vivamax

can anyone suggest a quick way to add markers to an audio recording. preferably, live during recording if not by editing the recorded file.

adding-markersflag-to-audio-recordings

On 17-mai-07, at 19:51, assegid kidane wrote:

> can anyone suggest a quick way to add markers to an audio recording. 

> preferably, live during recording if not by editing the recorded file.

I'm afraid there are no way to add markers in a soundfile thru Max/MSP 

yet. You could record the markers positions in a [coll]. I think I once 

saw in a sound editor on MacOSX the possibility to import a text file 

containing markers positions, but don't remember which one it was 

But you can read markers in Max/MSP with [sfmarkers~] ;-)

I sometimes think I should add this feature to this object, but nobody 

showed interested in this so far, and I don't like the idea that in a 

realtime environment, you have to wait many seconds until the soundfile 

with the added markers is saved. It should rather be a feature of 

[sfrecord~] (but I'm afraid the problem of saving the file would be the 

same: you now how many markers you have only once you finished the 

>
> can anyone suggest a quick way to add markers to an audio recording. 
> preferably, live during recording if not by editing the recorded file.

I'm afraid there are no way to add markers in a soundfile thru Max/MSP 
yet. You could record the markers positions in a [coll]. I think I once 
saw in a sound editor on MacOSX the possibility to import a text file 
containing markers positions, but don't remember which one it was 
(Amadeus maybe...)

But you can read markers in Max/MSP with [sfmarkers~] ;-)
I sometimes think I should add this feature to this object, but nobody 
showed interested in this so far, and I don't like the idea that in a 
realtime environment, you have to wait many seconds until the soundfile 
with the added markers is saved. It should rather be a feature of 
[sfrecord~] (but I'm afraid the problem of saving the file would be the 
same: you now how many markers you have only once you finished the 
recording)

The way I've done this is to record pointers into a coll and store it 

with the soundfile. When I load a soundfile, I also load the coll, 

and use that to determine the playback segments. I'm just about to 

make a conference call, but I can either give you a bit more 

explanation, or try and separate out that part of my patch if you 

On 18 May 2007, at 10:17, Patrick Delges wrote:

> On 17-mai-07, at 19:51, assegid kidane wrote:

>> can anyone suggest a quick way to add markers to an audio 

>> recording. preferably, live during recording if not by editing the 

> I'm afraid there are no way to add markers in a soundfile thru Max/ 

> MSP yet. You could record the markers positions in a [coll]. I 

> think I once saw in a sound editor on MacOSX the possibility to 

> import a text file containing markers positions, but don't remember 

> But you can read markers in Max/MSP with [sfmarkers~] ;-)

> I sometimes think I should add this feature to this object, but 

> nobody showed interested in this so far, and I don't like the idea 

> that in a realtime environment, you have to wait many seconds until 

> the soundfile with the added markers is saved. It should rather be 

> a feature of [sfrecord~] (but I'm afraid the problem of saving the 

> file would be the same: you now how many markers you have only once 

The way I've done this is to record pointers into a coll and store it  
with the soundfile. When I load a soundfile, I also load the coll,  
and use that to determine the playback segments. I'm just about to  
make a conference call, but I can either give you a bit more  
explanation, or try and separate out that part of my patch if you  
need more help.

>
> On 17-mai-07, at 19:51, assegid kidane wrote:
>
>>
>> can anyone suggest a quick way to add markers to an audio  
>> recording. preferably, live during recording if not by editing the  
>> recorded file.
>
> I'm afraid there are no way to add markers in a soundfile thru Max/ 
> MSP yet. You could record the markers positions in a [coll]. I  
> think I once saw in a sound editor on MacOSX the possibility to  
> import a text file containing markers positions, but don't remember  
> which one it was (Amadeus maybe...)
>
> But you can read markers in Max/MSP with [sfmarkers~] ;-)
> I sometimes think I should add this feature to this object, but  
> nobody showed interested in this so far, and I don't like the idea  
> that in a realtime environment, you have to wait many seconds until  
> the soundfile with the added markers is saved. It should rather be  
> a feature of [sfrecord~] (but I'm afraid the problem of saving the  
> file would be the same: you now how many markers you have only once  
> you finished the recording)
>
> p
>


Thanks Patrick. The sfmarkers~ object is a great idea. But my copy of Max does not have sfmarkers~ :-) I was very excited for a moment though. I am currently using the coll object to create a separate marker file. If you know of an application that can combine the text marker file with the sound track, please let me know. Both mac and PC.

