Firelight Technologies FMOD Studio API

SRS Surround sound

How to enable SRS 5.1 Surround Sound encoding in FMOD

FMOD Studio uses SRS downmixing automatically, if the software mixer is 5.1 (FMOD_SPEAKERMODE_5POINT1), and the user's output speaker mode is stereo.
If the speaker mode is not 5.1 in the mixer, the mixer will match its speaker mode to that of the output, so SRS downmixing will never be used. In this case, for 3d sound (Vector based amplitude panning) VBAP will be used between 2 speakers only, and no rear speaker support will be activated from a Prologic/SRS decoder.

License for SRS 5.1 Surround Sound Encoder to Customers

1. About SRS 5.1 Surround Sound Encoder

The SRS 5.1 Surround Sound Encoder for FMOD features SRS’ advanced matrix surround sound processing engine. The SRS surround engine is a highly versatile multichannel audio encode system capable of supporting a wide range of surround sound creation and playback applications. With SRS 5.1 Surround Sound, surround sound is made available without sacrificing the 2-channel reach and experience.

2. Overview of SRS 5.1 Surround Sound

SRS 5.1 Surround Sound Encoder provides the capability to encode up to 6.1 channels of audio for transmission or storage over two output channels or standard two-channel carriers. SRS 5.1 Surround Sound Encoder can be listened to in stereo or decoded TVs, PCs, receivers, mobile phones and other CE devices with SRS technologies. SRS 5.1 Surround Sound is also backward compatible with all matrix decoders, such as Dolby Pro Logic® and Dolby Pro Logic Il®, with playback performance subject to the limitations of the specific decoder.

For more information on producing content in SRS 5.1 Surround Sound, please visit the SRS website at:
http://surround.srslabs.com/

For technical questions on producing content in SRS 5.1 Surround Sound, please e-mail to SRS at [email protected]

3. Rights to Use of the SRS 5.1 Surround Sound Encoder and Logo

Please note that, to use the SRS 5.1 Surround Sound Encoder included by FMOD, you are required to register with SRS at http://surround.srslabs.com/. To register with SRS, you will be required to provide your company name, contact information and title(s) of games developed using the SRS 5.1 Surround Sound Encoder if available. Your information will enable SRS to better support your technical requirements as needed and if applicable, refer to your game title(s) in SRS’ marketing materials.

In the same registration web page, you will find a trademark license agreement for your right to use the SRS 5.1 Surround Sound Logo. You must accept the trademark license agreement prior to using the SRS 5.1 Surround Sound Logo