HT5176 Audio format for dictation?

What is the audio format used to capture dictation on the new iPad that is sent to Apple servers for transcription?

Hi Meg,
I don't have an iPad, but I am writing about the feature. If I had one, I wouldn't need to post this item. I would just sniff the network and review the transmission sent to Apple.
I am writing about the feature in a story and I am assuming the audio content has to be captured in some file format to be delivered over the web.

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Video and audio formats for iPad

Hey, guys.. I've tried searching this up in the forum but didn't have any luck with that..
I can't seem to upload my movies and songs into iPad... I tried converting my movie into .mov and .mp4. They can both be imported into my iTunes library but when I drag it to the iPad tab it says it cannot be copied because it cannot be played on the iPad. And some of my albums just can't be imported.
May I know the preferred format for my movies and my songs? And what could be the problem with my importing..
Thanks heaps.

Here are the spec for video and audio for the iPad:
H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

Best audio format for recording speech?

Hello everybody,
I was wondering which audio format (encoding, sample rate, sample size) is considered best for recording speech in regard of memory usage and perceptible/acceptable quality loss.
What do you suggest, what are your experiences, what reasons can you state?
Thanks!

I finally found something:
[sample rate for speech|http://wiki.audacityteam.org/index.php?title=Sample_Rates#32_kHz_.2F_14.5_kHz]
[bit depth|http://wiki.audacityteam.org/wiki/Bit_Depth#16_Bit]
I know audacity is not an application based on the java sound api but these wiki articles provide good common information on signal processing.
According to the article I believe 32kHz ist the optimal sample rate for recording speech. But I still don't feel satisfied by the information given about the bit depth. I think 8 bit is too low but 16 bit (CD quality) might be too sumptuous. Unfortunately the quality I can record with is limited my recording and output hardware so it might become hard for me to top that out. Maybe someone can help.
Is it true, that the encoding can be customized with codecs by extending the audio service provider? How would something like that work?

Audio formats for broadcast from DVD

Hi--
I have a 2 minute project that will be aired on TV from a DVD. I am trying to choose the best format in Compressor to export for DVD. Seeing as it's such a short piece, I have plenty of room. My project is cut on FCP 5.1.2 and is a 720x480 NTSC - CCIR/DV project with footage mostly from DVD and audio from a stereo CD and other stereo and mono sources.
On the video side, I have noticed no quality difference between exporting an uncompressed 10-bit file and an mpeg-2 6.2Mbps 2-pass 4:3 file. They look the same to me on DVD on my TV.
On the audio side, I am not sure whether to use Dolby or AIFF, then within those options whether to use AIFF 96/24 (that's PCM, right?) or 48/24 or Dolby (Auto) or 2.0. I just don't know enough about audio.
I use Toast Titanium to burn my DVDs, and it too has a variety of custom output options. It allows me to have an average and maximum bit rate up to 9.0 Mbps and allows me either PCM 96/24 or Dolby Digital up to 448 kbps.
My research has only granted me piecemeal info, as most people are concerned with file size and have to make choices with that in mind. I know people are reluctant to give strict guidelines on this site and that some of this is subjective, but can someone tell me what would technically give me the best (meaning most) video resolution and audio clarity?
Thanks,
Mike
Mac Pro Mac OS X (10.4.8)

Is PCM the same as 96 khz/24 bit AIFF, or are there ranges of PCM?
If my original sequence audio is set at 48 khz/16 bit, is there any advantage to PCM or is it just an exercise in futility?
PCM and AIFF are basically the same thing: uncompressed audio. Look this links just as information:
http://en.wikipedia.org/wiki/AIFF
http://en.wikipedia.org/wiki/PCM#EncodingforTransmission
You can have uncompressed audio 48kHz/16bit and 96kHz/24 bit. DVD standard accept PCM (AIFF) 48kHz/16bit. Then your original audio format from your sequence is fine to use for DVD authoring.
What is the difference difference between MPEG-2 with a high Mbps and Uncompressed 10-bit? What should I really be using for a DVD?
If your FCP project/timeline is DV NTDC, no use to export as Uncompressed 10-bit. You cannot get a better quality than your footage, and this is encoded as DV.
MPEG-2 is the oded video used in SD DVDs. No matter what video source you use to build your disc in Toast, finally you'll disc will have a MPEG2 video inside.
Then from FCP sequence use Export > Quicktime Movie > Selfcontained leaving currect settings. You'll get an independent file with same quality that your timeline that you can use for your build in Toast or encoding in Compressor.
Hope it helps!
Alberto

What's the best video/audio format for PPCS4?

