miniDSP USBSTREAMER User Manual

miniDSP USBSTREAMER User Manual

Multi-channel usb audio interface, box version, kit version
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USBS
TREAMER
M
-
USB
I
ULTI
CHANNEL
AUDIO
NTERFACE
TOSLINK/ADAT
BOX VERSION
TOSLINK/ADAT/I2S/TDM
KIT VERSION
User Manual
1
miniDSP Ltd, Hong Kong /
www.minidsp.com
/ Features and specifications subject to change without prior notice

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Summary of Contents for miniDSP USBSTREAMER

  • Page 1 USBS TREAMER ULTI CHANNEL AUDIO NTERFACE TOSLINK/ADAT BOX VERSION TOSLINK/ADAT/I2S/TDM KIT VERSION User Manual miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 2 Revision Description Date User manual – Initial version 20-06-2012 Mac OSx configuration 09-08-2012 Adding USBStreamer B information + Win8 setup 26-05-2014 Updated installation procedure, Mac firmware update 22 March 2016 More detailed I2S information 25 March 2016 TDM firmware details...
  • Page 3: Table Of Contents

    Download ..............................27 Loading firmware ............................. 28 Configuration in Audio MIDI Setup ......................30 Additional Information ............................. 33 Specifications ............................33 Obtaining support ............................ 33 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 4: Important Information

    ERMS miniDSP Ltd warrants this product to be free from defects in materials and workmanship for a period of one year from the invoice date. Our warranty does not cover failure of the product due to incorrect connection or installation, improper or undocumented use, unauthorized servicing, modification or alteration of the unit in any way, or any usage outside of that recommended in this manual.
  • Page 5 CE M TATEMENT The USBSTREAMER has passed the test performed according to European Standard EN 55022 Class B. OTE ON THIS ANUAL This User Manual is designed for reading in both print and on the computer. If printing the manual, please print double-sided.
  • Page 6: Product Overview

    Thank you for purchasing a miniDSP USBStreamer USB audio interface. The USBStreamer comes in two versions. The box version can be used in two modes by loading different firmware: • Eight channels of input/output via ADAT (optical). This is the default when the USBStreamer B box version is shipped from miniDSP.
  • Page 7: Connectivity

    KIT VERSION External 5V DC power can be connected to the USBStreamer via pin 12 of J2. This pin is connected with a “diode-or” connection to the power line from the USB port. Supplying 5V DC to this pin will therefore ensure that the USBStreamer remains powered on even when no USB device is connected.
  • Page 8: Logic-Level I/O (Kit Version)

    (While miniDSP always tries to help its customers, it is infeasible for us to debug your circuit and wiring for you.)
  • Page 9: Headers And Pinouts

    2.4.2 Headers and pinouts The USBStreamer circuit board has two 12-pin headers located between the optical ports. Logic-level data and clocks are on J1, while J2 carries auxiliary signaling and GPIO lines reserved for future enhancement. Table 1 lists the default pinouts. Note that these vary with the specific firmware loaded. See Section 3 for full details.
  • Page 10: I2S

    Clocks I2S has three clock lines. These clocks are always outputs. The connected circuitry must therefore be set to run in slave mode and accept its clocks from the USBStreamer. MCLK The master clock for both playback and recording. This pin is always an output. Connected circuitry can choose whether or not to use it.
  • Page 11 Timing Each I2S data line carries two audio channels. The USBStreamer uses up to four lines for input data and four lines for output data, depending on the firmware loaded. Input lines are always treated as 24-bit, while output lines can be 16- or 24-bit.
  • Page 12: Tdm

    Clocks TDM has three clock lines. These clocks are always outputs. The connected circuitry must therefore be set to run in slave mode and accept its clocks from the USBStreamer. MCLK The master clock for both playback and recording. This pin is an output only.
  • Page 13 Timing Each TDM data line carries eight audio channels. The USBStreamer uses one or two lines for input data and one or two lines for output data, depending on the firmware loaded. Input lines are always treated as 24-bit, while output lines can be 16- or 24-bit.
  • Page 14: Firmware Versions

    In Ch 1-2 Out Ch 3-4 In Ch 3-4 Out Ch 5-6 In Ch 5-6 Out Ch 7-8 In Ch 7-8 MCLK BCLK LRCLK miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 15: Stereo

    J1 as I2S and the optical output. By default, the USBStreamer uses its internal clock source. If a TOSLINK input is provided, UAC2 Control Panel (Windows) or Audio MIDI Setup (Mac) can select that input as the clock source. In that case, the I2S clocks will be synthesized from the received clock.
  • Page 16: I2S_Toslink

