LINDOS MINISONIC AUDIO ANALYSERS

12 items

LINDOS MM3 Microphone, calibrated, for MS1, MS10, MS20

LINDOS LEAD3 CABLE SET Unison to 3.5mm jack, 4m

LINDOS CC3 CARRYING CASE Hard, for Minisonic audio analyser

LINDOS CC4 CARRYING CASE Soft, for Minisonic audio analyser, with shoulder strap

MiniSonic analysers are hand-held, two-channel analogue audio test sets, which as well as performing subjective measurements, can be used for precision line-up. Automated measurements can be made through the use of sequences making it possible to perform frequency 'sweeps', noise, distortion and phase measurements and headroom tests with the press of two buttons. Calibrated microphones are available so that speakers, other microphones and acoustic spaces may be analysed in the same way. The MiniSonic enables an audio path to be evaluated in terms of frequency response, noise, distortion, crosstalk and phase in a matter of seconds and produces a full graphical presentation of the results on an integral display or on a PC running Lindos software.

Minisonic can act as a stereo PPM, a two-way balanced-unbalanced converter, a stereo microphone preamplifier, a headphone amplifier and a level converter. Sequences of tests can be run at any level and any necessary level normalisation is made automatically. Graphs of frequency response, noise-time, phase-frequency, distortion-level and level-level can all be displayed by the unit and by a computer using the included software, for saving, printing, tolerance testing and more.

There are three models available. The MS20 has a 128x64 pixel OLED screen making it most suitable for stand-alone use. The MS10 provides the same measurement functions as the MS20, but displays information on a 32 LED bar graph. The MS10 is therefore better suited for bench applications where a desktop or laptop computer running Lin4Win is available. The MS1 is an MS10 without sequence testing.

Common Features - All MiniSonic Models

MiniSonic MS20

MINISONIC MS20

The main feature of the front panel is the 128x64 pixel OLED display, which at switch-on instantly displays the incoming level on both channels (to 0.01dB) the frequency on the left channel and the phase difference between the two. Opening the menu gives a list of pre-defined Lindos sequences. Once the sequence has been selected and completed, in 20 seconds typically, the results are displayed and the user can scroll through the different results screens. In sequence mode, user defined sequences can be assigned to two buttons, which in other modes act as frequency and level presets. The MS20 has non-volatile flash memory, used for storing user-sequences, configurations options and up to three complete sets of results, for transferring to a PC at a later point.

Measurement Modes

Level	Two-channel simultaneous level measurement, -50dBu to +19dBu in 10dB ranges (autoranging/manual). Accuracy +/-0.05dB -20dBu to +19dBu. Quasi-peak reading as standard with fast option. Frequency readout to over 50kHz with high precision (+/-1Hz resolution). Phase: +/-180 degrees, 20Hz-20kHz, +/-2 degrees resolution and accuracy (up to 40kHz with reduced accuracy).
PPM mode	Two-channel simultaneous display with PPM dynamics to IEC268 type II (BBC) standard. This mode also allows for -60 to +30dB precision variable gain on the loop-through output, with low noise, -85dB, weighted, and distortion, -90dBu, for studio use.
Noise measurement	ITU-R 468 weighting and quasi-peak dynamics. Residual input noise -88dBu weighted.
Distortion residue	Normalises and then nulls the fundamental and measures the residue on a 1kHz tone weighted according to IEC268 (ITU-R 468 curve and quasi-peak detector). Fully autoranging display relative to normalised level. Typical null depth -76dBu.
Crosstalk	Measures weighted crosstalk, automatically muting the channel selected, while driving the other at the selected frequency and level.
Sequence	Receives over 30 Lindos test segments. Displays the results of all sequence segments on the OLED screen with up-down cursor on all graphs. Graph normalisation for frequency response graphs. Stores four complete sets of results for later transferring to a PC.
Sequences	19 pre-defined sequences and over 30 selectable test segments for user assembly including sweeps 20Hz-20kHz and 40Hz-40kHz, noise, crosstalk, distortion residue, noise time plot, headroom plot and phase plot.
Line-up	Special segments for repetitive GLITS and channel ident tests. Also PPM and ITU-R 468 inverse-weighted tone-burst tests.
Presets	4 level and 4 frequency presets (user programmable).

Included accessories: Manual, 'Unison' to XLR leads and 'Unison' to RCA (phono) input and output adapter leads (1m), RS232 serial lead, RS232 to USB converter lead, lithium-ion battery. Lin4Win software on CD, AC in-line power adapter with power cord set; 100-240V AC 50/60HzAC.
Optional accessories: Unison to 3.5mm jack input and output adapter leads, MM3 calibrated microphone, hard carry case, soft carry case. Test CD2 contains forty tracks of Minisonic sequences and tones for testing CD players and use as a test source.

MiniSonic MS10Discontinued

MINISONIC MS10

Both channels are displayed simultaneously on the same LED bar graph display; a single LED illuminates to show the level of the first channel. The level on the second channel is represented by an LED with lower level of illumination, the 'shadow bar'. The same technique is used for cursor and other functions. Since the resolution of the main bar graph is one dB per LED, a 'vernier' mode uses the shadow bar to indicate 0.05dB steps for precision line up when used without a PC. A MS10 can be upgraded to an MS20 at a later date by fitting a new front panel.

Measurement Modes

Level	Two-channel simultaneous, bar graph -20dBu to +9dBu, (-30dBu to+19dBu using ranges), in 1dB steps plus 'over' and 'under'. Extended range with Lin4Win; -50dBu to +19dBu with 0.01dB resolution. Accuracy +/-0.05dB, -20dBu to +19dBu. Quasi-peak reading as standard with fast option. Vernier mode displays one channel (selectable) plus a vernier on the shadow bar in 0.05dB steps for precision level line-up when used as a stand-alone unit without a PC.
PPM mode	Two-channel simultaneous display with PPM dynamics to IEC268 type II (BBC) standard. This mode also allows for -60 to +30dB precision variable gain on the loop-through output, which has very low noise, (-85dB, ITU-R 468, quasi-peak weighted) and distortion (90dB).
Frequency display	25Hz to 25kHz 1/3rd octave shadow bar display with simultaneous level display of selected L or R channel.
Noise measurement	IEC268 (ITU-468) weighting and quasi-peak dynamics, reads 40dB to -70dB absolute or normalised. 0dB to -90dB with Lin4Win. Residual input noise: 90dBu weighted.
Distortion residue	Normalises and then nulls the fundamental and measures the residue on a 1kHz tone weighted according to IEC268 (ITU-468 curve and quasi-peak detector). Display is on a fixed scale -30dB to -60dB relative to normalised level. 0dB to -80dB with Lin4Win, typical null depth -75dB.
Crosstalk	Measures weighted crosstalk, automatically muting the channel selected, while driving the other at the selected frequency and level. Level measurement same as noise. Any frequency selectable.
Sequence mode	Displays the result of a frequency sweep using the shadow bar as up-down cursor with level readings on the main bar. Stores one set of results including 64-point two-channel frequency response. Full results from 16 possible test segments using Lin4Win.
Phase display	+/-180 degrees, 20Hz-20kHz, +/-2 degrees accuracy. Up to 40kHz with reduced accuracy.
Sequences	12 Sequences instantly available from the keys including sweeps 20Hz-20kHz and 40Hz-40kHz, noise, crosstalk, distortion residue, at six levels to +18dB, noise / time plot, headroom plot.
Line-up	Special segments include repetitive GLITS and channel ident, PPM inverse-weighted tone-burst tests.