6 steps to creating your Sonic Reference - Step 6: How GLM works – a deep technical dive

null 6 steps to creating your Sonic Reference - Step 6: How GLM works – a deep technical dive

6 steps to creating your Sonic Reference - Step 6: How GLM works – a deep technical dive


To prepare for the official launch of Genelec’s new GLM 4 loudspeaker manager software, this series of 6 tutorials will guide you through every stage required to setup, calibrate and control a studio monitoring system so that it provides a true ‘Sonic Reference’, helping you produce mixes that translate consistently to other rooms and playback systems.

Aimed at engineers, creatives, and anyone who cares deeply about audio quality, this series will help your material sound exactly as you intended it – irrespective of how it is being distributed and consumed.

In this final tutorial, Genelec R&D director Aki Mäkivirta gives his expert insight into the principles of acoustic calibration, how and why GLM was developed, and the design philosophy that underpins it. He’ll be talking about both the history of room calibration and the theory of GLM operation, including:

• Stereophonic reproduction and virtual sound images
• Shared agreements about the reproduction system
• Monitoring loudspeakers and the room as a system
• Gear needed: measurement microphone, mic pre, measurement and analysis tools
• Methods of measuring acoustics, from history to present
• What needs to be calibrated: sound colour, time of flight, level
• How these best practices are applied in GLM 4

Whether you’re a seasoned GLM user, or you’re simply looking to elevate the quality and reliability of your mixes, this series will give you the guidance you need to help take your work to the next level. Attendees are actively encouraged to ask questions and participate in the Q&A session at the end of each tutorial.

Immediately after each session, participants will get the chance to answer a series of online questions about the tutorial. Everyone successfully passing 4 or more modules will then receive a certificate, and will also be entered into a prize draw to win a pair of Genelec RAW 8320 Smart Active Monitors and GLM kit.

Register here


An intermediate knowledge of GLM is required. Access to Genelec Smart Active Monitors and GLM software is an advantage, but not essential.

Meet the Presenter

Aki Mäkivirta_

Aki joined Genelec in 1995, and brought huge expertise in Digital Signal Processing from his previous role at the Nokia Research Centre. Having skilfully shown us how he could replace the analogue filters of our iconic 1031A monitor with entirely digital processing, Aki joined our R&D team to pioneer the creation of the original 8200 range – our very first Smart Active Monitors –finally becoming R&D director in 2013. Aki is universally recognised throughout the audio industry as a multi-talented technology leader, a published researcher and a knowledgeable lecturer, and he has greatly contributed to our global success and to many technical innovations in his field of expertise.