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panright · Posted: Tue Feb 04, 2014 1:58 pm Post subject: ipDTL - specific issue

Liz, Bob, George et al --

Been exploring IP-DTL (I use Source Connect but with my new router it's been a big headache).

One comment on another board said that a major "CON" to IP-DTL is that you MUST be able (via ProTools or whatever) to record directly off of the internet - e.g, YouTube and the like.

I have PTools and an MBOX (and API Lunchbox) but am not sure how to configure this to work with ipDTL and the free trial has expired.

I have an appt w/ Dr. Whittam tomorrow and may ask him then - but any configuration tips or hangups people would like to share will be helpful.

Thanks!
Perry
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Bish · Posted: Tue Feb 04, 2014 2:21 pm Post subject:

I'd be interested in hearing the results here.

I have an ipDTL subscription and have been experimenting with recording the stream. It's not an urgent issue for me as I rarely have to record the incoming... I'm the one that's being recorded at down the line. I would like to be able to record... but primarily I want to know how, so I can assist the other end.

So far... taking the stream out of the computer and looping it back round into the regular input via the mixer is a no-brainer... a simple hardware solution that works well. Record in stereo, pan your mic left, the computer input right and you've got two sides of a conversation nicely separated... great for dialogue pieces or audio drama etc.

I'm on a Mac, so I was hoping to use Soundflower. However, while Soundflower intercepts and re-directs the audio from Chrome (YouTube videos etc.), it dos not intercept the incoming stream from ipDTL. This may be an opus thing... investigation under way.

Pumping the incoming stream directly into the DAW would be ideal... but I'm not sure it's anything they're working on as a matter of urgency.
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georgethetech · Posted: Tue Feb 04, 2014 3:27 pm Post subject:

Yes, IPDTL is still a kludge when it comes to interfacing with a DAW, not a plug-in architecture like Source Connect. I've used a dedicated USB Audio Codec such as the Behringer UCA202 for this purpose (just like I would with Skype) and it works fine. Just patch into your DAW's I/O has needed with good ol' fashioned analog audio cables. SoundFlower is a Mac only thing.
If the UCA202 is too cheap for your tastes, go blow some cash on something fancier like a Scarlett 2i2.
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JBarrett · Posted: Tue Feb 04, 2014 4:07 pm Post subject:

Peter: another audio-routing solution (that's multi-platform) is JACK. I wrote a blog post about how to connect Skype to my DAW a while back, and later made a video on it. I don't have ipDTL, but am curious how JACK would fare in trying to route the signal. I've used SoundFlower as well, but prefer JACK for most routing purposes.

For those interested...

JACK for Windows
JACK for Mac
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Justin S. Barrett
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Bish · Posted: Tue Feb 04, 2014 4:41 pm Post subject:

Thanks Justin. I tried, but it's the same issue... Jack jacks Chrome OK, but not the ipDTL stream. I poked around for a while, but to no avail. I'm sure there are plenty of people working on this, but for the moment, a simple hardware loop seems to be the simplest option.
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Bish a.k.a. Bish
Smoke me a kipper... I'll be back for breakfast.
I will not feed the trolls... I will not feed the trolls... I will not feed the trolls... I will not feed the trolls.

Lance Blair · M&M Joined: 03 Jun 2007 Posts: 2279 Location: Atlanta

Here's the new tutorial vid for ipDTL:

https://www.youtube.com/watch?v=mH_h-PK5VCs
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Mike · Posted: Tue Feb 04, 2014 11:24 pm Post subject:

I had the same problem with Soundflower not being able to route the ipDTL audio to a DAW. I emailed Kevin at ipDTL about it and he thought it might have something to do with a bug in Chrome 32 that sends audio to the wrong device when multiple audio interfaces are present. He suggested I download the Chrome Beta and try that. I did and now everything works beautifully.

