Author Topic: What is the best Sound card to use for IQ Audio input for SDR use?  (Read 3613 times)

Anton Janovsky (ZR6AIC)

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What is the best Sound card to use for IQ Audio input for SDR use?

Anton Janovsky (ZR6AIC)

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Re: What is the best Sound card to use for IQ Audio input for SDR use?
« Reply #1 on: December 14, 2013, 10:26:57 AM »
It is not necessary to get a high performance card to begin.
The internal sound cards of most computers or laptops can do 48k or 96k sampling if you are lucky.

For PCI type Sound cards I would recommend the Xonar D1 from ASUS and the Delta 44 form M-Audio.

The Xonar D1 http://zr6aic.blogspot.com/2013/01/add-asus-xonar-d1-sound-card-to-my.html
1) it has one stereo channel and is supported by Linux and Windows.
2) Analog Recording Sample Rate and Resolution :44.1K/48K/96K/192KHz @ 16bit/24bit. Ideal for the Softrock SDR receivers.

M-Audio Delta 44 2x Stereo inputs.
1) it has two Stereo input (4 mono) and is supported by Linux and Windows.
2) Analog Recording Sample Rate and Resolution 24-bit/96kHz full-duplex audio interface. Ideal for the Softrock SDR receivers.

External USB Audio interfaces can also be used.
1) the cheaper version can only do 48khz sample Rate. (need stereo input some mike inputs is only mono)