Brian Davies DeNoise help needed--Waxcylinder??

[ignatz]

Specifically what I do after doing the noise sample, is turn noise-only sound on, crank the output volume way up, and restart deNoise. I listen for anything musical or rhythmic mixed in with the noise, and adjust the noise-floor slider until I can barely hear any noise. I'll check what's getting removed visually by pausing the tool and looking at the display. You really have to read and understand the deNoise manual to make sense of the display. Once I'm satisfied with the settings, I restart the tools without changing any settings. Throughout, I almost always have "Limit Reduction" slider at 9 dB (default was 12 IIRC)

PDX

PDX:

A couple of questions about your technique:

1: You state "You really have to read and understand the DeNoise Manual to make sense of the display". I notice that most of the application's screen space is devoted to Davies' graphs. This is quite different than Audacity, where I pay attention only to the Waveform left and right channels. Do you adjust your Davies' settings PURELY based on your ear, or do you in fact let what your eyes see in Davies' graphs affect your settings?

Offhand, the graphs seem to be a distraction and waste of screen space, to the extent that slider settings and button choices are ultimately driven by ear not eye. I don't want to get bogged down in trying to make sense of the graphs by eye if in the real world the ear controls all and over-rides the eye.

It appears you operate by ear not eye as well? Do you ever adjust anything based on what you see as opposed to what you hear?

2: You state that you leave the limit reduction set at 9, not the default 12. I am guessing this control is very similar if not identical to the "Noise Reduction (db)" slider in Audacity's NR menu? In Audacity, I leave this at the default 12 well over 90% of the time. I will occasionally set it higher for a particularly rough 78. And I will occasionally do one pass at 12 and a second pass at 12 or less. You may be enough younger than I that your ears can detect unwanted effects with a slider at 12 that I cannot detect.

As an aside:

In Audacity, do any of you typically set the other 2 NR sliders (frequency smoothing and attack/decay time) at anything other than defaults? I have done very very little experimentation with these sliders.

Any further comments appreciated.

[pdxrunner]

You state "You really have to read and understand the DeNoise Manual to make sense of the display". I notice that most of the application's screen space is devoted to Davies' graphs. This is quite different than Audacity, where I pay attention only to the Waveform left and right channels. Do you adjust your Davies' settings PURELY based on your ear, or do you in fact let what your eyes see in Davies' graphs affect your settings?

By that statement I simply meant that the graphs can be a bit confusing if you don't understand what Brian was trying to show.

It appears you operate by ear not eye as well? Do you ever adjust anything based on what you see as opposed to what you hear?

I operate mostly by ear. I pause and use the graphs to check visually what I believe I'm hearing. Mostly I use them to check to make sure that I'm not removing too much through the noise reduction. When I pause deNoise, and then select a portion from the wave display at the top that contains music, not just silence, I expect the graphs to show a bit at the high end of the freq. spectrum to show some de-noising, a possibly a bit at the lowest freqs as well. I do not want to see a bunch of 'red' on the graphs in the middle frequencies; which might mean I'm mucking with the music, and not the noise. It's kind of a checks and balances process I follow. It's not and exact science, but more of a gut feel. There are a few records I've done that later on I've thought I was a bit heavy handed on the noise reduction, and others where I thought my ears must have been asleep because I should have been able to do better.

PDX

You state that you leave the limit reduction set at 9, not the default 12. I am guessing this control is very similar if not identical to the "Noise Reduction (db)" slider in Audacity's NR menu? In Audacity, I leave this at the default 12 well over 90% of the time. I will occasionally set it higher for a particularly rough 78. And I will occasionally do one pass at 12 and a second pass at 12 or less. You may be enough younger than I that your ears can detect unwanted effects with a slider at 12 that I cannot detect.

I don't know about that - I'm barely on the shy side of 60 and afflicted with tinnitus. That's why I use the graphic display as well as my ears to help guide the process. I use 9dB reduction rather that 12 because that felt right to me when I started using these tools about a year and a half ago.

For the record, over the last 2+ years I've recorded (and uploaded to iTunes and my iPods & iPhone) 125-150 records. Original material has ranged from 80 year old 78s and to 50 year old stereo recordings that I got from my father-in-law, to my wife's and my collection of 60's , 70's & 80's rock (and new age ), to few brand new LPs. There's even a few well used 45's from the 60's in there too.

[coonsanders]

hi
i dont uderstand the whhole procedure as to how to use this denoisier..i can get a sample from the lead in on a record but im not sure what should be checked for "write,vinyl,shallck" or when
to use the automatic. options.for example if i was doing 78s what would be the procedure for
this?i tried reading the manuel for thiese things but its so complicated(at least for me)any sugg-
estions would be appreciated.

lenny