The other headache I had was finding a routing that would allow the client side to listen to playback when using ipDTL as a phone patch replacement. I couldn't get it to work in software since the Apogee only seems to pass through audio coming into the mic/line inputs, not the software return But a hardware solution works well.
I use the Macs audio out and run it into the second channel of my Apogee Duet. I then created a third track on the DAW (DP7) that sits between the track I'm recoding on and the track capturing the client audio. This new track is set to send audio to the Mac output, and therefore to the second input channel of the Apogee. This way, all I need to do to playback for the client is drag the relevant audio down one track. I could also route the audio through a buss that could then send to the Apogee via the Mac, but that would involve having to Mute tracks which is a lot more hassle then simply dragging an audio file down a track.
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heyguido · Posted: Tue Feb 04, 2014 11:55 pm Post subject:

The Scarlett 18i6 and the Roland Octa-capture are both reasonably priced solutions with usb 2.0, quality preamps and converters, and software routing to handle mix-minus for Isdn, ipdtl, SourceConnect, Skype, Google Hangouts, and other coming ip solutions....

And both are dirt cheap on Craigslist, ePay, and the second hand market.... And they both make great road rigs or backups. Get one while they're still available.
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Lee Gordon · Posted: Wed Feb 05, 2014 2:47 am Post subject:

JTVG · Backstage Pass Joined: 21 Jun 2007 Posts: 433

After doing some testing with ipDTL, two things that are amazing to me about this software. 1 - no port mapping needed in your router. It just works. This is exactly what I was waiting for in the streaming service sector. 2 - The delay is less than you'd experience if you were talking to your friend on a cell phone. I know this because I tested it alongside a cell call and the audio arrived at the other location FASTER through ipDTL than it did through the phone, which puts it in a class by itself, faster than both ISDN and Source Connect.

Too early to know if it'll become the long-term standard in IP, but for ISDN bridging with as little delay as possible, it's pretty close to perfect.
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Joe Szymanski
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bobsouer · Posted: Sun Feb 09, 2014 3:17 pm Post subject:

That's exactly what I've been thinking, Joe.

I've worked out the routing through my mixer so I can do just that. So, with the free remote control app available through Chrome and ipDTL I can now do an ISDN session from anywhere I can get a decent broadband internet connection and there's essentially NO extra latency.
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Bob Souer (just think of lemons)
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ISDN, Source Connect, phone patch

ballenberg · Posted: Sun Feb 09, 2014 4:42 pm Post subject:

Bridging through a bridging partner, as with SC and say, Digifon or OutofHear? Is that what you're referring to?

bobsouer · Posted: Sun Feb 09, 2014 5:28 pm Post subject:

Bill,

Nope. Using only my own equipment to bridge. If I'm on the road, I log in to ipDTL with my laptop, and connect to my secondary studio computer back in Pittsburgh, which I leave up and running. Since I have the HQ+ service, I use both sides of my service, one with my laptop the other with my secondary studio computer. My ISDN box inputs and outputs are routed so when I speak into my microphone attached to my laptop on the road, the audio goes through my mixer and on down the line via my ISDN box. When my client speaks to me over the ISDN, it's routed through my mixer so I can hear in my headphones attached to my laptop.

I just change my laptop's audio settings so my M-Audio Fast Track Pro that I use on the road is my set as my primary audio device while I'm doing this, which takes care of the issue of routing the ipDTL audio in and out of my laptop. When the session is done, I just change back to my normal audio settings on my laptop.
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Be well,
Bob Souer (just think of lemons)
The second nicest guy in voiceover.
+1-724-613-2749
ISDN, Source Connect, phone patch

Bish · Posted: Sun Feb 09, 2014 6:35 pm Post subject:

Bob, first reaction... Explode

Second reaction... that's brilliant. Absolutely brilliant!
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Smoke me a kipper... I'll be back for breakfast.
I will not feed the trolls... I will not feed the trolls... I will not feed the trolls... I will not feed the trolls.

bobsouer · Posted: Sun Feb 09, 2014 6:44 pm Post subject:

Peter,

Thank you.
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Be well,
Bob Souer (just think of lemons)
The second nicest guy in voiceover.
+1-724-613-2749
ISDN, Source Connect, phone patch