Ask Justin Frankel

justin = { main feed , music , code , askjf , pubkey };

Ask Justin Frankel
No reasonable question unanswered since 2009!

Suggested topics: programming, music, sleep, coffee, etc.

Note: please do not ask questions about REAPER features, bugs or scheduling, use the forums instead.

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Question: Second daw question: what's the 10 feet high level view of multithreading? I assume roughly when you get called by the call back you have a pool of threads you ask to process a DAG starting from the leaves without dependencies and going up? Let me bluntly know as soon as the questions become annoying and I'll stop :p
Asked by eubn (79.40.196.x) on December 11 2019, 11:17pm
Reply on December 12 2019, 4:53am:

Maybe twitter would be better to avoid flooding this thing? or do it in the comments to this question? What is DAG? A good first place to look at threads is on getting data from disk. This can almost always (and should almost always) be done from a worker thread at a lower priority... 6 Comments...

Question: When it comes to daw development what percentage of success would be due to coding knowledge and what percentage due to domain knowledge. Assuming those are the only important one bings because it is my question
Asked by Boboram (155.70.39.x) on December 11 2019, 7:53pm
Reply on December 11 2019, 10:52pm:

What do you mean by success? Software development isn't about knowledge IMO, it's more about vision and design and then figuring out how to do things... Comment...

Question: Hey Justin! Nice to see what you've done for Reaper 6, it looks great! I'm Juan and I'm the leader of a Latin American Game Audio community. We've got weekly shows live where sometimes we use Reaper to show Sound Design tricks and we also do some other stuff to keep our community active. Recently we've come up with the idea of organizing a Latin American Game Audio Jam remotely. Unity and Audikinetic are interested on this adventure and we wonder if you'd like to join us! Any chance to talk about it?
Asked by Juan Jáuregui (186.31.57.x) on December 11 2019, 2:18am
Reply on December 11 2019, 10:53pm:

Send me an email with more specifics, justin at cockos dot com! Comment...

Question: I want to write a toy daw. I think it might be fun. Mind if I drop a bunch of general questions every once in a while in here? To start off, how does the timing of the audio callbacks work at a high level? At some point the hardware/asio/whatever will ask us for a buffer to fill. Do we do the computing then, or do we want to already have a buffer filled to give to the driver?
Asked by eubn (79.40.196.x) on December 10 2019, 7:59pm
Reply on December 10 2019, 10:07pm:

Right, the audio thread will ask for a buffer periodically. If you _can_ precalculate that buffer, e.g. it is not dependent on any of the inputs (and not on user interaction that need to happen with low latency), then sure, precalculate it. If not, you'll have to do some on-the-fly. And at some level, some stuff can be done ahead of time, others not so much. 1 Comment...

Question: How do feel when dolts like me make speculative guesses about how your development process works?
Asked by Robert Randolph (47.205.86.x) on December 10 2019, 4:59pm
Reply on December 10 2019, 10:06pm:

Nothing wrong with speculative guesses, or constructive criticism for that matter. The second-order conversations about it all are the useless and often tiresome part ;) Comment...

Question: Would you accept help from some of the pro coders in the community to help sort out the technical debt?
Asked by JohnnyQuest (78.97.219.x) on December 10 2019, 2:45pm
Reply on December 10 2019, 10:04pm:

I'm not sure it works that way 3 Comments...

Question: Here is reaper merch shop.spreadshirt.com/pipelineaudio/
Asked by dspeirs (97.73.244.x) on December 9 2019, 10:55pm
Reply on December 9 2019, 11:52pm:

That's unofficial, but we gave him permission ages ago, yeah. Comment...

Question: Not the person who asked about merch, but I'd definitely wear reaper hoodies. It's always a nerd-out whenever you find someone else using reaper and it would be facilitated by literally wearing the logo of the software :p
Asked by eubn (79.40.196.x) on December 9 2019, 8:02pm
Reply on December 9 2019, 11:52pm:

Hah Comment...

