From Paris to Bordeaux, an interview with Deezer’s CTO

On this (special) occasion, the…

Akka as a bridge between REST and Kafka

Source: sciencing.com At Deezer, we love to play different chords, and to play with different technologies. Here we will present a solution to the problem of receiving millions of messages per day from a REST endpoint, processing them and pushing them back to Kafka. Inspired by The Reactive…

Detecting explicit content in songs

We’ve done some research about how to automatically detect explicit content in songs using only the music itself, and no additional metadata. Since it’s a sensitive and subjective issue, we did not want to use a black-box model, but rather build a modular system whose decisions can be traced back…

Private libraries in Android — how to manage them.

Part 1: Private libraries in Android — why you should consider it Part 2: Private libraries in Android — how to manage them In the first part of the series, we talked about the benefits of private libraries. On top…

‘Hey Siri, play my Flow on Deezer’ (part 1.): a product introduction

Voice interactive devices and services have significantly spread over the last four years. Consequently, voice assistants have become smarter and more sophisticated in their ability to handle new and complex demands. Moreover, voice assistance has also become an available feature in more and more devices. In 2018, Apple announced that…

I went to a conference on tech leadership, and you should too

In the past few weeks, I got a lot of those. For some reason in our community (or at least, in the subset of it I am currently involved with), a tech conference should be about learning actual technical skills (this…

Creating cron job vitals with Prometheus Pushgateway

Software Engineering is often all about automating what can be automated. That’s why we build cron jobs. cron is a utility that can be found in any Unix-like system, used to schedule tasks and commands that need to be executed repeatedly (i.e. every hour or every day). For example, we…

Women’s Voices — A Product Design Story

This post is part of a series about the women behind ‘Women’s Voices’, an in-app story created by Deezer for International Women’s Day: Part. 1: Women’s Voices — A Product Story Part. 2: Women’s Voices — A Brand Story Part. 3: Women’s Voices — A Data Story Part. 4: Women’s Voices — A…

Musicathon — Let’s Rock IT Innovation

Lyrics in French Hip-hop: curious? IAM, and you should be too.

Introduction In 2018, hip-hop was the most consumed genre in the United States. Since then, many analyses have dived deep in understanding the lyrics of those artists. However, as the pioneer of music streaming in France, we wanted to know more about how our local stars created their art. With the…

Women & Hip-Hop

Playlist inspired by the article: Women & Hip-Hop playlist - Listen now on Deezer | Music Streaming nielswww.deezer.com Introduction Hip-Hop was born in 1973 on 1520 Sedgwick Avenue in the Bronx, NYC. On January 4th 2018, it became the most consumed music genre in the United States, surpassing rock for the first time in history. In between those years, Hip-Hop and especially rap music…

Focus and Contrast

The Deezer logo as seen by someone with Protonapia (Red-Green Color-blindness). This image was created using the Chrome extension ChromeLens, which allows you to view a website as seen by someone with a variety of visual conditions, from color-blindness to those with partial sight. In the last article, we looked…

Improving your ingestion performance using the multidisciplinary approach

When it comes to solving a problem, developers often tend to use the technologies they’re comfortable with — the technologies they work with on a daily basis. Most of the time this is fine — we work within a specific scope in which this technology makes sense and has already…

Content Import en PHP chez Deezer

Deezer is a partner of the PHP Tour 2017 and several of our developers…

Women’s Voices — A Product Story

Part. 1: Women’s Voices — A Product Story Part. 2: Women’s Voices — A Brand Story Part. 3: Women’s Voices — A Data Story Part. 4: Women’s Voices — A…

Computing Royalties at Deezer

Deezer, as a streaming service, needs to pay royalties to music providers (record companies that make their music available on Deezer) as well as publishers and copyright collective management organisations so that the music you listen to gets payed at the right price according to the number of times it…

Introducing an improved Deezer experience on Xbox: access your favorite songs directly while…

A little context The Xbox Guide By pressing the Xbox button on your controller, you access the Xbox Guide. This is…

1001 ways to code your projects, 1 way to meet your needs

Have you ever noticed that there are about 1001 ways to do something, especially in software development? As I tell every developer who joins my team, especially interns or junior devs, no one knows everything and every solution should be considered. I was recently confronted with 1001 ways of doing…

Women’s Voices — A Product Marketing Story

Part. 1: Women’s Voices — A Product Story Part. 2: Women’s Voices — A Brand Story Part. 3: Women’s Voices — A Data Story Part. 4: Women’s Voices — A…

Lifting our 2,000 favorite tracks limit

Co-authored by Virgile Carron Adding tracks to favorites is one of Deezer’s most important features. It’s been here for ten years now. It’s the best way to save the content that you love and above all to help us suggest awesome music according to your tastes. It’s also the essence…

Engines revving for my first hackathon!

Since the previous…

What’s Right with Errors

You’re enjoying your app when suddenly an error message pops up, reading “Error: Something went wrong” Or you’re developing a new feature and attempting to interact with this outdated API that just returns NO when you call [Obscure.sharedManager doYourMagic] … And you’re frustrated!

ISMIR 2018 HAMR @ DEEZER HQ

In 2018, the September rally is pretty exciting :) For the first time in its history, Deezer is really proud to be partnering with ISMIR, the world’s leading research forum on processing, searching, organizing and accessing music-related data.

Deezer at ICASSP 2017

I went to ICASSP in New Orleans to present a (small) part of the research done at Deezer in the R&D team. It was the opportunity to exchange with the community and gather much valuable knowledge and ideas. Our work was about using Convolutional Neural Networks (CNNs) to solve a…

Real-time Music Visualization on the iPhone GPU