by Marek Kabacinski

​1. Once you setup all video and audio devices, click the Settings button and Stream.
2. From Service list choose YouTube/YouTube Gaming
3. Click on the “link” button next to Stream Key label.

​4. After you log into your YouTube account, scroll to the bottom of the page and copy stream key.

​5. Paste your stream key to the OBS Studio and click OK to close the settings window.
6. Now you can click “Start Streaming”

by Pedro Firmino

​In the situation you are playing with a band and would like additional control to mix the audio from the ZM-1, you can also apply the following workflow for streaming:

Step 1
On the track receiving input from the ZM-1, add ZYLIA Studio PRO plugin.
Remember to disable the track master send

Step 5
Mix the separated tracks do your liking, change levels, add EQ/FX, etc
Since we are using the live input for streaming, we recommend to do the mixing based on the streamed output.

Step 6
Add Reastream track. Route the signal from the mixed tracks to this track, using previously mentioned method.
 
Step 7
Continue the setup process with OBS.

by Eduardo Patricio

Let’s talk about recording music!
This tutorial will address key points to help you improve your sound and get to a great demo with your ZYLIA MUSIC set. All you need is the ZM-1 mic, ZYLIA Studio application and your music.
 

Before going any further, the general tips / rules apply:

• Choose your song / piece of music well, based on your goals, target audience, and with awareness of the market you’re going in;
• Have it arranged and well rehearsed before recording;
• Choose a comfortable and quiet space for recording. 

​Ok, have said that, as usual, let’s break it down into steps: 

You can record in rooms with great or not-so-great acoustics.
Key things are:
 
A1 - Place the ZM-1 mic in a central position in the room;
A2 - Avoid standing near walls. This will help specially if your room doesn’t have great acoustics. 

​Once you have your recording you can adjust the volume of each instrument to get a better balance. You can also apply equalization to enhance desired or hide unwanted characteristics of each instrument.

EQ example

​If you record 2 guitars, say, with different functions (one focused on doing chords and the other more high-pitched patterns or solos), you can enhance the low end of the 1st and the high end of the 2nd one.

When you’re done with your mix, just export your demo and that’s it!

​To illustrate, here are 2 ZM-1 examples of ZM-1 recordings in completely different spaces, a martial arts practice room and in a church. Have a listen!

Recording done in a room with, err…, not-so-great acoustics

Recording done in a room with beautiful and style-matching acoustics

If you’d like to go further with mixing, you can either:
 

• Export the individual tracks of each instrument to bring them into a DAW
• Export the raw 19-channel file to import and mix them in a DAW, using ZYLIA Studio PRO plugin. 

Here are some related useful resources for you:
 
Tutorial: Recording an acoustic guitar with the ZM-1 mic
Tutorial: How to record classical music
ZYLIA Studio PRO DAW session templates
ZYLIA Studio PRO basics  
 

To support the creativity of musicians who are our current and future users, in the last few months we have focused on providing an even more user-friendly version of our well-known ZYLIA Studio software.

​A lot has changed In the newest version of ZYLIA Studio, let’s start with big things: 

by Eduardo Patricio

In general VR related workflows can be complex and everyone seems to be looking for standard solutions. Here, we will show you, step by step, how to prepare a 360 video with spatial audio in, possibly, the shortest way! 

Required gear:

• ZYLIA ZM-1 microphone array;
• A 360 camera (e.g. Insta 360 One X);
• A computer.

​After following steps A, B and C, you’ll have a video file with 1st order Ambisonics spatial audio that can be played on your computer with compatible video players (e.g. VLC) or uploaded to YouTube.

​Having said that, a small horizontal offset is not the end of the world 

With the gear in place, start recording both audio and video and clap in between the mic and the camera. The clap sound spike can be used to sync the footage later.

• Bring your files (the 19-channel audio from the ZM-1 and the video one from your camera) onto the DAW;
• Lower the video volume;
• Align the clap position;
• Trim the ends;
• Adjust the volume of the audio file;
• Add ZYLIA Ambisonics Converter Plugin to the audio track and adjust the settings;
• Change the master output to 4 channels;
• Render!

Here’s a video showing all the sub-steps in Reaper:

​Note
If you need to check how the recording sounds, add a binaural decoder plugin (e.g. IEM Binaural decoder) to the audio track, after ZYLIA Ambisonics Converter.
 

That’s it!
Now you can enjoy the spatial audio

• By playing it on your computer, using VLC player, for example (very few players will handle 360 video + Ambisonics correctly); or…
• By uploading it to YouTube. 

*Software tools used
​

Mounting:
https://www.amazon.com/Stage-MY550-Microphone-Extension-Attachment/dp/B0002ZO3LK/ref=sxbs_sxwds-stvp?keywords=microphone+clamp+arm&pd_rd_i=B0002ZO3LK&pd_rd_r=6860690f-2adc-4b00-a80e-de436939ed2b&pd_rd_w=GlE2J&pd_rd_wg=qrTTx&pf_rd_p=a6d018ad-f20b-46c9-8920-433972c7d9b7&pf_rd_r=GGS60M0DGQ5DQF44594V&qid=1575529629
 
https://www.amazon.com/Aluminum-Microphone-Swivel-Camera-Monitor/dp/B07Q2V6CBC/ref=sr_1_186?keywords=microphone+boom+clamp&qid=1575529342&sr=8-186

Amazon:
https://www.amazon.com/Neewer-Adjustable-Articulating-Mirrorless-Camcorders/dp/B07SV6NVDS/ref=sr_1_205?keywords=microphone+clamp+arm&qid=1575531393&sr=8-205
Allegro generic alternative for us to test: https://allegro.pl/oferta/ramie-przegubowe-11-magic-arm-do-kamery-8505530470
 

We are happy to announce the release of the ZYLIA ZM-1 driver for macOS. From now on, all macOS system versions will be handled by a single installer. This is not the only improvement. Users with macOS 10.15 now are carefully walked through the installation process in order to make sure that the ZM-1 driver is loaded properly. The driver itself has also been improved. We fixed a minor bug related to LED light control and handling audio devices by Google Chrome.

