Tag Audio

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Linux - Audio notification after long running command has finished

The following small trick was too simple for a post in my eyes, but too helpful in the past for not sharing. From time to time a I have a long running command in my development process, that can be compiling, evaluating data or something else that takes longer than 5 minutes. In the most cases I will focus on something else in that time and check pretty late that the command has already finished. A simple solution for me is to play some audio signal after the command has finished.

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Linux - Convert all Ogg files in a directory to MP3

I need to convert all Ogg Vorbis files in a directory to MP3. I will create a small bash script that uses avconv to convert the audio files.

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Digitalise a vinyl record with Audacity on Linux

I am digitizing all my old vinyl records and I would like to show how I am doing that with Audacity on Linux.

Technics SL 1200 MK2

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A audio noise filter in JavaScript quantile based

I am a little bit interested in the possibilities of reading audio input from the web browser. So I have written a small audio noise filter based on frame wise speech / non-speech classifcation a few days ago. This filter was based on the research of the paper Quantile based noise estimation for spectral subtraction and Wiener filtering. The paper contains also an other approach, a quantile based noise spectrum estimation.

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A audio noise filter in JavaScript speech / non-speech classifcation

A few days ago I have written a small post about Reading Web Audio API with JavaScript. But no matter how silent I am acting on my working place, my computer is always producing the following noise.

JavaScript audio noise

I will try to create a small lightweight noise spectrum estimation and elimination filter in JavaScript that is based on the research of Quantile based noise estimation for spectral subtraction and Wiener filtering.

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Reading Web Audio API with JavaScript

I have read Visualizations with Web Audio API and just wanted to check on my own if I can build a small working example that can read the audio input from the Web Audio API.

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Digitalise a cassette tape with Linux

I have some old compact cassettes or tapes that I would like to digitalise before time is destroying the quality completely. I will document the digitization with this post.

Digitalise cassette tape

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