Thank you for your Help David. I am currently working with the coll object to accomplish this. Is there a way to get the current time including fractions of a second (millisecond or 1/100th of a second)in max? The date function gives time in seconds resolution. The ticks outlet is in 1/60th secs but it is relative to system start up and I am wondering if it will match the time stamping of the sound recording precisely. cpuclock outputs in milliseconds but it counts relative to max startup. How do you precisely match the sound file with the marker file?

Thank you for your Help David. I am currently working with the coll object to accomplish this.  Is there a way to get the current time including fractions of a second (millisecond or 1/100th of a second)in max? The date function gives time in seconds resolution. The ticks outlet is in 1/60th secs but it is relative to system start up and I am wondering if it will match the time stamping of the sound recording precisely. cpuclock outputs in milliseconds but it counts relative to max startup. How do you precisely match the sound file with the marker file?


On 21 mai 07, at 01:20, assegid kidane wrote:

> Thanks Patrick. The sfmarkers~ object is a great idea. But my copy of 

There is actually only a Mac version. f.e.?? ;-)

> I was very excited for a moment though. I am currently using the coll 

> object to create a separate marker file. If you know of an application 

> that can combine the text marker file with the sound track, please let 

I have no time to check now, but it is possible to import markers via 

AmadeusII (Mac), although I don't know if they will be stored as 

markers in the file. There is a demo of Amadeus, so you can check 

> Is there a way to get the current time including fractions of a second 

> (millisecond or 1/100th of a second)in max?

In [sfplay~], there is an optional outlet (even 2 outlets) that gives 

In [sfrecord~], the outlet is not optional, it's always there.

Centre de Recherches et de Formation Musicales de Wallonie asbl

> Thanks Patrick. The sfmarkers~ object is a great idea. But my copy of 
> Max does not have sfmarkers~ :-)

See www.maxobjects.com
There is actually only a Mac version. f.e.?? ;-)

> I was very excited for a moment though. I am currently using the coll 
> object to create a separate marker file. If you know of an application 
> that can combine the text marker file with the sound track, please let 
> me know. Both mac and PC.

I have no time to check now, but it is possible to import markers via 
AmadeusII (Mac), although I don't know if they will be stored as 
markers in the file. There is a demo of Amadeus, so you can check 
yourself ;-)

> Is there a way to get the current time including fractions of a second 
> (millisecond or 1/100th of a second)in max?

In [sfplay~], there is an optional outlet (even 2 outlets) that gives 
you accurate positions.
In [sfrecord~], the outlet is not optional, it's always there.
Check the help files!

_____________________________
Patrick Delges

Centre de Recherches et de Formation Musicales de Wallonie asbl
http://users.skynet.be/crfmw/max


here's the timer part of my recorder patch. I match the sound file 

and marker file by giving them the same name during the saving 

process. If you're not sure how that works, I could send or upload 

the "compile buffer" part of my patch, but it's too large to post as 

When the paired files are reloaded, I use the marker coll to send 

play from/to instructions to my playback module (which uses 

[play~ ]). What I do is to select the segment I want to play by 

number (ie segment 1, 2, 3, etc) and use those numbers to recall the 

miilisecond positions within the file from the coll. (Segment 1 is 

So - send segment number to coll; that retrieves play start/stop 

Does that make sense? The functionality of all this is distributed 

across several different subpatchers, so it's not really possible for 

me to send something which illustrates the whole process in a single 

here's the timer part of my recorder patch. I match the sound file  
and marker file by giving them the same name during the saving  
process. If you're not sure how that works, I could send or upload  
the "compile buffer" part of my patch, but it's too large to post as  
text.
When the paired files are reloaded, I use the marker coll to send  
play from/to instructions to my playback module (which uses  
[play~  ]). What I do is to select the segment I want to play by  
number (ie segment 1, 2, 3, etc) and use those numbers to recall the  
miilisecond positions within the file from the coll. (Segment 1 is  
slot 1 in the coll etc).
So  - send segment number to coll; that retrieves play start/stop  
positions; send those to play~ .
Does that make sense? The functionality of all this is distributed  
across several different subpatchers, so it's not really possible for  
me to send something which illustrates the whole process in a single  
patch.

adding markers/flag to audio recordings