Rodolfo Medina <rodolfo.med...@gmail.com> writes: > Rodolfo Medina <rodolfo.med...@gmail.com> writes: > >> According to: >> >> http://www.upubuntu.com/2013/05/how-to-record-your-voice-from.html >> >> I record live sound via microphone just doing: >> >> $ sox -t alsa default output.wav >> >> Now I was wondering about the stereo o non-stereo character of such a home >> made recording... I tried to use two microphones together, plugging them >> together into the PC with a small common connection doubber. Can we say the >> result is stereo...? I would doubt... and how to have - if possible - a >> stereo effect with the above basic recording instruments? > > > > > Thanks to all. The problem seems to be solved with such a cable: > > https://www.thomann.de/at/pro_snake_78219_yadapterkabel.htm
Well, actually better this one: http://hosatech.com/product/ymm-261/ > as suggested by deloptes and other listers. The cable consists in two female > 3.5mm terminations, each of them mono, and a male 3.5mm stereo. One mic at > one female end, the other one at the other female end, and the male end > plugged into the microphone input of my netbook. All this seems to produce a > perfect stereo effect: the two channels sound to be very well separated. > > I'll be using the above simple connection system to live piano recording: mic > 1 on the basses (left), mic 2 on the high (right). > > My next step is trying to add human voice, say in the middle. I'll see if > this is possible by slightly complicating the above solution, without preamp > or mixer or multi-channel audio interface. I'll be posting here if the > attempt succeeds. For human voice, I bought a USB audio card and plugged a third microphone into it. So now I have: mic1 for piano basses; |__________ plugged together into the mic2 for piano highs; | above Y cable mic3 for voice -> -> -> -> plugged into the USB dongle. Then I do: $ sox -t alsa default piano.wav and, at the same time, on another xterm session, $ sox -t alsa wh:2,0 voice.wav where wh:2,0 is the USB device (do: `arecord -l' first). This way I get two audio files: piano.wav and voice.wav. The first one is stereo and the second is mono. In the end I merge the two together with Audacity. By default, Audacity puts the mono file just in the middle between left and right channel; but, if you like, you can have it weight more left or more right, in the percentage you want. I must say that the result is acceptable, and more... Thanks, Rodolfo