Guitar post-note spectrum is quite different from piano one. No problem in telling them apart in any sound editor with decent spectral view, given not that many notes played
I personally hate hardware-bundled soft that can't provide data easily and in usable form for outside processing, and at the same time has inadequate analysis tools. There are plenty stand-alone data analysis applications and your clients surely have one of them already. So first thing they need from your soft is data output.
Tab-separated.txt will do:)
Once any given generation -sees- the dirty, bloody, nasty physical reality of war--the coffins coming home, the frontline reports with people getting blown up on camera, the interviews with the troops who have been worn down by months of stress--they stop supporting the 'cause' and start making ugly noises about bringing the troops home. Military line of thought is a bit outdated in this department. The world has changed a lot since Vietnam. If US citizens not have info from their own media, insurgents will be more than happy to lend their help. They are ok at videotaping live action, I should say. And there would be absolutely no control over the content of that single source of info... I wonder if it is even worse in the end
Lossy compression assumes that most of the data is unimportant, which in a dense mix tends to be true due to masking. In a thin mix, though, that assumption falls apart, and so does lossy compression Thin mix, on the other hand, has less information from the start. So more of the bitrate goes to each instrument. Try ABX CD vs 256kbps ABR mp3 piano or acoustic guitar before throwing in "bad, period" statements.
[i]The first collection sounds like it was recorded yesterday. The technique is unbelievably excellent. This is very good news for music preservation.[/i]
There is no way you can capture higher frequences material from old LP, not to mention phonograph. It's just not there and hence can't be picked up whatever the device.
LP's from 40's which I work with, have records go up to 6-8kHz, and nothing higher except hiss. That's a lot. Try it yourself with this low-pass filter applied to modern recording and see if it remains hi-fi sound to you
You can try to restore some higher freq harmonics reconstructing them mathematically from lower ones, but that only succedes with certain instruments having particular spectrum.
Sorry, man. You killed the sound
Judging from the sample you applied too much noise reduction, cutting off some higher frequencies material and making the sound similar to low-bitrate mp3.
Purpose of NR is not to eliminate hiss completely, but to drive it to somewhat lower levels. Else you would mess with aftertones, which would be immediately noticeable. Some uniform hiss is not that bad actually, cause human brain can filter it out pretty effectively. Hardcore tape users can agree with me on this. I do not know how bad is modern open-source soft with NR algorythms actually, Using CoolEdit/AdobeAudition for several years for restoration purposes, so I can only show what non-open-source can do:)
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Guitar post-note spectrum is quite different from piano one. No problem in telling them apart in any sound editor with decent spectral view, given not that many notes played
I personally hate hardware-bundled soft that can't provide data easily and in usable form for outside processing, and at the same time has inadequate analysis tools. There are plenty stand-alone data analysis applications and your clients surely have one of them already. So first thing they need from your soft is data output. Tab-separated .txt will do :)
[i]The first collection sounds like it was recorded yesterday. The technique is unbelievably excellent. This is very good news for music preservation.[/i] There is no way you can capture higher frequences material from old LP, not to mention phonograph. It's just not there and hence can't be picked up whatever the device. LP's from 40's which I work with, have records go up to 6-8kHz, and nothing higher except hiss. That's a lot. Try it yourself with this low-pass filter applied to modern recording and see if it remains hi-fi sound to you You can try to restore some higher freq harmonics reconstructing them mathematically from lower ones, but that only succedes with certain instruments having particular spectrum.
Better do declicking/other manual artifact removal before NR. This way you will not have to clean one more time what's left from clicks
Sorry, man. You killed the sound Judging from the sample you applied too much noise reduction, cutting off some higher frequencies material and making the sound similar to low-bitrate mp3. Purpose of NR is not to eliminate hiss completely, but to drive it to somewhat lower levels. Else you would mess with aftertones, which would be immediately noticeable. Some uniform hiss is not that bad actually, cause human brain can filter it out pretty effectively. Hardcore tape users can agree with me on this. I do not know how bad is modern open-source soft with NR algorythms actually, Using CoolEdit/AdobeAudition for several years for restoration purposes, so I can only show what non-open-source can do :)