claude
99e73ea653
mavwaked has logged zero completed utterances in three days of journal, and the wake word is not why: the count was zero before it existed too. The fifine returns RMS 0.00004 over five seconds with its capture switch on and its ALSA volume at the full 496 of 496, so the silence is in the hardware and no flag reaches it. Measured over eight seconds of the same speech: fifine 0.00004, onboard ALC897 0.142 clipping at peak 1.0, USB camera 0.289 clipping, Scarlett Solo 0.003 clean. The two loud ones clip, so the quiet clean one wins. Named CARD=Gen rather than card 4, because a USB card number moves when something else is replugged and this daemon must not change ears quietly. Verified in the room: keyword heard at score 0.999, utterance complete in 1.65s, and she answered "сейчас 17 часов 24 минуты".
77 lines
3.8 KiB
Desktop File
77 lines
3.8 KiB
Desktop File
# mavwaked — always-on listening, on workpc where the microphone is.
|
|
#
|
|
# User unit, beside mavgpud.service and maven-voice-tunnel.service. It is a
|
|
# user unit because it needs his ALSA session and his ssh agent, and because
|
|
# it should stop when he logs out.
|
|
#
|
|
# The keyword is "Мэйвен" and the three -wake- flags are what require it
|
|
# (V-487 stage two). Without them anything spoken near the fifine becomes a
|
|
# turn, which voiceSender makes safe rather than expensive: it sends
|
|
# Surface=SurfaceVoice, capping every command at L0. That does not stop her
|
|
# answering out loud, which is the whole reason the keyword exists.
|
|
#
|
|
# The threshold is 0.999 and it is the binary's default, so it is not passed.
|
|
# It came from 65 minutes of held-out Russian speech through this same binary:
|
|
# 0.9 false wakes an hour against 2.8 at 0.99, for one lost render out of 126
|
|
# (docs/evals/2026-08-09-wake-word.md). If the room proves noisier than the
|
|
# corpus, read the scores out of this unit's journal and pass -wake-threshold.
|
|
# Do not lower it by guessing.
|
|
#
|
|
# A keyword shorter than 1.32s can be heard too late to be used, because the
|
|
# head scores 1.28s of audio and the VAD has closed the utterance by then.
|
|
# "Мэйвен, <request>" is unaffected. A bare "Мэйвен" is the case that fails.
|
|
#
|
|
# -vad-model is passed on purpose. Silero answers "is this frame speech" where
|
|
# the energy floor answers "is this frame loud". It declines white noise at
|
|
# the same RMS 0 frames to 68-99, and still hears all four spoken fixtures
|
|
# (docs/evals/2026-08-09-silero-vad.md). It costs 509us a frame, 1.7% of one
|
|
# core, and never touches the GPU. Drop the flag and the energy floor is back.
|
|
#
|
|
# -barge-in is NOT passed. The threshold is room-specific and this room has no
|
|
# number yet. Turn it on only after reading the "suppressed while speaking"
|
|
# means out of this unit's own journal, never by guessing.
|
|
#
|
|
# install: cp to ~/.config/systemd/user/ on workpc
|
|
# systemctl --user enable --now mavwaked.service
|
|
|
|
[Unit]
|
|
Description=Maven always-on listening (silero VAD, "Мэйвен" keyword)
|
|
# The tunnel is the only path to mavend and the only thing authenticating it.
|
|
Requires=maven-voice-tunnel.service
|
|
After=maven-voice-tunnel.service
|
|
|
|
[Service]
|
|
# The Scarlett Solo 4th Gen, and not the fifine. The fifine was the device
|
|
# here for three days and mavwaked never logged one utterance in them, because
|
|
# it returns RMS 0.00004 with its capture switch on and its ALSA volume at the
|
|
# full 496 of 496. That silence is in the hardware, so no flag reaches it.
|
|
#
|
|
# Named CARD=Gen and not card 4, because a USB card number moves when
|
|
# something else is replugged and this daemon must not change ears quietly.
|
|
# Not "default" either: that follows whatever pipewire last decided.
|
|
#
|
|
# plughw and not hw. mavwaked asks arecord for 16kHz mono, which is what the
|
|
# whole pipeline is canonical in. Neither microphone offers it, so bare hw
|
|
# dies on "Channels count non available" before a frame is read. plughw puts
|
|
# ALSA's downmix and resampler in front. Any replacement wants the same.
|
|
#
|
|
# The Scarlett measured RMS 0.003 against 0.14 on the onboard input, so its
|
|
# front-panel gain is the thing to raise if she mishears. That is a knob, not
|
|
# a control ALSA exposes. The two loud devices, the onboard ALC897 and the
|
|
# camera, both clip at peak 1.0 and are worse candidates, not better ones.
|
|
Environment=LD_LIBRARY_PATH=%h/.local/lib
|
|
ExecStart=%h/.local/bin/mavwaked \
|
|
-device plughw:CARD=Gen,DEV=0 \
|
|
-addr 127.0.0.1:9100 \
|
|
-lang ru \
|
|
-vad-model %h/.local/share/maven/models/silero_vad.onnx \
|
|
-wake-model %h/.local/share/maven/models/maven_wakeword.onnx \
|
|
-wake-mel %h/.local/share/maven/models/melspectrogram.onnx \
|
|
-wake-embed %h/.local/share/maven/models/embedding_model.onnx \
|
|
-onnx-lib %h/.local/lib/libonnxruntime.so
|
|
Restart=on-failure
|
|
RestartSec=5
|
|
|
|
[Install]
|
|
WantedBy=default.target
|