diff --git a/src/audio/chunk.cpp b/src/audio/chunk.cpp
index fb7f1354..abc42bc7 100644
--- a/src/audio/chunk.cpp
+++ b/src/audio/chunk.cpp
@@ -16,7 +16,7 @@ namespace audio {
 
 ChunkReader::ChunkReader(std::size_t chunk_size)
     : raw_working_buffer_(static_cast<std::byte*>(
-          heap_caps_malloc(chunk_size * 1.5, MALLOC_CAP_SPIRAM))),
+          heap_caps_malloc(chunk_size * 2, MALLOC_CAP_SPIRAM))),
       working_buffer_(raw_working_buffer_, chunk_size * 1.5) {}
 
 ChunkReader::~ChunkReader() {
diff --git a/src/audio/fatfs_audio_input.cpp b/src/audio/fatfs_audio_input.cpp
index 14176eae..08f39347 100644
--- a/src/audio/fatfs_audio_input.cpp
+++ b/src/audio/fatfs_audio_input.cpp
@@ -20,7 +20,7 @@ static const char* kTag = "SRC";
 namespace audio {
 
 // 32KiB to match the minimum himen region size.
-static const std::size_t kChunkSize = 32 * 1024;
+static const std::size_t kChunkSize = 24 * 1024;
 
 FatfsAudioInput::FatfsAudioInput(std::shared_ptr<drivers::SdStorage> storage)
     : IAudioElement(),
@@ -88,7 +88,8 @@ auto FatfsAudioInput::Process() -> cpp::result<void, AudioProcessingError> {
         dest_event->chunk_data.bytes.first(bytes_read);
     SendOrBufferEvent(std::move(dest_event));
 
-    if (f_eof(&current_file_)) {
+    if (bytes_read < kChunkSize || f_eof(&current_file_)) {
+      ESP_LOGI(kTag, "closing file");
       f_close(&current_file_);
       is_file_open_ = false;
     }