Tascam US-224 owner manual Per-channel Control command set

Page 39

Per-channel Control command set

The US-224 includes a set of 4 channel-strip controls and LED's. Each channel-strip includes the following controls:

a.linear fader for gain control

b.Mute/Solo switch and LED

c.Record-enable LED

d.Select switch and LED

Three modifier switches affect the channel strip indicators:

a.A momentary NULL switch and LED (to aid the user in matching the fader sliders with the "virtual" value maintained by the application software). When the application receives a NULL button-down message, it compares its internal fader values with the most recently- received physical fader positions for the currently- active bank of eight channels, and sends out messages which light the REC and SELECT LED's to indicate the direction the user needs to move each of the faders to agree with the application's virtual fader levels. When the user releases NULL, the application sends REC and SELECT LED update messages which will cause them to revert to their "native" function (indicating record and channel-select status).

b.A REC (record) button which acts as a "shift" key, enabling the track select switches to affect the record-enable status of the corresponding track in the application software.

c.A MUTE/SOLO mode button, which toggles the function of the mute buttons and indicators, making them activate a SOLO function on their associated track.

US-224 to Host Commands:

1.FADER_POSITION: BF 4x vv x = [0..3], vv = [0..3F]

2.MUTE_SWITCH:

a.Button-down: BF 0x 7F

b.Button-up: BF 0x 0 x=[0..3]

3.SELECT_SWITCH:

a.Button-down: BF 2x 7F

b.Button-up: BF 2x 00 x=[0..3]

4.NULL_SWITCH

a.Button-down: BF 28 7F

b.Button-up: BF 28 00

5.REC_EN_SWITCH:

a.Button-down: BF 29 7F

b.Button-up: BF 29 00

6.SOLO_SWITCH:

a.Button-down: BF 2A 7F

b.Button-up: BF 2A 00

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Contents US-224 For U.S.A Important Safety PrecautionsSafety Instructions Tascam Declaration of ConformityTable of Contents What’s in the package FeaturesIntroduction OverviewFront Panel Controls and IndicatorsPower LED Input Monitor Switch and LED Bank Switches and LEDsRear Panel Power switch Digital In and OutFront Panel Descriptions MIC Input a and B Power switchRear Panel Descriptions Phones jackSystem Requirements InstallationInstallation US224Win98Install110.exeTo install under Win98SE or ME To install using Windows New Hardware Wizard To install under Win2K or Windows XPTuning Your PC Setting Up OMS MacOS OnlyIllustration 3.03 Enabling DMA on your IDE drives Page Hooking up audio Hooking up Audio and Midi to the US-224Hooking up Midi Using the Input MonitoringMaster Fader Monitor vs. Master LevelMain US-224 Control PanelBuffer Size Adjustment Chromatic TunerAbout Buffer Sizing Illustration 5.03 The Chromatic Tuner Selecting the US-224 as your Audio Device Interfacing with your Audio SoftwareInput Enabling Setting the Sample Rate and Bit DepthTransport Controls and Locate Points ASIO2 Direct Monitoring Mute/SoloData Wheel Bank Controls and Fader NullPage Sample Recording Session in Cubasis Setting UpOverdubbing Recording Your TracksMixdown Other Applications and US-428 Emulation Mode MacOS Setting up Sound Manager Support for use withPage Audio Drivers TroubleshootingTechnical Support Tech Support Contacts’ve connected audio to the US-224, but can’t hear anything Troubleshooting FAQsBefore Contacting Us Don’t see the US-224 in Cubasis’ Audio Control PanelAppendix a Midi Implementation Chart Function Transmitted Recognized RemarksOYes Functional Groups Appendix B Control ProtocolPurpose IntroductionTransportrec Transport/Locate command setPer-channel Control command set Continuous data wheel Bank-Switching Command SetUpdateasnled F0 4EUNIT 12 0FSTATE F7 Appendix C US-224 Technical Specifications AD/DA Converter Connector 5P DINInput impedance 75 ohm Input Level 0.5Vp-p Output Impedance 75 ohm Output Level 0.5Vp-pUS-224
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US-224 specifications

The Tascam US-224 is a compact and versatile audio interface designed to meet the needs of musicians, podcasters, and home recording enthusiasts. Launched as part of Tascam's innovative range of products, the US-224 is recognized for its ease of use, portability, and impressive sound quality, making it an ideal choice for those looking to record in various environments.

One of the standout features of the US-224 is its capability to connect directly to a computer via USB, allowing users to harness the power of digital audio workstations (DAWs). This seamless connectivity ensures low-latency performance, enabling users to record and monitor audio in real-time without distracting delays. The interface is compatible with both Mac and Windows operating systems, which broadens its appeal to a wide user base.

The US-224 is equipped with two high-quality microphone preamps, providing sufficient headroom for capturing a wide range of audio sources. These preamps are known for their clear, detailed sound reproduction, making them suitable for various applications, from vocal recordings to instrument captures. Additionally, the interface features phantom power for condenser microphones, ensuring flexibility in microphone choice.

Users will appreciate the integrated mixer on the US-224, which allows for easy control of audio levels and monitoring. The interface includes insert points and line inputs, offering further options for routing signals, whether for instruments or external processing equipment. The built-in MIDI input and output ports also enhance the interface’s versatility, allowing users to connect MIDI controllers and other devices for comprehensive music production.

The compact design of the US-224 makes it highly portable, a significant advantage for mobile recording setups. This lightweight interface can easily fit into a laptop bag, enabling users to capture high-quality audio anywhere. Furthermore, the durable construction of the unit ensures it can withstand the rigors of travel.

In summary, the Tascam US-224 stands out as a reliable audio interface packed with essential features for recording enthusiasts. Its excellent sound quality, robust connectivity options, and user-friendly interface make it a valuable tool for anyone looking to create professional-level recordings effortlessly. Whether in a studio or on the go, the Tascam US-224 provides an unyielding performance that meets the demands of modern audio production.
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