Here you have options to turn the Test Tone on, turn the Volume up and down, set the Tone’s frequency and even use the ‘CPU Usage Simulator’ to simulate how your audio will sound when Live is under varying levels of CPU usage. While in Live > Preferences > Audio, look for the ‘Test section. If you're using an external Audio Interface, make sure that this is connected to the computer. Once you have a driver installed, you should then be able to select it from the ‘Audio Output Device’ menu If on a Mac, you’re in luck as you can use the pre-installed output device named ‘Built-in Output’.įor windows, you may need to download an Asio driver such as ASIO4ALL. To connect your computer’s sound card to Ableton (or any DAW), and hear sound from it, you will need to have an ASIO sound card driver installed - which stands for ‘Audio Stream Input/Output’. That said, let’s now view the code to do that.To test this you can play Ableton’s ‘Test Tone’ (see below for details). Moreover, the custom attenuation will only works on spatial sounds (obviously) but also on sound connected to a Babylon.js mesh. Switching to custom attenuation will use Babylon.js distance computation based on JavaScript and will be slower. This then almost costs nothing on the performance side for 3D real-time rendering. It means it’s mainly handled by a dedicated audio chip on your device via native code (the browser). If you want to manage the attenuation (or distance model in Web Audio) using a specific algorithm, you can by-pass the native Web Audio attenuation using Babylon.js custom attenuation function. Creating your own custom attenuation function If you’re inside the space defined by the grey cone, you should hear the music, if not you’ll not hear it as the coneOuterGain is set to 0. You can play with this sample from our playground to better understand the output: Spatial Directional Sound SetLocalDirectionToMesh() is simply the orientation of the cone related to the mesh you’re attached to. Outer angle of the cone must be superior or equal to the inner angle, otherwise an error will be logged and the directional sound won’t work. coneOuterGain: volume of the sound when you’re outside the outer cone (between 0.0 and 1.0).coneOuterAngle: size of the outer cone in degree.coneInnerAngle: size of the inner cone in degree.Here is the code to create a sound or music playing as ambient (not spatialized): Note: all music samples demonstrated in the playground has been composed by David Rousset Creating an ambient sound or music aac can be loaded as well as long as the browser supports them by passing skipCodecCheck to true in the Sound creation options. The sound format supported is the one from the browser. It follows the simple & powerful philosophy of the rest of the engine as you’re going to see. It can be created by code or by loading a. The sound engine offers ambient sound, spatialized sound and directional sound. Still, if you’re using it on not compatible browser, it won’t break the rest of our engine, it will simply play no sound. So, to use our sound engine, you need to use a Web Audio compatible browser. We decided not to offer a fallback on the audio tag or other mechanism. Babylon.js sound engine is based on the Web Audio specification.
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