13 January 2017, 16:01 | #61 |
son of 68k
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Uploading flac files should be enough (at least for me it is).
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13 January 2017, 16:16 | #62 | |
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Quote:
I always used the term "Compander", ie compression/expander, but musos and sound engineers don't like the word, they're too used to the idea that the equipment just compresses. It doesn't. It uses the available bandwidth as best it can. "HeyMrMusic" is the best example of that, on the demonstrator. Double bass is not easy for a microphone to pick up in the first place, if youre recording on Jamaica in the early 60s. Recorded and mixed on a four track, that's not the real ringer... Last edited by Pat the Cat; 13 January 2017 at 16:23. |
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13 January 2017, 16:28 | #63 | |
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Can't handle a little off-topic-ness ? Lol |
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13 January 2017, 16:31 | #64 |
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13 January 2017, 16:42 | #65 |
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OK Akira, I'm off to get that scanning sorted. The HDCaddy?
Laser connections keep cutting out, I must have a bad connection... somewhere inside the thing. Won't be posting here until those scans are online. Including calibration scan so people can check for distortion and adjust accordingly. Better safe than sorry. |
13 January 2017, 18:31 | #66 |
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No, a compressor only compresses. Making quieter parts sound louder is the definition of dynamic compression. Expanders are also common and so are companders which can both compress and expand. All audio engineers know well how they all work.
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13 January 2017, 22:24 | #67 |
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So what did Prodigy do?
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13 January 2017, 22:40 | #68 |
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They made music?
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14 January 2017, 01:29 | #69 |
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I imagine in this context they are talking about making heavy use of overdrive/distortion (which amplify the waveform, and when the peaks exceed the bandwidth it produces 'clipping') in the production of their tracks.
Now I have a question about recording Amiga HW, so if the Paula has four channels all able to play at a sample rate independent of the other three channels, and usually at an unusual rate of Hz. Would there be an optimal frequency to record at which would do as little approximation as possible on the largest amount of notes. Like is there some magic frequency which is a multiple of at least half a dozen of the Amiga's notes. I have a table of Amiga sample rates Code:
PAL NTSC C-2 8287 8363 C-1 4143 4181 C#1 4389 4430 D-1 4654 4697 D#1 4926 4971 E-1 5231 5279 F-1 5542 5593 F#1 5872 5926 G-1 6222 6279 G#1 6592 6653 A-1 6982 7046 A#1 7389 7457 B-1 7829 7901 C-2 8287 8363 C#2 8779 8860 D-2 9309 9395 D#2 9852 9943 E-2 10462 10559 F-2 11084 11186 F#2 11744 11852 G-2 12445 12559 G#2 13185 13306 A-2 13964 14092 A#2 14778 14914 B-2 15694 15838 C-3 16574 16726 C#3 17558 17720 D-3 18667 18839 D#3 19704 19886 E-3 20864 21056 F-3 22168 22372 F#3 23489 23705 G-3 24803 25031 G#3 26273 26515 A-3 27928 28185 A#3 29557 29829 B-3 31388 31677 Last edited by Anakirob; 14 January 2017 at 01:39. |
14 January 2017, 10:09 | #70 | |
son of 68k
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(Think about things such as finetune and vibrato/portamento effects if you still believe it can be lower than this.) |
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14 January 2017, 11:48 | #71 |
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It can easily be sampled with 48 kHz. Any errors sampling at that rate will only be present above 20kHz, thus inaudible. Doesn't matter how the sound was generated.
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14 January 2017, 13:00 | #72 |
son of 68k
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I'm not sure of this. You can't hear the frequency itself but you can eventually hear its harmonics.
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14 January 2017, 13:06 | #73 |
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Any harmonics from frequencies above 20 kHz will be located from 40 kHz and up, so even less audible. In practice it is almost impossible to tell the difference between 48 kHz 16 bit and 192 kHz 24 bit as long as the 48 kHz signal is sampled using the best available methods/filters and not a simple non-oversampling comb-filter like what was used in the early days of the CD. That is one of the reasons why CDs got a bad rep in some circles, but this has been massively improved since then.
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14 January 2017, 13:09 | #74 |
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Where did you get 48 KHz from? From your logic regarding inaudiability, wouldn't 44.1 KHz suffice?
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14 January 2017, 13:19 | #75 |
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Sure, but 48 kHz is the most common sampling rate used today.
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14 January 2017, 13:24 | #76 |
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In practice, 24-bit 96 KHz sounds a heck of a lot better than 16-bit 44 KHz... I'd say around 4 times better. You get denser sound, more constant, more alive, more real - more accurate.
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14 January 2017, 13:25 | #77 |
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I'm with meynaf on this one, there is a notable 'feeling of warmth' which digital technology never quite seems to match. Perhaps this is just the effect of mild analogue distortion, but nonetheless there are many audio purists who swear by analog.
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14 January 2017, 13:32 | #78 |
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The sample rates need upping to a couple of MHz or more then it'll be as good as analog. It's all coming now, you can buy recorders that can do this. They're not doing it for a joke, they're doing it because people have been telling them for over 30 years that CD's sound crap, and finally they have listened.
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14 January 2017, 13:33 | #79 | |
son of 68k
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So 20Khz can give 10Khz, 5Khz, and many others. They ARE audible. This is why 44.1Khz, in spite being already kinda oversampled, can be differentated from 48Khz by someone with good musician's ear. |
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14 January 2017, 13:57 | #80 | |
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It can be proven mathematically that 44.1kHz can provide a perfect reproduction of all frequencies from DC to 20 kHz. Since the human hearing does not go beyond this range, 44.1 kHz should be enough for perfect reproduction. The only issue here is that it is impossible to make infinitely steep low-pass filters. In the early days, the filters were very poorly made and allowed high frequencies to fold down into the audible range, known as aliasing. This sounds very bad. Today modern DSP and oversampling techniques means that these filters can be made a lot better and in practice can push aliasing products down below -100dBFS in the audible range so they are no longer a problem. This is a bit harder with 44.1kHz than with 48kHz.
Formats like SACD which samples at MHz is a different process altogether since they only sample with 1 bit but with heavy oversampling. Most 48 kHz samplers also sample in the MHz range but will then decimate the signal to reduce the sampling rate but gaining bit depth. The reason some people prefer analog is due to the imperfections which can add 'warmth' and 'personality' to the sound. This is also why some people prefer valve amps over transistor-based ones. Regarding harmonics, they are per definition multiples of the fundamental frequency. From https://en.wikipedia.org/wiki/Harmonic: Quote:
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