Working Example Demo

.gitignore

@@ -1,2 +1,3 @@
 /target
+/models
 Cargo.lock

.gitmodules

@@ -0,0 +1,9 @@
+[submodule "resources/vosk-api"]
+	path = resources/vosk-api
+	url = https://github.com/andreytkachenko/vosk-api.git
+[submodule "resources/openfst"]
+	path = resources/openfst
+	url = https://github.com/alphacep/openfst
+[submodule "resources/kaldi"]
+	path = resources/kaldi
+	url = https://github.com/kaldi-asr/kaldi

Cargo.toml

@@ -8,6 +8,8 @@ build = "build.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+cblas = "0.2.0"
+openblas-src = { version = "0.9.0", features = ["cache", "static"] }
 
 [build-dependencies]
 bindgen = "0.54.1"

build.rs

@@ -18,15 +18,10 @@ fn main() {
         .clang_arg("-x")
         .clang_arg("c++")
         .parse_callbacks(Box::new(bindgen::CargoCallbacks))
-        .opaque_type("std::.*")
-        .opaque_type("kaldi::.*")
-        .opaque_type("fst::.*")
-        .opaque_type("KaldiRecognizer")
-        .opaque_type("Model")
-        .opaque_type("SpkModel")
         .whitelist_type("KaldiRecognizer")
         .whitelist_type("Model")
         .whitelist_type("SpkModel")
+        .whitelist_function("vosk_.*")
         .rustified_non_exhaustive_enum("*")
         .no_copy(".*")
         .layout_tests(false)
@@ -40,6 +35,7 @@ fn main() {
 
     cc::Build::new()
         .warnings(false)
+        .extra_warnings(false)
         .static_flag(true)
         .cpp(true)
         .include("resources/openfst/src/include")
@@ -53,10 +49,14 @@ fn main() {
         .file("resources/openfst/src/lib/symbol-table.cc")
         .file("resources/openfst/src/lib/util.cc")
         .file("resources/openfst/src/lib/weight.cc")
-        .compile("libopenfst");
+        .file("resources/openfst/src/extensions/ngram/bitmap-index.cc")
+        .file("resources/openfst/src/extensions/ngram/nthbit.cc")
+        .try_compile("libopenfst")
+        .unwrap();
 
     cc::Build::new()
         .warnings(false)
+        .extra_warnings(false)
         .static_flag(true)
         .cpp(true)
         .include("resources/vosk-api/src")
@@ -65,7 +65,9 @@ fn main() {
         .file("resources/vosk-api/src/kaldi_recognizer.cc")
         .file("resources/vosk-api/src/model.cc")
         .file("resources/vosk-api/src/spk_model.cc")
-        .compile("libvosk");
+        .file("resources/vosk-api/src/vosk_api.cc")
+        .try_compile("libvosk")
+        .unwrap();
 
     let out_dir = env::var("OUT_DIR").unwrap();
     let contents = fs::read_to_string("resources/kaldi/src/lat/kaldi-lattice.cc").expect("Something went wrong reading the file");
@@ -84,6 +86,7 @@ fn main() {
 
     cc::Build::new()
         .warnings(false)
+        .extra_warnings(false)
         .static_flag(true)
         .cpp(true)
         .define("HAVE_OPENBLAS", "true")
@@ -99,17 +102,27 @@ fn main() {
         // .file("resources/kaldi/src/base/timer.cc")
 
         // matrix
-
         .file("resources/kaldi/src/matrix/kaldi-matrix.cc")
         .file("resources/kaldi/src/matrix/kaldi-vector.cc")
         .file("resources/kaldi/src/matrix/matrix-functions.cc")
         .file("resources/kaldi/src/matrix/optimization.cc")
+        .file("resources/kaldi/src/matrix/tp-matrix.cc")
+        .file("resources/kaldi/src/matrix/sp-matrix.cc")
+        .file("resources/kaldi/src/matrix/packed-matrix.cc")
+        .file("resources/kaldi/src/matrix/qr.cc")
+        .file("resources/kaldi/src/matrix/srfft.cc")
+        .file("resources/kaldi/src/matrix/compressed-matrix.cc")
 
