Mailing ListMailing List   FAQFAQ   SearchSearch   MemberlistMemberlist   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Difficulty with generating markers at silent portions
Goto page 1, 2  Next
 
Post new topic   Reply to topic    www.hairersoft.com Forum Index -> Discussion
View previous topic :: View next topic  
Author Message
asacamano



Joined: 19 Nov 2007
Posts: 3

PostPosted: Mon Nov 19, 2007 6:14 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Hi,

I need to transcribe 10 CDs of lectures, which were recorded and then split into between 50 and 100 tracks each. At the tail end of each track is 2 seconds of genuine, 100% silence, all zeros, no waveform (all waveform stats come back as -inf DB). (The splits were introduced by a cut-rate MP3 recorder, so no better recording exists).

I'm trying to find a easy way to strip that silence and make the lectures understandable. I've been experimenting with generating markers at silent portions, but so far no matter how I tweak the settings I've been unable to get markers to appear. I'd very much appreciate any advice.

Thanks in advance,

Andrew
Back to top
View user's profile Send private message
CDJonah_alt



Joined: 15 Mar 2007
Posts: 378

PostPosted: Mon Nov 19, 2007 7:11 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Try selecting the entire signal -- I created a sound of 30 seconds of
440 and 2 seconds of "generate silence" followed by signal silence
signal. If you don't select the signal nothing happens; if you do
select it, it seems to put a marker in fine.

Chuck

asacamano wrote:
Quote:
Hi,

I need to transcribe 10 CDs of lectures, which were recorded and then split into between 50 and 100 tracks each. At the tail end of each track is 2 seconds of genuine, 100% silence, all zeros, no waveform (all waveform stats come back as -inf DB). (The splits were introduced by a cut-rate MP3 recorder, so no better recording exists).

I'm trying to find a easy way to strip that silence and make the lectures understandable. I've been experimenting with generating markers at silent portions, but so far no matter how I tweak the settings I've been unable to get markers to appear. I'd very much appreciate any advice.

Thanks in advance,

Andrew




_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list


--
Charles D. Jonah CDJonah@anl.gov
630-252-3471
Chemistry Division
Argonne National Laboratory
Argonne, IL 60439



_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message
asacamano



Joined: 19 Nov 2007
Posts: 3

PostPosted: Mon Nov 19, 2007 10:15 pm    Post subject: Reply with quote

Hi Chuck,

Thanks for diving in. I've tried as you suggested, but still no luck.

I selected about 40 seconds of the signal, chose Selection->Generate Markers, and used the following values:

First Marker Name: Silence 01
Color: Black
At silent portions selected
Minimal Length 00'01"000
Silence level: -20dB.

hit OK (I double checked that:-), and no markers were generated.

I've also tried changing the silence level from -5db to -80dB, and the minimal length as low as 00'01"010. Finally, I tried generating markers at even intervals, and that worked just fine. I'd love more suggestions to try.

Thanks,

Andrew
Back to top
View user's profile Send private message
Gerard Bik



Joined: 10 Nov 2006
Posts: 353

PostPosted: Mon Nov 19, 2007 10:29 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Quote:
Hi Chuck,

Thanks for diving in. I've tried as you suggested, but still no luck.

I selected about 40 seconds of the signal, chose Selection->Generate Markers, and used the following values:

First Marker Name: Silence 01
Color: Black
At silent portions selected
Minimal Length 00'01"000
Silence level: -20dB.

hit OK (I double checked that:-), and no markers were generated.

I've also tried changing the silence level from -5db to -80dB, and the minimal length as low as 00'01"010. Finally, I tried generating markers at even intervals, and that worked just fine. I'd love more suggestions to try.

Thanks,

Andrew


Just a shot in the dark:
Have you tried generating markers for the sound parts? The silence parts are what is left.
You might even split according to the generated markers. It will give a folder with all the parts. Sort out the content of that folder and import the sound parts back in a new Amadeus file.
regards

--
______________________ _
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
Back to top
View user's profile Send private message
CDJonah_alt



Joined: 15 Mar 2007
Posts: 378

PostPosted: Mon Nov 19, 2007 10:29 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

I assume the 40 seconds had a spot with a quiet section in it.

I used the default settings of set markers. This time I tried about 1.1
seconds of silence and it found it even with a minimum time of 00'01"500
but not 00'02"000. The statistics on those sections are -inf dB so yes
indeed, it is zero.

Chuck

asacamano wrote:
Quote:
Hi Chuck,

Thanks for diving in. I've tried as you suggested, but still no luck.

I selected about 40 seconds of the signal, chose Selection->Generate Markers, and used the following values:

First Marker Name: Silence 01
Color: Black
At silent portions selected
Minimal Length 00'01"000
Silence level: -20dB.

hit OK (I double checked that:-), and no markers were generated.

I've also tried changing the silence level from -5db to -80dB, and the minimal length as low as 00'01"010. Finally, I tried generating markers at even intervals, and that worked just fine. I'd love more suggestions to try.

