Manual Test case - High Fidelity Audio Rendering

test-case/manual/Hi_Fi_Audio_playback.md

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+# High Fidelity Audio Rendering for 3.5mm JACK and USB-A/USB-C Endpoints in Linux
+Verify High Fidelity Audio Rendering for 3.5mm JACK and USB-A/USB-C Endpoints in Linux
+
+## Preconditions
+1. The system is powered on.
+2. A Linux-based system with 3.5mm audio JACK and USB-A/USB-C is available.
+3. High-quality audio files for testing are available.
+4. Ensure the appropriate audio topology file (96kHz/192kHz supported) is configured.
+
+## Test Description
+* Verification of high fidelity audio rendering for 3.5mm JACK and USB-A/USB-C endpoints in Linux.
+* Playback should be smooth without any glitches or noise.
+
+## Playback via 3.5mm JACK Headset
+1. Clear the dmesg log:
+    ```bash
+    sudo dmesg -c
+    ```
+2. Plug the 3.5mm audio jack into the DUT.
+3. Play a high-quality 96kHz audio file:
+    ```bash
+    time aplay -Dhw:0,0 -c 2 -r 96000 -f S24_LE /tmp/sample_96KHz.wav -d 10
+    ```
+4. Check the dmesg log:
+    ```bash
+    dmesg | grep -E "snd|sof|soc" | grep -i error
+    ```
+5. Play a high-quality 192kHz audio file:
+    ```bash
+    time aplay -Dhw:0,0 -c 2 -r 192000 -f S24_LE /tmp/sample_192KHz.wav -d 10
+    ```
+6. Check the dmesg log:
+    ```bash
+    dmesg | grep -E "snd|sof|soc" | grep -i error
+    ```
+7. Repeat steps 2-6 for USB-A/USB-C headsets.
+
+## Expected Results
+1. No audio-related errors observed in the dmesg log.
+2. The 3.5mm JACK device should be listed.
+3. Terminal output rate = 96000 and format = S24_LE, real time is nearly equal to mentioned playback duration (i,e. 10 sec)
+4. No audio errors or failures should be present in the dmesg log.
+5. Terminal output rate = 192000 and format = S24_LE, real time is nearly equal to mentioned playback duration (i,e. 10 sec)
+6. No audio errors or failures should be present in the dmesg log.
+7. Results should be the same as steps 2 to 6.