Home |
Search |
Today's Posts |
#1
Posted to rec.audio.tech
|
|||
|
|||
Sound cards real bandwidth
Hi!
I'm working on a project in which I send analog signals from PC (LabView) at frequency of (0-60)KHz. I wonder if there is a possibility to send such signal via soundcard... I found that some models with 192kHZ C/A have wider bandwidth than 22KHz. For example: Sound Blaster X-Fi: Audio Output: Response bandwidth (10-88000)Hz M Audio Audiophile 192: Audio Output in some specs response bandwidth (20-80000)Hz in manufacturer specs bandwidth +/-0.1dB, 20Hz to 20kHz but at 48kHz sampling rate But is that for real? The best solution will be to test these soundcards, but I don't have such a possibility, so if someone knows something in this matter I'll be grateful Cheers, Martin |
#2
Posted to rec.audio.tech
|
|||
|
|||
Sound cards real bandwidth
"katzenjammer" wrote in message ... I'm working on a project in which I send analog signals from PC (LabView) at frequency of (0-60)KHz. I wonder if there is a possibility to send such signal via soundcard... I found that some models with 192kHZ C/A have wider bandwidth than 22KHz. For example: Sound Blaster X-Fi: Audio Output: Response bandwidth (10-88000)Hz M Audio Audiophile 192: Audio Output in some specs response bandwidth (20-80000)Hz in manufacturer specs bandwidth +/-0.1dB, 20Hz to 20kHz but at 48kHz sampling rate But is that for real? For the M-Audio, yes. Or buy a Lynx soundcard for even more critical measurements. I wouldn't touch a Creative card for any serious measurement (fine for games) There are RMAA tests of these cards available on the net. Arny can probably point you in the right direction if Google can't. MrT. |
#3
Posted to rec.audio.tech
|
|||
|
|||
Sound cards real bandwidth
For the M-Audio, yes. Thanks. I've found detailed specs: frequency response: +/-0.1dB, 20Hz to 20kHz @ 48kHz +/-0.1dB, 20Hz to 40kHz @ 96kHz +/-0.5dB, 20Hz to 80kHz @ 192kHz Should be OK. There are RMAA tests of these cards available on the net. Arny can probably point you in the right direction if Google can't. Thanks a lot! Martin |
#4
Posted to rec.audio.tech
|
|||
|
|||
Sound cards real bandwidth
"katzenjammer" wrote in message ... Hi! I'm working on a project in which I send analog signals from PC (LabView) at frequency of (0-60)KHz. I wonder if there is a possibility to send such signal via soundcard... I found that some models with 192kHZ C/A have wider bandwidth than 22KHz. For example: Sound Blaster X-Fi: Audio Output: Response bandwidth (10-88000)Hz This could be true. It is a relatively expensive card (ca. $300+) M Audio Audiophile 192: Audio Output in some specs response bandwidth (20-80000)Hz in manufacturer specs bandwidth +/-0.1dB, 20Hz to 20kHz but at 48kHz sampling rate But is that for real? IME M-Audio is for real, across the board. I have an AP 24192 that I tested with the Audio Rightmark program at 44, 96, and 192 KHz In my 24/192 loopback test, response was less than 1 dB down at 83 KHz, both channels. Remember, this includes losses in both the record and playback sides of the card. The roll-off is smooth, there are no appreciable peaks or ripples. The card delivers some of its best specs or equals its best specs when running 24/192. That's no surprise for frequency response, but is a surprise for dynamic range. |
#5
Posted to rec.audio.tech
|
|||
|
|||
Sound cards real bandwidth
IME M-Audio is for real, across the board. cut Thanks. You've helped me a lot! Martin |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
on topic: we need a rec.audio.pro.ot newsgroup! | Pro Audio | |||
Just for Ludovic | Audio Opinions | |||
Some Recording Techniques | Pro Audio | |||
Creating Dimension In Mixing- PDF available on Request (112 pages0 | Pro Audio |