1. Ultra-High Performance Low-Power Audio Recorder
Miniature
Ultra-High Performance
Low-Power Audio Recorder
Update Feb-2016

2. SoundByte Introduction
Ultra-high quality miniature 2 or 4 channel audio recorder
True 20 bit linear performance:
> 100 dB dynamic range
No AGC required
Capture from a gun-shot to a whisper
Recordings are ideal for post-processing
Internal or optional external Knowles microphones
Record control via buttons, external trigger, 2 timers and VOX

3. Front Panel Interfaces
Removable SD card of up to 128 GB:
Over 33 days of stereo recording, 66 days mono.
Recessed front push switch:
Reset to defaults
Status LED:
Recorder status and audio level indicators
Covert mode to automatically disable LED after 10 seconds.

4. Rear Panel Interfaces
DC power input with record control input and audio monitor output.
2 or 4 external microphone inputs with bias for Knowles mics.
USB-2 interface for file download & unit configuration.

5. Internal AAA Battery
Powered by external supply or internal AAA battery:
Standard alkaline or lithium cell
> 24 hours of high quality stereo recording with standard alkaline cell.
> 40 hours with a lithium cell

6. Maximum Record Times
When externally powered, SoundByte can record for up to 66 days with a 128 GB card
Card Capacity
Mono kHz
Stereo kHz
Quad kHz
Mono 11 kHz
Stereo kHz
Quad 11 kHz
1 GB
12.4 hrs
6.2 hrs
3.1 hrs
1.5 hrs
32 GB
16.5 days
8.3 days
4.1 days
2.1 days
128 GB
66.1 days
33.0 days
33 days
Record Time Vs Card Capacity / Record Mode

7. SoundByte Playback Security features:
Encrypted recordings to hidden partition
Embedded time / date code in file
Files cannot be reordered or deleted
Sound Control PC software package:
Pre-deployment configuration via USB
Play recordings directly from the card without downloading or conversion
Export of recordings in 32bit WAV format with embedded date & time code + SHA-256 hash codes

8. SoundControl Player

9. SoundControl Configuration

10. 4 Channel Mic Array External 4 channel microphone array.
Allows for “beam steering” of playback using SoundControl:
User selectable enhancement of audio from front, back, left or right by up to 16 dB
Enhanced clips can be export as WAV files.

11. 4 Channel Playback With SoundControl
Enhance
audio from
different directions
Choose which channels
to playback

12. Micro-SoundByte (preliminary information)
Ultra-miniature stereo audio recorder with SoundByte features & performance.
Only 27 x 21 x 8 mm (0.37 x 0.82 x 1.02”)
Internal rechargeable battery with >15 hours record time.
Fast USB download of files
Up to 20 MBytes per second download speed.
1 x Internal + 1 x external Knowles
Ultra-slim external battery version for highly covert installations.
Only ¼ inch high

13. Interfaces and Dimensions

14. Micro-SoundByte WiFi Module Proposal

15. Micro-SoundByte WiFi Module
Live mono audio monitoring
MP3 streamimg compatible with web browsers, including Android and i-OS
Control of recorder via WiFi
Store & Forward
Up to 8 Mbps transfer rate (~3.6 GB per hour)
Mono flies downloaded at x14 record rate, faster with optional ADPCM compression
Supports WPA2 encryption
Internal battery or external DC supply
Operation with 3/4G wireless hotspot planned.