| Digital audio recorders and digital recording technology | | | | whole world of digital audio recorders far more |
| is a relatively new product on the emerging technology | | | | accessible to smaller companies wanting to monitor |
| markets in the 21st century, this is mainly due to the | | | | phone calls and conversations, as well as government |
| fact that previous audio recorders of earlier years | | | | departments wanting to be independent and hold their |
| were severely constrained by the size, or rather a lack | | | | own records. |
| of available drive space per hard disk, thus rendering | | | | Digital recording can be either purpose built hardware |
| them as only usable within huge rack arrays of large | | | | models or made by some simple customization of a |
| companies located in monitored server rooms much | | | | basic desktop PC, PCMCIA cards are commonly |
| like we remember them in science fiction films from | | | | available on the market now to convert up to 4 |
| the 1960s. | | | | channels of analogue audio per card into a digital |
| Towards the latter half of the last decade, drive space | | | | format which is easily archived and stored either |
| on physical drives has increased exponentially, now | | | | on-site or remotely via web uplink or FTP protocol. |
| giving us terabytes of space in computers or rack | | | | Internal security policies can be easily adhered to when |
| mounted digital audio recorders, also software | | | | moving audio from digital audio recorders, either by |
| compression has come along in leaps and bounds | | | | moving the data physically or by secure Ports or VPN |
| complimenting the increase in available space equally. | | | | protocol to a remote site. |
| We now find the latest state of the art digital audio | | | | Digital audio recording and the technology surrounding |
| recorders can come in just '1U' 19" that are capable or | | | | them has exponentially increased, along with |
| recording basic speech at variable bit and sample | | | | compression formats of formats such as MP3 and is |
| rates for up to 20 years continuously. This makes the | | | | widely available and accessible to most companies. |