         // cuda
         .file("resources/kaldi/src/cudamatrix/cu-matrix.cc")
         .file("resources/kaldi/src/cudamatrix/cu-allocator.cc")
         .file("resources/kaldi/src/cudamatrix/cu-common.cc")
-        // .file("resources/kaldi/src/cudamatrix/cu-math.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-array.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-vector.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-packed-matrix.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-sp-matrix.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-rand.cc")
+        .file("resources/kaldi/src/cudamatrix/cu-math.cc")
         
         // fstext
         .file("resources/kaldi/src/fstext/context-fst.cc")
@@ -119,17 +132,22 @@ fn main() {
 
         // feat
         // .file("resources/kaldi/src/feat/feature-fbank.cc")
-        // .file("resources/kaldi/src/feat/feature-functions.cc")
+        .file("resources/kaldi/src/feat/feature-functions.cc")
         .file("resources/kaldi/src/feat/feature-mfcc.cc")
         // .file("resources/kaldi/src/feat/feature-plp.cc")
         // .file("resources/kaldi/src/feat/feature-spectrogram.cc")
-        // .file("resources/kaldi/src/feat/feature-window.cc")
+        .file("resources/kaldi/src/feat/feature-window.cc")
-        // .file("resources/kaldi/src/feat/mel-computations.cc")
+        .file("resources/kaldi/src/feat/mel-computations.cc")
-        // .file("resources/kaldi/src/feat/online-feature.cc")
+        .file("resources/kaldi/src/feat/online-feature.cc")
-        // .file("resources/kaldi/src/feat/pitch-functions.cc")
+        .file("resources/kaldi/src/feat/pitch-functions.cc")
-        // .file("resources/kaldi/src/feat/resample.cc")
+        .file("resources/kaldi/src/feat/resample.cc")
         // .file("resources/kaldi/src/feat/signal.cc")
         // .file("resources/kaldi/src/feat/wave-reader.cc")
+        .file("resources/kaldi/src/feat/feature-plp.cc")
+        .file("resources/kaldi/src/feat/feature-fbank.cc")
+
+        // transform
+        .file("resources/kaldi/src/transform/cmvn.cc")
 
         // lm
         // .file("resources/kaldi/src/lm/arpa-file-parser.cc")
@@ -152,13 +170,21 @@ fn main() {
         // .file("resources/kaldi/src/rnnlm/sampling-lm-estimate.cc")
         // .file("resources/kaldi/src/rnnlm/sampling-lm.cc")
 
+        // hmm
+        .file("resources/kaldi/src/hmm/transition-model.cc")
+        .file("resources/kaldi/src/hmm/hmm-topology.cc")
+        .file("resources/kaldi/src/hmm/posterior.cc")
+
+        // gmm
+        .file("resources/kaldi/src/gmm/diag-gmm.cc")
+
         // decoder
         // .file("resources/kaldi/src/decoder/decodable-matrix.cc")
         // .file("resources/kaldi/src/decoder/decoder-wrappers.cc")
         // .file("resources/kaldi/src/decoder/faster-decoder.cc")
         // .file("resources/kaldi/src/decoder/grammar-fst.cc")
         .file("resources/kaldi/src/decoder/lattice-faster-decoder.cc")
-        // .file("resources/kaldi/src/decoder/lattice-faster-online-decoder.cc")
+        .file("resources/kaldi/src/decoder/lattice-faster-online-decoder.cc")
         // .file("resources/kaldi/src/decoder/lattice-incremental-decoder.cc")
         // .file("resources/kaldi/src/decoder/lattice-incremental-online-decoder.cc")
         // .file("resources/kaldi/src/decoder/lattice-simple-decoder.cc")
@@ -167,84 +193,87 @@ fn main() {
 
