Hi there-
This'll be my first post on this msg board.
Well, I like Amadeus Pro a lot and I'm using it more than I used Audacity.
My first question is re: is if you can remove distortion after eq'ing a amad track. I will attach a link for those who can help. Just to let you know, I'm eq'ing to the point where the WAV briefly hits the "ceiling" or begins to distort. I used to normalize my songs, but now I'm eq'ing them to the point where the WAVs are louder in volume and I occasionally come across this distortion. I'm sort of new to all of this. I just hope that there is such a filer that removes the distortion.
NOTE: I have posted my recordings (actually live bootlegs) that I go beyond normalizing and there's no distortion--even listening w/headphones.
Would I use one of the filters to remove the distortion? Is that possible? I'm a noob, so please forgive my misunderstanding.
Thanks!
darsh
Sample w/the problem I'm having:
http://el1011.com/Houston/Houston02Bender.m4a
@ 0:41secs
@ 1:05secs
At these times, I can hear the slight distortion.
To hear more of my bootlegs go to: http://el1011.com
Beyond Normalizing: Smidgeons of Distortion...
Moderator: Martin Hairer
-
Gerard Bik
- Posts: 353
- Joined: Fri Nov 10, 2006 9:04 pm
Beyond Normalizing: Smidgeons of Distortion...
Welcome on board.
Your first question is the one we all have asked at one time or another, hoping to be able to revert distortion. Sadly, it is a one way process. Whatever has been clipped is gone forever.
The iron rule of digital audio is: allow NO distortion, always keep some headroom.
When you want your recordings to be louder, use bigger amplifiers.
Gerard
______________________ _
Gerard Bik grafische vormgeving
Van Aerssenstraat 263
2582 JM Den Haag
070 3554081
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Your first question is the one we all have asked at one time or another, hoping to be able to revert distortion. Sadly, it is a one way process. Whatever has been clipped is gone forever.
The iron rule of digital audio is: allow NO distortion, always keep some headroom.
When you want your recordings to be louder, use bigger amplifiers.
Gerard
--Hi there-
This'll be my first post on this msg board.
Well, I like Amadeus Pro a lot and I'm using it more than I used Audacity.
My first question is re: is if you can remove distortion after eq'ing a amad track. I will attach a link for those who can help. Just to let you know, I'm eq'ing to the point where the WAV briefly hits the "ceiling" or begins to distort. I used to normalize my songs, but now I'm eq'ing them to the point where the WAVs are louder in volume and I occasionally come across this distortion. I'm sort of new to all of this. I just hope that there is such a filer that removes the distortion.
NOTE: I have posted my recordings (actually live bootlegs) that I go beyond normalizing and there's no distortion--even listening w/headphones.
Would I use one of the filters to remove the distortion? Is that possible? I'm a noob, so please forgive my misunderstanding.
Thanks!
darsh
Sample w/the problem I'm having:
http://el1011.com/Houston/Houston02Bender.m4a
@ 0:41secs
@ 1:05secs
At these times, I can hear the slight distortion.
To hear more of my bootlegs go to: http://el1011.com
_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
______________________ _
Gerard Bik grafische vormgeving
Van Aerssenstraat 263
2582 JM Den Haag
070 3554081
_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Simple rules to avoid distortion, i.e. digital clipping:
1) Use a 24-bit interface to capture your source. Current Macs are all capable of recording 24-bit audio using the line input; it's not exactly professional hi-end quality, but it will perfectly suffice for vinyl digitalizations, or, like in your case, for bootleg live recordings. Use the Audio-MIDI-Setup app to change your default input.
2) Logically then, record to a 24-bit file. You can now leave enough headroom to avoid any clipping while recording.
3) EQ the raw recording first, then edit. No need to change the gain yet.
4) Normalizing is the second to last step, the very last step being the conversion to 16-bit/44.1 kHz for CD burning. (Note that Amadeus Pro utilizes Apple's built-in CoreAudio converter which isn't exactly "pro" either.)
That said, one of the major flaws of Amadeus Pro for precise audio editing is, that the waveform display doesn't precisely represent the actual peaks when zoomed out. I don't know what algorithm Martin has used (I remember asking him last year via this forum or via e-mail, but I never got a reply on that topic) but it seems to me that in the zoomed out view the waveform displays more the RMS representation, rather than the actual peaks. Hence one might feel easily being on the "safe side" while looking at the waveform, although the actual audio may already contain heavy clipping.
(For that reason I have actually switched to another audio editor which allows various and very accurate waveform display modes…)
cheers
1) Use a 24-bit interface to capture your source. Current Macs are all capable of recording 24-bit audio using the line input; it's not exactly professional hi-end quality, but it will perfectly suffice for vinyl digitalizations, or, like in your case, for bootleg live recordings. Use the Audio-MIDI-Setup app to change your default input.
2) Logically then, record to a 24-bit file. You can now leave enough headroom to avoid any clipping while recording.
3) EQ the raw recording first, then edit. No need to change the gain yet.
