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Interspeech 2020 Monday

October 25, 2020

Interspeech is overwhelming as usual. Thosands of papers and ideas, lives and thoughts. On one hand I kind of like online format when you can participate in discussions sitting at...

Vosk/Kaldi French model

October 21, 2020

Recently some good news happened in Kaldi word, essentially, LINTO project released their French model 2.0. This model is trained on 7100 hours according to documentation and looks a bit...

Status of Vosk in October 2020

October 07, 2020

When you work on things day to day you lose the overall picture very quickly. We’ve been actively training models and fixing things here and there and adding new platforms....

ML datasets are not relevant anymore

August 14, 2020

We have started promoting data collection for open source speech recognition at Voxforge project in 2007. It has been a great time before the speech recognition revolution but even then...

Vosk/Kaldi German acoustic model for callcenter and broacast transcription

August 09, 2020

There many open source German models already around, unfortunately, most of them are not perfectly trained. Here is a review of the current state and some information about new German...

Wav2Vec and other audio embeddings

July 01, 2020

Reading recent Facebook paper on audio embeddings wav2vec 2.0: A Framework for Self-Supervised Learning of Speech Representations by Alexei Baevski, Henry Zhou, Abdelrahman Mohamed, Michael Auli I wonder how accurate...

Opus and MP3 for speech recognition

June 09, 2020

Recently got discussion what is worse for telephony audio compression - opus or mp3. I was under impression that opus is unconditionally better than mp3, but it doesn’t seem the...

Kaldi models testing

June 05, 2020

Many models and datasets become available recently, testing models against datasets becomes more complicated and in the same time more fun. Recenly Kaldi Active Grammar Project released some new models...

Lookahead composition in Kaldi and Vosk

March 27, 2020

In 2019 AlphaCephei has made quite some good progress. We have introduced a project called Vosk which is meant to be a portable API for speech recognition for variety of...

Spectre and deep learning

November 28, 2019

I noticed a big slowdown in RELU layer performance recently, essentially the RELU operation can now take up to 10% in the total CPU count. This is with kernel 4.15....

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