Audial Usb board mk2 User manual

USB board Mk2

INSTRUCTION MANUAL

Revision 0, December 2017

IMPORTANT!

1. This manual is a guide only.

2. Device is claimed to work as such, however the customers are responsible for their applications.

3. Do not expose this device to rain or moisture, excessive heat or mechanical force.

4. Use this device exclusively with specified voltages.

5. Unplug the device from the wall outlet during a lighting storm.

www.audialonline.com

This manual comprises introducing information on use and performance of this device. For more

information please refer to the Audial web site, or send your questions to [email protected].

THIS DEVICE

Audial USB board is a USB audio decoding stage,

which also generates clock signal for D/A conversion.

At one side it connects to PC via USB port and, by

operating as asynchronous (master) USB Audio Class

2.0 device, it is able to accept audio sampling rates up

to 192 kHz. Up to 384 kHz operation is available as

optional feature.

The board decodes USB signal to raw PCM that can be

sent to D/A chips. Also, it provides galvanic decoupling

between USB and PCM side, thus also separating PC

from audio clocks and other audio circuits.

Two low jitter clocks are included, one that works with

44.1/88.2/176.4 kHz, and the other that works with

48/96/192 kHz sampling frequencies. This way the unit

achieves clean clocking scheme, and all the audio

clock signals in the system are generated only by

frequency dividing, and not by using PLL synthesizers.

MARK 2

The Mk2 board version is shipped as a ready made

module, or as completed unit.

Modules are intended for use inside or close to the

D/A converters, and output signal is available on the

set of nine U.FL PCB connectors. These U.FL outputs

are 3.3 V level, with 50 Ohm build-out resistors, and

they can drive several gates, but are not meant to drive

terminated lines. Modules do not include BNC output

connectors, nor do they include associated line

drivers.

Module requires transformer with two secondary

windings: one 7-8 VAC (AC1) for USB front end, and

one 8-10 VAC (AC2) for clocking and output side. AC1

can be up to 10 VAC too, but transistor Q1 (BD139,

TO-126 package) should have some heatsink in that

case.

Transformer should be capable to supply 500mA, for

both AC1 and AC2. The current actually needed by

AC1 is 100 mA typically (120 mA max). The current

needed by AC2 is normally 20-30 mA, but if BNC

outputs are added to drive terminated lines, it will

increase to about 100 mA. Overall, a small 10 VA

transformer is enough to feed this module, and 20 VA

is plenty, under any circumstances.

Completed unit includes line output drivers, and PCM

signal, including the master clock, is available on the

set of BNC connectors, located along the right side of

the unit. BNC outputs are typically 5 V level, 75 Ohm

series terminated, and with 75 Ohm load they will

provide 2.5 V at receiving end, but on request they can

be set for 3.3 V output too.

Audial USB board Mk2

4Audial USB board Mk2

USB AUDIO CLASS 2.0

This USB device employs USB Audio Class 2.0

definitions.

Mac OS X and Linux are natively USB Audio Class 2.0

compliant for several years now, and this device hence

does not require special driver when used with Mac OS

X or Linux.

WINDOWS USB AUDIO CLASS 2.0

Since September 2017, Windows 10 also supports

USB Audio Class 2.0 definitions. This basically makes

this device plug and play with Windows 10, and once it

is connected to Win 10 machine, the small window will

pop up in the bottom right corner of the screen,

reporting about the initial connection routine. Once

this process is finished, the device can be found as

playback audio device, available in the system.

DEDICATED WINDOWS DRIVER

Audial provides dedicated Windows driver for this

device, which is still necessary with earlier Windows

versions. Also, this driver provides additional

functionality as firmware update, ASIO interface,

buffer length control, and can be generally preferred

soundwise.

Users can download this driver from Audial web site.

Driver version 1.26 can be installed to Windows XP,

Vista, 7, 8, 8.1 and 10. Later driver version 2.10

however improves on compatibility with later PC

systems, and can be installed to Windows 7, 8, 8.1 and

10. All driver versions are compatible with both 32 and

64-bit Windows.

To install the driver, please unzip provided file, and run

setup.exe. Installation window will pop up, and at one

stage you will be asked to connect the device. Also,

during this process, depending on your Windows

version and security settings, you might be asked a

couple of times to allow the installation, so please do

so. These windows will look like this.

Once the installation is complete, you can configure

your settings by using the control panel, available in

Windows Start Menu -> Audial.

Audial USB board Mk2

OUTPUT FORMATS

Depending on the firmware, this board may output

one of the following digital protocols.