         // nnet3
         .file("resources/kaldi/src/nnet3/am-nnet-simple.cc")
-        // .file("resources/kaldi/src/nnet3/attention.cc")
+        .file("resources/kaldi/src/nnet3/attention.cc")
-        // .file("resources/kaldi/src/nnet3/convolution.cc")
+        .file("resources/kaldi/src/nnet3/convolution.cc")
         .file("resources/kaldi/src/nnet3/decodable-online-looped.cc")
         .file("resources/kaldi/src/nnet3/decodable-simple-looped.cc")
         // .file("resources/kaldi/src/nnet3/discriminative-supervision.cc")
         // .file("resources/kaldi/src/nnet3/discriminative-training.cc")
-        // .file("resources/kaldi/src/nnet3/natural-gradient-online.cc")
+        .file("resources/kaldi/src/nnet3/natural-gradient-online.cc")
         .file("resources/kaldi/src/nnet3/nnet-am-decodable-simple.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-analyze.cc")
+        .file("resources/kaldi/src/nnet3/nnet-analyze.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-attention-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-attention-component.cc")
         // .file("resources/kaldi/src/nnet3/nnet-batch-compute.cc")
         // .file("resources/kaldi/src/nnet3/nnet-chain-diagnostics.cc")
         // .file("resources/kaldi/src/nnet3/nnet-chain-diagnostics2.cc")
         // .file("resources/kaldi/src/nnet3/nnet-chain-example.cc")
         // .file("resources/kaldi/src/nnet3/nnet-chain-training.cc")
         // .file("resources/kaldi/src/nnet3/nnet-chain-training2.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-combined-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-combined-component.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-common.cc")
+        .file("resources/kaldi/src/nnet3/nnet-common.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-compile-looped.cc")
+        .file("resources/kaldi/src/nnet3/nnet-compile-looped.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-compile-utils.cc")
+        .file("resources/kaldi/src/nnet3/nnet-compile-utils.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-compile.cc")
+        .file("resources/kaldi/src/nnet3/nnet-compile.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-component-itf.cc")
+        .file("resources/kaldi/src/nnet3/nnet-component-itf.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-computation-graph.cc")
+        .file("resources/kaldi/src/nnet3/nnet-computation-graph.cc")
         .file("resources/kaldi/src/nnet3/nnet-computation.cc")
         .file("resources/kaldi/src/nnet3/nnet-compute.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-convolutional-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-convolutional-component.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-descriptor.cc")
+        .file("resources/kaldi/src/nnet3/nnet-descriptor.cc")
         // .file("resources/kaldi/src/nnet3/nnet-diagnostics.cc")
         // .file("resources/kaldi/src/nnet3/nnet-discriminative-diagnostics.cc")
         // .file("resources/kaldi/src/nnet3/nnet-discriminative-example.cc")
         // .file("resources/kaldi/src/nnet3/nnet-discriminative-training.cc")
         // .file("resources/kaldi/src/nnet3/nnet-example-utils.cc")
         // .file("resources/kaldi/src/nnet3/nnet-example.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-general-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-general-component.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-graph.cc")
+        .file("resources/kaldi/src/nnet3/nnet-graph.cc")
         .file("resources/kaldi/src/nnet3/nnet-nnet.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-normalize-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-normalize-component.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-optimize-utils.cc")
+        .file("resources/kaldi/src/nnet3/nnet-optimize-utils.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-optimize.cc")
+        .file("resources/kaldi/src/nnet3/nnet-optimize.cc")
         .file("resources/kaldi/src/nnet3/nnet-parse.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-simple-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-simple-component.cc")
-        // .file("resources/kaldi/src/nnet3/nnet-tdnn-component.cc")
+        .file("resources/kaldi/src/nnet3/nnet-tdnn-component.cc")
         // .file("resources/kaldi/src/nnet3/nnet-training.cc")
         .file("resources/kaldi/src/nnet3/nnet-utils.cc")
 