Question looks like a simple and stupid one, but I've noticed many differences using various kind of file extensions.
For example when you have to put an effect.
Mercalli is very performing if the effect is applied to an .avi file instead of a native .mpeg file taken from my Sony HDR-SR videocam.
So the question is:
If I have to change the video file format, what is the best one (or one of the best) I can use?
Avi, we know, is an uncompressed (and eavy) one, but, if you have 700/800 file to edit, maybe PP could go slowly. Am I wrong?
Of course I have tried using the same video strip differently converted.
Wait helps.
Many thanks,
Ciao
Giorgio

Re-thanks Harm,
I know about .ac3 audio problems, I've posted a discussion time ago concerning this trouble.
But now I'm mainly looking for a video format.
Example:
clips in native video compression are 'round 25Mb each
converted in .avi file can reach 630 Mb
Honestly I'll fill my entire pc with a format like this.
What I'm asking is a suggested kind of file that can easily work with PP and if you know a sw that do it.
I have Tmpge but I do not know how to set it for the best results (unless I just set AVI output with the problem mentioned above).
I've read on the forum that DV AVI could be a good chance but which good sw can give me this files?
Ciao
Giorgio

Audio format for iDVD

I am working with iDVD, I have truncated some audio using Audacity I have reformatted the truncated audio to AAC iDVD does not accept it. I have reformatted the truncated audio to AiFF iDVD does not accept it. Even though iDVD help says that these two formats are acceptable. How can I make this work?

May be You find help here
*Not knowing the origin to Your problem - General approach when in trouble is as follows.*
• Delete iDVD pref file - *or rather start a new user/account* - log into this and re-try
iDVD pref file resides.
Mac Hard Disk (start-up HD)/Users/"Your account"/Library/Preferences
and is named. com.apple.iDVD.plist
While iDVD is NOT RUNNING - move this file out to desk-top.
Now restart iDVD.
• Free space on internal (start-up) hard disk if it is less than 10Gb should rather have 25Gb
• Hard disk is untidy. Repair Permissions, Repair Hard disk (Apple Disc Util tool)
• Program miss-match. iDVD 5.0.2, Mac OS X.4.11 AND QuickTime 7.5.5 - is OK - DON’T work under Leopard
• Program miss-match. iDVD 6.0.4, Mac OS X.4.11 AND QuickTime 7.5.5 - is OK (might work under Leopard)
• Program miss-match. iDVD’08 v. 7.0.1, Mac OS X.4.11 AND QuickTime 7.5.5 - is OK (might work under Leopard)
• iDVD (08) v7 Locate theme folder. Move out iDVD1, iDVD 2 and eventually iDVD4 folders to desktop - re-try
• Try a Cleaning CD/DVD that cleans the laser lens on the DVD burner/player
iDVD 6.0.4 and iDVD 7.0.1 are compatible with Mac OS X 10.5 Leopard
Last resort. from Craig. Solved the problem!! Finally!!
I deleted every iDVD application and folder from my boot drive,
emptied the trash and then installed iDVD 08 using the customize option
and I am up and running.
If You do a re-install be sure to get rid of all iDVD old parts AND then EMPTY the Trash-basket !
iDVD updated ?
Apple Codec updated ?
Start a New Clean project - or delete project assets
No of Colors - must be set to millions
Yours Bengt W

Audio format for movies

Apple claims that movies downloaded from the itunes store support surround sound but is it 5.1 channel sound?

HD movies are for the tv only.
They are 720p and audio can vary between stereo and 5.1 depending on how the studio encodes the title.

Best audio format for Flash Video?

Someone is doing a voiceover and she said she can send the
file to me in whatever format I need it in. Would anyone know what
the best one would be that would be the best quality and easiest to
work with in Flash/After Effects? I'm on a Mac, btw.
Thanks.

bobmcinnis wrote:
> Someone is doing a voiceover and she said she can send
the file to me in
> whatever format I need it in. Would anyone know what the
best one would be that
> would be the best quality and easiest to work with in
Flash/After Effects? I'm
> on a Mac, btw.
Generally there is no BEST when comes to sound. Based on the
composition, you find
same compression gives different results so best is to just
try variety.
With VOICE tho there are preferences, unlike with other sound
files.
Not sure whether the same apply to Mac, excuse me if I
provide you with inappropriate
info.
Save it as ADPCM (adaptive pulse code modulation) or Mp3
9kbps as your second choice.
Best Regards
Urami
<urami>
If you want to mail me - DO NOT LAUGH AT MY ADDRESS
</urami>

Sequence audio format stuck on 32-bit Floating Point

Hi,
The audio format for all my sequences is set to 32-bit Floating Point when I check them in the browser's Aud Format field. When I manually change the format in the sequence settings nothing changes in the browser and choosing a new sequence set up doesn't seem to help. What I don't understand is that there isn't even an option for 32-bit Floating Point in Audio Settings. Anyone else experience this?
I am using v6.0.6 on osx 10.5.8
Thanks,
Tom

16 bits per channel equals 32 bits stereo. Floating point means that you can, but don't have to, have a non-integer value for your audio.

What is the best audio format?

Anybody have any experience with audio formats for DPS?
I've got content in MP3 which will play on the iPad. Also thought about converting it to M4A but I was unsure if there'd be any benefit to that.
Any advice?
Steven Sokulski

It's not so much the extension that counts. In many cases this extension is just the same or a differently named wrapper for the real content: an encoded audio channel. For an iPad, the encoding ("codec') can be AAC, which is recently offered as an "open" standard by Apple, or the widely popular MP3. For other devices it's better to stick to MP3, since they don't necessarily support the AAC already.