    J1 as I2S while output channels 9-10 are sent to the optical output. By default, the USBStreamer uses its internal clock source. If a TOSLINK input is provided, UAC2 Control Panel (Windows) or Audio MIDI Setup (Mac) can select that input as the clock source. In that case, the I2S clocks will be synthesized from the received clock.
  • Page 17: Adat_I2S

    By default, the USBStreamer uses its internal clock source. If an ADAT input is provided, UAC2 Control Panel (Windows) or Audio MIDI Setup (Mac) can select that input as the clock source. In that case, the I2S clocks will be synthesized from the received clock.
  • Page 18: Tdm

    In Ch 1-8 — Out Ch 9-16 — In Ch 9-16 — — — — — — — — MCLK MCLK BCLK BCLK FSYNC FSYNC miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 19: Sample Rate Summary

    Table 9. Summary of sample rates for each firmware version Sample Rate LowSampleRate Stereo I2S_TOSLINK ADAT_I2S TDM 8000 11025 12000 16000 22050 24000 32000 44100 48000 88200 96000 176400 192000 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 20: Installation And Configuration - Windows

    If you purchased your product directly from miniDSP, your software will be available from the User Downloads section of the miniDSP website when your order ships. You will need to be logged into the website with the account you created when purchasing to access the download.
  • Page 21: Loading Firmware

    4.3 L OADING FIRMWARE If the default firmware loaded into your USBStreamer as shipped is not suited for your application, you will need to load a different firmware version. • USBStreamer B (box) has ADAT firmware loaded when shipped. •...
  • Page 22 You will get a progress bar as upgrade proceeds: When it completes, you will see a message that the upgrade completed successfully: Click on Exit. That’s it! You’re done. You can now use your USBStreamer with the new firmware. miniDSP Ltd, Hong Kong / www.minidsp.com...
  • Page 23: Uac2 Control Panel

    To configure the USBStreamer, open the miniDSP UAC2 Control Panel (from Start Menu -> miniDSP Ltd). It has several panes, described below. 4.4.1 Status This tab shows the current sample rate of the USBStreamer. This setting cannot be changed in the Control panel, but simply reflects the current sample rate of the USBStreamer. 4.4.2 Format This tab is present in firmware versions that allow a choice of different formats (for example, 16- or 24-bit output).
  • Page 24: Clock Source

    4.4.3 Clock source This tab allows you to select the clock source: internally generated by the USBStreamer and selected by the computer, or generated from the TOSLINK or ADAT input. 4.4.4 Buffer settings The buffer settings are for those looking to optimize the buffering and latency settings of the USBStreamer. Note that changing these settings may result in unstable operation since such changes are dependent on the resources of the PC.
  • Page 25: Volume

    To mute a pair of channels, click the speaker icon above the label. o To control volume separately for each channel, click on the “Link” icon to turn it off. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 26: Info

    4.4.6 Info This pane shows information about the USBStreamer. 4.4.7 About miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
  • Page 27: Installation And Configuration - Mac Os X

    If you purchased your product directly from miniDSP, your software will be available from the User Downloads section of the miniDSP website when your order ships. You will need to be logged into the website with the account you created when purchasing to access the download.
  • Page 28: Loading Firmware

    5.2 L OADING FIRMWARE If the default firmware loaded into your USBStreamer as shipped is not suited for your application, you will need to load a different firmware version. • USBStreamer B (box) has ADAT firmware loaded when shipped. •...
  • Page 29 Once the firmware upgrade completes, you will see a message that the upgrade completed successfully: Quit the miniDSP USB DFU application. That’s it! You’re done. You can now use your USBStreamer with the new firmware. miniDSP Ltd, Hong Kong / www.minidsp.com...
  • Page 30: Configuration In Audio Midi Setup

    By default, the sample rate clock of the USBStreamer is internally derived. With firmware that supports ADAT or TOSLINK, it can also be derived from the optical input by using the Clock Source selector: miniDSP Ltd, Hong Kong / www.minidsp.com...
  • Page 31 3. Select the output sample rate. Typically, 44.1 kHz is the best choice. Some audio players will automatically change this setting according to the media being played. 4. To set the USBSTREAMER to be the default audio output device, right-click and select “Use this device for sound output”.
  • Page 32 The ADAT_I2S, I2S_TOSLINK, LowSampleRate and 16-channel TDM firmware are provided in two separate firmware files, each of which has a different USB ID. This enables two USBStreamer devices to be connected at the same time. For example, if more than eight ADAT channels are required, use two USBStreamers and load firmware with different IDs into each.
  • Page 33: Additional Information

    24 x 64 x 67.4 mm (USBStreamer B) 6.2 O BTAINING SUPPORT 1. Check the forums on miniDSP.com to see if this issue has already been raised and a solution or solutions provided. 2. Contact miniDSP via the support portal at minidsp.desk.com...

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Toslink/adatToslink/adat/i2s/tdm

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