output your microphone to a remote computer's speaker

dd if=/dev/dsp | ssh -c arcfour -C username@host dd of=/dev/dsp
This will output the sound from your microphone port to the ssh target computer's speaker port. The sound quality is very bad, so you will hear a lot of hissing.

211
By: morpheus
2009-02-08 10:10:00

1 Alternatives + Submit Alt

What Others Think

how do you... un-output it?
Svish · 484 weeks and 1 day ago
Control-c ?
DavieBaby · 481 weeks and 5 days ago
then cat /bin/bash > /dev/dsp which takes each byte and interprets it as a frequency (number of waves per second, HZ) and the sound driver plays it.
anzan · 475 weeks and 1 day ago
wow, that looks really scary.
unixmonkey3883 · 473 weeks and 3 days ago
That is freaking awesome.
brephophagist · 472 weeks and 3 days ago
Any hint to make this work on Leopard ?
sitaktif · 467 weeks and 6 days ago
Would be sweet if i knew how to make this work for Leopard. Any thoughts?
fastrack20 · 467 weeks and 3 days ago
Leopard does not use /dev/dsp, so there should be some alternatives to it
foremire · 455 weeks and 3 days ago
Has anyone found a solution in 10.5/6?
megrimm · 435 weeks and 4 days ago
Do it trough SSH and output to your own machine and your a spy :P
Meeko · 434 weeks and 6 days ago
Mac OS X uses coreaudio to input and output sound. No UNIX sound device drivers are present, and, in fact, they are frowned upon by Apple as primitive and ugly. Thus, they will probably never be added to Mac OS X :-/.
morpheus · 433 weeks and 6 days ago
Very Good!!!
alwaro78 · 408 weeks and 4 days ago
how did u find it?
deargodzw · 369 weeks and 1 day ago
That's cool!
regding · 341 weeks and 6 days ago
Since /dev/dsp is obsolete & missing from Ubuntu, what was that command to wrap those old programs to use PulseAudio instead?
klepsydra · 319 weeks and 4 days ago
That is awesome. Pure CommandLineFu!
thecamelcoder · 314 weeks and 1 day ago
for ubuntu i use this one "arecord -f dat | ssh -C user@host aplay -f dat" (replace the 'dat' with 'cd' to get 44100hz instead of 48000 quality is very good but not so heavy on the bandwidth)
srulikuk · 260 weeks and 6 days ago
@srulikuk: I like yours better :-)
morpheus · 260 weeks and 6 days ago
@member1936 : Hi, i tried but couldn't do the same between my two Macs with sox. I succeeded on playing a local wav file to distant speakers but when I try default input and output I have this : FAIL formats: can't determine type of `-' Any advice, clue or idea ? Thanks a lot.
nitnok · 201 weeks and 1 day ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: