2

I need to capture an about 8 hour long, continuous audiostream. What software does this best?

The audiostream is made available by the microphone input of the computer. It gets the audio directly from the mixer. It's an analog stereo signal.

My needs:

  • should be able to work continuously for at least 8h without hiccups
  • if there are hiccups, the audio shall not be lost, e.g. by regularly saving parts on the harddisk
  • should run on a low-to-mid-end computer
  • shall not require an SSD

Would be nice:

  • if it saves to some lossless compression format so I save at least a bit of disk space

the computer that i'll be using is an unknown variable, it's most likely going to be one of my friends' laptop.

  • 8 hours on 128 channels with 96 bit and 192 kHz is 281 MB/s and a total of 7.9 TB. That probably won't work on a low end computer without SSD. We should really have some more specs. – Thomas Weller Jun 27 '16 at 21:14
  • @Thomas Weller: it's only stereo, so only two channels (right?) – blackdot Jun 27 '16 at 21:38
6

A tool with a very good reputation is Audacity, it's an open source project.

  • You can choose the input source for recording.
  • The stream will be stored uncompressed in several small files. This will use much disk space, but is an advantage if you want to edit the sound, e.g. to filter noise.
  • After the work is done, you can export the whole project as MP3 or in many other formats, and delete the uncompressed files.
  • OP asked for lossless compression. Is it built-in? – Thomas Weller Jun 27 '16 at 21:14
  • @ThomasWeller - I'm not familiar with all the supported formats, but at least FLAC is offered for exports. – martinstoeckli Jun 27 '16 at 21:54
  • thanks, i tried it out, and it seems to work very well. a one minute reciording session of a stereo input caused about 20Mb of disk space usage, so if I record for 8 hours, that should amount to about 9.6Gb, which is alright. it also saves the recording in 1Mb chunks and can recover them if the program is force-closed via the task manager. i think this will do. – blackdot Jun 29 '16 at 12:08
  • I finally used it, and it worked terrific. was able to record about 12 hours, without any hickups. audacity lets me export to wav and mp3, which is nice. – blackdot Jul 19 '16 at 14:59

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.