Question: I want to purchase reaper (from France) but my payment is refused on the page and I ignore the reason why. Is there any other way to send you money, with western union or anyelse mean? I am very grateful for the great daw you've created. Many thanks.
Asked by marc lecomte (86.222.223.x) on December 9 2019, 5:15pm
Reply on December 9 2019, 11:53pm:

If you use PayPal you can send using that, otherwise email support at cockos dot com and we'll help you out maybe? 1 Comment...

Question: How can I make money using your listen2myradio page, that is, I have a radio and broadcast with your program. Is there any way to put advertising sorry for my bad English Cheers
Asked by Mihai Robert Boaghe (188.76.98.x) on December 9 2019, 4:54pm
Reply on December 9 2019, 11:53pm:

I'm not sure any of that makes any sense to me? 1 Comment...

Question: Very grateful for the massive 'give' that is Reaper. Has run the home studio for our North London band for the last 7 or 8 years. Rehearsing, Recording and Listening has massively improved our live playing! Anything we can offer in return? [ license fee seems slightly inadequate! ].
Asked by Resonance Band (82.27.56.x) on December 9 2019, 12:18pm
Reply on December 9 2019, 11:54pm:

My friend André would be really happy if you let Yes, Exactly, Yes! open for you at some point, ha ha... Comment...

Question: superior drummer 3? addictive drums 2? bfd3? which one you recommend?
Asked by EMMm (213.7.60.x) on December 8 2019, 6:11pm
Reply on December 8 2019, 6:31pm:

It's been a while since I've used any of them... Comment...

Question: Oh. My. God. I have a pen tool in the midi editor for CC. Was that always there? It wasn't, wasn't it? Oh my god. You just made REAPER 10x better for orchestral mockups. ... time to buy some video guides and a license for 6.x... Dude you have no idea how much I wanted this
Asked by eubn (79.40.196.x) on December 8 2019, 10:57am
Reply on December 8 2019, 6:31pm:

There was but it has gotten a lot better Comment...

Question: hey! -have you considered any merch/apparel/ badges/posters of product? caps,beanies..tshirts? *sexy calender* ectetc? (can anybody license/sell such things?) ty.
Asked by befrank (95.151.177.x) on December 7 2019, 10:44pm
Reply on December 8 2019, 6:31pm:

We should, probably, but haven't. Comment...

Question: Hey, dude-who-asked-for-a-job here. I see a new version of REAPER released! Congrats. Happy playing (and coding).
Asked by eubn (79.40.196.x) on December 7 2019, 4:57pm
Reply on December 8 2019, 6:31pm:

Thanks! Comment...

Question: What is the techincal difference (implementation step) between Reaper dialogs that are following theme colors and those that don't? Is it really a huge chore to make them all consistent? :(
Asked by EvilDragon (141.138.38.x) on December 6 2019, 4:06pm
Reply on December 6 2019, 11:19pm:

If anything most of them shouldn't be colored IMO, it makes a lot of controls just look terrible. But feature latch. 1 Comment...

Question: Cocoa or GDK? which one you prefer? And which is easier for you?
Asked by Poooooooooooooooooooooooooooooooooooooooooooooooooooooony (46.252.211.x) on December 5 2019, 6:44pm
Reply on December 6 2019, 4:36am:

Both are such a mess. I'd take Cocoa. Comment...

Question: programming, music, sleep, coffee... choose any one, only one :P
Asked by Test (104.236.195.x) on December 5 2019, 8:16am
Reply on December 6 2019, 4:36am:

Sleep Comment...

Question: Does the technical debt include the sampler?
Asked by Mommy (104.223.93.x) on December 5 2019, 2:02am
Reply on December 6 2019, 4:37am:

No, it's more like poor design decisions that affect a ton of different things and that are a huge pain to change. Comment...

Question: Am I gonna find my true love
Asked by Heri (182.253.14.x) on December 4 2019, 4:05pm
Reply on December 4 2019, 4:22pm:

Let me ask the magic 8-ball. It says "The Lobby". Comment...

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