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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: KOQI
  • Model Number: 8CH
  • Channel: 8CH
  • Frequency response: 300Hz to 3400Hz
  • Control: By Computer
  • Record Audio Format: MP3,WAV,REC
  • Pirce: Cheap
  • Quality: Super
  • Warranty: 1 year

Packaging & Delivery

Packaging Details standard packing
Delivery Time sample order within 3 days and bulk order within one week


digital voice recorder software
1. Interface: PCI
2. CE certification

      8 lines digital voice recorder software        


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.

Absolutely automatic digital record system, the content can be saved more than one year.


One card has 8 ports, can put 4 cards on one computer. / One card has 16 port, can put 2 cards on one computer.


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:
32bit Windows 7,Windows 2000 and Windows 98, Server, does (on the Server), and Windows XP


Programming languages:
Visual c + +
Borland c + + Builder
Visual Basic
Power Builder




Public safe record.


Digital record system


Bank insurance and security department, government and military organization.

Delivery time: Sample order within 3 days and bulk order within one week.

Payment: T/T .Western union .Paypal.Escrow

Warranty:12 Months

8 Channels call quality monitoring for call center recording


Transaction History of the Supplier

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Transaction Overview


Transaction Details

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Trade Assurance
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
6 Transactions 7,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $300,000
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