4) Normalizing is the second to last step, the very last step being the conversion to 16-bit/44.1 kHz for CD burning. (Note that Amadeus Pro utilizes Apple's built-in CoreAudio converter which isn't exactly "pro" either.)
That said, one of the major flaws of Amadeus Pro for precise audio editing is, that the waveform display doesn't precisely represent the actual peaks when zoomed out. I don't know what algorithm Martin has used (I remember asking him last year via this forum or via e-mail, but I never got a reply on that topic) but it seems to me that in the zoomed out view the waveform displays more the RMS representation, rather than the actual peaks. Hence one might feel easily being on the "safe side" while looking at the waveform, although the actual audio may already contain heavy clipping.
(For that reason I have actually switched to another audio editor which allows various and very accurate waveform display modes…)
cheers
-
CDJonah_alt
- Posts: 379
- Joined: Thu Mar 15, 2007 3:57 pm
Beyond Normalizing: Smidgeons of Distortion...
Actually, there is a way to make music seem louder -- it is known as
compression -- try the dynamics plugin (mda) audynamcis (apple). The
adjustments are non-obvious (at least to me) and most of them come from
the original hardware compressors that are used in live music. This is
what is done on commercial (non-classical) CDs.
ALWAYS keep the original file saved. Amadeus has several stages of undo
so you can always go back and try a different setting. Once things are
clipped, there are ways to fix things up, but they are a bit touchy and
not guaranteed
Some people depend on the display to tell them where the peaks are. I
always use the waveform statistics to tell me whether I have gone too
far (and if I have, then do an undo and try again)
Chuck
Gerard Bik wrote:
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compression -- try the dynamics plugin (mda) audynamcis (apple). The
adjustments are non-obvious (at least to me) and most of them come from
the original hardware compressors that are used in live music. This is
what is done on commercial (non-classical) CDs.
ALWAYS keep the original file saved. Amadeus has several stages of undo
so you can always go back and try a different setting. Once things are
clipped, there are ways to fix things up, but they are a bit touchy and
not guaranteed
Some people depend on the display to tell them where the peaks are. I
always use the waveform statistics to tell me whether I have gone too
far (and if I have, then do an undo and try again)
Chuck
Gerard Bik wrote:
_______________________________________________Welcome on board.
Your first question is the one we all have asked at one time or another, hoping to be able to revert distortion. Sadly, it is a one way process. Whatever has been clipped is gone forever.
The iron rule of digital audio is: allow NO distortion, always keep some headroom.
When you want your recordings to be louder, use bigger amplifiers.
Gerard
Hi there-
This'll be my first post on this msg board.
Well, I like Amadeus Pro a lot and I'm using it more than I used Audacity.
My first question is re: is if you can remove distortion after eq'ing a amad track. I will attach a link for those who can help. Just to let you know, I'm eq'ing to the point where the WAV briefly hits the "ceiling" or begins to distort. I used to normalize my songs, but now I'm eq'ing them to the point where the WAVs are louder in volume and I occasionally come across this distortion. I'm sort of new to all of this. I just hope that there is such a filer that removes the distortion.
NOTE: I have posted my recordings (actually live bootlegs) that I go beyond normalizing and there's no distortion--even listening w/headphones.
Would I use one of the filters to remove the distortion? Is that possible? I'm a noob, so please forgive my misunderstanding.
Thanks!
darsh
Sample w/the problem I'm having:
http://el1011.com/Houston/Houston02Bender.m4a
@ 0:41secs
@ 1:05secs
At these times, I can hear the slight distortion.
To hear more of my bootlegs go to: http://el1011.com
_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
clipping
iZotope RX had a heck of an impressive tool called Declipper. You find your clipped music and apply the Declipper, and it's magically repaired.
http://www.izotope.com/products/audio/rx/
http://www.izotope.com/support/videos.asp
That said, data lost with clipping is lost forever, but I'm telling you, this tool makes it sound like nothing was lost at all.
Yes, this tool is expensive compared to tools like Amadeus Pro, and ClickRepair. It can be found waaay cheaper on Amazon, but it's still steep. It is a professional tool, that's easy to use and just stunning in its results.
I'm just a happy customer, and am not affiliated with iZotope, or is it M-Audio...
They also have a free tool called vinyl, that ADDS CLICKS AND POPS AND NOISE to recordings. I'm not so interested in that one.
http://www.izotope.com/products/audio/rx/
http://www.izotope.com/support/videos.asp
That said, data lost with clipping is lost forever, but I'm telling you, this tool makes it sound like nothing was lost at all.
Yes, this tool is expensive compared to tools like Amadeus Pro, and ClickRepair. It can be found waaay cheaper on Amazon, but it's still steep. It is a professional tool, that's easy to use and just stunning in its results.
I'm just a happy customer, and am not affiliated with iZotope, or is it M-Audio...
They also have a free tool called vinyl, that ADDS CLICKS AND POPS AND NOISE to recordings. I'm not so interested in that one.