         // lat
         // .file("resources/kaldi/src/lat/compose-lattice-pruned.cc")
         // .file("resources/kaldi/src/lat/confidence.cc")
-        // .file("resources/kaldi/src/lat/determinize-lattice-pruned.cc")
+        .file("resources/kaldi/src/lat/determinize-lattice-pruned.cc")
         .file(&kaldi_lattice) // .file("resources/kaldi/src/lat/kaldi-lattice.cc")
         .file("resources/kaldi/src/lat/lattice-functions.cc")
-        // .file("resources/kaldi/src/lat/minimize-lattice.cc")
         // .file("resources/kaldi/src/lat/phone-align-lattice.cc")
-        // .file("resources/kaldi/src/lat/push-lattice.cc")
+        .file("resources/kaldi/src/lat/push-lattice.cc")
+        .file("resources/kaldi/src/lat/minimize-lattice.cc")
         .file("resources/kaldi/src/lat/sausages.cc")
         .file("resources/kaldi/src/lat/word-align-lattice-lexicon.cc")
         .file("resources/kaldi/src/lat/word-align-lattice.cc")
 
         // util
-        // .file("resources/kaldi/src/util/kaldi-holder.cc")
+        .file("resources/kaldi/src/util/kaldi-holder.cc")
         .file("resources/kaldi/src/util/kaldi-io.cc")
-        // .file("resources/kaldi/src/util/kaldi-semaphore.cc")
+        .file("resources/kaldi/src/util/kaldi-semaphore.cc")
-        // .file("resources/kaldi/src/util/kaldi-table.cc")
+        .file("resources/kaldi/src/util/kaldi-table.cc")
-        // .file("resources/kaldi/src/util/kaldi-thread.cc")
+        .file("resources/kaldi/src/util/kaldi-thread.cc")
         .file("resources/kaldi/src/util/parse-options.cc")
         .file("resources/kaldi/src/util/simple-io-funcs.cc")
-        // .file("resources/kaldi/src/util/simple-options.cc")
+        .file("resources/kaldi/src/util/simple-options.cc")
         .file("resources/kaldi/src/util/text-utils.cc")
 
+        //ivector
+        .file("resources/kaldi/src/ivector/ivector-extractor.cc")
+
         // online2
         .file("resources/kaldi/src/online2/online-endpoint.cc")
         .file("resources/kaldi/src/online2/online-feature-pipeline.cc")
         // .file("resources/kaldi/src/online2/online-gmm-decodable.cc")
         // .file("resources/kaldi/src/online2/online-gmm-decoding.cc")
-        // .file("resources/kaldi/src/online2/online-ivector-feature.cc")
+        .file("resources/kaldi/src/online2/online-ivector-feature.cc")
         // .file("resources/kaldi/src/online2/online-nnet2-decoding-threaded.cc")
         // .file("resources/kaldi/src/online2/online-nnet2-decoding.cc")
-        // .file("resources/kaldi/src/online2/online-nnet2-feature-pipeline.cc")
+        .file("resources/kaldi/src/online2/online-nnet2-feature-pipeline.cc")
         .file("resources/kaldi/src/online2/online-nnet3-decoding.cc")
         // .file("resources/kaldi/src/online2/online-nnet3-incremental-decoding.cc")
         // .file("resources/kaldi/src/online2/online-nnet3-wake-word-faster-decoder.cc")
@@ -252,5 +281,6 @@ fn main() {
         .file("resources/kaldi/src/online2/online-timing.cc")
         // .file("resources/kaldi/src/online2/onlinebin-util.cc")
         
-        .compile("libkaldi");
+        .try_compile("libkaldi")
+        .unwrap();
 }

cbits/vosk.h

@@ -1,3 +1 @@
-#include "model.h"
+#include "vosk_api.h"
-#include "kaldi_recognizer.h"
-#include "spk_model.h"

examples/demo.rs

@@ -12,29 +12,58 @@ pub fn main() {
     let audio_file_path = std::env::args().nth(1)
         .expect("Please specify an audio file to run STT on");
 
