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by Trebor
Wed Feb 05, 2014 2:34 am
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

Here's a VERY rough little demo I did on a new song I'm working on. I recorded it last night. It's just me and a guitar through an amp and using a computer mic up to the amp to record with. No effects or anything on it except I did normalize it but that's all. https://drive.google.com/file/d/0B5nmy...
by Trebor
Tue Feb 04, 2014 10:09 pm
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

How's this.... https://drive.google.com/file/d/0B5nmyi3H_VvfWEdqY1ZwSjI5Vjg/edit?usp=sharing That doesn't have any frequencies above 11kHz*. You should examine your recording at each stage of the production process, from initial capture (recording) through to the final mp3 to identify at what stage...
by Trebor
Mon Feb 03, 2014 8:23 pm
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

Trebor - I'll have to look further into it but I can't think of how anything could be at 22050Hz. Audacity quality settings are as shown on the link you provided. But I'll do some more checking and see if I can figure it out. Could any effects processing (VST's etc) cause that? It would be possible...
by Trebor
Mon Feb 03, 2014 3:18 am
Forum: Windows
Topic: 50 Year Old Analog Audio Noise Removal Issue.
Replies: 65
Views: 14002

Re: 50 Year Old Analog Audio Noise Removal Issue.

Of the three "3rd.Master" sounds like the original, un-processed. There's two lots of mains hum on that , one with a fundamental frequency of 61.33Hz , due to the tape running slightly fast, and a second lot of mains hum with a fundamental of 60Hz , (maybe added by the tape player when the...
by Trebor
Sun Feb 02, 2014 11:52 pm
Forum: Audio Processing
Topic: Recording dialogue in the wilderness
Replies: 25
Views: 8186

Re: Recording dialogue in the wilderness

... I noticed when I removed the center on our digital recorder files it eliminated everything. So I'm guessing that doesn't differentiate as much as the camera (what was in the previous mp3)? Or am I missing something. If your digital recorder only has one microphone , i.e. mono not stereo, then t...
by Trebor
Sun Feb 02, 2014 12:47 am
Forum: Audio Processing
Topic: horrible background buzzing noise
Replies: 6
Views: 2312

Re: horrible background buzzing noise

... is there any hope to save it Lots of notch filters required to remove the buzz-hum : copy and paste the code below into something called Nyquist Prompt which is in Audacity's Effect menu ... (setf s (notch2 s 90 5)) (setf s (notch2 s 632 50)) (setf s (notch2 s 899 50)) (setf s (notch2 s 2898 20...
by Trebor
Sat Feb 01, 2014 6:12 am
Forum: Plug-in Archive
Topic: Electric guitar dive effect
Replies: 2
Views: 3065

Re: Electric guitar dive effect

I can only hear an actual slide technique on the guitar to slide the pitch down, rather than some sort of post-processing special-effect ... http://youtu.be/nM__lPTWThU?t=14s
by Trebor
Sat Feb 01, 2014 4:41 am
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

Here it is. Let me know what you think. http://www.reverbnation.com/samhoustonfullblood/song/5367704-shoot-her-memory-down Whatever you've done it has fixed the fluctuating vocal volume :) The next item on the agenda is finding out why the frequencies above 11kHz are absent It's possible to boost w...
by Trebor
Fri Jan 31, 2014 7:49 pm
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

If it was an mp3 made using Audacity then the actual bit-rate cannot be above 320kbps : that's as high as it goes ...
Audacity mp3 export options.gif
Audacity mp3 export options.gif (14.13 KiB) Viewed 874 times
http://manual.audacityteam.org/o/man/mp ... tions.html
by Trebor
Fri Jan 31, 2014 6:28 pm
Forum: Audio Processing
Topic: Improving an old recording
Replies: 77
Views: 8649

Re: Latest

Ok. I got the song remixed and vocals re-recorded. I was going to upload it this morning but now I can't. If you were trying to upload it here the maximum size of an attachment to a post in this forum is 1Mb. A 3minute stereo mp3 will be several Mb in size and too big to attach to a post here. ... ...