Re: New to converter.
Re: New to converter.
- Subject: Re: New to converter.
- From: Michael Thornburgh <email@hidden>
- Date: Fri, 11 Jan 2008 21:10:47 -0800
for the record:
1) MTCoreAudio is still supported. see my participation on this
mailing list just in the last week, and a bugfix release recently to
address a Leopard compatibility issue.
2) MTConversionBuffer, as supplied by me, *never* worked on
anything other than Float32 samples. if you had one that produced 16
bit samples in the past, it was divergent from the official version
and made by not-me, and one shouldn't expect future releases by me to
magically not clobber those divergent changes. MTConversionBuffer has
only ever done sample rate conversion.
3) MTCoreAudio doesn't provide any interfaces to AudioFile, so
would not be an appropriate choice for Aurélien Ammeloot's situation
anyway.
by "support", i mean that i'll fix my bugs, make a reasonable effort
to clarify confusion in how to use the APIs i've provided, and where
possible and in general terms, give pointers on correct usage. as a
regular employee of a software company, however, i *can't* do contract
work to write or fix someone else's program, or be exposed to someone
else's proprietary intellectual property. plus i don't really want
to. plus i'm busy that day.
-mike
On Jan 11, 2008, at 3:27 PM, John Draper wrote:
Aurélien Ammeloot wrote:
[...]
Welcome to a very large crowd of people who ALSO wants to do this.
Initially, we used MTCoreAudio for this application, but
apparently the Author is no longer supporting it due to 'Conflict of
Interest' issues, so we are just going to ditch it in our
application as being totally unusable... Which is too bad, because
it does a lot of the work one doesn't really want to do.
In their updated version, we were unable to get the
MTConversionBuffer to spit out 16 bit samples into our sample
buffer. Apparently the Author didn't seem to think that people
would still want to use 8k/sec samples, and he apparently took this
out of the new version as far as I've been able to determine.
None of us can figure out how to use it, and if I had known it
would be this difficult to use MTCoreAudio, I would have made an
effort to use the lower level procedural code, but (sigh) there is
a large lack of examples in this area.
I guess it's time to "cash in" on an instance of support from Apple
soon.
John
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