-    let audio_file = File::open(audio_file_path).unwrap();
+    let mut reader = audrey::open(audio_file_path).unwrap();
-	let mut reader = Reader::new(audio_file).unwrap();
 	let desc = reader.description();
 	assert_eq!(1, desc.channel_count(),
-		"The channel count is required to be one, at least for now");
+        "The channel count is required to be one, at least for now");
-
-    let audio_buf :Vec<_> = if desc.sample_rate() == SAMPLE_RATE {
-        reader.samples().map(|s| s.unwrap()).collect()
-    } else {
-        // We need to interpolate to the target sample rate
-        let interpolator = Linear::new([0i16], [0]);
-        let conv = Converter::from_hz_to_hz(
-            from_iter(reader.samples::<i16>().map(|s| [s.unwrap()])),
-            interpolator,
-            desc.sample_rate() as f64,
-            SAMPLE_RATE as f64);
-
-        conv.until_exhausted().map(|v| v[0]).collect()
-    };
-
 
     let model = VoskModel::new("./models/en-small");
-    let sess = model.create_session(Default::default());
+    let mut sess = model.create_session(Default::default());
+        
+    let mut buff: Vec<i16> = Vec::with_capacity(1600);
+    let mut samples_reader = reader.samples();
+
+    loop {
+        buff.clear();
+        
+        while let Some(s) = samples_reader.next() {
+            buff.push(s.unwrap());
+            if buff.len() >= 16000 {
+                break;
+            }
+        }
+
+        if buff.is_empty() {
+            break;
+        }
+
+        println!("feed {}", buff.len());
+
+        if model.feed(&mut sess, buff.as_slice()) {
+            println!("{}", model.get_result(&mut sess));
+        } else {
+            println!("{}", model.get_partial_result(&mut sess));
+        }
+    }
+
+    println!("{}", model.get_final_result(&mut sess));
+
+    // let audio_buf :Vec<_> = if desc.sample_rate() == SAMPLE_RATE {
+    //     .map(|s| s.unwrap()).collect()
+    // } else {
+    //     // We need to interpolate to the target sample rate
+    //     let interpolator = Linear::new([0i16], [0]);
+    //     let conv = Converter::from_hz_to_hz(
+    //         from_iter(reader.samples::<i16>().map(|s| [s.unwrap()])),
+    //         interpolator,
+    //         desc.sample_rate() as f64,
+    //         SAMPLE_RATE as f64);
+
+    //     conv.until_exhausted().map(|v| v[0]).collect()
+    // };
+
+
+    
 
     // audio_buf
 

resources/kaldi

@@ -0,0 +1 @@
+Subproject commit 99a8e612b18245022db5102014af08a8634a01da

resources/openfst

@@ -0,0 +1 @@
+Subproject commit 256f83e52112a5cd37e37a34beff2c4f0eae4660

resources/vosk-api

@@ -0,0 +1 @@
+Subproject commit de94ef553770919286c35dd4d8aed1df71d24be8

src/lib.rs

@@ -1,3 +1,10 @@
+extern crate cblas;
+extern crate openblas_src;
+
+#[used]
+#[no_mangle]
+pub static FLAGS_v: i32 = 0;
+
 mod ffi {
     #![allow(non_upper_case_globals)]
     #![allow(non_camel_case_types)]

src/model.rs

@@ -5,7 +5,7 @@ use crate::ffi;
 use crate::session::{VoskSession, VoskSessionConfig};
 
 pub struct VoskModel {
-    pub(crate) inner: ffi::Model,
+    pub(crate) inner: *mut ffi::VoskModel,
 }
 
 impl VoskModel {
@@ -13,44 +13,44 @@ impl VoskModel {
         let root = unsafe { CString::from_vec_unchecked(root.as_ref().to_string_lossy().as_bytes().to_vec()) };
 
         Self {
-            inner: unsafe { ffi::Model::new(root.as_c_str().as_ptr()) },
+            inner: unsafe { ffi::vosk_model_new(root.as_c_str().as_ptr()) },
         }
     }
 
     #[inline]
     pub fn create_session(&self, cfg: VoskSessionConfig) -> VoskSession {
-        VoskSession::new(&self.inner, cfg)
+        VoskSession::new(self.inner, cfg)
     }
 
     #[inline]
     pub fn feed(&self, sess: &mut VoskSession, data: &[i16]) -> bool {
-        unsafe { ffi::KaldiRecognizer_AcceptWaveform1(&mut sess.inner, data.as_ptr(), data.len() as _) }
+        unsafe { ffi::vosk_recognizer_accept_waveform_s(sess.inner, data.as_ptr(), data.len() as _) == 1 }
     }
 
