Ubuntu 18.04 and VOSK Speech Recognition API

Just some quick notes on how to install and use VOSK on Ubuntu 18.04 LTS.

1. Install using: pip3 install vosk
2. Get samples from https://github.com/alphacep/vosk-api/tree/master/python/example
3. Using ffmpeg create input audio files ffmpeg -i video.mkv -c:a pcm_s16le -ac 1 output.wav
   It will create a file of the following type output.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 48000 Hz
4. Export text to JSON python3 ./test_simple.py output.wav

Some notes on how to record audio from a terminal in Ubuntu 20.04LTS

Recently, we were trying to record the audio that was played on the system speakers using an Ubuntu 20.04LTS desktop. In the installation, there was no dedicated audio recorder installed and we did not want to install any. To record, we used the following command to get the list of…

2 November 2021

In "Bash"

How to import .ovpn files on Ubuntu 18.04 Gnome Network Manager

To import a .ovpn file in Gnome Network Manager you just need a simple command to enable the appropriate plugin: .. and as simple as that you can process your .ovpn files from the network manager as you would do with other VPN profiles.

10 April 2020

In "Bash"

Ubuntu 18.04: Cannot mount Micro SD DC I Class 10

Recently we tried to mount a Micro SD card that was formatted using the exFat format. To do so we used the build in card reader of a laptop that was running Ubuntu 18.04. To our disappointment, the OS was able to "see" the device as '/dev/mmcblk0' but it could…

15 March 2020

In "GNU/Linux"

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