Greetings!
The
holiday season may be upon us, but we're still working
hard to bring you new products to enhance your testing
capabilities. In this issue we announce the release of
SoundCheck Version 8.1 and a new sequence for testing
portable music players to the EN 50322-1 standard. Also
in this newsletter is an end of year special deal on a
SoundCheck-Soundmap package, and news of upcoming
events.
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 SoundCheck Version 8.1 is
now released. It is available free of charge to all
registered users of SoundCheck 8.0. Contact your sales
rep for details. New features
include: Mono channel in/out - a
hardware channel can now be configured as mono in
addition to left or right. This means that when testing
mono devices such as Bluetooth headsets and USB
microphones, it is possible to set the level to maximum
output saturation. Calibration
History - Full calibration history for each
device is stored in the calibrated device .dat file.
Every time the user recalibrates and saves the
calibration step, a new entry is created in the
calibration history. This helps the user to view past
calibration data for the device and helps identify
trends in the device's calibration (e.g. changing
sensitivity). Smaller installation
file - SoundCheck is now a single
executable file which makes it faster and reduces its
size on disk. Process priority -
SoundCheck now allows you to give CPU priority to
Soundcheck over other applications. This ensures that
your production line is not slowed by Windows background
operations. Memory List Enhancements
- in the memory list, a 'delete all tabs' function is
now available, which avoids having to delete the
contents of each tab separately. The user can also
select more than one file when opening data files, and
use the curve name as the default file name when saving
it to
disk. |
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See us at at ALMA in Las
Vegas
 Listen will
be exhibiting at the ALMA Winter Symposium in Las Vegas,
Jan 6-7, immediately before the CES show. If you are
going to be in town then, stop by for a demonstration of
new release of SoundCheck, version 8.1. Listen
President, Steve Temme, will also be participating in
the panel discussion 'What loudspeaker measurements are
relevant to perception?', moderated by Floyd Toole. The
2-day ALMA event contains a full program of technical
papers, round tables, panel discussions, tutorials and
standards meetings as well as the exhibition. Admission
is just $160 for members and $260 for non-members.
Non-members who have never been to an ALMA show before
can get a free exhibit hall only pass, courtesy of
Listen (no access to papers and other events) by
visiting the ALMA online registration web site and
entering 54783847 in the discount code field.
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Measuring Max SPL to EN
50322-1
Listen now
offers a test sequence for measuring the maximum
sound pressure for portable music players and the
earphones/headphones they are bundled with to the
British standard EN50322-1. The test involves
loading a weighted pink noise stimulus file (as
specified by IEC 268) onto the portable device and
playing it through the earphones at the player's maximum
volume. The earphones are positioned onto a head
and torso simulator (HATS). The signal from each
ear is recorded, and a 1/3rd octave curve is
analyzed. An A-weighting is applied to the curves,
as well as a free field correction for the HATS.
The values between 20 Hz and 20 kHz are summed, and the
equivalent SPL in dBA must be below
100.
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Buy Now and Save
$1000!
For
a limited time period only, we are offering a $1000
discount when you purchase SoundCheck® and SoundMapTM
(Listen's Time-Frequency Analysis software) together.
SoundMap fully integrates with SoundCheck, but can also
be used with measurement systems from any manufacturer
as it can read data from any WAV file, ASCII text file
or even a MLSSA TIM file. SoundMap is a stand-alone
program which enables detailed analysis of signals
simultaneously in both the time and frequency domain. It
is ideal for impulse response analysis and detection of
loose particles and Rub & Buzz in loudspeakers. It
is also valuable for identification of transient effects
such as drop out in digital devices including VOIP and
Bluetooth headsets. This offer is valid through Dec
31, 2008 only. Call your salesperson for details.
More about
SoundMap | |
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New
Brochure
Our new SoundCheck brochure is available. Download your
copy using the link below, or email us to request a hard copy.
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Q&A
Customer Support Engineer Amandio Neves answers your
SoundCheck Questions.
Q: I want to use a Lynx Two card with SoundCheck to
output a digital signal. Yet when I select "Digital" in the
hardware step in SoundCheck, I don't see any signals coming
out of the Digital Out of the Lynx. What's
wrong?
A: Setting the Lynx Two card to Digital is
not enough. In your hardware step you have to choose "Lynx Two
Play 4" in the output section under "Device Name". This is the
digital channel for the Lynx Two card. If you wanted to use
the Digital In of the Lynx Two, you would do the same thing
except you would choose "Lynx Two Record 4" under the input
section of your hardware step.
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Quick Tip
To change the
dialog font size in SoundCheck 8.0 users should edit the
SoundCheck 8.0.ini file that is located in the .SoundCheck
8.0\ directory. Simply adding the text dialogFont =
"Arial" 10 under the [SoundCheck 8.0] line will change the
dialog font to 10 pt. Arial.
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