Hi everyone, i'm on the lookout for a good quality upsampling DAC, 24/192 or 176.4 would be nice indeed but 24/96 88.2 would still possibly be interesting ;) What i'm after is suggestions on what to look for, however there are a few things that it must have.. At Cambridge Audio we've developed our own method of upsampling audio called ATF Upsampling. One of my equipment makers is run by a couple of audio manufacturing design veterans, Jason Stoddard (Sumo) and Mike Moffat (Theta) . A convoluted story at best. Hitchhiker. James, upsampling is a technique whereby dither, which is noise, is added to increase the word length and sampling frequency of the CD from 16/44.1 to other values, most commonly 24/96 or 24/192. They tend to pay closer attention to the quality of the algorythms that upsample. Ge03. Upsampling is a controversial subject as to whether it improves the sound quality or not. I see no benefit to the consumer based on what I've read here and other places. ... (good or bad is your decision, not anyone else's) I'd also like to stand by what has been said in the past that really good 48/24 sounds tremendously better than … ... Can hi-res turn oversampling and upsampling into the historical obsolescence How should I show how good or bad my downsampling technique is? So the idea that upsampling is good. As I understand it, upsampling does not, and cannot, create new data, it simply (haha, if only it were simple) allows for potentially better filtering among other things, and *if* done correctly, allows sound from CD resolution material to sound much more like higher resolution audio. HiFi staat voor High Fidelity, hieronder verstaat Hifi.nl de hoge natuurgetrouwheid van audio en video componenten en sets. I'm using a Dragonfly v1.2 DAC. Upsampling algorythms are not all alike. Posts: 375. Some believe swear by upsampling, while others deride it. I might go with the upsampling to 192k choice (true, upsampling wont create any better sounding output than the original) as 44.1k to 192k upsampiling is most likely not creating as bad artefacts as the much smaller scale downsampling from 48 to 44.1. You wouldn't be upsampling. Dolby® Upsamples & Apodizes TrueHD | Stereophile.com I cant say whether this is a good or bad thing. A standard CD resolution 44.1/16-bit selection is run through a Weiss Saracon software upsampler (or other high quality converter) to produce a 96 kHz/24-bit “HD Upsampled” file. You need to realize though that not just one parameter makes a good resampler. Windows also doesn't have any upsampling capability. NanoSound CD is the best upsampling and audio extraction software plugin for volumio. Hifi.nl is een online magazine cq internetportal met zeer veel informatie over audio en video gerelateerde merken, producten bedrijven. any help is appreciated. As discussed last month, I've started using Roon as my main music player for the sound room recently. (Because of its association with DVD-Audio, 96kHz is often chosen as the new rate.) Oversampling in the ADC has been around for quite a bit of time, while upsampling of audio that results in a simple rate conversion is relatively newer. If you have a good sound card you can ignore this configuration since most of newer sound drivers support timer-base scheduling. I would say the upsampling is not being done correctly. A simple method to upsample from 48khz to 96khz can use simple averages of two consecutive samples. For upsampling I would stick with higher end gear. A perfect graph in one area might cause artifacts in another area. But in certain cases, it can be bad. We assume that we can sufficiently sample the analog waveform at twice the bandwidth of the signal as to prevent any aliasing in each case. Hitchhiker. I'm interested in hearing your opinion about whether upscaling in itself is good or bad . Some are really quite good, and some are really bad. I noticed that the sound when playing ALAC files (16/44) changed significantly. They tend to pay closer attention to the quality of the algorythms that upsample. Suppose I have time series data at a one-minute resolution. Yes I came upon this yesterday. Ayre Acoustics' main man was talking about "upsampling," whereby conventional "Red Book" CD data, sampled at 44.1kHz, are converted to a datastream with a higher sample rate. Look in the latest catalogs from Music Direct, Audio Advisor, etc. You'd be downsampling from the higher setting that Windows is at. is there a good technique to upscaling a poor quality ~20-22KHz audio file to 44KHz? E.g. There are, and there will be good and bad recordings, and there is no format that will change this. Usually things sound quite aggressive and sharp. Upsampling - good or bad? The sound is going from Windows out to your DAC. Off course, if done badly, upsampling can result in clearly audible signal degradation. I have encuntered the same problem,the scaler module did not work; Could you please tell me how should us to do reset by hardware or software; by the way ,the chip type is zynq7000, and the scaler module's reset pin was connected to