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Nvidia officially unveils next-generation Tegra 4 SoC

arstechnica.com

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Re: Nvidia officially unveils next-generation Tegra 4 SoC

#61

Post by stephencanon »

buster wrote: post #41
cageface wrote: post #34

It's really a pity that Android makes it so difficult to get down to the metal on this hardware. If I want to take advantage of Neon intrinsics I have to use the NDK and write them by hand. On iOS I just use the Accelerate framework directly.

You have to have some limitations, it's not like every Android device can do NEON.

That's the whole point of having a first-party API for common DSP and compute tasks; Accelerate uses NEON where it's available, uses SSE/AVX where it's available, used AltiVec where it was available, and will use $(FutureISAExtension) where its available. Most of the time, developers can just call the interfaces without worrying about the details at all.

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#62

Post by cageface »

buster wrote: post #60
chipsy wrote: post #51

Earlier quoted context omitted.

Practically the entire audio field(recording, synthesis, processing, sequencing, etc.) has stayed away from Android because latency is far too high on average, ruining UX; it also varies widely between manufacturers, which doesn't help matters. To some extent this also impacts all games, since high-latency playback hurts the experience.

I am wondering how true this is with Android 4.1+, because audio latency was one of the major goals for Android 4.1 and more so in 4.2 and was supposed to bring audio latency on par with iOS. See: https://developer.android.com/about/versions/jelly-bean.html (Section is called Low-latency Audio). edit: So, even when said apps were not possible in the past, now would be a very good time to port your app (or those apps…

http://code.google.com/p/android/issues/detail?id=3434

There's some hope for 4.2 but needless to say there's no point targeting that market yet. None of the devices currently on the market have acceptable audio latency. And Android still has no MIDI support.

Android has its strengths but it can't hold a candle to iOS for these kinds of applications.

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#63

Post by buster »

cageface wrote: post #62
buster wrote: post #60

Earlier quoted context omitted.

I am wondering how true this is with Android 4.1+, because audio latency was one of the major goals for Android 4.1 and more so in 4.2 and was supposed to bring audio latency on par with iOS. See: https://developer.android.com/about/versions/jelly-bean.html (Section is called Low-latency Audio). edit: So, even when said apps were not possible in the past, now would be a very good time to port your app (or those apps…

http://code.google.com/p/android/issues/detail?id=3434 There's some hope for 4.2 but needless to say there's no point targeting that market yet. None of the devices currently on the market have acceptable audio latency. And Android still has no MIDI support. Android has its strengths but it can't hold a candle to iOS for these kinds of applications.

Mh, i just tested on my phone ( https://play.google.com/store/apps/details?id=de.darkbloodst... ) and i don't see/hear a latency, certainly nothing above 100ms, so i don't think your remake "NONE of the devices currently on the market.." is true. My Galaxy Nexus is over a year old and works fine. Atleast i suppose that this app would show what you think is not working.

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#64

Post by [deleted] »

jpxxx wrote: post #19
ulyssesgrant wrote: post #12

Earlier quoted context omitted.

Haha, I agree that the keynote was at times extremely awkward and hard to sit through, but I have to say I enjoyed how casual it was. Compared to something like an Apple presentation, where it seems like there's 0 room for error or for tangents, this felt more "real".

It was thoroughly amateur. The host/CEO was leaden, the pacing was all over the place, anything involving women was grotesque, it was full of meaningless and half-hearted digressions, nothing shown was placed into an industry context, and their livestream offered an unskippable chat box that was mostly "U FAGGOTS" and "BRING THAT GIRL BACK". Demo example: "Here are the guys who made the game Hawken." Who? What compan…

[deleted]

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#65

Post by cageface »

buster wrote: post #63
cageface wrote: post #62

Earlier quoted context omitted.

http://code.google.com/p/android/issues/detail?id=3434 There's some hope for 4.2 but needless to say there's no point targeting that market yet. None of the devices currently on the market have acceptable audio latency. And Android still has no MIDI support. Android has its strengths but it can't hold a candle to iOS for these kinds of applications.

Mh, i just tested on my phone ( https://play.google.com/store/apps/details?id=de.darkbloodst... ) and i don't see/hear a latency, certainly nothing above 100ms, so i don't think your remake "NONE of the devices currently on the market.." is true. My Galaxy Nexus is over a year old and works fine. Atleast i suppose that this app would show what you think is not working.

Latency for pro audio apps should be around 10ms. No Android phone gets close to this but all iOS devices do. You can use the free Caustic app on Android to measure your exact audio latency and then you will understand why none of the pro audio app makers bother with Android despite the large install base.

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#66

Post by bane »

OmarIsmail wrote: post #26

While a somewhat valiant effort from a specs/control perspective, I think this is going to be a pretty big flop. Primarily because it doesn't have much of a market, which means that they won't be able to overcome the chicken-and-egg issue. There's a reason why the main gaming console manufacturers also have large development studios as well. Every new gaming device needs a killer app to launch it past the critical ma…

As somebody who is really interested in retrogaming (and loves his gp2x wiz like a beloved pet), I'm definitely in the market for this. I've found that as I'm getting a little older smaller handhelds are getting harder and harder for me to enjoy. This thing looks perfect, and I already know there's a pretty robust emulator ecosystem for Android already.

Re: Nvidia officially unveils next-generation Tegra 4 SoC

#67

Post by buster »

cageface wrote: post #65
buster wrote: post #63

Earlier quoted context omitted.

Mh, i just tested on my phone ( https://play.google.com/store/apps/details?id=de.darkbloodst... ) and i don't see/hear a latency, certainly nothing above 100ms, so i don't think your remake "NONE of the devices currently on the market.." is true. My Galaxy Nexus is over a year old and works fine. Atleast i suppose that this app would show what you think is not working.

Latency for pro audio apps should be around 10ms. No Android phone gets close to this but all iOS devices do. You can use the free Caustic app on Android to measure your exact audio latency and then you will understand why none of the pro audio app makers bother with Android despite the large install base.

I see, i have no clue about "pro" music stuff so let's hope they fix that... (says 40ms on my phone).
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