The Alto is a 2-Channel spectrum analyzer, a Class 1 Sound Level Meter (SLM) and a 1-Channel DataLogger. Make up of an external acquisition USB 2.0 unit and PC software, the Alto can answer to most needs of all professionals in acoustics and vibration. Allowing various input types (ICP, Electrets or preamplified sensors), the Alto also includes many advanced functions (autostore, automatic sound recording, white noise generators, RT60, wave file editor, etc.).

Test the free download software for evaluation.

Spectral Analysis

Typical Time Recording

Typical Waterfalls

HARDWARE TECHNICAL DATA

• Sampling rate up to 43 kHz per channel for 2 channels
• SNR: 85 dB (input) and 88 dB (output)
• Dynamic range: 110 dB
• 4 input types: Direct DC, Direct AC, ICP and Electret
• Input dynamic range (+/-25 mV to +/-5 V)
• 2 independant programmable analog outputs
• Output dynamic range (+/-2V)
• Anti-aliasing filter on outputs and inputs
• BNC connector with led status for each input and output
• Alimentation: 100-240 V,50-60 Hz (24 Vdc battery option)
• Dimensions (WxHxD): 77 x 217 x 274 mm (3 x 8 1/2 x 10 3/4 inches)
• Weight: 1.8 kg (4 lb)

SOFTWARE TECHNICAL DATA

• Real time broadband frequency analysis (narrow band, 1/3 oct and octave)
• Standard Sound Level Meter function L_Aeq, L_AF or L_AS complying IEC SLM standard
• Frequency weightings A,C,Z and time weighting F,S,I.
• Statistical analysis module for L%
• Auto logging for all parameters, (data L_AF and L_AS spectra) from 1/8 sec to many days (depending on the PC memory)
• Automatic .wav file recording on trigger level (allowing to hear noise even).
• Real time data logging in standard .wav file.
• Complete post processing software of the .wav file for FTT, LA_eq, statistic analysis, erase function etc.

Download the User Manual : Tenor User Manual (pdf)



-CLASS 1 SOUND LEVEL METER (SLM)
-2-CHANNEL ANALYZER MODULE
-1-CHANNEL DATALOGGER MODULE



CLASS 1 SOUND LEVEL METER (SLM)

Class 1 Sound Level Meter (SLM) IEC-61672 compliant (Class 1) Standard SPL, LEQ and Peak measurements Fast/Slow and linear average A, C and Z frequency weighting Historic of global level results and statistics analysis Sxx and 1/3 octave spectrum Wave recording and autostore features for long period analysis (with a complete post treatment interface)

2-CHANNEL ANALYZER MODULE

2-Channel Analyzer Module Sxx, Sxy, FRF and Coherence Octave, 1/3 octave and 1/12 octave Linear, Exponential and Accept/Reject averaging types Dedicated interface for input sensor calibration Two independent white noise generators Trigger operation with a dedicated impact measurement set-up Export function of all results/graphs in text format (Excel compatible)

1-CHANNEL DATALOGGER MODULE

1-Channel Datalogger Module Real time acquisition and recording Global level historic module Average FFT, octave, 1/3 octave 1/12 octave module RT60 module with a white noise source Waterfall module Statistic module (LEQ and L1%-L99%) Signal export in standard .wav and other formats for playback and post-analysis Signal edition functions for a partial analysis of the entire recording

Products	Specifications	Price (CAD)
Click to enlarge	Alto Spectrum 2-ChAnalyzer Real time broadband frequency analysis (narrow band, 1/3 oct and octave) Standard Sound Level Meter function LAeq, LAF or LAS complying IEC SLM standard Statistical analysis module L% Automatic .wav file recording function on trigger level allowing to track and hear even. Real time data logging in standard .wav file.	$3,200
	Alto Sound Card Version All the Alto software function* can work with your PC sound card. Try the free download ! *Except the SLM mode	$490
	Case for the Alto 2-ChAnalyzer	$200