Another question on capturing audio played back by a software
Another question on capturing audio played back by a software
- Subject: Another question on capturing audio played back by a software
- From: "Vitaly" <email@hidden>
- Date: Fri, 3 Dec 2010 13:46:34 +0200
Another question on capturing audio played back by a software.
Good day.
I consider ability to capture audio played back by a program on a
Mac OS X. Looking at software with similar functionallity and
correspondent posts on the subject, it looks like there is 3 "way" to
implement such functionality:
1) The way, when capturing program must start a player to be
captured. Examples of prorams, capable of performing such capture
are Audio Hijack Pro, Macsome Audio Recorder.
2) Implementing a virtual device, to which a playback program must
pass audio to be captured. Examples of such software are
SoundFlower, JACK.
3) The way, that is similar to captuting through kernel-mode filter
driver on Windows: there are no virtual devices; there is no need
to start playback program by the capturer. Examples of software
implementing such capturing are Audio Hijack Pro, WireTap Studio.
I primary interested in implementing the "way" 3. That is capturing
must looks transparently (without virtual devices) and without
requirements on launching a player. A user considered to be work
without need to change system or software preferences. Captured
audio required to be sent to a user mode application.
Could you suggest a starting point for implementing capturing using
the "way" 3? Is there are any examples available?
Also it is interested, how the "way" 1 is implemented technically?
Thanks.
Vitaly.
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