Core Audio (Macintosh)
The Sixty-One uses a low-latency Core
Audio device driver to interface with
software applications other than Scratch
Live on Macintosh operating systems.
Core Audio allows different audio software
applications to simultaneously stream
audio to and from the Sixty-One.
To launch the Sixty-One driver Control
Panel, open the System Preferences
window. Locate the Sixty-One in the
“Other” section and click the Sixty-One
icon.
Driver Control Panel
The control Panel consists of three pages:
Preferences, Program Inputs 1-2, and
MIDI. To move between the pages, click
the
icon in the upper left-hand corner
of the control panel.
Preferences page controls:
•
USB-6 (11-12) Record source
: Two
radio buttons select the Main Mix or
Mic.
•
Analog Insert
: +4 dBu or -10 dBV. We
recommend the +4 dBu setting unless
you insert a low-voltage device, in which
you should use the -10 dBV setting.
•
Buffer Size
: The Buffer Size control
allows the USB driver buffer to be
increased or decreased. The Sixty-One
drivers are designed to run at latencies
as low 8 milliseconds. However,
computer performance and available
resources (number of applications
running) may adversely affect the
computer’s ability to stream audio
reliably. If pops and clicks are heard in
the USB audio, try increasing the buffer
size to eliminate them. With ASIO, total
round-trip latency is equal to Buffer Size
plus device latency. With Core Audio,
total round-trip latency is equal to Buffer
Size plus software application buffer
latency, plus device latency. Device
latency is 2.26 ms.
•
Update Device Firmware
: This panel
indicates the firmware version currently
installed in the Sixty-One. If the Sixty-
One firmware installed on your computer
is newer than the firmware in your
Sixty-One, the Update Device Firmware
panel is enabled. Pressing the Update
Firmware button updates the Sixty-One
firmware to the newer version.
PGM Inputs 1-2 Page Controls:
Each PGM panel controls these functions:
•
Analog Input Source
: Each input
may be set to Line level (CD) or Phono
level (PH) using a switch on the rear
of the mixer. PH/CD 1 and PH/CD 2
are associated with PGM 1. PH/CD 3
and PH/CD 4 are associated with PGM
2. The control panel shows the input
mode selected on the mixer for each of
the four inputs. The mode can only be
changed on the mixer.
•
Phono Sensitivity
: If Phono input
is selected on the mixer, the Phono
Sensitivity control appears. Clicking
the down-arrow displays a list of 16
sensitivity settings between 2.5 mV
and 10 mV in 0.5 mV steps. Set the
Phono Sensitivity to the same level
of your cartridge (see your cartridge
documentation for the correct value).
Another method is to match the level of
a CD on another input.
•
Filter Resonance
: Each channel of
the Sixty-One has a Filter knob that
provides both High- and Low-Cut
filtering. Filter resonance controls the
“peak” of the filter cutoff frequency. The
Low setting provides the smoothest
Filter without adding gain. The High
setting adds accent to frequencies near
the Filter cutoff point by adding about
12 dB of gain. Adding gain in a narrow
region around the cutoff frequency adds
a “zip” effect to audio as the Filter is
swept. The default resonance is 5 dB.
•
USB-3 (5-6) Record Source
: This
control allows users to select one of two
analog sources as the vinyl emulation or
USB record source for PGM 1. The two
radio buttons allow the user to select
PH/CD 1 or PH/CD 2. The post-PGM
1 fader signal is always available for
recording on USB 1 (1-2) record.
•
USB-4 (7-8) Record Source
: This
control allows selecting one of two
analog sources as the vinyl emulation
or the USB record source for PGM 2.
The two radio buttons allow the user to
select PH/CD 3 or PH/CD 4. The post
PGM 2 fader signal is always available
for recording on USB 2 (3-4) record.
MIDI Configuration Page:
This page has a panel to configure the
MIDI Out Port and another to configure
the MIDI In Port. MIDI In and MIDI Out
may be set to any channel between 1 and
16 or OFF. If MIDI In or Out are not being
used, set them to OFF. MIDI Out defaults
to Channel 1 and MIDI In defaults to OFF.
See “MIDI Mapping” on page 46.
Factory Defaults
To reset the Sixty-One Mixer’s Record/
Control Sources, Phono Sensitivity and
Filter Resonance to default settings:
1. Power off the Sixty-One.
2. Push both
FLExFx
buttons at the same
time.
4. While holding these buttons down,
power on the Sixty-One.
5. Immediately after fading up, the
FLExFx
lights flash one time, indicating a
successful reset.
NOTE: Settings are saved in the mixer.
Software is updated with the mixer’s
settings.
RANE SIXTY-ONE MIXER FOR SERATO SCRATCH LIVE • OPERATOR’S MANUAL 2.4.4
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