Audio Profiler module

The Audio Profiler module monitors the performance of the audio system in your application, such as the total load and voice counts.

The Audio Profiler in the Profiler Window

The Audio Profiler module’s chart tracks the time spent on the audio in your application. The timings are divided into four categories. To change the order of the categories in the chart, you can drag and drop them in the chart’s legend. You can also click a category’s colored legend to toggle its display.

Chart	Description
Playing Audio Sources	The total number of audio sources playing in the Scene at the frame selected. This is useful to monitor to see if the audio is overloaded.
Audio Voices	The number of audio (FMOD channels) voices used in the selected frame.
Total Audio CPU	The amount of CPU usage the audio used in the selected frame.
Total Audio Memory	The amount of RAM the audio engine used in the selected frame.

Module details pane

When you select the Audio Profiler module, the details pane below it displays a breakdown of the audio data for the selected frame. There are two views you can use to inspect the audio profiler data: Simple and Detailed. To change the display, use the top-left dropdown in the details pane (set to Simple by default).

Simple view

The Simple view contains the following information about the audio data for the frame you selected.

Data	Description
Total Audio Sources	Total number of audio sources in the Scene.
Playing Audio Sources	Total number of audio sources playing in the Scene
Paused Audio Sources	The total number of paused audio sources in the Scene.
Audio Clip Count	Total number of audio clips in the Scene.
Audio Voices	The total number of audio channels (FMOD channels) your Project uses.
Total Audio CPU	The total amount of CPU the audio uses.
DSP CPU	The amount of CPU your Project uses by mixing, audio effects, and decompression of non-streamed sounds that have the Compressed In Memory load type. This does not cover the CPU required for sounds that Unity decodes in the background whose load type is Decompress On Load and have the Load In Background flag checked.
Streaming CPU	The amount of CPU your Project uses to stream the audio in your application.
Other CPU	General CPU overhead not covered by the above.
Total Audio Memory	The amount of memory the audio uses in your Project.
Streaming File Memory	The amount of memory that audio files with the load type of Streaming use for short-term buffering of compressed audio data as it is progressively read from disk.
Streaming Decode Memory	The amount of memory that audio files with the load type of Streaming use for buffering the decoded sample stream.
Sample Sound Memory	The amount of memory that audio files with the load type of Decompress On Load use for the decompressed sample data. Note: Unity pools the memory that the audio system allocates and it keeps growing until it reaches saturation over the run time of your application. The audio system internally reuses the allocated memory, which cannot be compacted during runtime.
Other Memory	Overhead caused by various subsystems in the audio system.

Detailed view

The Detailed view contains all of the information in the Simple view, and additionally contains detailed per-frame logging of audio events. You can view these either as Channels, Groups, or Channels and Groups. To open this view, open the dropdown at the top of the module details pane, select Detailed, and then select one of the views from the toolbar at the top of the pane.

The Groups view shows the hierarchy of the buses in the audio mixer. The Channels and Groups view displays this information alongside information about the playing sounds.

The Audio Profiler Channel and Groups view

Select the Reset play count on play to reset the number in the Plays column the next time you click Play in the Player window, or when you connect to a new target device.

The information in the detailed view is arranged into the following columns:

Column	Description
Object	The GameObject that contains the Audio Source playing the audio.
Asset	The audio Asset that the corresponding GameObject Audio Source is playing.
Volume	The volume the Audio Source applies to the audio. This is a combination of its overall volume property, and the dynamic volume that the distance-dependent attenuation curve applies.
Audibility	The actual level at which the audio plays. This is the sum of the Audio Source’s volume and the other attenuations the mixer channels apply to it.
Plays	The number of times Unity has played the audio. This information is useful to debug logic errors where Unity might not use some audio files.
3D	Displays YES if the audio uses dynamic distance-dependent attenuation and directional panning.
Paused	Displays YES if the audio is paused in this frame.
Muted	Displays YES if the audio is muted in this frame.
Virtual	Displays YES if the audio is suspended because of the Max Real Voice Count, which you can set in the Audio Project Settings. The Max Real Voice Count sets the maximum amount of Audio Sources that Unity simultaneously plays at once. If this displays true, Unity has prioritized other audio that has higher audibility or priority in this frame.
OneShot	Displays YES if AudioSource.PlayOneShot() played the audio.
Looped	Displays YES if AudioSource.Play() played the audio.
Distance	The distance from the Audio Source to the AudioListener.
MinDist	The minimum distance defined on the AudioSource curve editor. This defines a spherical region around the audio where the volume stays at a constant level within it.
MaxDist	The maximum distance defined on the Audio Source curve editor. This defines a spherical region around the audio where the volume stays at a constant level outside of it.
Time	The current relative time in the audio’s playback. While the audio playback is paused, this time does not advance.
Duration	The length of the audio in seconds.

Profiling your application

CPU Usage Profiler module

"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。

公安部备案号:

31010902002961

法律条款隐私政策 Cookies