8 Jan
2019
8 Jan
'19
7:58 p.m.
Dear:
I want to read the time code in the audio port of windows system.
The time code was generated by a German time code device named TENTACLE SYNC .
What should I do?
9 Jan
9 Jan
4:10 a.m.
I guess it depends what you want to do with the timecode.
I'm not an Jack expert, but I have written quite a bit of timecode handling software.
What are you trying to achieve?
Phil From: 1213729945 <1213729945(a)qq.com>
To: jack-devel <jack-devel(a)jackaudio.org>
Sent: Wednesday, 9 January 2019, 2:58
Subject: [Jack-Devel] windows
Dear:
I want to read the time code in the audio port of windows system.The time code was
generated by a German time code device named TENTACLE SYNC .
What should I do?_______________________________________________
Jack-Devel mailing list
Jack-Devel(a)lists.jackaudio.org
http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
4:20 a.m.
New subject: [Jack-Devel] 回复： windows
I want to read the time code from the audio pin on windows system which is connected with
the timecode generator TENTACLE, and then get the same timecode with TENTACLE, after that
we write the timecode in our data file. How can we get the timecode via Jack ?
------------------ 原始邮件 ------------------
发件人: "Phil Rhodes"<phil_rhodes(a)rocketmail.com>ail.com>;
发送时间: 2019年1月9日(星期三) 晚上7:10
收件人: "1213729945"<1213729945(a)qq.com>29945@qq.com>;
"jack-devel"<jack-devel(a)jackaudio.org>ackaudio.org>;
主题: Re: [Jack-Devel] windows
I guess it depends what you want to do with the timecode.
I'm not an Jack expert, but I have written quite a bit of timecode handling
software.
What are you trying to achieve?
Phil
From: 1213729945 <1213729945(a)qq.com>
To: jack-devel <jack-devel(a)jackaudio.org>
Sent: Wednesday, 9 January 2019, 2:58
Subject: [Jack-Devel] windows
Dear:
I want to read the time code in the audio port of windows system.
The time code was generated by a German time code device named TENTACLE SYNC .
What should I do?
_______________________________________________
Jack-Devel mailing list
Jack-Devel(a)lists.jackaudio.org
http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
8:19 a.m.
New subject: [Jack-Devel] »Ø¸´£º windows
On Wed, January 9, 2019 5:20 am, 1213729945 wrote:
I want to read the time code from the audio pin on
windows system which is
connected with the timecode generator TENTACLE
Why do you want to use jack? There should be plenty of examples of how to
read audio data from a Windows audio device.
How can we get the timecode via Jack ?
You can only get the audio data via jack, you would still have to derive
the timecode from the audio.
Robin, aka X42, wrote a library for dealing with timecode, as well as
command line utilities for extracting timecode from audio files.
https://github.com/x42
https://github.com/x42/libltc
https://github.com/x42/ltc-tools
They work on posix style systems like linux, you could probably get them
running on Windows with cygwin or mingw or similar. Or just run linux
instead of Windows, a lot of distributions have those tools ready to use.
--
Chris Caudle
8:32 a.m.
New subject: [Jack-Devel] »Ø¸´£º windows
On 1/9/19 4:19 PM, Chris Caudle wrote:
On Wed, January 9, 2019 5:20 am, 1213729945 wrote:
libltc is known to work on windows with MSVC. There is an example (ASIO
| Portaudio, MSVC..) at
https://github.com/x42/libltc/issues/18#issuecomment-188129134 However,
that has nothing to do with jack and I do not know much about it myself.
I also don't know if TENTACLE uses LTC to begin with.
ciao,
robin
I want to read the time code from the audio pin
on windows system which is
connected with the timecode generator TENTACLE
Why do you want to use jack? There should be plenty of examples of how to
read audio data from a Windows audio device.
How can we get the timecode via Jack ?
You can only get the audio data via jack, you would still have to derive
the timecode from the audio.
Robin, aka X42, wrote a library for dealing with timecode, as well as
command line utilities for extracting timecode from audio files.
https://github.com/x42
https://github.com/x42/libltc
https://github.com/x42/ltc-tools
They work on posix style systems like linux, you could probably get them
running on Windows with cygwin or mingw or similar. Or just run linux
instead of Windows, a lot of distributions have those tools ready to use.
9:27 a.m.
New subject: [Jack-Devel] »Ã¸´£º windows
On Wed, January 9, 2019 9:32 am, Robin Gareus wrote:
libltc is known to work on windows with MSVC.
That is a cool feature, I guess.
that has nothing to do with jack
Right, I don't think the original poster has clarified why jackd use is
desired rather than native OS audio.
I also don't know if TENTACLE uses LTC to begin
with.
That I can answer:
"Uses LTC Timecode according to SMPTE-12M Standard"
Last year sometime I helped someone check recordings made with a digital
camera and a Tentacle device to generate timecode, ltc-tools could decode
it with no problem, and ardour imported to a video timeline mostly with no
problems (there were some issues with the variable frame rate video
encoding used by the camera by default, but I don't think that is
pertinent here).
