Djay and Vjay Updated for iPhone 5s, 64-Bit A7 Processor 2-4 Times Faster for Some Tasks

DjayThree days after the iPhone 5s went on sale, Algoriddim has updated its Djay and Vjay apps with 64-bit support, including new features that are only possible with the A7 processor.

For the realtime video-mixing app Vjay, the most processor-intensive task has always been decoding two videos simultaneously. For prior iPhones, the Algoriddim team needed to use a number of tricks and optimizations to get the process to work, and the resolution was degraded. With the iPhone 5s and the 64-bit A7 processor, decoding speed is twice as fast as before, and the iPhone 5s can process two full 720p HD video streams. The app can also export HD video over AirPlay in real time with zero latency.

The new version of Djay now offers a new Harmonic Match feature that can analyze the musical key of a song in realtime and then transpose the key to ensure that transitions from one song to another match musically. This sort of realtime analysis and transposing simply wasn't practical with prior iPhones, Algoriddim told MacRumors -- analysis might take 10 to 15 seconds and the phone simply didn't have the horsepower to do realtime transposing of keys without risking dropouts of audio.


Because the A7 processor is so powerful, Algoriddim CEO Karim Morsy explained, its programs can spend processing cycles on a smoother user interface and better visual effects. He told us that the Djay and Vjay programming teams were able to 64-bit compatible versions of the apps just three days after the iPhone 5s went on sale largely because of Apple's excellent developer tools.

The teams use a shared codebase between Algoriddim's iOS and Mac apps, and code that had been written previously for the 64-bit versions of the Mac apps was able to be transitioned to iOS with a relatively minimal amount of effort. They were able to get 64-bit versions running in the Xcode iOS simulator and when the iPhone 5s hardware was released on Friday, the team was able to get a version of the software -- complete with new iPhone 5s-only features -- ready for a public release on Monday.

Morsy explained that because Apple's Xcode tools allow code to be moved from desktop to mobile, its development cycle was dramatically shortened. "Anything we develop on one platform, the code can be reused on other platforms," Morsy told MacRumors. "Our strength is a code base shared across three platforms, and it's a key reason we are successful on Apple's app ecosystem."

Djay is available on the App Store for Mac, iPhone and iPad. [Direct Links: Mac, iPhone, iPad]
Vjay is available on the App Store for iPhone and iPad. [Direct Links: iPhone, iPad]

Top Rated Comments

viperGTS Avatar
122 months ago
And people said 64-bit was useless in a mobile phone. :rolleyes:
Score: 26 Votes (Like | Disagree)
kemal Avatar
122 months ago
Full sized iPad with even faster clocked A7. Please stop making me wait Apple.
Score: 12 Votes (Like | Disagree)
likemyorbs Avatar
122 months ago
lol...Vjay.
Score: 11 Votes (Like | Disagree)
superdan311 Avatar
122 months ago
The teams use a shared codebase between Algoriddim's iOS and Mac apps, and code that had been written previously for the 64-bit versions of the Mac apps was able to be transitioned to iOS with a relatively minimal amount of effort. They were able to get 64-bit versions running in the Xcode iOS simulator and when the iPhone 5s hardware was released on Friday, the team was able to get a version of the software -- complete with new iPhone 5s-only features -- ready for a public release on Monday.

This is exactly why 64-bit is such a huge deal... Apple has already begun to merge OS X & iOS and now with 64-bit chipsets in the iPhone & beyond developers will be able to make essentially one app for them all!

It's like the FUTURE man....
Score: 11 Votes (Like | Disagree)
portishead Avatar
122 months ago
Vjay is a terrible, terrible name

what did I miss? It's meant video jockey to me for the past 15 years.
Score: 6 Votes (Like | Disagree)
blackcrayon Avatar
122 months ago
So much for the A7 only being fast "in benchmarks".
Score: 5 Votes (Like | Disagree)

Popular Stories

iPhone trade in

Apple Adjusts Trade-In Values for iPhones, Macs, and More

Wednesday January 25, 2023 9:40 am PST by
After announcing new Mac and HomePod models last week, Apple adjusted its trade-in values for select devices in the United States. iPhone trade-in values decreased by up to $80, and most Android smartphones also went down. Mac trade-in values remained unchanged or increased by up to $40 depending on the model, while some Apple Watch models increased in value and others decreased. Trade-in...
iphone 15 pro wifi 6e

Internal Apple Document From Leaker 'Unknownz21' Confirms Wi-Fi 6E Will Be Limited to iPhone 15 Pro Models

Friday January 27, 2023 10:01 am PST by
Multiple rumors have suggested that the next-generation iPhone 15 models will adopt the Wi-Fi 6E standard that Apple has already introduced in the iPad Pro and MacBook Pro, and now a leaked document appears to confirm Apple's plans. Sourced from researcher and Apple leaker Unknownz21 (@URedditor), the document features diagrams of the iPhone 15's antenna architecture. D8x refers to the...
iPhone 14 Pro Purple Side Perspective Feature Purple

iPhone 15 Expected to Feature Wi-Fi 6E Like Latest Macs and iPad Pro

Wednesday January 25, 2023 5:39 pm PST by
The iPhone 15 will support Wi-Fi 6E, according to a research note shared this week by Barclays analysts Blayne Curtis and Tom O'Malley. The analysts did not specify whether the feature will be available on all models or limited to the Pro models. Apple has added Wi-Fi 6E support to a handful of devices so far, including the latest 11-inch and 12.9-inch iPad Pro, 14-inch and 16-inch MacBook...
maxresdefault

Hands-On With the New M2 Max MacBook Pro

Thursday January 26, 2023 12:14 pm PST by
New 14-inch and 16-inch MacBook Pro models with the latest M2 Pro and M2 Max chips are available in Apple retail stores and are already in the hands of customers, and we picked up one of the new M2 Max machines to answer all of the questions MacRumors readers considering a purchase might have. Subscribe to the MacRumors YouTube channel for more videos. Yesterday, we asked MacRumors fans on...
Mac Pro 2019 Apple

Mac Pro Enthusiasts Raise Concerns Over Upgrade Limitations of Apple Silicon

Thursday January 26, 2023 6:30 am PST by
The new Mac Pro coming later this year is expected to feature the same spacious modular design as the 2019 model, but with fresh concerns over its lack of upgradeability surfacing, some users are beginning to wonder what the transition away from Intel architecture actually means for Apple's most powerful Mac. The current Intel Mac Pro that Apple sells is popular with creative professionals...
iOS 16

iOS 16.3 for iPhone Launching Next Week With These 4 New Features

Friday January 20, 2023 11:43 am PST by
In a recent press release, Apple confirmed that iOS 16.3 will be released to the public next week. The software update will be available for the iPhone 8 and newer and includes a handful of new features, changes, and bug fixes. Below, we've recapped bigger features in iOS 16.3, including support for physical security keys as a two-factor authentication option for Apple ID accounts, worldwide ...
iPhone 14 Pro Purple Side Perspective Feature Purple

iPhone 15 Pro Rumored to Have These 8 Features

Friday January 27, 2023 2:11 pm PST by
Apple's next-generation iPhone 15 Pro and iPhone 15 Pro Max are expected to be announced in September as usual. Already, rumors suggest the devices will have at least eight exclusive features not available on the standard iPhone 15 and iPhone 15 Plus. An overview of the eight features rumored to be exclusive to iPhone 15 Pro models:A17 chip: iPhone 15 Pro models will be equipped with an A17...