How to play an arbitrary frequency

I'm looking for a way to play an arbitrary frequency for a certain time. Something like the playTone(note, duration, vol), but without the tone restriction.
I'm more or less trying to create high-frequency noise.
I've been googling for days now, but haven't found a solution yet. :-(

As far as I know MMAPI can't do that.
However for example an older (now deprecated) [Nokia UI API 1.1 was capable of playing an arbitrary frequency|http://www.theoreticlabs.com/dev/api/nokia-ui-1.1/com/nokia/mid/sound/Sound.html]. It's now replaced with MMAPI though.
It looks like Siemens still uses [its own API|http://www.microemu.org/microemu-extensions/microemu-siemensapi/apidocs/com/siemens/mp/game/Sound.html] that has playTone() with frequency as a parameter.
I don't really know about other devices, but most of them probably use MMAPI today. Which means that unless you're targeting a specific phone which has the ability to play an exact frequency, I'd suggest creating a wav and playing it repeatedly instead ;-)

Similar Messages

How do I sample a frequency or voice input using labview in real time?

This is my first time using labview to sample real-time! I'm trying to setup a microphone, so that when a voice is spoken to the mic I can sample the frequency, and
further customize the data in labview. The final goal is to amplify the frequency and output it to a speaker. If possible via labview. My question is do I need some type of evaluation board , microcontroller, to sample the frequencies and save the data sample to labview. Also, how would I go by doing this in real-time, or when the person is speaking to the mic the voice/frequency can be modified in labview instantenaeously. If someone can give me a step-by-step way of performing this, please let me know.
I currently use Labview 8.2 and 8.5

There are many LabVIEW shipping examples that are built to acquire sound samples from a microphone attached to a sound card. There is also an example on how to play a sound file directly to speakers, that you should definitely take a look at. These examples VIs are found in the Sound folder which is under Hardware Input and Output in the NI Example Finder. Depending on how advanced your frequency analysis will be, you might want to look into purchasing the Sound and Vibration Toolkit. For your specific application, it doesn't sound like you will need the LabVIEW Real-Time Module, you should be able to obtain very accurate results without it. Please view the article linked below for more information on this toolkit. Thanks!
Sound and Vibration Toolkit for LabVIEW
Meghan M.

How to play multiple CDs from Music list

This may sound really dumb, but I can't figure out how to play multiple albums in the latest iTunes. I have to drag them over to a Playlist then check all the individual songs. Is there a way to gang up multiple albums and get them onto Up Next by just selecting from Music? Sometimes only the first song will play when I double click an album. This would be similar to playing three CDs from your home stereo, for instance. Can this simple task be performed from ITunes, please??

Basically right click the artits in that left column and select Add to Up Next.
You can also select individual albums by right clicking the album cover a little to the right and choosing the same option.

New update how to play music on apple tv

I just updated my iPhone 4 and now can't figure out how to play music or videos on my apple tv

iPhone 4 can AirPlay audio just fine, I'd forgotten that it can't do screen mirroring. It's been so long since I had my iPhone 4 but I'm certain that some apps will allow video output over AirPlay (which is not the same as screen mirroring). The stock iOS Photo and Video apps could stream pictures and video to ATV, but true mirroring of everything you see on the screen is not supported on iPhone 4. It isn't iOS 7 that took away this capability, it is a capability that has always been limited with iPhone 4 (and earlier).
If you are sure that your old 3G can output video over AirPlay, which specific apps? Those same apps should work on the iPhone 4, even with iOS 7.

Tip: How to play a playlist one song at a time from iTunes on a computer using the checkbox property

I would like to share a tip about how to play a playlist one song at a time from iTunes on a computer. The tip I am sharing is simple, but I was not able to find it in the iTunes Help. After searching on the internet I found the idea for this solution in a discussion in which this was presented as a frustrating problem rather than a desired behavior. This tip relies on the checkbox for each song in iTunes. For a song in a playlist to play automatically, the checkbox must be checked. To keep a song from playing in a playlist, simply uncheck it. Therefore, to keep all songs from playing automatically in a playlist, simply uncheck them all. Now you have a list of desired songs in a desired order but none of them will play automatically. You can play each one when you want to play it without having to search for the next song and without having to be at the computer to stop the playing after each song.
Step by step:
1. Create the playlist.
2. Uncheck all of the check boxes in the playlist (In iTunes for Windows, ctrl click one of the check marks to uncheck all of the checkboxes at once)
3. Now double click (or select and press spacebar) a song to play it. It will stop when finished because there is no other song checked to be played next.
4. If you want to change back to normal sequential play, ctrl click one of the check marks again to change all of the checkboxes back to the checked status.
Based on some discussions I found while looking for a solution (including at least one in which the questioner got bashed about why anybody would ever want to do such a thing and in which the proposed solutions were things like creating one song playlists or simply press stop after each song), some may not understand why this would ever be desired. Here's why I wanted to do it:
I was responsible for playing a series of songs at a dance. I needed to stop after each song to have a transition time to allow me to introduce the next song and to give new dancers time to get onto the floor and other dancers an opportunity to leave the floor. Furthermore, I was also dancing and didn't want to have to spend time searching for the next song (which is why I wanted to create a playlist in advance with just the songs I wanted to play in the order I wanted to play them) and I wanted each song to stop after playing since I was not at the computer to press stop.
I hope this will help others who have a similar need.

