Yes, but it is very ugly to change rate in config file for every song I play. 2013/1/17 Patrick Shirkey <pshirkey@xxxxxxxxxxxxxxxxx>: > > On Fri, January 18, 2013 7:51 am, Stefan Stefanov wrote: >> Hi Julien >> >> In process of accomplish my task with EQ I discover a problem playing >> music with ecasound. >> >> If I execute: ecasound -i test.wav -o >> jack_multi,system:playback_1,system:playback_2 >> then I get this error: >> "ERROR: Connecting chainsetup failed: "All audio objects must have a >> common >> ... sampling rate; sampling rate of audio object "jack_multi" differs from >> ... engine rate (48000 <-> 44100); unable to continue." >> " >> I run jack like this: /usr/bin/jackd -P 85 -d alsa -P hw:2,0 -n 3 -p 256 >> >> (test.wav format is 16,2,44100) >> > > Jack is probably started with a sample rate of 48000. > > You can of course start jack with a sample rate of 44100 or you can tell > ecasound to resample from 44100 to 48000. > > Probably easier to tell jack to use 44100 though. > > > > >> Regards >> Stefan >> >> >> 2013/1/17 Julien Claassen <julien@xxxxxxxxxxx>: >>> Hello Stefan! >>> Ecasound's basic concept is chains. A chain looks like this: >>> input -> possible processing options -> output >>> So you can use jack intput and output: >>> ecasound -f:16,2,44100 -i jack_multi,mpd:out1,mpd:out2 -o \ >>> jack_multi,system:playback_1,system:playback_2 >>> At the end of this line you can add effects. For example a filter. You >>> can >>> use LADSPA unique IDs or the labels. I prefer IDs, since I always forget >>> upper and lower case letters. So the GLAME Highpass IIR filter (label: >>> highpass_iir and ID 1890). It has two parameter cutoff and poles/stages. >>> You >>> can find that out with analyseplugin from the basic ladspa suite or look >>> it >>> up in your favourite graphic ladspa host. So at the end of the ecasound >>> line >>> we have: >>> -eli:1890,50,2 >>> or >>> -el:highpass_iir,50,2 >>> Adds a highpass filter with 50Hz cutoff frequency and two >>> stages/poles. >>> My favourite EQ is still Fons Adriaenson's 4-band parametric EQ >>> (1970). I >>> think the package is called 4-band parametric filter (or just filter). >>> It >>> has a lot of options, you can try them in your favourite graphical >>> application first and then copy all the values, that you found. probably >>> easiest for you. >>> If you need more help ask. - one last note: the -f:16,2,44100 is the >>> ecasound audio formation option, see the manpage. It's >>> bitrate,number-of-channels,samplerate. So this is CD-quality. Adapt to >>> your >>> needs. >>> Warmly yours >>> Julien >>> >>> ---------------------------------------- >>> http://juliencoder.de/nama/music.html >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx >> http://lists.linuxaudio.org/listinfo/linux-audio-user >> > > > -- > Patrick Shirkey > Boost Hardware Ltd > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
