diff --git a/3rdparty/patches/ravenna-alsa-lkm-enable-mono-channels.patch b/3rdparty/patches/ravenna-alsa-lkm-enable-mono-channels.patch
new file mode 100644
index 0000000..fd6f67d
--- /dev/null
+++ b/3rdparty/patches/ravenna-alsa-lkm-enable-mono-channels.patch
@@ -0,0 +1,23 @@
+diff --git a/driver/audio_driver.c b/driver/audio_driver.c
+index 3d9debd..339327b 100644
+--- a/driver/audio_driver.c
++++ b/driver/audio_driver.c
+@@ -1106,7 +1130,7 @@ static struct snd_pcm_hardware mr_alsa_audio_pcm_hardware_playback =
+     .rates =    (SNDRV_PCM_RATE_KNOT|SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_176400|SNDRV_PCM_RATE_192000),
+     .rate_min =         44100,
+     .rate_max =         384000,
+-    .channels_min =     2,
++    .channels_min =     1,
+     .channels_max =     MR_ALSA_NB_CHANNELS_MAX,
+     .buffer_bytes_max = MR_ALSA_RINGBUFFER_NB_FRAMES * MR_ALSA_NB_CHANNELS_MAX * 4, // 4 bytes per sample, 128 ch
+     .period_bytes_min = MR_ALSA_NB_FRAMES_PER_PERIOD_AT_1FS * 2 * 3, // amount of data in bytes for 8 channels, 24bit samples, at 1Fs
+@@ -1135,7 +1159,7 @@ static struct snd_pcm_hardware mr_alsa_audio_pcm_hardware_capture =
+     .rates =    (SNDRV_PCM_RATE_KNOT|SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_176400|SNDRV_PCM_RATE_192000),
+     .rate_min =         44100,
+     .rate_max =         384000,
+-    .channels_min =     2,
++    .channels_min =     1,
+     .channels_max =     MR_ALSA_NB_CHANNELS_MAX,
+     .buffer_bytes_max = MR_ALSA_RINGBUFFER_NB_FRAMES * MR_ALSA_NB_CHANNELS_MAX * 4, // 4 bytes per sample, 128 ch
+     .period_bytes_min = MR_ALSA_NB_FRAMES_PER_PERIOD_AT_1FS * 2 * 4, // amount of data in bytes for 8 channels, 24bit samples, at 1Fs
+
diff --git a/3rdparty/patches/ravenna-alsa-lkm-init-play-capture-buffers.patch b/3rdparty/patches/ravenna-alsa-lkm-init-play-capture-buffers.patch
new file mode 100644
index 0000000..c06e5f0
--- /dev/null
+++ b/3rdparty/patches/ravenna-alsa-lkm-init-play-capture-buffers.patch
@@ -0,0 +1,22 @@
+diff --git a/driver/audio_driver.c b/driver/audio_driver.c
+index 3d9debd..339327b 100644
+--- a/driver/audio_driver.c
++++ b/driver/audio_driver.c
+@@ -2441,7 +2142,7 @@ static int mr_alsa_audio_preallocate_memory(struct mr_alsa_audio_chip *chip)
+         printk(KERN_ERR "mr_alsa_audio_preallocate_memory: could not allocate playback buffer (%zd bytes vmalloc requested...\n", wanted);
+         goto _failed;
+     }
+-
++    memset(chip->playback_buffer, 0, wanted);
+
+     wanted = mr_alsa_audio_pcm_hardware_capture.buffer_bytes_max; // MR_ALSA_RINGBUFFER_NB_FRAMES * MR_ALSA_NB_CHANNELS_MAX * 4;
+
+@@ -2452,6 +2153,7 @@ static int mr_alsa_audio_preallocate_memory(struct mr_alsa_audio_chip *chip)
+         printk(KERN_ERR "mr_alsa_audio_preallocate_memory: could not allocate capture buffer (%zd bytes vmalloc requested...\n", wanted);
+         goto _failed;
+     }
++    memset(chip->capture_buffer, 0, wanted);
+     for (i = 0; i < MR_ALSA_NB_CHANNELS_MAX; i++)
+     {
+         chip->capture_buffer_channels_map[i] = (void*)chip->capture_buffer + MR_ALSA_RINGBUFFER_NB_FRAMES * i * 4;
+
diff --git a/build.sh b/build.sh
index 538b9a3..8f4bf78 100755
--- a/build.sh
+++ b/build.sh
@@ -23,12 +23,16 @@ if [ ! -d ravenna-alsa-lkm.git ]; then
   git apply ../patches/ravenna-alsa-lkm-disable-ptp-checksum.patch
   git apply ../patches/ravenna-alsa-lkm-independent-playback-capture.patch
   git apply ../patches/ravenna-alsa-lkm-direct-pcm-transfer.patch
+  git apply ../patches/ravenna-alsa-lkm-enable-mono-channels.patch
+  git apply ../patches/ravenna-alsa-lkm-init-play-capture-buffers.patch
   echo "Building ravenna-alsa-lkm kernel module ..."
   cd driver
   make
   cd ../..
 fi
 
+exit 1
+
 if [ ! -d cpp-httplib.git ]; then
   git clone https://github.com/yhirose/cpp-httplib.git
   cd cpp-httplib