nti digilyzer dl1

The NTI Digilyzer DL1 is a powerful digital audio analyzer. Testing, monitoring and troubleshooting digital audio interfaces are straightforward using this compact tool. The digital audio formats AES3, S/PDIF, TOSLINK and ADAT with sampling frequencies up to 96 kHz are supported.

The Digilyzer analyzes and debugs different parameters within digital audio signals at the same time:

  • Interface carrier parameters like level & sample frequency
  • Channel Status parameters like professional/consumer mode
  • Audio related parameters like audible content and level

The built-in integrity check alerts if protocol inconsistencies, which could cause serious troubles, are detected.  Digital audio becomes transparent and easy to debug with the integrated speaker, event logging and the audio lens. The Digilyzer shows all these important parameters at one glance.

  • Channel Status - The complete channel status information is displayed in an easy-to-understand plain text format, according to the latest standards. The carrier frequency and level are available on nearly every screen.
  • Bit Statistics - Measuring the audio resolution, finding stuck-bit failures and monitoring the activity of the user data bit are some important applications of the bit statistics function. Basic channel status information is visible on the bottom line.
  • Event Logger - Intermittent faults are usually hard to find. The event logger tracks every change of the input signal (carrier, channel status or audio related) and allows long term checking and highlighting of possible problems.
  • Integrity Check - When receiving incorrect Channel Status information the behaviour of a device could be unpredictable. The Integrity Check compares measured parameters with the indicated status and warns if any discrepancies are found.
  • Audio Monitoring - Beyond all the measurement power, the built-in converter & speaker is one of the most important tools of the DL1. Featuring high-quality headphone output, automatic gain control and monitoring of analogue input signals.
  • Scope - The auto-trigger and auto-ranging scope give a detailed view of the input audio signal in the time domain. The scope visualizes DC offset problems, polarity issues and is ideal for understanding sampling peculiarities.
  • THD+N, Level, Frequency - Beside Level Peak measurements, the DL1 is equipped with RMS measurement techniques including THD+N and high pass filters, allowing easy verification and debugging of dual-domain devices like AD converters.
  • Frequency Sweep - The DL1 automatically triggers a sweep sequence with any step width and records the frequency response. Any stepped sweep may be used as a signal source. After capture all sweep data is available.
  • VU/PPM - The combined VU + PPM meter (VU = volume unit) with numerical maximum hold and over indicators helps identify levelling problems and clipping. Reference grade performance with up to 40 screen updates per second.

Technical Specifications

Frame:Consumer / Professional, up to 24 bit, Sampling frequency fs = 32 – 96 kHz,
Also supports: Interleaved 96 kHz mode on all inputs (single channel double sampling frequency modes)


Signal:Level-FS, level-RMS, signal frequency, THD+N, event logger, frequency sweep, PPM, scope, overload detection, Full-Scale detection
Carrier:Sampling frequency (accuracy ±2.5 ppm), carrier level
Frame:Channel status according to AES 3 (ed. 2003) and IEC 60958-3 (ed. 2003), bit statistics

Event logger

Recording resolution:selectable 1”, 10”, 1’, 10’, 1h
Recording duration:selectable 8’, 83’, 8h, 83h, 20days
Display Δt:1”, 10”, 1’, 10’, 1h, 10h, 24h, all
Recording intervals:max. 500
Single errors in one recording interval:10 - 36 000
Input connectors:AES 3 (110 Ohm) XLR, S/PDIF (RCA), TOS-Link, ADAT, AES 3id (75 Ohm) using Chinch-BNC adapter, phantom power resistant
Monitor:Built-in speaker, headphone connector
Display:Backlit graphic LCD
Power supply:- 3x AA size dry batteries (alkaline), typical lifetime 8 hours
:- External DC power, 7.5 VDC, 500 mA, stabilized, use NTi Audio recommended parts only
Dimensions (L x W x H):163 x 86 x 42 mm (6.4“ x 3.38“ x 1.63“)
Weight:300 g (10.5 oz) incl. batteries
Temperature:0° to +45° C (32° to 113° F)
Humidity:< 90 % R.H., non condensing
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