AI models shared registry + Code cleanup + Better async handling + Some fixes, etc
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62 changed files with 1683 additions and 1239 deletions
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@ -1,47 +1,50 @@
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use once_cell::sync::OnceCell;
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use vosk::{DecodingState, Model, Recognizer};
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use vosk::{DecodingState, Recognizer};
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use std::sync::Arc;
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use parking_lot::Mutex;
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use std::sync::Mutex;
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// use crate::config::VOSK_MODEL_PATH;
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use crate::{stt::vosk_models, i18n, config};
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use crate::{vosk_models, i18n, config, models};
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use crate::models::vosk::VoskModel;
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use crate::DB;
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static MODEL: OnceCell<Model> = OnceCell::new();
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// the model Arc keeps the vosk::Model alive for the recognizers
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static VOSK_MODEL: OnceCell<Arc<VoskModel>> = OnceCell::new();
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static WAKE_RECOGNIZER: OnceCell<Mutex<Recognizer>> = OnceCell::new();
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static SPEECH_RECOGNIZER: OnceCell<Mutex<Recognizer>> = OnceCell::new();
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pub fn init_vosk() -> Result<(), String> {
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if MODEL.get().is_some() {
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if VOSK_MODEL.get().is_some() {
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return Ok(());
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} // already initialized
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}
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let model_path = get_configured_model_path()?;
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info!("Loading Vosk model from: {}", model_path.display());
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let model_id = format!("vosk:{}", model_path.display());
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let model = Model::new(model_path.to_str().unwrap())
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.ok_or_else(|| format!("Failed to load Vosk model from: {}", model_path.display()))?;
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// load through registry (shared if anything else needs the same model)
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let vosk = models::vosk::load(
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models::registry(),
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&model_id,
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model_path.to_str().unwrap(),
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)?;
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// language-specific wake grammar
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let lang = i18n::get_language();
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let wake_grammar = config::get_wake_grammar(&lang);
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info!("Wake grammar for '{}': {:?}", lang, wake_grammar);
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//let mut recognizer = Recognizer::new(&model, 16000.0)
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// .ok_or("Failed to create Vosk recognizer")?;
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let mut wake_recognizer = Recognizer::new_with_grammar(&model, 16000.0, wake_grammar)
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let mut wake_recognizer = Recognizer::new_with_grammar(&vosk.model, 16000.0, wake_grammar)
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.ok_or("Failed to create wake word recognizer")?;
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wake_recognizer.set_max_alternatives(1); // required for confidence check later on
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wake_recognizer.set_max_alternatives(1);
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let mut speech_recognizer = Recognizer::new(&model, 16000.0)
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let mut speech_recognizer = Recognizer::new(&vosk.model, 16000.0)
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.ok_or("Failed to create speech recognizer")?;
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speech_recognizer.set_max_alternatives(config::VOSK_SPEECH_RECOGNIZER_MAX_ALTERNATIVES);
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speech_recognizer.set_words(config::VOSK_SPEECH_RECOGNIZER_WORDS);
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speech_recognizer.set_partial_words(config::VOSK_SPEECH_PARTIAL_WORDS);
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MODEL.set(model).map_err(|_| "Model already set")?;
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VOSK_MODEL.set(vosk).map_err(|_| "Model already set")?;
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WAKE_RECOGNIZER.set(Mutex::new(wake_recognizer)).map_err(|_| "Wake recognizer already set")?;
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SPEECH_RECOGNIZER.set(Mutex::new(speech_recognizer)).map_err(|_| "Speech recognizer already set")?;
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@ -50,17 +53,15 @@ pub fn init_vosk() -> Result<(), String> {
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pub fn recognize_wake_word(data: &[i16]) -> Option<(String, f32)> {
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let mut recognizer = WAKE_RECOGNIZER.get()?.lock().unwrap();
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let mut recognizer = WAKE_RECOGNIZER.get()?.lock();
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match recognizer.accept_waveform(data) {
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Ok(DecodingState::Running) => {
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// partials don't have confidence, skip them
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None
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}
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Ok(DecodingState::Finalized) => {
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let result = recognizer.result();
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// compensate confidence issues
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if let Some(alternatives) = result.multiple() {
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if let Some(best) = alternatives.alternatives.first() {
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if !best.text.is_empty() {
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@ -77,7 +78,7 @@ pub fn recognize_wake_word(data: &[i16]) -> Option<(String, f32)> {
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pub fn recognize_speech(data: &[i16]) -> Option<String> {
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let mut recognizer = SPEECH_RECOGNIZER.get()?.lock().unwrap();
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let mut recognizer = SPEECH_RECOGNIZER.get()?.lock();
