…models for STT and KWS (new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder) VI_VN_6 FR_FR_6 CS_CZ_6 (updated VAD, tuned LM) ES_6 (STT only) EN_US_A_6 (STT only) Fixed: Bad example voiceprints in SID4 L4 model Fixed: STT grapheme checking inconsistent behavior Fixed: STT NL_NL_5 (possibly also other 5th gen models) is much slower…
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…5th generation (RU_RU_5) of STT/KWS. STT word accuracy (WAcc) is increased up to 90,8 % (up to 7.1 p.p. improvement). Polish (Poland) new-generation PL_PL_6 model: It is an upgrade of previous 5th generation (PL_PL_5) of STT/KWS. STT word accuracy (WAcc) is increased up to 85.3 % (up to 18.7 p.p. improvement). Italian (Italy) new-generation IT_IT_6 model: It is an upgrade…
…STT model, put its name in the model parameter, like this: GET /technologies/stt?path=foobar.wav&model=<customized_model_name> Using customized STT model in command line STT To use customized STT model in command line STT, simply specify the new configuration file belonging to the customized STT model in the -config parameter. For example, assuming that original pl_pl_5 model was customized, specifying updated as the model…
…to use preferred phrases containing such ‘unknown words’, it’s necessary to add these words to the language model first, using LMC – see STT Language Model Customization tutorial then perform the transcription using the customized STT model, specifying the preferred phrases in the POST /technologies/stt or POST /technologies/stt/input_stream REST call. Note: The REST call body does not allow specifying custom…
Adding words to STT language model on-the-fly is possible in SPE 3.45 or newer as part of preferred phrases feature. The POST /technologies/stt or POST /technologies/stt/input_stream API calls actually serve two purposes: specify the actual preferred phrases (in the phrases part) specify words to be added to STT language model (in the dictionary part) Each part can be used independently,…
…TEXT (used for STT language model training) MSA is used in all formal writing such as official correspondence, literature, newspapers, webpages so there is no problem to accumulate loads of texts, but it will be more formal and far from spontaneous speech Support for MSA in Phonexia products Name LID L4 STT Description Arabic (MSA) arb — Modern Standard Arabic,…
…numbers conversion is based on set of grammar rules, describing how the conversion should work. Conversion rules are stored in numeric.pegjs file, located in grm subdirectory inside the STT model directory. For example: in Czech 6th generation STT it’s located in {SPE_directory}/bsapi/stt/data/models_cs_cz_6/grm in Spanish 6th generation STT it’s located in {SPE_directory}/bsapi/stt/data/models_es_6/grm Can it be extended or tuned? You can edit…
About STT Phonexia Speech to Text (STT) converts speech in audio signals into plain text. Technology works with both acoustics as well as dictionary of words, acoustic model and pronunciation. This makes it dependent on language and dictionary – only some set of words can be transcribed. As an input, audio file or stream is needed, together with selection of…
A: Please see List of supported STT Languages. For more details, see STT technology documentation….
A: Similarly as human, the ASR (STT) engine is doing the adaptation to an acoustic channel, environment and speaker. Also the ASR (STT) engine is learning more information about the content during time, that is used to improve recognition. The dictate engine, also known as on-the-fly transcription, does not look to the future and has information about just a few…
…in root of SPE installation (see above). The below example shows shared customized STT CS_CZ_6 model. Location of shared directory can be modified using server.shared.path option in SPE configuration file. This might be useful in complex network infrastructure, multi-SPE deployments, and similar advanced configurations. shared └── bsapi └── stt ├── data │ └── models_cs_cz_6_customized └── settings ├── stt_cs_cz_6_customized.bs └── stt_cs_cz_6_customized_online.bs…
…outputs The outputs can contain the following special tokens: Token (5th STT generation and newer) Token (legacy STT generations) Meaning <segment> <s> start of utterance </segment> </s> end of utterance <silence/> _SILENCE_ or <sil/> silent part (or no speech detected) <null/> _DELETE_ time slot should not go to one-best output Realtime stream processing output modes NOTE: Only single-channel (mono) audio…
…sentence. So, following the How to configure STT realtime stream word detection parameters article, we create a stt_cs_cz_5_online.bs.usr text file along the original stt_cs_cz_5_online.bs configuration file in <SPE directory>/bsapi/stt/settings directory and put the following lines in it (changing the forward extension parameter from default 750 to 1500): [vad.online_segmenter:SOnlineVoiceActivitySegmenterI] forward_extensions_length_ms=1500 Then after restarting SPE – and optionally checking in SPE log…
One of the improvements implemented since Speech Engine 3.24 is neural-network based VAD, used for word- and segment detection. This article describes the segmenter configuration parameters and how they are affecting the realtime stream STT results. The default segmenter parametrs are as shown below: [vad.online_segmenter:SOnlineVoiceActivitySegmenterI] backward_extensions_length_ms=150 forward_extensions_length_ms=750 speech_threshold=0.5 Backward- and forward extension are intervals in miliseconds, which extend the part…
…Browser, FAQ Speech Platform Permalink Q: What is the difference between on-the-fly and off-line type of speech to text transcription (STT)? A: Similarly as human, the ASR (STT) engine is doing the adaptation to an acoustic channel, environment and speaker. Also the ASR (STT) engine is learning more information about the content during time, that is used to improve recognition….