update

user/audio-resume-monitor.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Restore audio after system resume
+
+[Service]
+Type=simple
+ExecStart=/home/ray/.config/systemd/user/audio-resume-monitor.sh
+Restart=always
+RestartSec=3
+
+[Install]
+WantedBy=default.target

user/audio-resume-monitor.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -uo pipefail
+
+readonly RECOVERY_SCRIPT="/home/ray/.config/systemd/user/audio-resume-recover.sh"
+
+gdbus monitor --system \
+    --dest org.freedesktop.login1 \
+    --object-path /org/freedesktop/login1 |
+while IFS= read -r line; do
+    case "${line}" in
+        *"PrepareForSleep"*"false"*)
+            printf 'audio-resume-monitor: resume detected\n'
+            "${RECOVERY_SCRIPT}"
+            ;;
+    esac
+done

user/audio-resume-recover.sh

@@ -0,0 +1,141 @@
+#!/usr/bin/env bash
+
+set -uo pipefail
+
+readonly ECHO_ADDRESS="44:D5:CC:C8:64:39"
+readonly ECHO_SINK_UUID="0000110b-0000-1000-8000-00805f9b34fb"
+readonly ECHO_CARD="bluez_card.44_D5_CC_C8_64_39"
+readonly ECHO_SINK="bluez_output.44_D5_CC_C8_64_39.1"
+readonly KOKORO_SERVICE="kokoro.service"
+readonly VOXTYPE_SERVICE="voxtype.service"
+readonly STARTUP_DELAY_SECONDS=3
+readonly RETRY_DELAY_SECONDS=2
+readonly MAX_RETRIES=15
+
+log() {
+    printf 'audio-resume: %s\n' "$*"
+}
+
+fail() {
+    local message="$1"
+
+    log "ERROR: ${message}"
+    notify-send --urgency=critical "Audio resume failed" "${message}" >/dev/null 2>&1 || true
+    exit 1
+}
+
+wait_for_pipewire() {
+    local attempt
+
+    for ((attempt = 1; attempt <= MAX_RETRIES; attempt++)); do
+        if pactl info >/dev/null 2>&1; then
+            return 0
+        fi
+        sleep "${RETRY_DELAY_SECONDS}"
+    done
+
+    return 1
+}
+
+echo_sink_exists() {
+    pactl list short sinks 2>/dev/null | awk -v sink="${ECHO_SINK}" '$2 == sink { found = 1 } END { exit !found }'
+}
+
+echo_sink_is_running() {
+    pactl list sinks 2>/dev/null | awk -v sink="${ECHO_SINK}" '
+        $1 == "Name:" { selected = ($2 == sink) }
+        selected && $1 == "State:" && $2 == "RUNNING" { found = 1 }
+        END { exit !found }
+    '
+}
+
+connect_echo_output() {
+    local attempt
+
+    bluetoothctl power on >/dev/null 2>&1 || true
+
+    for ((attempt = 1; attempt <= MAX_RETRIES; attempt++)); do
+        log "Connecting Echo output profile (attempt ${attempt}/${MAX_RETRIES})"
+        bluetoothctl connect "${ECHO_ADDRESS}" "${ECHO_SINK_UUID}" >/dev/null 2>&1 || true
+
+        if echo_sink_exists; then
+            pactl set-card-profile "${ECHO_CARD}" a2dp-sink >/dev/null 2>&1 || true
+            return 0
+        fi
+
+        sleep "${RETRY_DELAY_SECONDS}"
+    done
+
+    return 1
+}
+
+wait_for_kokoro() {
+    local attempt
+
+    for ((attempt = 1; attempt <= MAX_RETRIES; attempt++)); do
+        if test -S "${XDG_RUNTIME_DIR}/kokoro.sock"; then
+            return 0
+        fi
+        sleep "${RETRY_DELAY_SECONDS}"
+    done
+
+    return 1
+}
+
+verify_playback() {
+    local attempt
+
+    /usr/local/src/kokora/say "Audio resumed." || return 1
+
+    for ((attempt = 1; attempt <= MAX_RETRIES; attempt++)); do
+        if echo_sink_is_running; then
+            return 0
+        fi
+        sleep 1
+    done
+
+    return 1
+}
+
+main() {
+    sleep "${STARTUP_DELAY_SECONDS}"
+
+    # Do not leave an always-open pw-cat stream attached while rebuilding the
+    # Bluetooth and PipeWire graph.
+    systemctl --user stop "${KOKORO_SERVICE}" || true
+    bluetoothctl disconnect "${ECHO_ADDRESS}" >/dev/null 2>&1 || true
+
+    log "Restarting PipeWire and WirePlumber with the Echo disconnected"
+    systemctl --user restart pipewire.service pipewire-pulse.service wireplumber.service \
+        || fail "PipeWire or WirePlumber could not be restarted."
+
+    # pipewire.service wants Kokoro, so make sure it remains out of the way
+    # until the correct Echo output profile has been established.
+    systemctl --user stop "${KOKORO_SERVICE}" || true
+
+    wait_for_pipewire \
+        || fail "PipeWire did not become ready after resume."
+
+    connect_echo_output \
+        || fail "The Echo connected without a usable A2DP output."
+
+    # Voxtype keeps an ALSA output stream open for sound cues. Recreate it
+    # after PipeWire and the default output have been rebuilt.
+    log "Restarting Voxtype after the Echo output is ready"
+    systemctl --user restart "${VOXTYPE_SERVICE}" \
+        || fail "Voxtype could not be restarted."
+
+    log "Starting Kokoro after the Echo output is ready"
+    systemctl --user start "${KOKORO_SERVICE}" \
+        || fail "Kokoro could not be started."
+
+    wait_for_kokoro \
+        || fail "Kokoro started without creating its socket."
+
+    verify_playback \
+        || fail "The Echo sink appeared, but playback did not become active."
+
+    log "Audio recovery completed successfully"
+}
+
+main "$@"

user/graphical-session.target.wants/voxtype.service

@@ -0,0 +1 @@
+/usr/lib/systemd/user/voxtype.service

user/kokoro.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Persistent Kokoro CPU text-to-speech server
+After=pipewire.service pipewire-pulse.service wireplumber.service
+PartOf=pipewire.service pipewire-pulse.service wireplumber.service
+
+[Service]
+Type=simple
+Environment=HF_HUB_OFFLINE=1
+ExecStart=/usr/local/src/kokora/kokoro-server
+Restart=on-failure
+RestartSec=2
+
+[Install]
+WantedBy=default.target pipewire.service pipewire-pulse.service wireplumber.service

user/kokoro.service.d/echo-output.conf

@@ -0,0 +1,2 @@
+[Service]
+Environment=KOKORO_AUDIO_SINK=bluez_output.44_D5_CC_C8_64_39.1

user/pipewire-pulse.service.wants/kokoro.service

@@ -0,0 +1 @@
+/home/ray/.config/systemd/user/kokoro.service

user/pipewire.service.wants/kokoro.service

@@ -0,0 +1 @@
+/home/ray/.config/systemd/user/kokoro.service

user/wireplumber.service.wants/kokoro.service

@@ -0,0 +1 @@
+/home/ray/.config/systemd/user/kokoro.service