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match recognizer.accept_waveform(data) {
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Ok(DecodingState::Finalized) => {
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@ -92,65 +93,16 @@ pub fn recognize_speech(data: &[i16]) -> Option<String> {
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pub fn reset_speech_recognizer() {
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if let Some(recognizer) = SPEECH_RECOGNIZER.get() {
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recognizer.lock().unwrap().reset();
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recognizer.lock().reset();
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}
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}
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pub fn reset_wake_recognizer() {
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if let Some(recognizer) = WAKE_RECOGNIZER.get() {
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recognizer.lock().unwrap().reset();
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recognizer.lock().reset();
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}
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}
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// pub fn recognize(data: &[i16], include_partial: bool) -> Option<String> {
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// let state = RECOGNIZER
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// .get()
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// .unwrap()
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// .lock()
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// .unwrap()
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// .accept_waveform(data);
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// match state {
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// Ok(ds) => {
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// match ds {
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// DecodingState::Running => {
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// if include_partial {
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// Some(
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// RECOGNIZER
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// .get()
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// .unwrap()
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// .lock()
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// .unwrap()
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// .partial_result()
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// .partial
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// .into(),
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// )
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// } else {
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// None
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// }
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// }
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// DecodingState::Finalized => {
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// // Result will always be multiple because we called set_max_alternatives
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// RECOGNIZER
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// .get()
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// .unwrap()
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// .lock()
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// .unwrap()
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// .result()
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// .multiple()
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// .and_then(|m| m.alternatives.first().map(|a| a.text.to_string()))
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// }
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// DecodingState::Failed => None,
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// }
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// },
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// Err(err) => {
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// error!("Vosk accept waveform error.\nError details: {}", err);
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// None
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// }
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// }
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// }
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fn get_configured_model_path() -> Result<std::path::PathBuf, String> {
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// try to get from settings
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if let Some(db) = DB.get() {
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@ -167,11 +119,10 @@ fn get_configured_model_path() -> Result<std::path::PathBuf, String> {
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let available = vosk_models::scan_vosk_models();
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let language = i18n::get_language();
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// try language match first
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let lang_code = match language.as_str() {
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"ru" => "ru",
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"en" => "us", // vosk uses "us" not "en"
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"ua" => "uk", // vosk uses "uk" not "ua"
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"en" => "us",
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"ua" => "uk",
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other => other,
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};
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@ -180,7 +131,6 @@ fn get_configured_model_path() -> Result<std::path::PathBuf, String> {
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return Ok(matched.path.clone());
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}
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// fallback to first available
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if let Some(first) = available.first() {
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info!("Auto-detected Vosk model (no language match): {}", first.name);
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return Ok(first.path.clone());
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@ -194,14 +144,3 @@ fn get_configured_model_path() -> Result<std::path::PathBuf, String> {
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Err("No Vosk models found".into())
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}
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// pub fn stereo_to_mono(input_data: &[i16]) -> Vec<i16> {
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// let mut result = Vec::with_capacity(input_data.len() / 2);
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// result.extend(
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// input_data
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// .chunks_exact(2)
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// .map(|chunk| chunk[0] / 2 + chunk[1] / 2),
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// );
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// result
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// }
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