TS1 MIDI TAPE SYNC UNIT Multiple formats Even reads dodgy

TS1 MIDI TAPE SYNC UNIT Multiple formats Even reads dodgy
TS1 MIDI TAPE SYNC UNIT
The talented TS1 can successfully record a
sync stripe and synchronise a MIDI sequencer using any decent tape machine.
Moreover, you won’t need to swap around
the MIDI wiring between stripe record and
playback, as the TS1 has four MIDI ports
and automatic signal routing.
Multiple formats
A sync tone is a digitally coded signal that
will fit into an audio channel, similar to a
modem or fax warble. When a sync tone is
recorded on a tape track it is called a stripe.
The stripe and MIDI datastream format
(SMPTE/MTC or SPP/SRT - see below) is
easily selected by means of a straightforward front-panel rotary control.
Song Pointer/SRT format
Even if your sequencer is not MTC capable, you
can use the TS1 by way of its Song Position
Pointer/System Real Time format ("FSKplus").
When syncing to an SPP/SRT format stripe,
the TS1 provides two different restart timing
options. `Fast chase' gives you rapid `lockin' and is compatible all modern sequencers
and drum machines. The `slow chase' option
extends compatibilty to older devices which
require the five-second delay between the
Song Position Pointer and subsequent
Continue command.
When recording an SPP/SRT format stripe
the TS1 can generate a tone based on the
clock stream arriving at the MIDI SYNC IN
port. For non-musical applications, it can
also generate a tone based on an internal
120 beats per minute fixed tempo clock.
The TS1 FSKplus SPP/SRT format stripe is
similar to what other people call "Smart
FSK". It is not the same thing as ordinary
"FSK", but is functionally superior.
Level adjustments
Even reads dodgy stripes
The TAPE IN port has special signal
conditioning, so it can recover the data from
dodgy stripes that would defeat lesser units.
The TS1 is generally immune to tape
dropouts and flutter (thanks to high jitter
tolerance). Furthermore, the TS1 features a
very fast `lock-in' capability when a valid
received sync tone is recognised.
The TS1 TAPE IN port is so good that it will
work through noise reduction - even dbx!
SMPTE and MIDI Time Code
The TS1 can generate and recognise all four
SMPTE frame-rate formats (24 frames per
second, 25 fps, 30 fps and 30 fps drop
frame). The TS1 will convert SMPTE to
MIDI Time Code (MTC). TS1 is not able to
converts a MIDI Time Code datastream into
a SMPTE signal - you are very unlikely to
want to do this anyway.
The start time of the SMPTE sync tone can
be left at zero or manually set (using a small
pushbutton on the right-hand side panel) to
any number of hours and minutes. By using
special MIDI commands any start time can
be selected and the SMPTE User Bits can
be set if required.
Phil Rees Music Tech
Unit 1A, Garcia Trading Estate
Canterbury Road
WORTHING
West Sussex
BN13 1AL
ENGLAND
An LED is provided to tell you when a valid
sync signal is being received or transmitted
by the TS1. Screwdriver-operated level
adjusment presets are provided for both the
TAPE IN and TAPE OUT ports, so you can
adjust for optimum signal levels without
having to use a mixer channel. The adjustment spans from -20dB to +6dB, so both 10dB and +4dB standards are within range.
Flexible MIDI routing
The TS1 merges MIDI data received at its MIDI
AUX IN port with the timing datastream it
generates. This lets you overlay new tracks on
your sequencer in sync with your tape machine.
The diagram here shows a basic example of
a TS1-based installation using a reel-to-reel
multitrack and hardware sequencer.
MIDI tape sync applications
Tape Out
MIDI
Out
Tape In
In an installation like the
one shown
here, BYPASS
mode would let
the keyboard
talk to the
sound module
when the
sequencer was
not running;
the TS1 is not
active in this
mode.
MIDI
In
TS1
MIDI
In
MIDI Out
In PLAY
mode, the
keyboard data
is merged with
the sync data (derived from the tape input)
and passed to the MIDI In of the sequencer,
the output of the sequencer is passed to the
sound module. In STANDBY mode the
keyboard talks to the sequencer, the
sequencer talks to the module, while the
TS1 processor monitors the output of the
sequencer; STANDBY mode is used while
recording an FSKplus stripe in time with a
workpiece sequence. RECORD mode is
used when writing a SMPTE stripe to tape,
or when writing a fixed temp 120bpm
FSKplus stripe; RECORD mode simulates
the PLAY mode, but the source of the SYNC
data is now the internal clock of the TS1.
The MIDI routing through the TS1 is different
for each of its four operating modes. The MIDI
routing scheme is summarised in the table below.
BYPASS
MIDI
AUX
IN
MIDI
AUX
IN
PLAY
stripe
MIDI
SYNC
IN
MIDI AUX IN
merged with
SYNC STREAM
MIDI
AUX
IN
RECORD
stripe
MIDI
SYNC
IN
MIDI
SYNC
IN
MIDI AUX IN
merged with
SYNC STREAM
TS1
MIDI flow
by mode
MIDI
THRU
MIDI
OUT
+44 (0)1903 691160
Useful features
When syncing to a SMPTE or FSKplus stripe
you are free to shuttle your tape backward
or forward as you wish. The synchronisation
should pick up wherever you start to play.
You can also use the TS1 to copy any
compatible stripe between tape tracks.
The TS1 is remarkably compact (109mm x
109mm x 41mm), especially bearing in mind
that it includes an built-in mains power
supply, obviating the need for an external
adaptor. The integral mains lead comes
fitted with a plug.
Email: info@philrees.co.uk
Web site:
http://www.philrees.co.uk
All our products carry a
five-year parts and labour
guarantee.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising