T
Tim Gillett
Banned
So what about the person who comes along to this or any other forum seeking some sound, unbiased audio recording advice? What should they expect from this forum?
So what about the person who comes along to this or any other forum seeking some sound, unbiased audio recording advice? What should they expect from this forum?
So what about the person who comes along to this or any other forum seeking some sound, unbiased audio recording advice? What should they expect from this forum?
They will get biased recording advice ... same as any other forum. No such thing as unbiased advise ... if there is, I certainly don't want any of it! (How can you give advice without incorporating your experience and perspective?)
So what about the person who comes along to this or any other forum seeking some sound, unbiased audio recording advice? What should they expect from this forum?
If there is anyone who'd like to honestly take the tape media side, I will post "the weaknesses of digital recording".
I'm not sure of the specific low end frequencies which need to be in mono in order for the cutting engineer to not have problems but 300hz sounds on the high side to me. Something closer to 80hz and below is probably closer to reality. The 15Khz LPF deal on the top end also seems too low as I can't see any higher frequencies above that messing up the the cutter's job.For vinyl mastering I have read that only a little compression should be used with no peak limiting. I must LPF at 15KHz and HPF at 40Hz. I must mono everything below 300Hz. I must de-ess the hell out of vocals. Any other ideas/do I even need to do all of this? I am in contact with the cutter himself so he's also giving me pointers.
If I'm doing test mixes onto say cassette (keeping the whole project analog!B-)) or CD will this give me the wrong idea of the sound of the finished vinyl? I have asked about a test pressing but am waiting to hear back from the cutter.
Thanks in advance for any advice! Hopefully I have posted this in the right section and hopefully I can make a really warm yet gritty-sounding recording from the gear I have!... Overdriven valve-powered springline reverbs etc!!!
Vinny
ghost of fm said:In a general sense, I'd say to just go ahead and create a stereo master that sounds as good as humanly possible to your ears and let the vinyl mastering engineer worry about how to squeeze that onto the cutting lathe.
lonewhitefly said:The mono bass thing has to do with potential phase problems. If have bass frequencies panned (especially two different bass frequencies panned, like a stereo synth or something), this can create problems in cutting and make it so the cutter has to center the bass frequencies on the mix. If you can work it out with just the offending instrument(s), you save the entire mix from extra processing. Some people just say, "center your bass frequencies" because it's easier.
I'd been wondering about that... if it would cause phase issues if that weren't the case. Low frequencies out of phase with each other create a really violent 'wobble' in the signal and that could really screw up the tracking of the cutting implement, right?
yeh, something like that. I'm sort of ignorant regarding why it can be a problem ! The thing is, I've heard records hard-panned really weird (drums on left, bass on right) ... but I think it comes back to the fact that almost anything can be cut, but who knows what the guy cutting it had to go through to get it? There's also the issue of playback ... it might cut fine but playback like $hit. that's where the test pressings come in. I had to get mine cut twice because the first test pressings were too hot.
Mixing with vinyl in mind is a good idea, but I wouldn't focus too much on any specific 'rules'. As mentioned earlier, the artistic quality of the mix is most important.
But the idea of mixing with the limitations of vinyl in mind is based on avoiding additional processing if possible. Think of it this way: anything that you are thinking of doing to the final mix can probably be done better by the mastering engineer. But if there is a specific element that might cause problems, it's better to fix that element than have the engineer 'fix' the entire mix because of that element.
For instance, de-essing (or watching the 's' sounds during tracking) on a vocal is better than the vinyl cutter sending the entire mix through a de-esser if there is too much distortion there.
Watch for high frequency spikes (usually cymbal crashes, etc.) ... if you tame it while mixing, then the cutter won't have to use extra compression. The deal with vinyl is it's a constant battle between surface noise and level. If you have too many dynamics, the cutter will have to apply extra compression to get a decent consistent level.
The mono bass thing has to do with potential phase problems. If have bass frequencies panned (especially two different bass frequencies panned, like a stereo synth or something), this can create problems in cutting and make it so the cutter has to center the bass frequencies on the mix. If you can work it out with just the offending instrument(s), you save the entire mix from extra processing. Some people just say, "center your bass frequencies" because it's easier.
Cutting vinyl is unpredictable and many experienced engineers cannot predict how the track will cut until it's done.
I learned a few things when pressing vinyl recently ... I mixed mono, so none of the phase/stereo issues came up. But I will say that vinyl doesn't take EQ as well as tape or CD. I would shoot for the most natural sound possible. Make sure you don't try to squeeze too much material on it ... and press 45 if you're going 7" (I didn't). And placing the hotter or brighter cuts toward the beginning of a side & darker and/or quieter cuts toward the center is for real.
Additionally, if you wish keep it all-analog, you will need to find a mastering house that cuts without a digital delay ... there are only a few around. Basically, most vinyl (actually fairly common since the late '70s I believe) is cut with a digital delay between the source and the vinyl cutter ... essentially negating the all-analog process. A delay is required to prevent damage to the cutting machine ... but a special tape machine must be used in the analog realm.
Additionally, if you wish keep it all-analog, you will need to find a mastering house that cuts without a digital delay ... there are only a few around. Basically, most vinyl (actually fairly common since the late '70s I believe) is cut with a digital delay between the source and the vinyl cutter ... essentially negating the all-analog process. A delay is required to prevent damage to the cutting machine ... but a special tape machine must be used in the analog realm.
Having never been personally involved with disc cutting, though I read a fair bit about it over the years, I learned today from lonewhitefly that it was fairly common to have a digital delay stage in the audio chain since the late 70's.
I knew about the need for a delay of some kind. The older method achieved the delay by using a special playback head which read the audio slightly ahead of the proper playback head. This gave the lathe time to widen the groove spacing for the loud passage coming up, or to narrow the groove spacing when the music went quiet. It resulted in fitting more grooves per inch, and therefore longer playing time per side than would otherwise be possible. Neat trick.
As I understand him, lonewhitefly says that from the late 70's it was common to replace the special head with a digital delay.
Wow, think about that. All those 100% analog only vinyl records put out from the late 70's onward which were all analog...werent all analog at all. They went through an analog-to-digital audio stage, and then a digital-to-analog audio stage. Wow, just wow.
And does that shed a possible light on why the OP all of a sudden stopped posting here, right after someone suggested that the adding of a digital stage in the disc cutting signal chain wouldnt change the analog sound at all, and which we have now been told has been in operation in disc cutting for the past 30 years anyway? That someone was me. And I didnt even know until today that a digital audio stage was common in disc cutting from as far back as the late 70's. So now, even more than when I made my initial comment, I stand by what I said. Thankyou lonewhitefly for the extra information.
The picture from Steve Hoffman shows the older system which was totally analog, by virtue of its special extra playback head, and which apparently SH still uses for a 100% analog disc cutting system system.
Maybe the OP needs to find an ME like Steve Hoffman with that older pre digital system.
And maybe some of you "true believer" guys need a reality check. What you thought was 100% analog vinyl was at some point 100% digital, and you didnt even know it. "bummer" indeed...
Tim G
Maybe the OP needs to find an ME like Steve Hoffman with that older pre digital system.
And maybe some of you "true believer" guys need a reality check. What you thought was 100% analog vinyl was at some point 100% digital, and you didnt even know it. "bummer" indeed...
Tim G
That is why records from the late 70's and before are the best sounding!
VP