diff --git a/otherarch/tts_adapter.cpp b/otherarch/tts_adapter.cpp
index b69419871..ad7d2849c 100644
--- a/otherarch/tts_adapter.cpp
+++ b/otherarch/tts_adapter.cpp
@@ -731,7 +731,7 @@ static tts_generation_outputs ttstype_generate_ttscpp(const tts_generation_input
         printf("\nTTS Generated audio in %.2fs.\n",ttstime);
         std::vector<float> wavdat = std::vector(response_data.data, response_data.data + response_data.n_outputs);
         //audio_post_clean(wavdat);
-        last_generated_audio = save_wav16_base64(wavdat, ttscpp_runner->sampling_rate);
+        last_generated_audio = save_ulaw_wav8_base64(wavdat, ttscpp_runner->sampling_rate);
         output.data = last_generated_audio.c_str();
         output.status = 1;
         last_generation_settings_audio_seed = 0;
@@ -1144,7 +1144,7 @@ static tts_generation_outputs ttstype_generate_outetts(const tts_generation_inpu
             return output;
         }
 
-        last_generated_audio = save_wav16_base64(audio, t_sr);
+        last_generated_audio = save_ulaw_wav8_base64(audio, t_sr);
         ttstime = timer_check();
 
         printf("\nTTS Generated %d audio tokens in %.2fs.\n",(int) codes.size(),ttstime);
@@ -1228,7 +1228,7 @@ static tts_generation_outputs ttstype_generate_qwen3tts(const tts_generation_inp
 
         ttstime = timer_check();
         printf("\nTTS Generated audio in %.2fs.\n",ttstime);
-        last_generated_audio = save_wav16_base64(result.audio, result.sample_rate);
+        last_generated_audio = save_ulaw_wav8_base64(result.audio, result.sample_rate);
         output.data = last_generated_audio.c_str();
         output.status = 1;
         last_generation_settings_audio_seed = inputs.audio_seed;
diff --git a/otherarch/utils.h b/otherarch/utils.h
index cdd86e7ad..4fccd78cb 100644
--- a/otherarch/utils.h
+++ b/otherarch/utils.h
@@ -117,6 +117,7 @@ private:
     );
 };
 
+#pragma pack(push, 1)
 struct wav16_header {
     char riff[4] = {'R', 'I', 'F', 'F'};
     uint32_t chunk_size;
@@ -132,7 +133,9 @@ struct wav16_header {
     char data[4] = {'d', 'a', 't', 'a'};
     uint32_t data_size;
 };
+#pragma pack(pop)
 
+#pragma pack(push, 1)
 struct wav_ulaw_header {
     char     riff[4]        = {'R','I','F','F'};
     uint32_t chunk_size;              // 36 + data_size + 2 (for cbSize)
@@ -149,6 +152,7 @@ struct wav_ulaw_header {
     char     data[4]        = {'d','a','t','a'};
     uint32_t data_size;
 };
+#pragma pack(pop)
 
 std::string save_ulaw_wav8_base64(const std::vector<float> &data, int sample_rate);
 std::string save_wav16_base64(const std::vector<float> &data, int sample_rate);
\ No newline at end of file