5 ms·
What data are you compressing?
by colejohnson66 4y ago
What data are you compressing?
- nimish 4y agoI've used it to record oscilloscope captures. Especially useful since audio cards are cheap high res adc's.
- mywittyname 4y agoI'm amazed that consumer-grade audio cards are still available and cheap, to be honest. I can't recall having seen one in years, then again, I haven't had a reason to look for them in years either.
- wheels 4y agoTo be clear: actual "PCI-slot"-ish audio cards are now rare. But USB / Thunderbolt (and previously Firewire) external interfaces are a dime a dozen. Serious audio mostly uses them now.
- baybal2 4y agoMicrochips are cheap, once initial investment is made. I guess, it only costs ~10¢ for new SoundBlasters at 90nm-130nm. The price of 10 sound cards will be enough to pay for a whole wafer.
- zymhan 4y agoCreative is still marketing them to gamers, amazingly. Can't say I haven't been tempted.
- ska 4y agoPretty common for any hobbiest who wants to record things too.
- nimish 4y agoAnything with a mic input will work. Audio interfaces over USB are plentiful these days though the discrete PC sound card is pretty rare :(
- leetcrew 4y agoit's a weird market segment. the inside of a computer is not a great place to put a DAC, due to the EMI from all the other components. an audio enthusiast is going to strongly prefer running optical or USB to an external DAC/amp. a non-enthusiast is likely to be happy with whatever comes with their motherboard. it's hard to imagine a scenario that actually makes sense for a high-end audio card, but I'm sure some people buy them anyway.
- aidenn0 4y agoNow that 24b/192kHz cards are widely available, I wonder if you could hook a loopstick antenna up to one and get WWVB (60kHz carrier)? In theory as long as the signal is above -144dB you should be able to tease it out...
- jmole 4y agoSNR even on the best converters is unlikely to be better than 120dB, but still - seems likely.
- pavon 4y agoA variety of sensor data. Nothing coming straight off an ADC needs 32-bits, but I do have need for it in various cases. * The sensor system wants to do unit conversion for me. This data doesn't really have 32-bits of dynamic range, but for archival purposes I'd like to store the exact bits without adding another quantization step - that can happen later. * The sensor system combines multiple ADC channels HDR style. I'd rather get the raw readings and do the combining myself, but don't always have access to it. * Some more advanced preprocessed results, akin to a GPS solution. Linear predictor based algorithms are perfect here since the full possible set of values does have high dynamic range, but the upper bits change very slowly.
- messe 4y agoI'm kinda curious. What kind of sensors? (If you're able to divulge it that is; which given how you've phrased it, I wouldn't be surprised if you're under NDA or similar)