The WAV parser now walks chunk headers to find the data chunk instead of
scanning for the four bytes "data". A LIST chunk between fmt and data is
common, arecord and ffmpeg both write one, and its payload is free text that
can spell the word. A byte scan took that text for a chunk header and read the
comment as samples.
WAVHeader named WAVFromPCM in its error, so a caller of WAVHeader read the
wrong function. internal/capture calls it twice.
PCMFromWAV returns PCM that aliases the buffer it was given. That is the right
trade for a long recording and it was undocumented, so the doc comment now says
so and names the two ways a caller gets it wrong.
The TTS stub wrote 16000 three times. It reads the rate and the sample width
off audio.PCM16kMono now, so the tone stays in tune with the shape the seam
declares, and the sample write goes through binary.LittleEndian.
Identify computed the clip length twice to report it once.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The package comment, the embedder log and the startup line all said
enrolment was live and only recognition was blocked. Enroll embeds every
sample before it stores anything, so with no model on the box it fails
on the first sample with ErrDisabled and nothing is ever stored. List
then returns an empty list forever and Forget has nothing to delete. The
shipped state was three methods, all no-ops, announced as a working
half.
SpeakerConfig.Recognizes was written as the gate for this and never
called, so a block with enabled and no model_path wired everything and
skipped the one warning the operator needed. It is the gate now, and
that config shape logs why it stayed off.
Three smaller repairs. ErrDisabled had no case in speakerErr and reached
the surface as an opaque core failure, when it means the same thing
ErrUnknownMethod does. Forget read the row first and answered ErrNotFound
on a second call, so the layer documented as the one that must always
work reintroduced a failure for a voiceprint that was already gone.
And a row with unparsable metadata listed as a plausible profile named
after its own id with 0 samples, which is what a real minimal enrolment
looks like; it is reported as damaged now.
Found in review of #74.
Maven can now be told who someone is. She cannot yet tell who is speaking,
and this commit is careful to say so rather than pretend otherwise.
What works: profiles are enrolled from several deliberately recorded samples,
listed, and deleted. They live in the existing memory_vectors table under a
"speaker:" id prefix, so there is no migration; what that needed was a wider
interface than memory.Store, hence memory.Catalog with ByPrefix and Delete.
Delete is the load-bearing half — a voiceprint someone asked to be rid of has
to actually go, and a search-only store cannot do that. InMemoryStore.Insert
became an upsert by id to match what the persistent store already did.
What does not work, and why it is not faked: there is no speaker-embedding
model on this box. Sixteen ggufs in /mnt/hdd1/llms, all text; no ECAPA, no
x-vector, no titanet, no wespeaker, no .onnx anywhere under /mnt/hdd1. So
newSpeakerEmbedder returns nil, internal/speaker falls back to
speaker.Disabled, Identify answers ErrDisabled, and the daemon logs which
half is off at startup. The plan's "simple MFCC + GMM" floor is refused in
the package comment: MFCC cosine distance detects channel and loudness as
much as voice, and a biometric that is confidently wrong writes false claims
about named people into his memory. A bad floor is worse than none here.
Refused as well, and the reason is in enroll.go's doc comment: the plan asked
for unknown speakers to be enrolled on first interaction with a TTS "кто
это?". There is no request shape in the protocol that could express that.
Taking a biometric of whoever walks past the microphone does it to guests who
are not party to the exchange, and a synthesised question into a room is not
consent from whoever answers.
Authority: enrolment is AuthStepUp, because it is a deliberate sit-down act
that writes a biometric of a named person and never something done by voice
mid-conversation. Deletion is one rung lower at AuthWrite, deliberately
inverting the usual pattern — getting rid of a biometric must never be the
harder half. Listing is AuthRead and never returns the vectors themselves.
Off unless configured: no speaker block means the three methods answer
ErrUnknownMethod, so a default box has no wire path that takes a voiceprint.
make build and make test pass.
Vikunja #255
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TrVSBKe3RFDF4fGYKWYQnX
claude
kami