Edifier S880DB Service Manual [de]
Thesycon
®
Systemsoftware & Consulting GmbH
Evaluation / Prototyping
Production
Evaluation Driver
XMOS Stereo Driver
Thesycon Driver
Features
USB Audio Class 2.0 & 1.0, asynchronous operation
Technical
Audio channels
Multichannel in/out
Stereo in/out
Multichannel in/out
Sample rate
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 358.2kHz, 384kHz
Sample depth
16, 24, 32bit, floating 32bit1
16, 24, 32bit
16, 24, 32bit, floating 32bit1
DSD
Native DSD
DSD over PCM (DoP)
DSD over PCM (DoP)
Native DSD
DSD over PCM (DoP)
Clock domains
Multiple
Single
Multiple
Latency /
buffering
Adjustable
Down to 3ms round trip
Fixed, safe setting
Adjustable
Down to 3ms round trip
ASIO
ASIO 2.2, multiple clients
ASIO 2.2, one client
ASIO 2.2, multiple clients
WDM / DirectX
MME, DirectSound, WASAPI
MIDI
Yes
No
Yes
HID
Yes
DFU
Yes. Supplied with customizable DFU wizard application
OS Support
Windows 7, 8, 8.1, 10 (32 & 64bit)
Customization
PID / VID
XMOS VID
XMOS EVK PIDs
XMOS VID
XMOS assigned PID, EVK
PIDs
Customizable
Customer supplied VID & PID
Branding
Thesycon
XMOS
Customizable splash screen,
strings and icons
Control panel
Yes
Yes
(Read-only information)
Customizable
SDK with C++ API
Code signing
Thesycon VeriSign
XMOS VeriSign
Customer supplied certificate
Terms
Cost
Free
Free
License fee
Restrictions /
Licensing
XMOS designs only.
Locked to XMOS VID & PIDs.
Evaluation and prototyping.
Fully featured evaluation
version of Thesycon
production driver.
Beep tones every 5minutes
after 60minutes.
XMOS designs only.
XMOS VID & PIDs and XMOS
assigned customer PID.
Available after purchase of
at least 150 XMOS devices.
Maximum use of 10,000units.
Negotiable.
Various licenses available
including unlimited and
royalty free.
Support
Standard XMOS support
Standard XMOS support
Thesycon support contract
Deliverable
EXE driver installer & kit
EXE driver installer
Customization kit
Available from
xmos.com
xmos.com
Thesycon
USB Audio 2.0 Driver for Windows - Overview
The XMOS USB Audio firmware supports both USB Audio Class 1.0 and USB Audio Class 2.0. Operation
with a USB Audio Class 2.0 host is preferred because of its extended feature set and use of USB 2.0.
However, Windows only provides support for USB Audio Class 1.0. To use a USB Audio Class 2.0 device
under Windows requires a driver.
XMOS therefore provides a free Windows USB Audio driver for evaluation and prototyping, a free
stereo-only driver for production, and a path to a more feature-rich multichannel production driver from
Thesycon.
Windows USB Audio 2.0 driver comparison
1. Feature supported by the driver, but not by XMOS firmware.
XM-003139-PC | 2016-10-10 Page 1/1
USB Audio 2.0 Driver for Windows - Overview
Evaluation Driver
The Evaluation Driver is a fully featured evaluation version of the Thesycon ‘TUSBAudio’ USB Audio 2.0
Class Driver for Windows. The Evaluation Driver is therefore fully USB Audio Class 2.0 & 1.0 compliant,
and supports USB high-speed (480Mbit/s) operation.
The Evaluation Driver is available as a free download from xmos.com (www.xmos.com/published/usb-
audio-class-20-evaluation-driver-windows) for evaluation and prototyping purposes only and will work
with all XMOS Reference Designs and Development Kits:
Note that the Evaluation Driver provides all the features of the Thesycon Driver but will generate a short
beep tone every 5minutes after 60minutes of operation.
For a full description of the Evaluation Driver feature set see the Thesycon Driver section, below.
XMOS Stereo Driver
The XMOS Stereo Driver is based on the Thesycon ‘TUSBAudio’ USB Audio 2.0 Class Driver for Windows
and is available free-of-charge to qualified XMOS customers for prototyping and production runs of up
to 10,000units.
The XMOS USB Audio 2.0 Stereo Driver uses the XMOS USB VendorID (VID) and an XMOS assigned USB
ProductID (PID); and when compared to the Evaluation/Thesycon driver has a reduced feature set:
Stereo audio in/out only
No MIDI support
Single audio clock domain only
Only one ASIO or WDN client connection to the driver at any one time
To qualify for access to the XMOS Stereo Driver requires:
Purchase of at least 150 XMOS devices
Request the XMOS Stereo Driver, using the XMOS Stereo Driver Request Form. Download from
www.xmos.com/published/xmos-stereo-driver-request-form
Upon successful acceptance of an XMOS USB PID request, XMOS will assign the product a unique PID
and unique GUIDs and will create an instance of the XMOS Stereo Driver. When complete, the finished
driver will be made available on a secure section of the xmos.com website, and an automatic notification
email containing a download link will be issued.
The XMOS USB Stereo Driver is not customizable. The USB Vendor and Product strings will always
appear as “XMOS” and “USB Audio 2.0” respectively and the driver installer retains XMOS branding.
The XMOS Stereo Driver is delivered as an installer executable, which supports: first-time installation, uninstallation and update of the driver; all through a wizard-style user interface.
A USB DFU (Device Firmware Update) application is included in the XMOS Stereo Driver installer
executable and allows upgrading of the firmware in the XMOS device over a USB connection.
Files installed by the driver have a sequence number appended to them to distinguish them from an
install of the same driver with a different PID on the same machine. Multiple products using the XMOS
Stereo Driver can therefore co-exist on the same PC. Note that the XMOS Stereo Driver will work with
the specific customer product and all XMOS Reference Designs and Development Kits (subject to the
feature restrictions detailed above).
The XMOS Stereo Driver license agreement permits distribution the XMOS Stereo Driver to end customers
for their use with the specified USB audio product and is valid for production volumes up to 10,000units.
If production volumes of the XMOS VID and XMOS assigned PID exceed 10,000units, the XMOS Stereo
Driver license agreement requires that an alternative driver solution be sought; for example, the
production Thesycon Driver.
XM-003139-PC | 2016-10-10 Page 2/1
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