Uniden BC246T Betriebsanweisung PDF herunterladen (Seite 71)

ScanControl

One Program, Multiple Scanners, Made in USA

Intelligent Audio Capture (IAC)

Intelligent Audio Capture, or IAC, provides the ability to record to your PC hard disk the audio normally

heard from your scanner’s speaker or earphones. These audio files can then be played back using any

PC media file application such as iTunes or Windows Media Player. IAC is intelligent in that it records

audio in “streams”. Each stream is a continuous audio recording of each channel, TGID or search hit

that has been active during the recording session. ScanControl can currently accommodate up to 100

parallel active streams at one time. IAC also drops out any “dead air”, time when there is no activity on

a particular channel, TGID or search hit. This means the final recording is a condensed, continuous

stream of a single channel, TGID or search hit for the entire time the recording session is active. Of

course, the scanner can only receive one channel, TGID or search hit at a time so the audio streams will

be made up of only the audio segments, called snippets, that are actually received by the radio. See the

diagram below: Each snippet represents a slice of time when the channel has gone active during a

scanning / search session. If the radio stops on that time slice then IAC records that audio and places it

in the file for that channel / TGID / search hit. If the radio does not stop on a particular channel / TGID /

search hit because it is receiving another one, (e.g. snippet5 vs snippet2, snippet7 vs snippet1) then, of

course, that piece of audio is never received so it cannot be recorded. The grey snippets below represent

times when the channel / TGID / search hit went active but was not recorded because the radio was

“listening” on another channel / TGID / search hit.

Figure 49 - Intelligent Audio Capture

Implementing Intelligent Audio Capture (IAC)

1. Audio From Your Scanner – The scanners that ScanControl supports have different methods of

transferring the received audio to the PC. The table below shows each model ScanControl

supports and the recommended way to connect the scanner to your PC’s sound card. Please note

the cautions and warning statements in the chart as an incorrect connection can damage your

radio, sound card or both. In all cases you will need an audio “patch” cable, stereo or mono

depending on your radio, to connect your radio’s audio output to your PC’s sound card input.

Our testing shows a stereo cable works with all radios even though some only output one

channel. Pay particular attention to the Audio Volume from Radio column in the table below.

On some radios the audio level (volume) has to be controlled using the volume control on the

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Uniden BC246T Betriebsanweisung Seite 71