The program runs normally, but cannot be woken up (AIS-1931)

[HenTaiCJN]

Checklist

• [x] Checked the issue tracker for similar issues to ensure this is not a duplicate.
• [x] Provided a clear description of your suggestion.
• [x] Included any relevant context or examples.

Issue or Suggestion Description

I am using esp32s3 and the audio chip is es8388, esp-sr version is 2.0.2.

My feed_channel is four channels. I tried all the "MMNR" combinations, a total of 12 compilations, but none of them worked.

The program can start normally and has the following output

MC Quantized vadnet1:vadnet1_mediumv1_Speech_1_0.5_0.1, min speech:128 ms, min noise:992 ms, mode:0, threshold:0.500, channel:3, tigger:v1 (Feb 18 2025 12:00:55)
MC Quantized wakenet9: WakeNet9_v1h24_小爱同学_3_0.620_0.627, tigger:v3, mode:4, p:0, (Feb 18 2025 12:00:54)
------------detect start------------

But I can't wake up the device no matter how I talk. I printed the i2s_buff in the loop and confirmed that there was data.

i2s_buff[1485] = 4336
i2s_buff[1486] = 25120
i2s_buff[1487] = -6501
i2s_buff[1488] = 30079
i2s_buff[1489] = 14813
i2s_buff[1490] = 7459
i2s_buff[1491] = 29665
i2s_buff[1492] = -10286
i2s_buff[1493] = -1285
i2s_buff[1494] = -27349
i2s_buff[1495] = 11852
i2s_buff[1496] = 10892
i2s_buff[1497] = 1510
i2s_buff[1498] = -19009
i2s_buff[1499] = 10177

[HenTaiCJN]

I printed out afe_fetch_result_t* res, and the output was the same every time through the loop. I was confused by wake_word_length. Does this variable being 0 mean that the wake word failed to load?

AFE Fetch Result:
  data_size: 1024 bytes
  wakeup_state: 0
  wake_word_index: 0
  vad_state: 0
  trigger_channel_id: 2
  wake_word_length: 0 samples
  ret_value: 0

[sun-xiangyu]

Hi @HenTaiCJN , The ES8388 does not support 4-channel input; it should only support two microphone inputs. You can try "NM" or "MN". To determine the exact configuration, it is best to export the audio to an SD card for debug.