Puppy Linux Discussion Forum

Flash · Posted: Wed 02 Dec 2009, 09:41 Post subject:

Actually I think mhWaveEdit creates the initial file as digitized voice, the equivalent of a Raw picture file, then converts it to whatever format you tell it to when you Save the file. But yes, you're right that the initial file is huge.

mikeb · Joined: 23 Nov 2006 Posts: 4378

mcewanw · Joined: 16 Aug 2007 Posts: 1482 Location: New Zealand

yes, I once submitted a recording program called wiakrecord to the forum, which included a pause function. That used kill -SIGSTOP and kill -SIGCONT (that part of the program was written in C so that the pause worked virtually instantaneously, but from bash, kill -STOP and kill -CONT <process_id> work fine to pause/continue the arecord ... | lame ... process pipe.

A picture of wiakrecord from its home site is here:

http://wiak.org

I never published the C source code part of wiakrecord though, just the bash and gtkdialog frontend. The C was part of something much bigger I was writing - a control language/protocol for controlling pipelines of processes. I may get back to that some day and release it; family circumstances took me away from it back then. I do have a version of krecspk/wrecspk which includes a pause function written using kill, but it has a few bugs which I've still to iron out. The pause works fine on record, but is not so good on playback - usign madplay (I'll probably write a small C function version of kill just for the pause function). I'll upload the code to the forum in a day or two incase anyone is interested in it, but it would be worth adding pause to your wee record script as a simple solution, I'd say.

Flash

mikeb · Joined: 23 Nov 2006 Posts: 4378

Sometimes i think that between us loyal puppy users we cound come up with some neat applicatins. I'm a bit bogged down in truly unexiting business software but am looking forward to turning my attention towards more interesting subjects.

As far as mhWaveEdit is concerned it seemed to have a habit of leaving large temp files dumped everywhere...audacity is better house trained but I only get reliable performance out of the stable 0.2 series (pet needed).

from my experience bit of juicy scripting can produce wonders...a bit of polishing of my feeble attempt could be just the ticket .....linux runs on command line apps so connecting them with a gui world is worth the effort

mike

mikeb · Joined: 23 Nov 2006 Posts: 4378

PaulBx1 · Joined: 16 Jun 2006 Posts: 2308 Location: Wyoming, USA

I was going to try wavrec but got this error:

Device or resource busy:
Opening audio device /dev/dsp

Interestingly, I could record with that simple "recorder' script. Anyone guess why wavrec doesn't work? (The machine is a Sony VGN-C140G)

I am a rank newb at this. I'm also wondering how to set the appropriate input levels, to get the highest volume without clipping.

mikeb · Joined: 23 Nov 2006 Posts: 4378

/dev/dsp will not work if anything else is using audio..a limitation of oss...alsa does not have this problem whivh is what the simple recorder uses.

As for levels...its trial and error unless you use an application with level meters.(or Spdif)

mike