known·good

Tags

audio

2 notes

  1. No audio in Chrome Remote Desktop session on PipeWire: "ALSA: Couldn't open audio device: Host is down"

    In a Chrome Remote Desktop X session on PipeWire, apps were silent or failed with "Host is down". CRD puts PULSE_RUNTIME_PATH, PULSE_SINK and PIPEWIRE_REMOTE into the session, pointing at its own PipeWire, which had not started. Unset them before dbus-launch, bridge system PipeWire to CRD's FIFO, check sink volume.

  2. 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.