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Project description
Rhasspy Wake Raven Hermes
Implements hermes/hotword
functionality from Hermes protocol using Rhasspy Raven.
Requirements
- Python 3.7
- Rhasspy Raven
Installation
$ git clone https://github.com/rhasspy/rhasspy-wake-raven-hermes
$ cd rhasspy-wake-raven-hermes
$ ./configure
$ make
$ make install
WAV Templates
Steps to record a custom wake word:
- Record yourself saying the wake word at least 3 times
- Trim silence around the audio and export 3 WAV files to a directory
- WAV format should be 16-bit 16Khz mono
- Pass
--keyword /path/to/directory
torhasspy-wake-raven-hermes
with the path to the directory with your WAV templates
You may pass more than one --keyword
with different WAV directories. It's recommended that you use --average-templates
to reduce CPU usage.
Running
$ bin/rhasspy-wake-raven-hermes <ARGS>
Command-Line Options
usage: rhasspy-wake-raven-hermes [-h] [--keyword KEYWORD [KEYWORD ...]]
[--probability-threshold PROBABILITY_THRESHOLD]
[--distance-threshold DISTANCE_THRESHOLD]
[--minimum-matches MINIMUM_MATCHES]
[--refractory-seconds REFRACTORY_SECONDS]
[--window-shift-seconds WINDOW_SHIFT_SECONDS]
[--dtw-window-size DTW_WINDOW_SIZE]
[--vad-sensitivity {1,2,3}]
[--current-threshold CURRENT_THRESHOLD]
[--max-energy MAX_ENERGY]
[--max-current-ratio-threshold MAX_CURRENT_RATIO_THRESHOLD]
[--silence-method {vad_only,ratio_only,current_only,vad_and_ratio,vad_and_current,all}]
[--average-templates]
[--udp-audio UDP_AUDIO UDP_AUDIO UDP_AUDIO]
[--examples-dir EXAMPLES_DIR]
[--examples-format EXAMPLES_FORMAT]
[--log-predictions] [--host HOST]
[--port PORT] [--username USERNAME]
[--password PASSWORD] [--tls]
[--tls-ca-certs TLS_CA_CERTS]
[--tls-certfile TLS_CERTFILE]
[--tls-keyfile TLS_KEYFILE]
[--tls-cert-reqs {CERT_REQUIRED,CERT_OPTIONAL,CERT_NONE}]
[--tls-version TLS_VERSION]
[--tls-ciphers TLS_CIPHERS]
[--site-id SITE_ID] [--debug]
[--log-format LOG_FORMAT]
optional arguments:
-h, --help show this help message and exit
--keyword KEYWORD [KEYWORD ...]
Directory with WAV templates and settings (setting-
name=value)
--probability-threshold PROBABILITY_THRESHOLD
Probability above which detection occurs (default:
0.5)
--distance-threshold DISTANCE_THRESHOLD
Normalized dynamic time warping distance threshold for
template matching (default: 0.22)
--minimum-matches MINIMUM_MATCHES
Number of templates that must match to produce output
(default: 1)
--refractory-seconds REFRACTORY_SECONDS
Seconds before wake word can be activated again
(default: 2)
--window-shift-seconds WINDOW_SHIFT_SECONDS
Seconds to shift sliding time window on audio buffer
(default: 0.02)
--dtw-window-size DTW_WINDOW_SIZE
Size of band around slanted diagonal during dynamic
time warping calculation (default: 5)
--vad-sensitivity {1,2,3}
Webrtcvad VAD sensitivity (1-3)
--current-threshold CURRENT_THRESHOLD
Debiased energy threshold of current audio frame
--max-energy MAX_ENERGY
Fixed maximum energy for ratio calculation (default:
observed)
--max-current-ratio-threshold MAX_CURRENT_RATIO_THRESHOLD
Threshold of ratio between max energy and current
audio frame
--silence-method {vad_only,ratio_only,current_only,vad_and_ratio,vad_and_current,all}
Method for detecting silence
--average-templates Average wakeword templates together to reduce number
of calculations
--udp-audio UDP_AUDIO UDP_AUDIO UDP_AUDIO
Host/port/siteId for UDP audio input
--examples-dir EXAMPLES_DIR
Save positive example audio to directory as WAV files
--examples-format EXAMPLES_FORMAT
Format of positive example WAV file names using
strftime (relative to examples-dir)
--log-predictions Log prediction probabilities for each audio chunk
(very verbose)
--host HOST MQTT host (default: localhost)
--port PORT MQTT port (default: 1883)
--username USERNAME MQTT username
--password PASSWORD MQTT password
--tls Enable MQTT TLS
--tls-ca-certs TLS_CA_CERTS
MQTT TLS Certificate Authority certificate files
--tls-certfile TLS_CERTFILE
MQTT TLS client certificate file (PEM)
--tls-keyfile TLS_KEYFILE
MQTT TLS client key file (PEM)
--tls-cert-reqs {CERT_REQUIRED,CERT_OPTIONAL,CERT_NONE}
MQTT TLS certificate requirements for broker (default:
CERT_REQUIRED)
--tls-version TLS_VERSION
MQTT TLS version (default: highest)
--tls-ciphers TLS_CIPHERS
MQTT TLS ciphers to use
--site-id SITE_ID Hermes site id(s) to listen for (default: all)
--debug Print DEBUG messages to the console
--log-format LOG_FORMAT
Python logger format
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