Thank you! I put some self help hypnosis tracks to listen to on my iPod. I did not want to go to the next track automatically, I wanted to listen to them individually, one at a time. (If I fell asleep, I did not want to 'wake up' in the middle of a different track.) Your information helps me understand that I need to re-load this playlist onto my iPod from my Mac computer, only first, I need to UNCHECK the boxes in front of each track so the iPod will STOP each time after playing the selected track. It is too bad that so many functions are not availabvle within the iPod, but that is probably why they can make it so compact.

How to manage different load frequencies in OWB?

How to manage different load frequencies in OWB?
We are using OWB repository 10.2.0.1.0 and OWB client 10.2.0.1.31. The Oracle version is 10 G (10.2.0.3.0). OWB is installed on Linux.
We have situation to bring data feed into database using OWB on different load frequency. Eg. Daily, weekly and monthly.
Are there any builtin features/best approaches in OWB to implement the above?
Does runtime audit tables maintain such load frequency data?
If not, do we need to maintain our own tables (custom) to maintain such data?
How do we able to validate before starting ETL process with respect to previous load frequency for current load?
How did our forum members handled above situations?
Any idea ?
Thanks in advance.
RI

If you look at the OWB public function WB_RT_GET_LAST_EXECUTION_TIME you can examine the query OWB uses to return this information. It is based entirely on public views that you should already have synonyms for in your OWB user.
Now, how you want to implement logic to determine if a mapping is run is entirely up to you If you are using process flows you could embed your call to start a mapping in a custom transformation that queries the repository and starts a given mapping if it deems the correct interval to have passed. We do something similar as a means to perform a process flow restart (it will skip over any successfully completed mappings from the last run if the last COMPLETE run did not finish succesfully), so that a restart picks up where the last run failed.
The main caveat I would make to mining the runtime repository is that someone purging old data might very well purge the data you are depending on, so you might want to build a couple of tables to hold your own metadata for you. E.g. one table holding the mapping name and desired interval between loads, and another holding the mapping name and last run date. The second table could get updated by the post-mapping procedure of each mapping.
Anyway, the data IS there in the repository. How you intend to access it or how much you are willing to trust its persistence is up to you.
Mike

I'd like to know how to play a sequence of podcasts. Does anybody know?

I'd like to know how to play a sequence of podcasts?
Finishing to hear a podcast, it comes back to main menu! Why can it play all the contents in sequence, like music?

Hold down the mute button on the steering wheel until you hear,"Ready" and then say "Voice". That will bring up Siri.

How to play live streaming in windows phone 8.1 silverlight app?

Hi,
I am developing a windows phone 8.1 silverlight app. In my I want to show live streaming youtube channel , I think it is not possible,
Actually that youtube channel is a television channel , I want to stream that live tv in my app.(I tried to load youtube channel in webbrowser in iframe tag but it is not opening)
Anybody help me how to play live tv or live streaming in my app,
Thanks..
Suresh.M

Hello,
You will likely need to write a custom
MediaStreamSource that can access the media stream and parse it. Windows Phone supports h.264 natively and as long as the site serves up a media stream that contains h.264 frames you can parse it and have our built in decoder decode and display it. You
will need to have intimate knowledge of the streaming protocol used by the website that you are trying to play. You must also make sure that the website is not using protected content. IANAL so I would recommend that you have your local law professional
(lawyer) review the licensing of the website that you are attempting to connect to and stream from before continuing your development. Your lawyer can make sure make sure their licensing allows you to do this.
I hope this helps,
James
Windows SDK Technologies - Microsoft Developer Services - http://blogs.msdn.com/mediasdkstuff/

How to play movies from Accer DD Hard Drive

I've had my computer for less then 2 weeks and i haven't been able to install all of the major apps in order for certain things to run on my computer. How do i play movies from my external hard drive. I keep having a pop up on saying "QuickTime Player can't open "Bad Grandpa.avi". To see if additional software is available that will enable QuickTime Player to open the movie, click Tell Me More." I have installed QuickPlayer 7 but i am still recieving that pop up message. I have an Accer DD Hard drive.

AVI, a windows formatted move. can't be played by QT. Toe AVI's on your mac see:
http://www.iskysoft.com/topic-snow-leopard/how-to-play-avi-with-quicktime-on-mac .html

How to play music through my external hard drive through iTunes on my mac?

I recently purchased a external hard drive for my mac for my movies and music, as my disc was almost full.
I have spent HOURS searching how to play music through my itunes without transferring them onto the mac.
BUT everytime I click media destination folder in prefrences and advance, the whole music library in my external hard drive folder is greyed out, and when i click it nothing happens.
PLEASE someone help...

