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GMU:Tutorials/Performance Platform/Sound System Multi Speaker (view source)
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There are two | There are two interdependent sound systems. The [[GMU:Tutorials/Performance Platform/Sound System Stereo | stereo sound system]] and the surround/multi channel sound systems. Both are controlled by the same audio work station. | ||
In the Digital Bauhaus Lab (DBL) you would be able to work with a multi channel sound system, the work station uses an audio interface "Fireface | In the Digital Bauhaus Lab (DBL) you would be able to work with a multi channel sound system, the work station uses an audio interface "Fireface UCX" and Totalmix FX software for mixing and recording. | ||
The following tutorial will explain you how the hardware is setup and a quick introduction to the software and possible ways that you could expand the capacity of the multi channel sound-card and system. | The following tutorial will explain you how the hardware is setup and a quick introduction to the software and possible ways that you could expand the capacity of the multi channel sound-card and system. | ||
[[File: | [[File:DBL surround.jpg|400px|thumb|left|Surround system]] | ||
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"Surround sound is a technique for enriching the sound reproduction quality of an audio source with additional audio channels from speakers that surround the listener (surround channels), providing sound from a 360° radius in the horizontal plane (2D) as opposed to "screen channels" (center, [front] left, and [front] right) originating only from the listener's forward arc. | "Surround sound is a technique for enriching the sound reproduction quality of an audio source with additional audio channels from speakers that surround the listener (surround channels), providing sound from a 360° radius in the horizontal plane (2D) as opposed to "screen channels" (center, [front] left, and [front] right) originating only from the listener's forward arc. | ||
Surround sound is characterized by a listener location or sweet spot where the audio effects work best, and presents a fixed or forward perspective of the sound field to the listener at this location. The technique enhances the perception of sound | Surround sound is characterized by a listener location or sweet spot where the audio effects work best, and presents a fixed or forward perspective of the sound field to the listener at this location. The technique enhances the perception of sound spatialisation by exploiting sound localization; a listener's ability to identify the location or origin of a detected sound in direction and distance. Typically this is achieved by using multiple discrete audio channels routed to an array of loudspeakers." taken from wikipedia. | ||
If you want a deeper understanding of Multi channel sound systems, give it a look to the following link [http://www.lexicon.com/tl_files/catalog/LuxuryCars/Lexicon/Manuals/Legacy/DC-2/prod_140_634571188721562228_Lexicon_Theory-Design.pdf Multi-Channel Music & Cinema Systems Theory and Design] | If you want a deeper understanding of Multi channel sound systems, give it a look to the following link [http://www.lexicon.com/tl_files/catalog/LuxuryCars/Lexicon/Manuals/Legacy/DC-2/prod_140_634571188721562228_Lexicon_Theory-Design.pdf Multi-Channel Music & Cinema Systems Theory and Design] | ||
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<gallery> | <gallery> | ||
File:DBL surround.jpg|All the speakers in the DBL | File:DBL surround.jpg|All the speakers in the DBL | ||
File:dbl- | File:dbl-grafik 8Kanal.jpg |sound system connection sketch | ||
File: | File:DBL Sound.jpg|Sound system scheme | ||
File:speaker 1 3 4 5.png | speakers 1,3,4,5 | File:speaker 1 3 4 5.png | speakers 1,3,4,5 | ||
File:speaker 2 3 4 6.png | speakers 2,3,4,6 | File:speaker 2 3 4 6.png | speakers 2,3,4,6 | ||
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Turn on equipment: | Turn on equipment: | ||
*Audio work station (Enigma) | *Audio work station (Enigma) | ||
* | *Audio interface (RME Fireface UFX) | ||
* ADAT DA/AD Converter (Behringer ADA8200 Ultragain) | |||
*Power supply (488 back room, next to the video wall) | *Power supply (488 back room, next to the video wall) | ||
*Check if the USB cable connected (Work station to Fireface UFX) | *Check if the USB cable connected (Work station to Fireface UFX) | ||
