The Net-Log has been specifically designed for long-term recording and archival by the use of a dedicated hardware recording platform with a simple network connection for audio playback. Playback software on a network connected PC streams the audio to the desktop where it can be played out or saved as a file. The Sonifex Net-Log is a 4 channel audio logger which can record weeks of programming on a large internal hard-disk. The unit was designed as dedicated hardware for reliability reasons, i.e. there’s no PC motherboard in this machine. Although PC based systems are great for playback, they generally aren’t robust enough for continuous recording 24/7/365. The Net-Log was designed from the ground up to offer : High reliability for continuous operation.
Easy to use Windows™ remote operation for playback, archiving, streaming and configuration.
Independently configurable channel pairs to record at different sample rates, different bit rates and in mono or stereo.
Recording duration configuration of the channels to suit your needs, e.g. 2 channels of low quality logging for 12 months together with two channels of high quality logging for 1 month, on one machine.
Record inputs can be controlled remotely, e.g. snoop recording from mic-live output of a mixer.
Automated voice recording - each channel can start and stop recording automatically by setting audio threshold levels, which means that it can be used for voice controlled systems and telephony recording.
Up to 250,000 recordings per channel can be made.
Each Net-Log has its own IP address, so a number of machines can be installed on the same network.
Fail-safe alarm indicators and remotes.
Password protection and security access rights to system.
Support for hard disk sizes up to 2048GB.
Recordings can be made using optional G.729 algorithm, allowing longer recordings and lower network traffic. G.729 audio quality is comparable to MPEG L2 at 32kbits/sec when used to record/playback speech.
Recording on Net-Log can be controlled serially by Crestron and Televic board room controllers.
Typical Applications
Recording radio station off air transmissions for regulatory purposes, recording board room proceedings, recording courtroom trials.
Product Category
Logging Hardware
Technical Specifications
Audio Specification
Input Impedance: >10kΩ balanced.
Maximum Input Level: +20dB.
Distortion: <0.1% @ 1kHz + 16dBu.
Signal to Noise Ratio: 90 dB RMS A wtd. 22kHz bandwidth.
Wow and Flutter: Unmeasurable.
Phase Error at 10kHz: Unmeasurable.
Please note that the audio specification of the play output depends on the soundcard that you have installed on your PC. Net-Log is a recording device and has no audio output of its own.
Rear Panel Connections, Controls and Indicators
Analogue Inputs: 4 x XLR 3 pin socket.
Input Level Controls: 4 x Rotary pre-set potentiometers.
Network: RJ45 10Mbps ethernet.
Network Status LEDs: Rx, Tx, link and collision.
RS232: 2 x 9 way D-type plug.
Alarm Outputs and Remote Inputs: 15 way D-type plug.
Power: IEC Power plug, 95-265 VAC, 47-63Hz.
Controls and Indicators
Front Panel Controls: Record control to instantly start recording
Front Panel Power Indicator: Power LED (blue)
Front Panel Alarm Indicators: 2 x Alarm LEDs, disk drive alarm LED (red), archive alarm LED (red)
Front Panel Level Indicators: 4 x Analogue input level LED, 1 for each channel (green, orange, red)
Rear Panel Network Indicators: 4 x LEDs, receive (RX), transmit (TX), link and collision LEDs
Additional Information
Sample Rates: 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz and 48kHz
Audio Format: Mpeg layer 2 with bit-rates as below and G.729 low bit rate
Recording Types: Mono, dual mono, stereo
Hard Disk Capacity: 1TB HDD
PC Soundcard Needed: Any windows compatible soundcard that can play PCM (.wav) audio files
Equipment Type
Net-Log-01: Net-Log 4 channel audio logger, with large hard disk (contact sales@sonifex.co.uk for current sizes available)
Physical Specification
Dimensions: (Raw): 1U 19” rack x 22cm deep 48cm (W) x 22cm (D) x 4.2cm (H) (1U)
Dimensions: (Raw): 1U 19” rack x 8.7” deep 19” (W) x 8.7” (D) x 1.7” (H) (1U)
Boxed Dimensions: 55.2cm (W) x 29.5cm (D) x 16.5cm (H)
Boxed Dimensions: 21.7" (W) x 11.6" (D) x 6.5" (H)
