Mixing Engineer

The mixing engineer combines the recorded tracks of a song, movie, or broadcast and balances them. He or she adjusts the volume, placement, and timbre of each sound so that the overall mix is clear, faithful to the artist’s or director’s intent, and compliant with the sound level standards of the broadcast medium.

What does a mixing engineer do?

He starts with the tracks that have already been recorded: vocals, instruments, dialogue, sound effects, and music. He adjusts the level of each track, positions them within the sound space, corrects their frequencies using equalization, controls their dynamics with compression, and adds reverb or other effects.

The mixing process is carried out in collaboration with the artist, the artistic director, or the film director until a final, approved version is achieved. Before exporting, the engineer measures the mix’s sound level, expressed in LUFS, and its peaks, to ensure the file meets the broadcaster’s specifications. The engineer then exports the final files—in stereo for music, and often in multichannel formats such as 5.1 or Dolby Atmos—for film and television.

With Dolby Atmos, the mixer no longer works solely by channels: in addition to a 9.1-channel foundation, it places up to 118 sounds as objects within the room’s space, which can include up to 64 separately powered speakers, according to Dolby’s specifications.

Mixing for music or video: What's the difference?

In music, a mixing engineer works on a track, often in a studio as part of an album project. The goal is to create a sound that conveys the track’s emotion and sounds good on all playback systems. On streaming platforms, the volume is standardized: Spotify defaults to -14 LUFS for every track. A mix that’s been boosted to sound louder than the others is therefore turned down during playback, and doesn’t gain anything from it.

In film and television, sound mixing combines dialogue, ambient sounds, sound effects, and music. It takes place in a mixing booth. For television, the CSA’s decision of July 19, 2011, sets the average sound level at -23 LUFS. Since 2013, the tolerance has been 1 LU for programs longer than two minutes, and dialogue must remain within plus or minus 7 LU of this value. In film, the position is called a mixer. In television, there is also the broadcast mixer, who mixes live.

Who does the mixing engineer work with?

In music, he works with the artist, the music producer, and the engineer who recorded the sessions. Once the mix has been approved, the files are sent tothe mastering engineer.

On set, he receives the work from the sound editor and the sound effects artist, and mixes under the director’s guidance. He is often assisted by an assistant mixer, who prepares the sessions and manages the takes. In film, this entire process is recognized collectively: the César Award for Best Sound is presented to a film’s sound team, from shooting through mixing.

What skills do you need to become a mixing engineer?

The key is listening: identifying what’s masking a voice, what lacks clarity, and what strains the ear. This is complemented by proficiency with digital audio software like Pro Tools, equalizers, compressors, and reverb, as well as a solid understanding of acoustics to ensure you can trust your listening environment.

The profession is also highly standardized: you need to know how to read a sound level meter, comply with each distributor’s delivery standards, and prepare different versions of the same mix—for example, a version without dialogue for dubbing abroad. Finally, it requires good taste, patience, and a genuine ability to communicate: you have to understand what an artist or director wants to hear, even when they can’t express it in technical terms.

How much does a mixing engineer earn?

In the film industry, the standard minimum wage for a sound mixer is €2,110.45 gross per week, based on a 39-hour workweek. A sound mixing assistant earns a minimum of €1,340.03 gross per week based on the same hours.

The pay rates for the film industry are based on the pay scale in the collective bargaining agreement for film production (IDCC 3097), established by the amendment of January 23, 2024, and unchanged for these positions in the pay scale in effect since May 1, 2026. Appendix III is an optional pay scheme reserved for films with a limited budget. The pay rates for concerts, where the sound engineer mixes live, are based on the collective bargaining agreement for the private performing arts sector (IDCC 3090), as amended on July 21, 2025.

These are minimum rates, which can be negotiated upward. In music studios, many mix engineers work as freelancers and set their rates per track or per day; in such cases, no standard rate schedule applies.

What kind of education do you need to become a sound engineer specializing in mixing?

Mixing is first learned through a general education in sound, and then through experience: people often start out as assistants in a studio or auditorium before mixing their own projects.

At ESRA, the ESRA Sound program is a three-year course of study leading to a state-accredited “ degree ” at the Bac+3 level, with more than 700 hours of instruction per year. After two years of core coursework common to all sound-related fields, two third-year specializations lead to a career in mixing: Music, which covers studio recording, mixing, and mastering; and Audiovisual Sound, which covers sound editing and 7.1 mixing.

The students mix real projects. They keep the school’s label, 24 Tracks Records, alive; its artists performed at the New Morning during the 2023ESRA Sound Night. In 2020, the label and the radio students also launched The Mission Mix Contest, a mixing competition in which all participants started with the same tracks, but faced different constraints depending on the group—such as a ban on automation or a limit of no more than three effects per track. The program is offered at campuses in Paris, the French Riviera, Brittany, and Brussels.

What career opportunities and prospects are there?

Mixing engineers work in recording studios, post-production companies, movie theaters, television stations, and radio stations. A large portion of this work is done on a freelance basis or as a temporary entertainment industry worker.

A career is built on reputation: you start as an assistant, then move on to becoming a mixer, and eventually specialize by musical genre or program type. Some go on to work in mastering, artistic production, or sound design. Among ESRA alumni, Damien Lazzerini (ESRA 2000), a sound engineer and mixer, has been nominated three times for the César Award for Best Sound: for *Elle*, directed by Paul Verhoeven, in 2017; for *Au revoir là-haut*, directed by Albert Dupontel, in 2018; and for *Arco*, directed by Ugo Bienvenu, in 2026.

Sources: Légifrance, collective bargaining agreements IDCC 3097 and IDCC 3090, and CSA Resolution No. 2011-29 of July 19, 2011; Spotify for Artists; Dolby Professional; France Travail’s ROME directory; Académie des César. Verified on September 24, 2026.

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