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The | The computer is connected via USB connection to the sound card (Fireface UFX), and finally the power socket connection. (For photos see "gallery" bellow) | ||
The other connections are for digital and analog inputs and outputs such as MIDI, ADAT, SPDIF and WORDclock, this are different forms to connect other hardware and manipulate it inside the mixer, giving you the capacity to use up to 52 channels. | The other connections are for digital and analog inputs and outputs such as MIDI, ADAT, SPDIF and WORDclock, this are different forms to connect other hardware and manipulate it inside the mixer, giving you the capacity to use up to 52 channels. | ||
*more info about [ | *more info about [[wikipedia:ADAT|ADAT]] | ||
*more info about [ | *more info about [[wikipedia:PDIF|SPDIF]] | ||
*more info about [ | *more info about [[wikipedia:Word clock|WORDclock]] | ||
<br style="clear:both;"> | <br style="clear:both;"> | ||
=== Sound card | === Sound card front Interface === | ||
On the front side you have another set of input connections such as instruments line in and microphone in, and input volume knobs controllers and 48 volt phantom power supply activation. | On the front side you have another set of input connections such as instruments line in and microphone in, and input volume knobs controllers and 48 volt phantom power supply activation. | ||
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*Channels 9 and 10 are used for headphones (if you want to) - Phones are low impedance line outputs. They provide a sufficient and undis-torted volume when used with headphones. | *Channels 9 and 10 are used for headphones (if you want to) - Phones are low impedance line outputs. They provide a sufficient and undis-torted volume when used with headphones. | ||
For a better understanding of Phantom power click [ | For a better understanding of Phantom power click [[wikipedia:Phantom power|here]]. | ||
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*MIDI/O: indicates MIDI data sent to the MIDI output. | *MIDI/O: indicates MIDI data sent to the MIDI output. | ||
*The Digital State LEDs: (WC, SPDIF, ADAT, TCO) indicate a valid input signal separately for each digital input. | *The Digital State LEDs: (WC, SPDIF, ADAT, TCO) indicate a valid input signal separately for each digital input. | ||
*The red HOST LED lights up when the Fireface | *The red HOST LED lights up when the Fireface has been switched on, signaling the presence of operating voltage. At the same time it operates as error LED, in case the FireWire connection hasn't been initialized yet, or has been interrupted (error, cable not connected). | ||
[[File:sound card interface.png |thumb| left| 400px | sound card front LEDs]] | [[File:sound card interface.png |thumb| left| 400px | sound card front LEDs]] | ||
===Software=== | ===Software=== | ||
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== Going Beyond == | == Going Beyond == | ||
In a Surround system or multi channel system like this one is it possible to use Ambisonics for Max | In a Surround system or multi channel system like this one is it possible to use Ambisonics for Max/MSP or Pure data to transform the arrangement of speakers into a spatial sphere system in this case with panning modes could be posible, for that you will need and ambisonics extension for max msp that you could download going to this [https://www.zhdk.ch/index.php?id=icst_ambisonicsexternals site] all the documentation is inside the max objects, or for pure data go [http://puredata.info/Members/ricky/grambilib here] or take a look on this other library for Pd [http://www.mshparisnord.fr/hoalibrary/en/downloads/puredata/ HoaLibrary]. | ||
To know more about ambisonics sound system take a look on this [https://en.wikipedia.org/wiki/Ambisonics information] | To know more about ambisonics sound system take a look on this [https://en.wikipedia.org/wiki/Ambisonics information] | ||
== Useful Sites and Resources == | == Useful Sites and Resources == | ||
[https://www.youtube.com/watch?v=3CirlPcokfQ | [https://www.youtube.com/watch?v=3CirlPcokfQ RME Audio TotalMix FX Tutorials] | ||
[https://docs.cycling74.com/max7/tutorials/13_panningchapter03 MSP panning Tutorial 3: Multi-channel panning] | [https://docs.cycling74.com/max7/tutorials/13_panningchapter03 MSP panning Tutorial 3: Multi-channel panning] | ||