​What does it mean? We are working on technology that gives people the possibility to listen to a concert or live performance from any point in the audio scene.  With our technology you are able to record an audio scene from different points of the space – the center of the stage, from the middle of a string quartet, audience, or backstage. Audio recorded in such a way can be used together with virtual reality projections and allow the user to freely move around the space giving the natural experience of audio scene and the possibility to listen to it from different perspectives.

The first step of test recordings was to install 9 3rd order Ambisonics microphone arrays on the same level and record musicians playing their performance. Such an approach allowed the listener to move around those 9 points and listen to their music from different perspectives. However, microphones placement on a single level introduced limitations in terms of audio resolution in the vertical plane.

Since we like challenges we decided to increase the number of microphones to 53 and build an installation on five different levels. It allowed us to freely move in every direction of the recorded scene in a truly immersive experience. The second idea behind this test setup was to check the limits of Ambisonics recordings in order to achieve a fully navigable audio scene. We placed the microphones arrays densely in the recorded scene and we received a spatial audio image of very high resolution.

We used 53 19-channel mic arrays – which gave us 1007 audio channels recorded simultaneously. Microphones were connected to a USB hub and the recordings were operated via a single laptop.

The audio recorded from each microphone array was converted to 3rd order Ambisonics using our ZYLIA Ambisonics Converter plugin (it can be done in real-time or offline).  After the recording, we used our interpolation software. This software is a MaxMSP plugin, that generates 3rd order Ambisonics spheres based on the signal from all microphones in the position you are at the moment. When you put your headphones and VR headset and move around the space the algorithm in MaxMSP takes your position and interpolates 3D sound in the position you are at the moment.

We used 3rd order Ambisonics microphone arrays. It is important because the higher the order the more precision we get in the spatial localization of sound around the listener. We are able to recreate the sound with a very high spatial resolution which influences the audio quality - an extremely important aspect for listeners.

With this simple approach, you can record the natural audio scene for your VR/AR productions and use it right away without complicated work-flow in post-production. You can record live events and stream audio directly to the listener giving him the possibility to freely choose the position in this real-time recorded space for an ultimate immersive audio experience.

by Eduardo Patricio

Earlier this year (2019), during Easter, we recorded a string quintet concert* with 2 ZM-1 microphones. One in front of the ensemble and 1 behind it. Very simple and portable setup with powerful postproduction possibilities!

Here’s a quick example of the multi-track possibilities we have from the recordings:​

​Using ZM-1 microphones basically allows you to have multi-track recordings from single mics.
Here’s what we did for this project in 5 steps. 

1. We recorded the 19 channels from each ZM-1 directly onto DAW tracks on each laptop. The result was 2 uncompressed, 24-bit, 48KHz wave files.

2. After the recording, we loaded both multi-channel files onto a single DAW session, onto separate tracks. We synchronized the files manually using a clear transient sound (the classic "clap to sync").

3. We added ZYLIA Studio PRO plugin to the tracks containing the multi-channel files (one instance of the plugin for each). The plugin converts the recorded information into perfect sound spheres, from which you can extract sounds from any direction. 

4. We added virtual microphones, by clicking on the plus sign in the middle of the circle and defined their direction (in the horizontal and vertical planes) and polar patterns (width). Obs.: That means we basically set up a complex microphone arrangement after the recording, and one that can be tweaked or changed at any moment (!). 

NOTE: If you don’t know yet how to work with virtual microphones and ZYLIA Studio PRO, you can check the following additional resources:

• More detailed info on ZYLIA Studio PRO
• ZYLIA Studio PRO manual
• DAW templates for using ZYLIA Studio PRO
• How to configure ZYLIA Studio PRO session in Reaper 

4A. From the main microphone recordings, 7 virtual microphones were used as seen in the following screen capture:

​The virtual microphones Z1 – Z5 were narrow (shotgun-like) ones, pointing at each instrument and using S2 separation mode.
 
Z6 and Z7 form a wide stereo pair, pointing 45˚ up, to capture some of the overall sound and a great deal of reverberant sound.

4B. From the rear microphone recordings, 5 virtual microphones were used as seen in the following screen capture:

​Detailed configuration of each virtual microphone:
Z1: 0˚ azimuth, 33˚ elevation, 60˚ width;
Z2 and Z5 form a stereo pair with a sum of 90˚ azimuth, pointing up (-45˚ elevation), and with 60˚ width;
Z3 and Z4 form a stereo pair with a sum of 80˚ azimuth, pointing down (-51˚ elevation), and with 60˚ width.

5. We directed each virtual microphone to individual tracks in our DAW and carried on with a regular basic mixing strategy (leveling, panning and EQing). 

If you would like to move/copy all sessions and recordings from one device to another, first open the ZYLIA Studio directory. The default location is:

Windows: "C:/Users/<user_name>/AppData/Local/Zylia/ZYLIA Studio"
MacOS: "/Users/<user_name>/Library/Application Support/Zylia/ZYLIA Studio"

Copy the folders “calibration” “sessions” and also the file “ZS.sqlite” to a pen drive/ external disk.