audioloop, loop, and select
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audioloop, loop, and select
by Jeremy Hughes-4
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Hi all,
I've run into another problem. I need to loop a sample within a set number of frames. afaik this is what I'm supposed to do: $ ecasound -a:0 -i:audioloop,chirp.wav -o:loop,x -a:1 -i:select,0sa,200000sa,loop,x -o:alsa but this is what I get: (eca-chainsetup) NOTE: using existing audio parameters -f:s16_le,1,44100 for ... object 'audioloop (tried to open with -f:s16_le,2,44100). (eca-chainsetup) Opening input "audioloop", mode "read". Format: s16_le, ... channels 1, srate 44100, interleaved (locked params). ERROR: Connecting chainsetup failed: "Enabling chainsetup: AUDIOIO-SEQBASE: ... Couldn't open child object." I have tried specifying "-f:32,1" for both chains, to no avail. Thanks for your help so far, Jeremy ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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Re: audioloop, loop, and select
by Joel Roth-2
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Hello,
On Mon, Jun 29, 2009 at 12:37:52PM +1200, Jeremy Hughes wrote: > Hi all, > > I've run into another problem. I need to loop a sample within a set > number of frames. > afaik this is what I'm supposed to do: > > $ ecasound -a:0 -i:audioloop,chirp.wav -o:loop,x -a:1 > -i:select,0sa,200000sa,loop,x -o:alsa > > but this is what I get: > > (eca-chainsetup) NOTE: using existing audio parameters > -f:s16_le,1,44100 for > ... object 'audioloop (tried to open with -f:s16_le,2,44100). > (eca-chainsetup) Opening input "audioloop", mode "read". Format: s16_le, > ... channels 1, srate 44100, interleaved (locked params). > ERROR: Connecting chainsetup failed: "Enabling chainsetup: AUDIOIO-SEQBASE: > ... Couldn't open child object." > > I have tried specifying "-f:32,1" for both chains, to no avail. You could try putting the select directly on the input, instead of on the loop device: $ ecasound -a:0 -i:audioloop,select,0sa,200000sa,chirp.wav -o:loop,x -a:1 -i:loop,x -o:alsa I haven't tried this myself.... > Thanks for your help so far, > > Jeremy > > ------------------------------------------------------------------------------ > _______________________________________________ > Ecasound-list mailing list > Ecasound-list@... > https://lists.sourceforge.net/lists/listinfo/ecasound-list -- Joel Roth ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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Re: audioloop, loop, and select
by Jeremy Hughes-4
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On Mon, Jun 29, 2009 at 3:20 PM, Joel Roth<joelz@...> wrote:
> Hello, > > You could try putting the select directly on the input, instead > of on the loop device: > > $ ecasound -a:0 -i:audioloop,select,0sa,200000sa,chirp.wav -o:loop,x -a:1 > -i:loop,x -o:alsa > > I haven't tried this myself.... Famous last words :-) The above endlessly loops the first 200000 samples of input. I want the converse: loop the input until 200000 samples are reached. Jeremy ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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Re: audioloop, loop, and select
by Joel Roth-2
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On Mon, Jun 29, 2009 at 03:44:25PM +1200, Jeremy Hughes wrote:
> On Mon, Jun 29, 2009 at 3:20 PM, Joel Roth<joelz@...> wrote: > > Hello, > > > > You could try putting the select directly on the input, instead > > of on the loop device: > > > > $ ecasound -a:0 -i:audioloop,select,0sa,200000sa,chirp.wav -o:loop,x -a:1 > > -i:loop,x -o:alsa > > > > I haven't tried this myself.... > > Famous last words :-) Not my last! > The above endlessly loops the first 200000 samples of input. I want the > converse: loop the input until 200000 samples are reached. Hmm. I had to try: ecasound -i:,select,0,2,audioloop,something.wav Which isn't any better. The following works provided you specify the processing time in seconds. ecasound -i:audioloop,something.wav -t some_seconds > Jeremy -- Joel Roth ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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Re: audioloop, loop, and select
by Jeremy Hughes-4
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On Mon, Jun 29, 2009 at 5:36 PM, Joel Roth<joelz@...> wrote:
> On Mon, Jun 29, 2009 at 03:44:25PM +1200, Jeremy Hughes wrote: >> On Mon, Jun 29, 2009 at 3:20 PM, Joel Roth<joelz@...> wrote: >> > Hello, >> > >> > You could try putting the select directly on the input, instead >> > of on the loop device: >> > >> > $ ecasound -a:0 -i:audioloop,select,0sa,200000sa,chirp.wav -o:loop,x -a:1 >> > -i:loop,x -o:alsa >> > >> > I haven't tried this myself.... >> >> Famous last words :-) > > Not my last! > >> The above endlessly loops the first 200000 samples of input. I want the >> converse: loop the input until 200000 samples are reached. > > Hmm. I had to try: > > ecasound -i:,select,0,2,audioloop,something.wav > > Which isn't any better. The following works provided you > specify the processing time in seconds. > > ecasound -i:audioloop,something.wav -t some_seconds Righto. Wrote a small program to get the number of frames, divide by sample rate to get seconds, and bingo! Cheers, Jeremy ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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Re: audioloop, loop, and select
by Joel Roth-2
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On Mon, Jun 29, 2009 at 05:57:23PM +1200, Jeremy Hughes wrote:
> > Joel Roth wrote: > The following works provided you > > specify the processing time in seconds. > > > > ecasound -i:audioloop,something.wav -t some_seconds > > Righto. Wrote a small program to get the number of frames, divide by > sample rate to get seconds, and bingo! Yes, it's the "bingo!" that keeps us coming back. :-) Joel > Cheers, > > Jeremy -- Joel Roth ------------------------------------------------------------------------------ _______________________________________________ Ecasound-list mailing list Ecasound-list@... https://lists.sourceforge.net/lists/listinfo/ecasound-list |
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