--
Chris Caudle
10:08 a.m.
New subject: [Jack-Devel] »Ø¸´£º windows
On Wed, Jan 9, 2019 at 4:19 PM Chris Caudle <chris(a)chriscaudle.org> wrote:
On Wed, January 9, 2019 5:20 am, 1213729945 wrote:
Why not use Jack? It's a simple API that works excellently on Windows.
I want to read the time code from the audio pin
on windows system which is
connected with the timecode generator TENTACLE
Why do you want to use jack? There should be plenty of examples of how to
read audio data from a Windows audio device.
12:48 p.m.
New subject: [Jack-Devel] »Ã¸´£º windows
On Wed, January 9, 2019 11:00 am, Kjetil Matheussen wrote:
Why not use Jack? It's a simple API that works
excellently on Windows.
Yes, that could be a good reason, cross-platform operation is another,
application to application routing is another. It would just be good to
get confirmation from the original poster about requirements, and
hopefully make sure there are no misconceptions about the capabilities of
jackd.
--
Chris Caudle
7:31 p.m.
New subject: [Jack-Devel] 回复： »Ø¸´£º windows
Can you give me a example that can read the time code from the audio pin on windows
system.
------------------ 原始邮件 ------------------
发件人: "Kjetil Matheussen"<k.s.matheussen(a)gmail.com>ail.com>;
发送时间: 2019年1月10日(星期四) 凌晨1:00
收件人: "Chris Caudle"<chris(a)chriscaudle.org>dle.org>;
抄送: "1213729945"<1213729945(a)qq.com>29945@qq.com>;
"jack-devel"<jack-devel(a)jackaudio.org>ackaudio.org>;
主题: Re: [Jack-Devel] »Ø¸´£º
windows
On Wed, Jan 9, 2019 at 4:19 PM Chris Caudle <chris(a)chriscaudle.org> wrote:
On Wed, January 9, 2019 5:20 am, 1213729945 wrote:
Why not use Jack? It's a simple API that works excellently on Windows.
I want to read the time code from the audio pin
on windows system which is
connected with the timecode generator TENTACLE
Why do you want to use jack? There should be plenty of examples of how to
read audio data from a Windows audio device.
8:15 p.m.
New subject: [Jack-Devel] 回复： »Ø¸´£º windows
On 1/10/19 3:31 AM, 1213729945 wrote:
Can you give me a example that can read the time code
from the audio pin on windows system.
I cannot. But there is
https://github.com/loupus/LtcWaveAudio
that generates timecode, writes to an audio output. Parsing timecode
should be easy to do: either with jack or based on above example.
Also https://github.com/x42/ltc-tools can do that with jack on windows.
Both example project are linked from the documentation of the library at
http://x42.github.io/libltc/ -- If you plan to inter-operate with the
TENTACLE sync devices I highly recommend to read the documentation and
also familiarize yourself with pro audio software concepts.
ciao,
robin
7:34 p.m.
New subject: [Jack-Devel] 回复： windows
Can you give me a example?
Thank you very much.
------------------ Original ------------------
From: "Chris Caudle"<chris(a)chriscaudle.org>dle.org>;
Date: 2019年1月9日(星期三) 晚上11:19
To: "1213729945"<1213729945(a)qq.com>29945@qq.com>;
Cc: "Phil Rhodes"<phil_rhodes(a)rocketmail.com>ail.com>;
"jack-devel"<jack-devel(a)jackaudio.org>ackaudio.org>;
Subject: Re: [Jack-Devel] 回复： windows
On Wed, January 9, 2019 5:20 am, 1213729945 wrote:
I want to read the time code from the audio pin on
windows system which is
connected with the timecode generator TENTACLE
Why do you want to use jack? There should be plenty of examples of how to
read audio data from a Windows audio device.
How can we get the timecode via Jack ?
You can only get the audio data via jack, you would still have to derive
the timecode from the audio.
Robin, aka X42, wrote a library for dealing with timecode, as well as
command line utilities for extracting timecode from audio files.
https://github.com/x42
https://github.com/x42/libltc
https://github.com/x42/ltc-tools
They work on posix style systems like linux, you could probably get them
running on Windows with cygwin or mingw or similar. Or just run linux
instead of Windows, a lot of distributions have those tools ready to use.
--
Chris Caudle
9:23 p.m.
New subject: [Jack-Devel] »Ø¸´£º windows
On Wed, January 9, 2019 8:34 pm, 1213729945 wrote:
Can you give me a example?
I already provided a link to examples.
https://github.com/x42/ltc-tools
The application jltcdump in that project will connect to jackd ports and
convert the audio to ltc timestamps.
Start here:
https://github.com/x42/ltc-tools/blob/master/jltcdump.c
The tools in ltc-tools rely on libltc which I also provided a link for
previously.
https://github.com/x42/libltc
--
Chris Caudle
1932
days inactive
1933
days old
jackaudio@lists.linuxaudio.org
11 comments
5 participants
participants (5)
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1213729945 -
Chris Caudle -
Kjetil Matheussen -
Phil Rhodes -
Robin Gareus