->exit_thread) {
-			uint8_t *src = (uint8_t *)ad->samples_out.ptr();
+			// FRT_PATCH_ALSA fix by charasyn (PR 43928)
+			uint16_t *src = (uint16_t *)ad->samples_out.ptr();
 			int wrote = snd_pcm_writei(ad->pcm_handle, (void *)(src + (total * ad->channels)), todo);
 
 			if (wrote > 0) {