     #[inline]
     pub fn get_result(&self, sess: &mut VoskSession) -> String {
-        let cstr = unsafe { CStr::from_ptr(ffi::KaldiRecognizer_Result(&mut sess.inner)) };
+        let cstr = unsafe { CStr::from_ptr(ffi::vosk_recognizer_result(sess.inner)) };
 
-        cstr.to_string_lossy().to_string()
+        cstr.to_string_lossy().to_owned().to_string()
     }
 
     #[inline]
     pub fn get_partial_result(&self, sess: &mut VoskSession) -> String {
-        let cstr = unsafe { CStr::from_ptr(ffi::KaldiRecognizer_PartialResult(&mut sess.inner)) };
+        let cstr = unsafe { CStr::from_ptr(ffi::vosk_recognizer_partial_result(sess.inner)) };
 
-        cstr.to_string_lossy().to_string()
+        cstr.to_string_lossy().to_owned().to_string()
     }
 
     #[inline]
     pub fn get_final_result(&self, sess: &mut VoskSession) -> String {
-        let cstr = unsafe { CStr::from_ptr(ffi::KaldiRecognizer_FinalResult(&mut sess.inner)) };
+        let cstr = unsafe { CStr::from_ptr(ffi::vosk_recognizer_final_result(sess.inner)) };
 
-        cstr.to_string_lossy().to_string()
+        cstr.to_string_lossy().to_owned().to_string()
     }
 }
 
 impl Drop for VoskModel {
     fn drop(&mut self) {
-        unsafe { self.inner.destruct() }
+        unsafe { ffi::vosk_model_free(self.inner) }
     }
 }

src/session.rs

@@ -79,23 +79,24 @@ impl VoskSessionConfig {
 }
 
 pub struct VoskSession {
-    pub(crate) inner: ffi::KaldiRecognizer
+    pub(crate) inner: *mut ffi::VoskRecognizer
 }
 
 impl VoskSession {
-    pub(crate) fn new(model: *const ffi::Model, cfg: VoskSessionConfig) -> Self {
+    pub(crate) fn new(model: *const ffi::VoskModel, cfg: VoskSessionConfig) -> Self {
         if let Some(_cfg) = &cfg.spk_root {
             unimplemented!()
             // VoskSession {
             //     inner: ffi::KaldiRecognizer::new1(model as *mut ffi::Model,  cfg.freq)
             // }
         } else if let Some(grammar) = &cfg.grammar {
-            VoskSession {
+            unimplemented!()
-                inner: unsafe { ffi::KaldiRecognizer::new2(model as *mut ffi::Model, cfg.freq, grammar.as_c_str().as_ptr()) }
+            // VoskSession {
-            }
+            //     inner: unsafe { ffi::KaldiRecognizer::new2(model as *mut ffi::Model, cfg.freq, grammar.as_c_str().as_ptr()) }
+            // }
         } else {
             VoskSession {
-                inner: unsafe { ffi::KaldiRecognizer::new(model as *mut ffi::Model, cfg.freq) }
+                inner: unsafe { ffi::vosk_recognizer_new(model as *mut ffi::VoskModel, cfg.freq) }
             }
         }
     }

src/speaker.rs

@@ -3,7 +3,7 @@ use std::path::Path;
 use std::ffi::CString;
 
 pub struct SpeakerModel {
-    pub(crate) inner: ffi::SpkModel
+    pub(crate) inner: *mut ffi::VoskSpkModel
 }
 
 impl SpeakerModel {
@@ -11,13 +11,13 @@ impl SpeakerModel {
         let root = unsafe { CString::from_vec_unchecked(root.to_string_lossy().as_bytes().to_vec()) };
 
         Self {
-            inner: unsafe { ffi::SpkModel::new(root.as_c_str().as_ptr()) }
+            inner: unsafe { ffi::vosk_spk_model_new(root.as_c_str().as_ptr()) }
         }
     }
 }
 
 impl Drop for SpeakerModel {
     fn drop(&mut self) {
-        unsafe { self.inner.destruct() }
+        unsafe { ffi::vosk_spk_model_free(self.inner) }
     }
 }