A. Philips simultaneous data protocol

This protocol is intended for use exclusively with

TDA1541(A). The output has split channels, 16-bit

right justified data, in offset binary format, clocked on

the falling edge of BCK. Negative data outputs are also

provided, so the board can be used as a source for true

balanced TDA1541(A) DAC.

B. I2S/ SPDIF

I2S is as specified, so two data channels are time

multiplexed, and binary word starts one BCK cycle

after WS transition. Data is in two’s complement

format, and is clocked on the raising edge of BCK. In

addition, the board with I2S output also has an S/PDIF

output.

C. PCM1704 format

Similarly to firmware A, this option has split channels,

and right justified data. The word is however 24-bit

long, data is in two’s complement format, and it is

clocked on the raising edge of BCK.

Output formats are graphically shown on the figure 4

(page 9).

OUTPUT CONNECTIONS

The table below shows detailed list of the signals

available on the set of nine U.FL connectors (J202 -

J210). The same applies to the BNC output connectors

of the completed unit, and the only exception is that

there is only one BNC connector per BCK and LE / WS

line.

In I2S mode, 75 Ohm S/PDIF output is available at BNC

connector J201, on the back side.

Connector

Output format

Simultaneous data

I2S / SPDIF

PCM1704

DL (J202 / J301)

Left channel data

DLN (J203 / J302)

Left channel inverted data

DRN (J204 / J303)

Right channel inverted data

DR / DATA (J205 / J304)

Right channel data

Data

Right channel data

BCK (J206 / J305)

Bit clock

BCK (J207)

Bit clock

LE / WS (J208 / J306)

Latch enable

Word select (a.k.a. LRCK)

Latch enable (WCLK)

LE / WS (J209)

Latch enable

Word select (a.k.a. LRCK)

Latch enable (WCLK)

MCK (J210 / J307)

Master clock

6Audial USB board Mk2

MAXIMUM SAMPLING RATES

At its input, this device is generally 192 kHz

compatible, however maximum output sampling

frequency might be limited by the reclocker, and its

requirements regarding the master clocks frequencies.

Table below shows detailed specifications.

Please note that the TDA1541, both -A and non -A

versions, can normally work up to 192 kHz in

simultaneous data mode, however in I2S it is limited to

96 kHz in any case.

UP TO 384 KHZ COMPATIBILITY

Firmware version 3.5 has been released in September

2017, to add 352.8 kHz and 384 kHz compatibility to

the boards with TDA1541(A) simultaneous data

output and 22.5792 / 24.576 MHz master clocks.

Please note that the Windows audio is currently limited

to 192 kHz, however the operation at 352.8 kHz and

384 kHz is possible by means of ASIO or WASAPI

(exclusive mode) interface.

Also, while non -A version of TDA1541 chip will

normally work up to 384 kHz, a TDA1541A will need a

small tweak. Please contact us for detailed

information.

Master clock frequencies

Firmware

Maximum sampling rate

Simultaneous data

I2S

S/PDIF

PCM1704

11.2896 / 12.288 MHz

3v3

192 kHz

96 kHz

192 kHz

22.5792 / 24.576 MHz

3v3

192 kHz

22.5792 / 24.576 MHz

3v5

384 kHz

N/A

Audial USB board Mk2

THIS BOARD AND AYA II 2014 / DS

This board can be easily connected to AYA II DAC

projects released in 2014 and 2015 (DS).

Both USB board and AYA II 2014 / DS can operate in

both Philips simultaneous data and I2S mode. AYA II

2014 / DS can accept either simultaneous data

protocol or I2S at the input connectors J301-J304. At

the input connectors J305-J307 it can accept only I2S.

USB board output mode is defined by its firmware. AYA

II i.e. TDA1541A mode is set by TDA1541A pin 27, and

for simultaneous data mode it should be tied to -5

VDC (pin 26), whereas for I2S it should be tied to +5

VDC (pin 28). This can be done either by PCB DIP

switch or by wire jumper. Switch is recommended

though, so the mode can be easily changed later.

Preferred mode of operation is simultaneous data

mode, for better intrinsic jitter performance of

TDA1541(A).

Please however note also that the AYA II can not switch

automatically between two modes, so if you settle on

simultaneous data mode, you will have to change its

mode manually to I2S whenever the other input

(S/PDIF or external I2S) is used.

Before connecting this board to AYA II, the connection

between AYA II on-board USB stage and its input

switching relays must be cut. This can be done by

removing (or by pulling up one side of the) resistors

R118-R120. This way the U.FL connectors J301-J304

are ready to accept external source.

In addition, is also the good idea to turn AYA II on-

board USB stage completely off, by disconnecting its

secondary winding AC1.