Thanks,

Andrew




_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list


--
Charles D. Jonah CDJonah@anl.gov
630-252-3471
Chemistry Division
Argonne National Laboratory
Argonne, IL 60439



_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message
Martin Hairer
Site Admin


Joined: 08 Nov 2006
Posts: 1613

PostPosted: Tue Nov 20, 2007 4:20 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Hi, I can reproduce that bug. Since I don't remember changing anything
in this function, it is likely to have something to do with Leopard
(maybe an unintended side-effect of one of the Leopard-related bug-
fixes). I'll try to release a fix ASAP. Regards,

Martin

HairerSoft
http://www.hairersoft.com/


_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Martin Hairer
Site Admin


Joined: 08 Nov 2006
Posts: 1613

PostPosted: Tue Nov 20, 2007 11:27 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

OK, the version at

http://www.hairersoft.com/Downloads/AmadeusPro.zip

should fix the "Generate Markers" bug. I will probably release it as version 1.2.1 in a couple of weeks (in case there are some more quirks that need fixing). Thanks,

Martin

HairerSoft
http://www.hairersoft.com/


_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list


Last edited by Martin Hairer on Thu Dec 06, 2007 8:28 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Bill



Joined: 29 Nov 2007
Posts: 12

PostPosted: Thu Nov 29, 2007 5:17 am    Post subject: The url listed doesn't work. Reply with quote

I'm experiencing the same problem, using Leopard 10.5.1
Back to top
View user's profile Send private message
CDJonah_alt



Joined: 15 Mar 2007
Posts: 378

PostPosted: Thu Nov 29, 2007 3:19 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Did you get Martin's update in which he thought he fixed the problem?

Chuck

Wearie Willie wrote:
Quote:
I'm experiencing the same problem, using Leopard 10.5.1




_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list


--
Charles D. Jonah CDJonah@anl.gov
630-252-3471
Chemistry Division
Argonne National Laboratory
Argonne, IL 60439



_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message
Bill



Joined: 29 Nov 2007
Posts: 12

PostPosted: Thu Nov 29, 2007 3:39 pm    Post subject: Reply with quote

I read about the update, and tried to download the update, but the url wasn't valid.
_________________
Bill
Back to top
View user's profile Send private message
CDJonah_alt



Joined: 15 Mar 2007
Posts: 378

PostPosted: Thu Nov 29, 2007 3:49 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Just did it and it downloaded fine. Just tried it in 10.4.10 and it
worked fine (my steam-powered G4 won't take 10.5)

copy and paste the link might help

Chuck

Wearie Willie wrote:
Quote:
I read about the update, and tried to download the update, but the url wasn't valid.

------------------------
Wearie Willie




_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list


--
Charles D. Jonah CDJonah@anl.gov
630-252-3471
Chemistry Division
Argonne National Laboratory
Argonne, IL 60439



_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message
Bill



Joined: 29 Nov 2007
Posts: 12

PostPosted: Thu Nov 29, 2007 4:08 pm    Post subject: Reply with quote

I just downloaded Amadeus Pro, and I've been unable to generate markers with it as well. I've changed some of the parameters without success, but don't really know how to make the changes intelligently. I looked for a way to do the markers manually, but haven't found it yet.
_________________
Bill
Back to top
View user's profile Send private message
Bill



Joined: 29 Nov 2007
Posts: 12

PostPosted: Thu Nov 29, 2007 7:24 pm    Post subject: Reply with quote

Reducing the preamp gain on the turntable resulted in a recording that I could generate markers with. Perhaps there's something else I could have done. Thanks to all!
_________________
Bill
Back to top
View user's profile Send private message
Bill



Joined: 29 Nov 2007
Posts: 12

PostPosted: Thu Dec 06, 2007 6:31 pm    Post subject: Reply with quote

I've tried several times to download the AmadeusPro.zip file, but consistently get "URL not found". It "looks" like it has been removed, yet another member was successful recently. Perhaps a revision is in the works.

I am a new user. I would like to know how others are using the markers.

Thanks!

(G5, 10.5.1)
_________________
Bill
Back to top
View user's profile Send private message
CDJonah_alt



Joined: 15 Mar 2007
Posts: 378

PostPosted: Thu Dec 06, 2007 6:56 pm    Post subject: Difficulty with generating markers at silent portions Reply with quote

Copy and paste the url

http://www.hairersoft.com/Downloads/AmadeusPro.zip

(the one above may be good.) Looking at the page source, there may be
something funny that a mail program put in.

As far as markers, I use them when I
1) want to separate a sound file into sections or
2) want to keep a "selection" position for several things

Chuck
Quote:
I've tried several times to download the AmadeusPro.zip file, but
consistently get "URL not found". It "looks" like it has been
removed, yet another member was successful recently. Perhaps a
revision is in the works.

I am a new user. I would like to know how others are using the
markers.

Thanks!

(G5, 10.5.1)

------------------------ Wearie Willie




_______________________________________________ Amadeus forum mailing
list Unsubscribe / change settings at
http://two.pairlist.net/mailman/listinfo/forum_list

--
Charles D. Jonah CDJonah@anl.gov
630-252-3471
Chemistry Division
Argonne National Laboratory
Argonne, IL 60439



_______________________________________________
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.hairersoft.com Forum Index -> Discussion All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group