From 7ca4f00c99c342b354f4d8695e57f345e94fc796 Mon Sep 17 00:00:00 2001
From: akdeb <deb2@illinois.edu>
Date: Sun, 23 Nov 2025 23:35:06 +0530
Subject: [PATCH] sample rate fix

---
 README.md                       | 5 -----
 firmware-arduino/src/Audio.cpp  | 2 +-
 firmware-arduino/src/Config.cpp | 5 +++--
 firmware-arduino/src/Config.h   | 1 +
 4 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index 226aa4d..2d293cc 100644
--- a/README.md
+++ b/README.md
@@ -52,15 +52,10 @@ Realtime AI Speech powered by SoTA AI voice models like **OpenAI Realtime API**,
 ## ⚡️ `With SOTA Realtime AI Speech Models on an ESP32`
 
 <div align="center" class="flex flex-row gap-4">
-
 <img src="assets/openai.png" alt="OpenAI Realtime API" width="45%">
-
 <img src="assets/gemini.png" alt="Gemini Live API" width="45%">
-
 <img src="assets/humeai.avif" alt="Hume AI EVI4" width="45%">
-
 <img src="assets/elevenlabs.svg" alt="Eleven Labs AI Agents" width="45%">
-
 </div>
 
 
diff --git a/firmware-arduino/src/Audio.cpp b/firmware-arduino/src/Audio.cpp
index 9d22744..13451c4 100644
--- a/firmware-arduino/src/Audio.cpp
+++ b/firmware-arduino/src/Audio.cpp
@@ -210,7 +210,7 @@ void micTask(void *parameter) {
     // Configure and start I2S input stream.
     auto i2sConfig = i2sInput.defaultConfig(RX_MODE);
     i2sConfig.bits_per_sample = BITS_PER_SAMPLE;
-    i2sConfig.sample_rate = 16000;
+    i2sConfig.sample_rate = MIC_SAMPLE_RATE;
     i2sConfig.channels = CHANNELS;
     i2sConfig.i2s_format = I2S_LEFT_JUSTIFIED_FORMAT;
     i2sConfig.channel_format = I2S_CHANNEL_FMT_ONLY_LEFT;
diff --git a/firmware-arduino/src/Config.cpp b/firmware-arduino/src/Config.cpp
index cdbaa84..75b69d0 100644
--- a/firmware-arduino/src/Config.cpp
+++ b/firmware-arduino/src/Config.cpp
@@ -33,11 +33,11 @@ volatile bool sleepRequested = false;
  */
 
 #ifdef DEV_MODE
-const char *ws_server = "192.168.68.119";
+const char *ws_server = "192.168.1.37";
 const uint16_t ws_port = 8000;
 const char *ws_path = "/";
 // Backend server details 
-const char *backend_server = "192.168.68.119";
+const char *backend_server = "192.168.1.37";
 const uint16_t backend_port = 3000;
 
 #elif defined(PROD_MODE)
@@ -64,6 +64,7 @@ volatile DeviceState deviceState = IDLE;
 
 // I2S and Audio parameters
 const uint32_t SAMPLE_RATE = 24000;
+const uint32_t MIC_SAMPLE_RATE = 16000;
 
 // ----------------- Pin Definitions -----------------
 const i2s_port_t I2S_PORT_IN = I2S_NUM_1;
diff --git a/firmware-arduino/src/Config.h b/firmware-arduino/src/Config.h
index 12f86ca..4ad72cd 100644
--- a/firmware-arduino/src/Config.h
+++ b/firmware-arduino/src/Config.h
@@ -71,6 +71,7 @@ extern const uint16_t backend_port;
 
 // I2S and Audio parameters
 extern const uint32_t SAMPLE_RATE;
+extern const uint32_t MIC_SAMPLE_RATE;
 
 extern const int BLUE_LED_PIN;
 extern const int RED_LED_PIN;