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A filmic sound construction kit for teasers, trailers & promos

logogrande U.S.O. (pronounced /ˌjuː.esˈəʊ/   /-ˈoʊ/) is an independent sound effects libraries publisher. It offers royalty-free original sound effects for film, games and music creations with unlimited rights upon every purchase. Unidentified Sound Object was founded in 2011 by sound designer and re-recording mixer Matteo Milani (aka graphicalSound). He explores aesthetic opportunities both in the studio and in the field, inventing exclusive, designed raw elements, and to inspire the creativity of his fellow sound sculptors. The packages contain a wide variety of bizarre and unconventional sources: transfigured field recordings and everyday objects or materials generated through analog and/or digital synthesis. All of the audio files have been loudness-normalized and embedded with metadata for detailed and accurate searches in your software asset management. U.S.O. Libraries are sold exclusively through A Sound Effect, the world's largest catalog of independent sound effects.


Warped Choir

Warped Choir

///A filmic sound construction kit for teasers, trailers & promos///

Warped Choir provides a wide range of meticulously crafted stereo and 5.1 surround sound elements ready to be pumped in your trailer, video game or other audiovisual projects.

Warped Choir contains more than 200 massive dynamic impacts, transitions, soundscapes, epic vocal rises and whooshes, all designed from scratch using a choir concert recording as the unique waveform source in the Symbolic Sound Kyma workstation.



Imagined Spaces – REmatrix Expansion library


3Dimensional Printing

The Complete U.S.O. Bundle

Transmission Apparatus

Unseen Noises

Hologram Room – vol.1

Kyma Ambiences – vol. 1



U.S.O. Tilt EQ now available in Kyma

Now you can boost and cut in Kyma with a […]

2017 / 04 / 13
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Warped Choir - a filmic sound construction kit

Featured: Warped Choir review

Check out The Audio Spotlight’s review of ‘Warped Choir’ by […]

2017 / 04 / 03
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Warped Choir - a filmic sound construction kit

OUT NOW: Warped Choir

‘Warped Choir‘ is the latest state-of-the-art filmic sound construction kit […]

2017 / 03 / 07
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Recording Magazine

Review: Imagined Spaces

Overloud REmatrix convolution reverb and Imagined Spaces IR Pack have […]

2017 / 02 / 10
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“Lis10er” new album out now

Lis10er (LisTENer) is the name of the first volume of […]

2017 / 01 / 07
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Over the last 20 years, my creative background in different disciplines of sound - from advertising for television and radio to cinema and mobile applications - has led me to an openness to a variety of ideas and sound styles.

I collaborated successfully with Italian and European directors, working on hundreds of TV and radio spots, developing a deep sense of storytelling.

I worked as a sound designer and re-recording mixer on several documentaries and feature films, such as “Rosso Fango” - a short war movie which won the “David di Donatello” prize in 2003 and “Yuri Esposito”, screened at the 70th Venice International Film Festival.

I wrote for renowned italian audio magazines and built an international sound community in the blog “Unidentified Sound Object”.

In addition to producing and delivering innovative sound effects libraries, I offer music consultancy for audiovisuals and compose experimental music and develop surround-sound for multimedia installations and live events.


licenseYour purchase of any sound library grants you a lifetime non-transferable worldwide license for synchronization rights only. You are allowed to create a single working copy of all sounds contained within the product to store as a backup. The sounds are to be used only for the authorized purposes as defined in the End-User License Agreement. Every purchase of our product includes permission for you to access the sounds from up to 1 workstations installed at 1 address location (on-site, the primary location or physical address of the Licensee, at which the hard disk or other storage medium is housed). There is no fee. If you have 2+ users or require networked access to our sound effects libraries, you will need to obtain a special multi-user license not covered in the standard single user EULA. Multi-User Licensing is available upon request.


If you have any questions about our products or need further information, please feel free to write us

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