First, a brand new drive is likely formatted for use with Windows. You need to reformat it for use with Mac.
Pondini: Formatting, Partitioning, Verifying, and Repairing Disks... - http://web.me.com/pondini/AppleTips/DU.html
Second, you are better off moving the whole iTunes library to the external drive, not just the media.
iTunes: How to move [or copy] your music to a new computer [or another drive] - http://support.apple.com/kb/HT4527
Quick answer if you use iTunes' default preferences settings: Copy the entire iTunes folder (and in doing so all its subfolders and files) intact to the other drive. Open iTunes and immediately hold down the Option (alt) key (shift on Windows), then guide it to the new location of the library.
Do not confuse moving your whole folder and library with moving just media files as in
iTunes for Mac: Moving your iTunes Media folder - http://support.apple.com/kb/HT1449

Looking for some info on how to play music files on IPAD2

Hi and thanks for sharing. Trying to figure out how to play sound files such as wavs or mp3s on my ipad2 while I browse the internet or use my computer. I was trying to see if the music feature will play my songs or if I can import downloaded files from the net to itunes and if that will play in the background. I have an audio program that can send sound files to email and was trying to figure out how, similarly, to get this play in the background while I do things too. That and sound files downloaded from the internet. Do these go to iCloud when you download them? Can I import sounds into itunes with my iPad someway. (It's the only computer or device I own). Basically looking for a pathway to get music from my audio program that's sent to email, and clips I've DLed off sites on the internet, to play while I use the pad or browse the net. Thanks for your intel on the mission. Cheers!

The only way to get content into the Music app is via iTunes store downloads or syncing with itunes on a computer. You will need to find a third party media player such as VLC (whick integrates with DropBox and GoogleDrive, if that appeals to you).

I downloaded a new version of itunes, then rented a movie to watch on my computer. now i cant find the rented movie or how to play it. please help.

I downloaded a new version of iTunes, then rented a movie to watch on my laptop. Now I cant find the rented movie or how to play it. Please Help.

It should be in the Movies part of your library - if you select Movies, then is there a Rentals tab on it with that film in it ?

How to play the audio file please help me

i would like to play audio files such wav files, au files etc
I would like to know how to play audio file easily in Applet and
applications
Thank you

import sun.audio.*; //import the sun.audio package
import java.io.*;
//** add this into your application code as appropriate
// Open an input stream to the audio file.
InputStream in = new FileInputStream(Filename);
// Create an AudioStream object from the input stream.
AudioStream as = new AudioStream(in);
// Use the static class member "player" from class AudioPlayer to play
// clip.
AudioPlayer.player.start(as);
// Similarly, to stop the audio.
AudioPlayer.player.stop(as);

How to play videos in Nokia C2-02 ?

could u pls help me how to play videos in c2-02 mobile?
Moderator's notes: The post was edited. A more appropriate subject is provided.

If you want to play videos present in your pc on your phone, they must be converted to phone supported resolution.
You have to convert the high resolution videos to low resolution 320X240, MP4 format.
You can do so with Format Factory software for PC.
Get it at www.pcfreetime.com
Any further help, feel free to ask.
-------------------If this post helped you, click on accept as solution.------------------
-----------------------------Appreciate by clicking on white star.----------------------------

How to play videos in normal quality in youtube as it is always buffered in hq and there is no option to change quality??

how to play videos in normal quality in youtube as it is always buffered in hq and there is no option to change quality?? problem because i hav network speed upto 512kbps and hq videos are nt buffered properly in it..

macalltheway wrote:
What a bummer.
Now I'm stuck with a just-about useless camera. I really need something as small as the FH1 (it's TINY).
Hard-drive camcorders record MPG2, which I assume makes them just as useless.
Is then MiniDV the only choice for a sub-$500 1080i/p camera that will allow me to edit footage without converting?
If so, any tips on the smallest one out there?
Google came up with Sony's DCR-PC55, but it's four years old and only does SD...
Do you want good OR do you want cheap? That is the decision you need to make. Also, tiny tends to be the opposite of good.
P.S. AIC converted it best; ProRes(Lo/HQ) left it pixelated for playback. But it takes about an hour a minute, and increases the file-size tenfold, so it's no good anyway.
Yes, your actual editable video file is going to be 10x bigger than a MPEG-4 file. That is what you want.
P.S. 2 "....FCP is converting your video behind the scenes which is causing all your problems."
If that's the case, then my oldish MacBook Pro (2GHz Duo, 2GB RAM) has enough juice to play the 640x480 MPG4 clips smoothly, but not the HD ones. Could the latest MacBook (2.5/6/8GHz, 8GB RAM) could play the 1080p30 clips smoothly?
No, you still have the same problem. MPEG-4 files are non-editable. You really need to convert to an editable format and then bring that into FCP. MPEG Streamclip is going to be your best choice.

How to play an arbitrary frequency

Similar Messages

Maybe you are looking for