Hot Cocoa 1 Mp3 Download ((TOP)) Audio
Anja Tabatabai
My application lists audio files (MP3) in a NSTableView, with the object for each row containing a path to the audio file. I would like to be able to preview an audio file with Quick Look (like in Finder) when hitting the space bar while one row is selected.
I specifically need to capture the audio that is being passed to the Built-in Output device in order to record it. Any insights? The answers so far have been helpful, but have not helped me understand how the data going to the output can be captured, agnostic of the input source.
This doesn't cover the actual steps required to capture that audio input. However, these links should provide you with enough sample code to begin interfacing with your input device. I'll post more links in this answer if I happen across them.
I'm decoding a video format that has an accompanying audio track in a separate file. Per the specs, I render a frame of video every 1/75th second. And the length of the video file is the same as the length of the audio track.
I'm playing the audio with Audio Queue Services (which I chose because I figured there would be situations where I needed precise timing control -- just the sort of situation I'm encountering!). It's a big API and I haven't progressed much past the sample code in Apple's programming guide (though I have wrapped things up in a nicer ObjC API).
In ideal situations, things work fine with the basic playback setup. The video and audio stays synced and both end at the same time (within my own ability to tell the difference). However, if performance hiccups (or I attach the Leaks Instrument or something), they quickly get out of sync.
Obviously the first thing to decide is whether to sync the audio to the video or the video to the audio. From the question it seems you've decided the video will be the master and the audio should sync to it.
I would approach this by keeping track of the number of frames of video rendered, along with the frame rate. Then, when enqueuing your audio buffers, rather than passing a monotonically increasing value for the startTime adjust the buffer's start time to match any discontinuities observed in the video. This is a bit vague because I don't know exactly where your audio is coming from or how you are enqueuing it, but hopefully the principle is clear.
Is there an easy way to load, play and control an mp3 file from cocoa? Tried googling it, but, as all things apple, i get messy results and have no idea where to start. As i understand, there's and NSSound, but it has lots of limitations and then there's CoreAudio, but it's very difficult. So can someone point me in a right direction with this? Thanks.
(English pronunciations of cocoa from the Cambridge Advanced Learner's Dictionary & Thesaurus and from the Cambridge Academic Content Dictionary, both sources Cambridge University Press)
The Tierra Audio Cocoa is a rich and full sounding character that is distinctly described by it's name. Think of a rich dark chocolate. Or in terms of audio, think of the robust and smooth rich sound of a 49. That is what you get with the Cocoa. If you need to add or enhance the heft in a track, this is the tool for that.
One reason I love the Yoto player is how easy it is to use. You put the card in the slot at the top for it to start. If you want the music or audiobook to stop playing you just pull the card out. The right orange button is to change the track of the song and the left orange button is to adjust volume. So easy for kids to use!
They have two options of sizes when getting your Yoto player. The Yoto mini is perfect for traveling. It is also good if you have multiple kids at different ages and they each want their own. I have the Yoto player and my boys just share. I would love to get the Yoto mini as they get older so they can listen to audiobooks and music when we travel.
You can purchase cards on their website. They have audiobooks, music, and learning languages. Their age range of cards goes from 0-12+. The cards ship fast and easy. They also have weekly deals where a selection of cards are on sale. If you are part of the yoto club you get free shipping and credit for two cards a month. Learn more about the Yoto club below.
They also allow you to make your own cards which is the main reason I decided to go with Yoto player. I loved that I could my own music and audiobooks. I recently made a card with all their favorite songs from their favorite shows. They were so excited to listen to the Bluey theme song and the spider man song.
This preamp is perfect for use with your Shure SM7B microphone without adding colour, or your favorite passive ribbon microphones, protecting them from the possible adverse effects of phantom power and preserving all the original nuances while amplifying the weak signal usually generated by this type of mics so that you have no noise at the input of your audio interface when trying to compensate for that low signal.
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