Re: rumours of "bad quality audio" [was need to hire}
Re: rumours of "bad quality audio" [was need to hire}
- Subject: Re: rumours of "bad quality audio" [was need to hire}
- From: Admiral Quality <email@hidden>
- Date: Thu, 25 Feb 2010 00:32:32 -0500
Just curious, what's the raw hardware spec of an iPhone's DACs and
ADCs? Is it maximum of 16 bit, or 24 bit? And what's the maximum
*real* sample rate? 44.1 kHz, 48 kHz, 96 kHz or 192 kHz? I'm not
referring to processing power, just the highest capabilities of the
input/output hardware. I spent a few minutes googling for this spec,
but didn't find anything.
So, what exactly IS the highest theoretical quality?
- AQ
On Wed, Feb 24, 2010 at 9:44 PM, William Stewart <email@hidden> wrote:
> Good points all...
> The point I raised was not necessarily (well, only partly!) meant as a
> challenge. If there are concerns however, then this is a completely
> legitimate forum to raise them in, and I would want to encourage you to do
> so.
> Bill
> On Feb 24, 2010, at 1:24 PM, Steven Winston wrote:
>
> Hello,
>
> Just as a quick observation... The iPhone itself is about as good at audio
> as most other embedded platforms, better than most, but not as good as
> some. Apple honestly gets a LOT right, the iPhone OS has realtime audio
> capabilities (OpenAL) (android doesn't). The audio pipeline is clean and
> easy to work with, albeit it would be nice if we had less restrictions (some
> restrictions are quite confusing/cumbersome). However, In actual terms of
> quality, you are going to have the capabilities needed for the apps
> mentioned along with the capabilities for the project you're talking about
> here. So Quality is really in your hands.
> The areas that could be improved on the iPhone that are in other platforms
> are: could use more external speakers (N9500 Music Express, and a large
> portion of the next generation smart phones have this). Prefer to also
> mount the speaker on the front rather than the back (probably would never
> happen due to issues such as front side real estate.). Lastly, I'd want to
> see two mics on the iPhone as well. The noise reduction capabilities
> offered by the second mic is of tremendous benefit.
>
> Anyway, quality is quite good, could be better, but definitely good enough
> for this application.
>
> Thanks,
> Steve
>
> On Wed, Feb 24, 2010 at 11:52 AM, contact <email@hidden> wrote:
>>
>>> On Feb 24, 2010, at 10:40, contact wrote:
>>>>
>>>> Geez, I only asked! The guy wanted to use it for the Medical purposes,
>>>> so I thought I'd take a look at quality comparisons, as it may influence
>>>> choice of portable device used. 's all.
>>>
>>> I think it's fair to say that the audio programming experience levels of
>>> all iPhone developers spans a very wide range. In other words, reviewers
>>> who find audio quality to be lacking could merely be suffering the
>>> consequences of entry-level programmers who don't understand CoreAudio or
>>> the limitations of the low-power ARM processor. Particularly, the free
>>> software for the iPhone is probably more likely to have audio quality
>>> issues.
>>>
>>> If you're concerned about audio quality, then you'll need to carefully
>>> design your desired quality aspects and look for specific reviews or tests
>>> which are more scientifically based. If you just look at amateur reviews
>>> and blogs, then you can't really be sure that the reviewer even knows what
>>> they're talking about.
>>>
>>> Brian Willoughby
>>> Sound Consulting
>>
>> OK thanks for the replies folks.
>> I was concerned about what the Internet had said - that's why I asked on
>> here, you see!
>>
>> It's about the audio differences in transferring a project from a Mac to
>> the iPhone, it looks like it'll be fine though, judging by the other apps
>> mentioned.
>> Thanks again,
>> Dave.
>>
>>
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