es8311
1 note
- M5Stack Cardputer-ADV plays a loud constant whine over all audio (ES8311, Arduino M5Unified)
On a Cardputer-ADV with custom Arduino firmware, every sound (test tone or MP3) had a loud constant whine on top. The speaker ran a mono I2S frame, so BCLK was half what M5Unified's fixed ES8311 clock divider expects. Setting spk_cfg.stereo = true fixed it.