VCC_NET. Upsampling algorythms are not all alike. Ge03 OP. Up sampling buys you nothing, except a lot more info to store. I would say the upsampling is not being done correctly. IMO oversampling is a much cleaner process than upsampling. There is absolutely no contest. Nearly all master digital studio recordings are made at higher sample rates and bit depths than a CD can handle, even if it's only 48kHz. In yesterday's post 192kHz?I explained how we wound up with the different sample rates. Oversampling and upsampling are two different animals, and many of the "legit" info sources on the internet are loaded with misinformation, like references to "stair-stepped" digital audio. Upsampling is not really damaging to the audio quality, right? Supports upsampling up to 176.4khz, accuraterip audio extraction ripping. As far as the DAC, the drivers shouldn't allow you to choose a setting it can't handle. Upsampling is a big marketing thing now, like DACs and disc players that upsample to 32bit or even DSD. Lower bass, lower volume. For upsampling I would stick with higher end gear. One particular problem with "special" hi-resolution recordings comes into ... jitter performance of USB audio can be so good as crystal oscillators performance gets. I changed the sample rate on my mac's Audio midi set up to 96 to play hirez files I recently bought. The figure below shows an example of oversampling. Upsampling is a process by which a lower specification audio file is converted into a higher specification audio file using sophisticated software or hardware. Some are really quite good, and some are really bad. Joined: Aug 2012. Now I downsample data by taking mean of every 10-minute window, i.e., after downsampling, 60 readings will reduce to 6 readings. Seeing pixelated Nintendo characters is way better. resample-method: The resampling algorithm to use. Imagine you had two projectors with perfectly identical technical discussion: is upsampling inherently "good" or "bad"? Very high bandwidth settings with very steep filters are causing a lot of bad ringing due to the filters. Because interpolating the data such that it looks more like a line than a flight of stairs is always good. The bluetooth SCO works at 8KHz sampling frequency for Audio IN. Close • Posted by 2 minutes ago. as the analog filters go, they are only as good as their ANALOG design, regardless of the digital conversion that preceeds it. Upsampling audio before D-A conversion Reply #1 – 2009-05-20 11:17:07 The resampling in, say, fb2k, is measurably better than the upsampling / oversampling / reconstruction filtering in even a good digital to analogue converter, never mind in a laptop sound card. Upsampling's or oversampling's intended purpose was to digitally filter out the ultrasonic frequencies above 22 kHz. #179378 2012-12-03 10:43. Milton Keynes, UK. The DAC has to downsample. However, if it's done properly the changes are negligible and don't result it any audible difference. Like on a GBA emulator - using bilinear just blurs things too much, because it has just goddamn too little pixels. perhaps an AI to help it find the lost frequencies? Downsampling. Actually, every TIDAL link in that file is unique. OP. Upsampling is more than stuffing more samples between samples. "Sorry for the recent barrage of questions but here's another: when is upsampling subjectively 'good' and 'bad'?" Many thanks! I have about 1500 standard CDs, and I would say that 30% of them give me really excellent sound, 50% sound pretty good, and 20% sound fair or really bad. Seems this is not an upsampling problem but changing the sample rate certainly changes SQ on CD quality files. Today I thought it might be interesting if I touched on a little known problem with pretty much all CD's. and you'll see plenty of marketing talk about upsampling though. Joined: Aug 2012. Good upsampling methods will attempt to guess original sound correctly and insert new samples based on the guessing. Posts: 375. upsampling/restoring bad youtube audio? A good example of image damage is the "soap opera" effect of motion smoothers in modern TVs. I am reading audio samples from bluetooth headset in my android application. On 3/24/2018 at 12:31 PM, mansr said: Last I checked, about half the entries on that list were duplicates in some form or other. Milton Keynes, UK. I've never been able to tell a difference personally. For example, my old 16 bit Cal Audio Labs, dcs, and Audio Alchemy converters absolutely kill the sound of my brand new Pioneer dvd player, which has 24 bit, 96k converters, when playing cd's. upsampling/restoring bad youtube audio? Most commercially sample rate converters (hardware or software implementations), do a really good job at this. Maybe a good tool for consumers that don't know how to process audio, but for a professional, not so appealing, as was mentioned you raise noise floor with peak normalization and it still doesn't follow perceived levels very well, as the energy of … IMO oversampling is a much cleaner process than upsampling. 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