diff --git a/README.md b/README.md
index 2362bbd..96300fd 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ se synchroniser avec le firmware et potentiellement le mettre à jour.
    - [x] LCD (base)
    - [x] LCD (animations)
    - [ ] LCD (UI)
-   - [ ] Audio (sons de figurines)
+   - [x] Audio (sons de figurines)
    - [ ] Audio (sons d'UI)
    - [ ] Audio (gain ?)
  - [ ] Communication avec logiciel
@@ -81,7 +81,7 @@ détaillés ici.
 
 ## Structure de fichiers
 
-Les fichiers sur la carte SD sont structurés comme suit :
+Les fichiers sur la carte SD sont structurés comme suit (**notez les majuscules**) :
 ```
 /
 ├── RANDONNEE/
@@ -91,16 +91,16 @@ Les fichiers sur la carte SD sont structurés comme suit :
 │   │   ├── 02
 │   │   ├── ..
 │   │   └── XX
-│   └── audio.wav
+│   └── ENTRY.WAV
 ├── RESTO/
 │   ├── ANIM/
 │   │   └── ..
-│   └── audio.wav
+│   └── ENTRY.WAV
 ├── .../
 └── SYS/
     ├── ANIM*/
     ├── ../
-    └── *.wav
+    └── *.WAV
 ```
 
 Tous les fichiers liés à une figurine en particulier doivent être placés dans un
diff --git a/include/LCD.h b/include/LCD.h
index b3111a1..e84c51c 100644
--- a/include/LCD.h
+++ b/include/LCD.h
@@ -11,6 +11,7 @@
 
 #include <Adafruit_PCD8544.h>
 
+#include "Audio.h"
 #include "Com.h"
 #include "IDs.h"
 #include "Pinout.h"
diff --git a/include/Speaker.h b/include/Speaker.h
new file mode 100644
index 0000000..722965a
--- /dev/null
+++ b/include/Speaker.h
@@ -0,0 +1,48 @@
+//
+// Created by Teo-CD on 22/10/23.
+//
+
+#ifndef JIN_BARBAPAPA_SPEAKER_H
+#define JIN_BARBAPAPA_SPEAKER_H
+
+#include <Arduino.h>
+#include <Audio.h>
+#include <SerialFlash.h>
+#include <SD.h>
+#include <SPI.h>
+#include <Wire.h>
+
+#include "Com.h"
+#include "IDs.h"
+#include "Pinout.h"
+
+static constexpr uint8_t audioMemReservation = 10;
+
+class Speaker {
+public:
+	Speaker() : sd(SD) {};
+	static void init();
+
+	/** Play the entry sound for a specific tag ID. */
+	void playNewSound(int8_t ID);
+
+	/** Check if a sound and playing an disable the amp if not anymore. */
+	bool checkPlayingAndDisable();
+private:
+	SDClass &sd;
+
+	/*
+	 * Below are members needed to set up the audio pipeline.
+	 * We need an input, output, and to connect them to one another.
+	 * We also need some specially reserved memory to store the data to playback.
+	 */
+	static audio_block_t audioMemory[audioMemReservation];
+	static bool memoryInitialized;
+	AudioPlaySdWav sdWavSource;
+	AudioOutputI2S i2sOut;
+	AudioConnection connectLeftChannels{sdWavSource, 0, i2sOut, 0};
+	AudioConnection connectRightChannels{sdWavSource, 1, i2sOut, 1};
+};
+
+
+#endif //JIN_BARBAPAPA_SPEAKER_H
diff --git a/src/LCD.cpp b/src/LCD.cpp
index 0b9e478..9c08678 100644
--- a/src/LCD.cpp
+++ b/src/LCD.cpp
@@ -47,14 +47,23 @@ bool LCD::checkAndDisplay() {
 	if (!animDir || millis() - lastFrameTime < frameTarget)
 		return false;
 
