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Recording card
Voiceing card
Product appendix
Sound card application function
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Name:16 group recording cards




PCI card interface
The unique DSP processing structure, can real-time, highly efficient digital recording every line of independence and playback.
The unique DSP processing structure, each line of the digital recording and playback can simultaneously and independent.
Can dynamically select a different voice encoding speed, and real-time speech compression and decompression, such as the 32kbps ADPCM, 64kbps PCM.
Provided the reliable buttons (DTMF) detection, the recording and playback, immediate response DTMF buttons.
The unique signal Generation) and (Detection algorithm identification (can accurately identify the audio signal frequency of arbitrary or any of the audio signal frequency.
Reliable pressure control or sonic test.
With a caller id (Calling) Identity Delivery.
With ST - BUS and MVIP - BUS BUS, can achieve barrier-free surveillance.
Card with a processor and large capacity, no additional CunZhuQi occupy host resources.
The driver using event-driven structure, convenient multi-channel programming.

Technical indicators:
Interface: two lines analog tape
Interface impedance: 10M ω
Frequency response: 300Hz 3400Hz ~
On 256K 32K buffer: an uploaded file. -
Digital voice: A/u my PCM, ADPCM. -
Data rate: 64Kbps, 32Kbps, 16Kbps
DTMF code: 0-9, *, #, A, B, C, D
Caller: 2634 FSK, DTMF
FSK modulation mode:
Logic 0:2200Hz ± 1%
Logic 1:1200Hz ± 1%
Binary data transfer mode: asynchronous serial manner

Operating system:
Windows 2000 and Windows 98, Server, does (on the Server), and Windows XP
Programming languages:
Visual c + +
Borland c + + Builder
Visual Basic
Power Builder
Recording system, recording monitoring

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