anyone used LADSPA - VST bridge with ecasound?

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Creating mp3 teasers?

Hello all, I have a quick question about using ecasound to batch process a bunch of mp3s.  Basically, I'm
trying to create 15-20 second teasers of mp3s of various projects I have worked in.  In my dream world I would
script something together that would take a directory of mp3 files and crop them down to the period between
0:15 and 0:35 and it would fade in and fade out at the edges, then save these samples to a subdirectory.

Am I dreaming?  Is this something I can do with the mighty CLI power of ecasound?

Thanks,

Shane

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Re: [patch]: ecasound.el: Update

Hi,

On Mon, 17 Dec 2007, Mario Lang wrote:

> I've received a patch to ecasound.el by one of its users (David O'Toole).
> This basically adds a few more ECI command definitions that
> were missing.

thanks, patch applied and pushed to public git tree [1].

Let's see if we could get a new release (2.4.7) out within the next month 
or so. I have some pending work (the tone generator input) I still would 
like to finish, but let's see...

[1] http://ecasound.seul.org/ecasound.git

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Re: unable to load the same ecs file

Hi,

On Thu, 27 Dec 2007, Dubphil wrote:

> ecasound > cs-load master.ecs
> ecasound > start
>
> it works great, all chain setupo are activated, and when I modify
> master.ecs in another terminal, when I come back to ecasound and if I do
> cs-reload witht the modified master.ecs file I have the warning I paste
> previously.

hmm, now I'm confused. I actually have 'cs-reload' in my TODO list, but I 
AFAIK it's not implemented yet (I had to double-check that it really is 
not there :)). So are you sure you used cs-reload?

But, but, this is definitely a valid problem that needs addressing. 
Ecasound already provides 'cs-edit', but 'cs-reload' might be more useful. 
For now, you need to either 1) cs-remove the existing setup before running 
'cs-load master.ecs' again, or 2) 'cs-disconnect' and rename with 
'cs-option -n new_name2' and the load again.

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Re: scripting plus jack

Hi,

sorry for the _very_ late response.

On Mon, 24 Sep 2007, Julien Claassen wrote:

>  I narrowed down my problem. If I started:
> ecasound --daemon &
>  and then loaded a chainsetup via cs-load and want to use jack_connect it
> tells me:
> cannot connect ports.

Communication towards JACK is activated only when the engine is launched. 
You can do this with "engine-launch". So in other words:

connecting a chainsetup (cs-connect)
   -> reserves resources (opens files, soundcards, etc)
launching the engine
   -> starts the real-time (potentially SCHED_FIFO) thread that
      "executes" a chainsetup

The reverse applies for 'cs-disconnect' and 'engine-halt'.

This is somewhat untuitive, but is the only way to comply with JACK's 
requirements for clients: 1) client can make connections only when it's
activated, and 2) client must be ready for processing callbacks to be
activated.

PS I'll update the ecasound-iam(1) man page with this info
    for the next release.

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Re: scripting plus jack

Hi Kai!
  I knew about the "engine-launch' command. But it still wouldn't work 
properly. I'll rewrite the script, because it's gone by now and see where it 
fails exactly.
  Kindest regards
        Julien

--------
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======== FIND MY WEB-PROJECT AT: ========
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the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
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Re: Creating mp3 teasers?

I thought this would be a good one-day project, so I created this (GUI) 
program that will do what you need. I don't have an MP3 helper installed 
for ecasound, but it has been fairly tested with WAV files. Please let 
me know if it worked with MP3s.

Simply run in a shell... /PathTo/SoundClips.tcl

- Set the perimeters the way you want them
- Click 'Audition Clip' and choose an audio file (for previewing the new 
settings)
- When it sounds right, click "Create Clip" and choose the same file

'Clipped Files' will have the same name as the original and will be put 
in a sub directory in the same directory as the original file. 'Clipped' 
files will be overwritten any time you decide to clip a song you 
previously clipped.

It _will_ allow you to input inappropriate numbers. And even with 
appropriate perimeters, there's no guarantees. I know it worked for me 
(with slight variations between different sound cards and files with 
different sample rates/bit depths). It's unlikely you will compromise 
any data or that it will cause any problems, but I give you the usual 
freeware warnings.

Let me know how it worked
Rocco

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Re: Creating mp3 teasers?

Linux Media wrote:
> I thought this would be a good one-day project, so I created this (GUI) 
> program that will do what you need.
> 
> Simply run in a shell... /PathTo/SoundClips.tcl

I forgot to mention that you need tcl/tk installed. I wrote it using 
version 8.4.13. But it will most likely work with earlier versions.

Rocco

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Chain setup made easier

Hi Eca-Lovers and Eca-Tamers,

I've been working on tools to generate my Ecasound
chain setups. I just finished rewriting the core
in OO style. 

I'd like to show you how easy it can be to 
write a chain setup.

Hope you find it interesting. I'll be releasing
these tools sometime soon as perl modules.

--Joel

-------------------- conditions -------------------------

	- current directory contains: 

		piano.wav sax_1.wav, sax_2.wav,  sax_4.wav

	- all chain templates (including mixdown) are active

-------------------- signal flow -------------------------

File --(3)-->loop,3--(J3)-->loop,111 |
Dev  --(4)-->loop,4--(J4)-->loop,111 |--(Mix_link)-->loop,222
Dev  --(5)-->loop,5--(J5)-->loop,111 |

loop,222--+----(Mixer_out)--> Dev
          |_____(Mixdown)---> File

Dev --(R4)--> file
Dev --(R5)--> file

The numbers in parentheses show the chain names.
An optimization pass will eliminate loops where the chain
needs to feed only one output.

Vol/pan/effects for individual tracks will be applied to 
the numbered chains and also to the mixer chain Mix_link.

-------------------- code -------------------------

# initialize

use UI;      # temporary name for the module suite
package UI;
prepare;

my $sax = UI::Track->new( name => 'sax');

$sax->set(rw => 'MON');

my $piano  = UI::Track->new( name => 'piano', ch_r => 2 );

my $vocal = UI::Track->new( name => 'vocal', ch_r => 3);

$master_bus->apply; 
$tracker_bus->apply; # Apply templates to tracks to generate chains 

		# These buses are created by default. 
		# Any number of buses can be created.

write_chains;

---------------------- output ------------------------

# ecasound chainsetup file

# general

-B auto

# audio inputs

-a:3 -i:./sax_4.wav
-a:4,5,R4,R5 -f:s32_le,12,44100 -i:alsa,ice1712
-a:J3 -i:loop,3
-a:J4 -i:loop,4
-a:J5 -i:loop,5
-a:Mixer_out,Mixdown -i:loop,222

# post-input processing

-a:3  -erc:1,2
-a:4  -erc:1,2 -erc:2,1
-a:5  -erc:1,2 -erc:7,1

# pre-output processing

# audio outputs

-a:3 -o:loop,3
-a:4 -o:loop,4
-a:5 -o:loop,5
-a:J3,J4,J5 -o:loop,111
-a:Mixdown -f:s16_le,2,44100,i -o:./mix_1.wav
-a:Mixer_out -f:s16_le,2,44100,i -o:alsa,default
-a:R4 -f:s16_le,1,44100 -o:./piano_5.wav
-a:R5 -f:s16_le,1,44100 -o:./vocal_5.wav
--

-- 
Joel Roth

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ecasound fades with lot of files

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