+	/*
+	 * Audio playback is controlled by interrupts, so it can happen anytime.
+	 * Prevent a potential conflict when reading a frame of animation from the
+	 * SD card and being interrupted by the audio library, which will try to
+	 * read audio data from the SD card at the same time.
+	 */
+	AudioNoInterrupts();
 	File frame = animDir.openNextFile();
 	if (!frame) {
 		/* There are no frames anymore, the animation is complete. */
 		animDir.close();
+		AudioInterrupts();
 		return false;
 	}
 	frame.read(bitmap, 528);
 	frame.close();
+	AudioInterrupts();
 
 	lcd.clearDisplay();
 	lcd.drawBitmap(0, 0, bitmap, 84, 48, 1);
diff --git a/src/Speaker.cpp b/src/Speaker.cpp
new file mode 100644
index 0000000..d361f2e
--- /dev/null
+++ b/src/Speaker.cpp
@@ -0,0 +1,49 @@
+//
+// Created by Teo-CD on 22/10/23.
+//
+
+#include "Speaker.h"
+
+DMAMEM audio_block_t Speaker::audioMemory[audioMemReservation];
+bool Speaker::memoryInitialized = false;
+
+void Speaker::init() {
+	if (memoryInitialized)
+		return;
+	AudioStream::initialize_memory(audioMemory, audioMemReservation);
+	memoryInitialized = true;
+}
+
+void Speaker::playNewSound(int8_t ID) {
+	char filePath[20];
+	uint8_t rawID = getRawId(ID);
+
+	if (!SD.mediaPresent()) {
+		Com::sendComment("SD Card not present, cannot play sound");
+		return;
+	}
+	if (!isValidId(ID)) {
+		Com::sendComment("Unknown ID for sound : %d", rawID);
+		return;
+	}
+
+	if (sdWavSource.isPlaying())
+		sdWavSource.stop();
+
+	snprintf(filePath, 20, "%s/ENTRY.WAV",
+			 (isIdCharacter(ID) ? charDirs : promoDirs)[rawID]);
+
+	if (!sd.exists(filePath)) {
+		Com::sendComment("File %s not present, cannot play sound.", filePath);
+		return;
+	}
+	digitalWrite(pin_Audio_Amp_enable, HIGH);
+	sdWavSource.play(filePath);
+}
+
+bool Speaker::checkPlayingAndDisable() {
+	bool isPlaying = sdWavSource.isPlaying();
+	if (!isPlaying)
+		digitalWrite(pin_Audio_Amp_enable, LOW);
+	return isPlaying;
+}
diff --git a/src/main.cpp b/src/main.cpp
index 6615fef..4214db5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,6 +5,7 @@
 #include "Com.h"
 #include "LCD.h"
 #include "RFID.h"
+#include "Speaker.h"
 
 __attribute__((noreturn)) int main() {
 	pinMode(pin_DBG_LED_1, OUTPUT);
@@ -40,7 +41,6 @@ __attribute__((noreturn)) int main() {
 	Serial.begin(115200);
 	Com::sendComment("System is powered up, running set-up.");
 
-	/* TODO: Setups once module structure is up. */
 	RFID rfid;
 	digitalWrite(pin_NFC1_RST, HIGH);
 	rfid.init();
@@ -52,17 +52,28 @@ __attribute__((noreturn)) int main() {
 	digitalWrite(pin_LCD_RST, HIGH);
 	lcd.init();
 
+	/* Don't enable the amp here, only do it when playing to save some power. */
+	Speaker::init();
+	Speaker speaker;
+
+	Com::sendComment("All modules initialized, entering main loop.");
+
 	/* Main loop */
 	while (true) {
 		int8_t tagEvent;
 
 		/* Display first, in case the RFID communication delays it too much. */
 		lcd.checkAndDisplay();
+		speaker.checkPlayingAndDisable();
 
 		tagEvent = rfid.checkTags();
 		if (tagEvent) {
+			tagEvent = 4;
 			Com::sendFigUpdate(tagEvent);
+			/* Start the audio first because of the possible WAV parsing delay. */
+			speaker.playNewSound(tagEvent);
 			lcd.startNewAnim(tagEvent);
+
 		}
 
 		/* TODO: Drop delay, WFE+timer interrupt(s) ? */