Path: csiph.com!usenet.pasdenom.info!aioe.org!.POSTED!not-for-mail From: GGolf Newsgroups: comp.lang.java.programmer Subject: Re: Reading sound output in Java Date: Sat, 26 Oct 2013 14:17:04 +0530 Organization: Aioe.org NNTP Server Lines: 69 Message-ID: References: <8146fa5b-403e-47a3-bc4f-cb76a9a2239d@googlegroups.com> <26c9e48e-7ab1-45be-8869-56e2f6b9f9ca@googlegroups.com> <273e95fc-a887-410f-a84e-15be809da895@googlegroups.com> NNTP-Posting-Host: FVGDoGrfP8ZlHbKxjf17QA.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 X-Notice: Filtered by postfilter v. 0.8.2 Xref: csiph.com comp.lang.java.programmer:26430 On 10/26/2013 3:26 AM, Lew wrote: > Joerg Meier wrote: >> Lew wrote: >>> GGolf wrote: >>>> Lew wrote: >>>>> GGolf wrote: >>>>>> Is there a way to read the output that the speakers produce? >> >>>>> Are you talking about using a microphone to record the speaker sound, >>>>> and reading that in a program? >> >>>> Yes, but using software instead of hardware. Basically, the "Stereo Mix" >>>> option that most systems had built-in years ago. >> >>> You're contradicting yourself, or else I'm not getting you. You said "Yes" to the >>> microphone question, but you aren't using hardware. What? >> >>> I have no notion of what you mean by the "Stereo Mix" option. >> >> >> In Windows (and. presumably, other OSs), you can record "What you hear", as >> in, you can record whatever your speakers are playing. This is done on a >> software level, so it works even if you have no speakers or microphones. It >> seems to just intercept and copy the data that gets sent to the speaker >> output. I would guess that's what he want. > > Maybe, but what he asked for was "the output that the speakers produce", not the > signal that is input to the speakers. Sorry for being so vague. I should have said "the signal that is input to the speakers". > > If he wants the signal as sent to the speakers, does he want the actual electrical > signal, decoded and turned into some file format, or does he want a copy of the > MP3 or WAV or whatever generated that signal, or what? > I _think_ either will do. Let me tell you the use case: I want to (i) capture a VOIP conversation (which could be between multiple participants, or just two participants), and (ii) convert that to text using a speech recognizer (using one of the various implementations of JSAPI), and (iii) display that text on screen. Note that this will also mean that I should be able to capture the input to the microphone at the same time. However, if I just get the signal that's input to the speakers, I think that would be a great beginning - I could at least transcribe the incoming side. > You can guess all you want, but absent the *OP* answering the question, it is only a guess. > > As another responder said, the question is vague, and certainly ambiguous. > > So, OP, how about it? Are you going to ask a good question, or give up on getting a > good answer? I hope I've clarified the question at least a little more, based on your useful hints. I also aim to try experimenting with the Java Sound API as suggested by JensJ and others elsethread. > > The technique you use will depend on exactly what you want. >