In simultaneous data mode the connection between

two boards is achieved by four U.FL cables (Data L,

Data R, BCK, LE), while I2S requires three U.FL cables

(Data, BCK, WS).

By making these connections, the whole set-up is

ready for operation.

Two boards should be placed one beside the other,

into the same plane, and not one above the other.

AYA II 2014 / DS DEM CLOCKING

To determine right DEM clocking frequency, it is

important to know what sets its bottom and upper

limit. Firstly, a DEM clock frequency is divided by four

internally by TDA1541A, and this divided-by-four

frequency should never fall into the audio band,

because it can produce the glitches of its own. So,

practical bottom limit is 80 kHz. On the other side,

TDA1541A performance slightly decreases, as DEM

frequency increases. While this decrease is in fact not

huge, and occurs mostly at the bottom end of the

audio spectrum (0.5 dB at 100 Hz, for 400 kHz DEM

frequency), it is wise to keep the DEM frequency below

500 kHz.

The AYA II DS on-board DEM clocking circuit takes the

bit clock signal, and divides it by 16. This way, in

simultaneous data mode (32 bit frame) the DEM

frequency will be two times higher than audio

sampling frequency, while in I2S (64 bit frame) the

DEM frequency will be four times higher than audio

sampling frequency. In all these cases, and taking into

account the range of operation that applies to each

mode, the DEM frequency will always remain between

88.2 kHz and 384 kHz. Therefore, when AYA II DS is

used with this module, its DEM clocking circuit can be

left as is.

In the AYA II 2014 this synchronous DEM clocking

circuit is optional, but users can employ it the same

way it is used in the AYA II DS.

Of course, since this module offers also a master clock

output, this clock frequency, adequately scaled down,

can be also used as a basis for TDA1541A DEM circuit.

8Audial USB board Mk2

Fig 3: Recommended rear panel cut-out, rear view (all measures in mm)

LED INDICATORS

The board offers connections for three indicating LE

diodes. D10 indicates the board power supply (it is

connected to R5-R6/C4, fed by AC2), D101 indicates

the USB cable connection (it is connected to USB

Vbus), while D102 indicates the audio stream i.e.

playback (flag comes from decoding processor).

BOARD SIZE AND MOUNTING

The board size is 110 mm (width) x 120 mm (depth).

There are four mounting holes, each 4 mm in diameter,

located 5 mm from the board back, left and front

edge, and 25 mm from the right edge.

Center of USB connector is 27 mm from left edge of

the board. Center of S/PDIF output BNC connector

(applies to boards with S/PDIF output) is 67 mm from

the left edge of the board.

To determine heights of the holes at the back plate

required for these connectors, please consider not

only PCB stand-offs, but also PCB itself, which is 1.6

mm thick. The drawing below shows recommended

BNC and USB connectors panel cut-out (rear view),

taking into account 15 mm stand-offs at that.

Fig 4: Top side of the board.

The picture shows USB input connector (J101), S/PDIF output connector (J201),

U.FL output connectors (J202 - J210), BNC output connectors (J301 - J307)

transformer connections (AC1, AC2), LED indicators (D10, D101, D102),

and mounting holes

Audial USB board Mk2

WS (LRCK)

DATA

I2S

LSBMSB MSB

LEFT CHANNEL

BCK

DATA LEFT

DATA RIGHT

TDA1541(A) simultaneous data: split channels, 16 bit; data is offset binary

MSB

LE (WCLK)

BCK

DATA LEFT

DATA RIGHT

PCM1704: split channels, 24 bit, LSB (right) justiﬁed

MSB

BCK

LSB

RIGHT CHANNEL

B16

LSB

Fig 5: Output formats

10 Audial USB board Mk2

Fig 6: 24.576 MHz master clock, U.FL output, 12 pF load

Fig 7: 2.8224 MHz bit clock, U.FL output, 12 pF load

Audial USB board

Fig 8: 2.8224 MHz bit clock, U.FL output, spectral analysis, 200 kHz span

Fig 9: 1.4112 MHz bit clock, U.FL output, spectral analysis, 100 kHz span

12 Audial USB board Mk2

Audial USB board

Fig 10: 2.8224 MHz bit clock, BNC output, 12 pF load, no termination

Fig 11: 2.8224 MHz bit clock, BNC output, 75 Ohm ǁ 12 pF load

14 Audial USB board Mk2

Fig 12: 1.4112 MHz bit clock, BNC output, spectral analysis, 50 kHz span

BCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCKBCK

Table of contents

Other Audial Media Converter manuals