What Audio Formats are Supported?

Hello.
This is a pre-sales question. I'm considering purchasing an iPod Shuffle, and have downloaded and read the PDF user's manual for it. I could not find the answer to a question I have.
What audio formats does the iPod Shuffle support?
Is .wmv supported? Or just .wav and .mp3?
Or does it support only a proprietary format?
Thank you! J. Danniel

Here is the link which explains about the compatible audio formats for IPod.
The Link is : http://docs.info.apple.com/article.html?artnum=300464
Thank you

How To Get Supported Audio Formats?

If I have a particular Mixer how do I get the supported Audio Formats
for every line?
I know DataLine.Info has a getFormats() method.
How do I get a DataLine.Info from a Line?
I know how to get the Source and Target Lines and they subinterface
DataLine, I just dont know how to get the DataLine.Info from DataLine.
Thanks a lot!

Mr Evil, thanks a lot! That was very helpful.
Your code is going to help me quite a bit when I get to 24 bit audio.
I love that JSR page. I did miss that relevant FAQ question though.
Instead of checking for instanceOf i was casting within a try catch.
It should work now.
Is there anyone alive in this forum?
I'm guessing that sound is not a popular application for Java. That was funny. I feel your pain.
I cant wait to get out of the nuts and bolts of java sound so i can
move on to the actual DSP fun : )

Hi, I have problem with importing MOV files from SJCAM 4000. MOV files are in supported formats for Adobe Premiere Elements 11. But if I'm importing MOV file, only audio part is imported, video part is not imported. How can I solve this problem?

Hi, I have problem with importing MOV files from SJCAM 4000. MOV files are in supported formats for Adobe Premiere Elements 11. But if I'm importing MOV file, only audio part is imported, video part is not imported. How can I solve this problem?

haben
From looking at the specifications of your camera (SJCam 4000), we know already what video compression your camera is using. It is H.264.
A H.264.mov file should be supported by Premiere Elements 11. On what computer operating system is your Premiere Elements 11 running?
Do you have the latest version of QuickTime installed on your computer? And, are you running QuickTime and Premiere Elements 11 from a
User Account with administrative privileges? Please go to Premiere Elements 11 Publish+Share/Computer/QuickTime to confirm that you find
presets there for the QuickTime choice there.
What are the properties of these H.264.mov files - is it 1080p30 (1920 x 1080p30) or something else? Do you know if this camera is recording with a variable or
a constant frame rate?
Please review and consider and then we will decide what next.
Thank you.
ATR

Best audio format to embed for export to pdf?

Hello, I was wondering what format for audio file would be best to embed for exporting to pdf. I want to embed the audio file in a button, for playback on mouseover in the exported pdf. Previously, when I had CS3, I actually had to convert my mp3s to avi files, as (believe it or not) that turned out to be the only format that would play back properly with a toolbar in the pdf, and only after I changed the media player (from quicktime to flash) for EACH audio file in the pdf. It was a headache trying to embed hundreds of audio files and I'm just wondering if CS5 has improved.

Steve, that's (if I remember right) why I had to convert my mp3s to avi when I used CS3; because when I played them back in the exported pdf there was no controller-- but there was for avi. The problem I then had was with Acrobat/reader, which had quicktime set as the default player, so when I clicked the button to play the audio (avi) file, the pdf froze. This I solved by changing the default player FOR EACH audio file in the document (there were over 400) to adobe flash player; and because the audio was avi, as you say, a nice controller appeared, which disappeared once the audio finished. This was an OK workaround, if it wasn't for the fact that because I was using the flash player, the interactive pdf couldn't be used by mac users-- which many of the ebook's readers are. D'oh! So now I'm thinking to just stick with the mp3 format, now that Indesign can handle mp3s, and as you say, create buttons for stop and playback; this also solves the problem of having to post-export adjust the player settings for each file, which is not very fun, because when you edit the indesign document for future versions, it's kind of an annoyance to import pages to replace pages in the pdf without replacing the audio files. Anyway. Steve thank you for thinking out the finer details of my issue; I appreciate it and will have a go at making buttons, and let you know how that goes for such an interactive pdf. Thanks also Bob for the reply.

HT3775 This file contains a track in the Dolby AC3 Audio (code "8192") format. You may need to install a QuickTime component for this audio format in order to hear the soundtrack of this file.

This message appeared and does this just mean I need to upgrade Quick time player? This file contains a track in the Dolby AC3 Audio (code "8192") format. You may need to install a QuickTime™ component for this audio format in order to hear the soundtrack of this file.

Luckily, there are DOZENS of video/media players and extensions avaliable for the Mac. Many of them are FREE, some of the better FREE ones are...
PERIAN (quicktime extension)
http://perian.org/
QUICKTIME 7.6.6
http://support.apple.com/kb/DL923
VLC media player
http://www.videolan.org/vlc/
NICEPLAYER
https://code.google.com/p/niceplayer/
And if none of those work, there is a possibility that those video files may be corrupted.

HT5176 Audio format for dictation?

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