Good understanding of SPE directory structure helps to better understand the inner workings of SPE and simplifies troubleshooting. It’s also useful for expert-level tuning of parameters of individual technologies and optimizing SPE configuration e.g. for deployments with shared resources, or deployments in virtualized environments, etc. The SPE directory structure looks like this (the tree depth is limited for better readability):…
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This article explains details and usage of SQL database scripts stored in SPE installation directory in /data/database subdirectory. These scripts are intended for setup and maintenance of SPE database for supported database types, currently SQLite and MariaDB (from SPE 3.46) / MySQL (up to SPE 3.45). Script types For each database type, there are two directories with two types of…
…Speech Engine documentation); stream not supported, technology model name to be used for processing. Output: audio file (WAV or RAW), together with xml/json report (in SPE only). Fig.: Comparison of original recording (david_noisy.wav, top half of image) and same recording processed by Denoiser (david_denoised.wav, bottom half of the image). Typical Questions Q: What do you recommend for deploying this technology?…
…user can add to language model of speech-to-text technology (better accuracy of KWS technology). Input audio file (format details – see Speech Engine documentation); stream not supported, technology model name (i.e. language code) to be used for phoneme transcription. Output In the process of transcribing speech-to-phonemes, the Phoneme Recogniser usually identifies individual speech segments and convert it to pronunciation. Example…
SPE has a simple built-in system of user accounts and user roles. This allows for flexible usage of SPE in your projects – you can use it e.g. for different individual applications (each application uses its own SPE user), or simply for different user roles within single application (standard users, administrators). Each user account has the following attributes defined: login…
SPE has a simple built-in system of task prioritization. This allows for flexible management of processing queue, which is useful especially in mass audio processing. For example, if there is a long queue of files waiting to be processed, and one needs to urgently process another bunch of files, these files can be sent for processing using higher priority… and…
This article explains the purpose and structure of SPE technologies configuration file technologies.xml, or technologies.json created by Phonexia Browser. SPE installation includes usually multiple speech technologies (e.g. Speaker Identification, Speech To Text, etc.) in various technological models (e.g. L4, XL4, etc.), or supporting various languages (e.g. 6th generation of EN_US, CS_CZ, etc.) available. You can select from these technologies/models those…
The server.technology_multithread_initialization setting in SPE configuration allows SPE to initialize instances of technologies during startup using multiple parallel threads. Default setting is OFF, i.e. instances of technologies are initialized using single thread, one-by-one. This allows easier tracking of eventual issues during SPE startup and better readability of technologies initialization log messages (only single initialization happens at a time). The downside…
SPE directly supports limited list of audio formats (codecs and containers), see Supported audio formats FAQ. Other audio formats must be converted using external tools. This conversion can be done either completely outside of SPE, before passing the files to SPE, or you can set up SPE to convert the files automatically. Then, depending on the capabilities of the conversion…
The SPE benchmark feature is great tool for quick and simple evaluation of processing speed directly on your hardware and using your audio files – simply call the …/benchmark endpoint corresponding to the technology you want to benchmark and wait for the result. The benchmark result summarizes the length of the processed speech, the processing time and the resulting Faster-than-Realtime…