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I am working on a musical instrument app for iPhone and need sample sounds that I can use for the various wind instruments. I'll be using OpenAL with looping, so a 1 second sample that is spot-on in-tune and without vibrato or other variation is essential.
My question is: Where can I find audio samples that are, or can be converted to .CAF format for looping play? Need these to be "realistic" sounding, not electronic sounding. Not looking for freebie, looking for professional quality.
Thanks in advance!
Here's the command for converting to CAF format:
/usr/bin/afconvert -f caff -d LEI16#44100 myaudiofile.wav myaudiofile.caf;
Regarding finding samples, there's a ton out there. Search Google with "free audio samples".
Magazines like Sound On Sound and Computer Music will often have deals. Although sometimes you'll need to buy the magazine, or be a subscriber. They do lots of reviews of commercial sample CDs. Often these are quite reasonably priced (e.g. $50).
As with everything, the key is to check the license carefully to make sure it's full use and that you can redistribute in your app. That also applies to samples that you can download for free.
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Now I try to record audio in browser in small pices by RecordRtc js library.
What I've explored for this moment:
Inspite of what codec and format I point in RecordRtc options Chrome want to record only webm;codecs=opus audio, Firefox want to work only with ogg and only firefox know what the ogg is this, my android-mobile-webview records wav (I haven't checked Ff, but chrome is definitely not gonna work with wav)
Is there any crossbrowser solution in this branch? maybe I just need to explore another js recorders? Or I have to be prepared to recode every formats from one to another by my hands if I want to unify audio format in my project.
I event cannot find any generalized information about what codecs-browsers supporting pairs there are.
Next I'm gonna send these blobs to another user one by one and than play it by MediaSource.souresBuffer that of cource have pretty much differences in its way to work in defferent browsers too.
May you share any experience or good practices in all this browser-audio-recording stuff with me?
I alredy have been checking different combinations of borwsers and codecs, talking with chatgpt about possible solutions, but it only advice to checking codecs suppornig by methods like MediaRecorder.isTypeSupported and recoding audio by ffmpeg.js if sth wrong.
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I would like to try recording sleep with an iPhone, connected to a power source overnight. However, I'm not sure if the default camera is capable of recording videos that long. A colleague suggested using a video codec with very few key frames, just saving the changes between frames.
My questions are twofold - are there any open source projects that already do long(3+ hours) video recording on iPhone. How would I extract the file from the iPhone if it is 3 Gb or so in size?
At first glance this doesn't really appear to be a programming question...but you hint that you may be looking for open-source code for a video codec.
However I thought I might shed a bit of light on the iPhone itself.
If you're recording at 320p, that averages out to about 15mb per minute. Calculating 8 hours, equals 7.2GB.
To my knowledge, there is no time limit, just the limit of your iPhone empty HD space. However, some people have reported that the video recording stops sometimes, seemingly randomly, during very long recordings.
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Hi i am indy developer .
as you know many of indy developer had tiny resources to use.
so i decide using garage band for my app
but i was frustrated what is this right thing ?
if i make sound and effect using garageband and it's preset or resources
it's legal to use?
Yes, it is. Apple's sounds effects are royalty-free.
i. GarageBand/Jam Pack Software. You may use the Apple and third party audio loop content
("Audio Content"), contained in or otherwise included with the GarageBand/Jam Pack Software, on a
royalty-free basis, to create your own original soundtracks for your video and audio projects. You may
broadcast and/or distribute your own soundtracks that were created using the Audio Content,
however, individual samples, sound sets, or audio loops may not be commercially or otherwise
distributed on a standalone basis, nor may they be repackaged in whole or in part as audio samples,
sound libraries, sound effects or music beds.
(from the iLife SLA - Software License Agreement)
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I am trying to build a webpage that shows the video of a webcam on live.
Right now, I have no webcam, so I'll have to buy one. I don't mind how much it costs, I just want it working with a good resolution (at least 720p).
I don't know which kind of camera I should buy and which programming language is better for that (if it's possible I would prefer not to use Flash).
Can you help me?
Sorry for my bad English, I'm trying to improve ;)
Alex
To show in a webpage, you can use IP-Camera. They cost a little more, but they can serve their images as independent network node. They also supports voice and live compression (H264 and MPEG4).
Best brand is Axis, but there are lots of options.
For Axis camera models, adding view to page would be as easy as add this item to your page:
<img src='http://192.168.1.20/axis-cgi/mjpg/video.cgi'>
It works for most browser, not IE. For IE, they have support as well here.
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do they store the hashes of the videos and then compare them? how do they know that you had already uploaded that video? there are plenty of videos on you tube that have the same file name and file size.
They likely do hashes. But since Google acquired YouTube, there's a lot more intelligence in their code. Google and others have been working on creating "digital fingerprints" for media like movies, where defining characteristics become part of the same result even if the file is mildly tampered with. Because this is an ongoing race between (loosely speaking) "pirates" and "the Powers That Be," there's research ongoing on both sides of the fence, and the algorithms involved are likely to be kept as industry secrets.
(a good excuse for me to only give you this vague, hand-waving explanation instead of some useful facts).