Midi over Network

Is it possible to use the Midi over Network that's build into tiger with Logic Express? I've seen some users setups with Logic Pro but I can't get it to work with express.

sorry..I forgot to update my signature. I do have Tiger.
What I'm having a hard time with is getting midi into Logic. In the tutorial, the enviornment shows the individul "sessions" from the Midi Network but I don't get anything different then when I use my MidiMan usb device. I can't figure out how to get logic to connect...or maybe its not even working between the two machines...How can I test to make sure that the connection is working? the Midi Network Setup window shows both my machines and it allows me to "connect" but I never get any midi as far as I can tell.

Similar Messages

MIDI over network/MIDI over FireWire

Hi,
I'm running a MacBook with Leopard on it and I'm trying to send MIDI data between it and some older Macs. I've had no problem using the MIDI networking feature in OS X 10.4 on my PowerMac and getting it to connect to my laptop, but I'm also trying to get my old iBook, running OS X 10.3, to send MIDI data back and forth.
I would like it if there were an easy networking solution, but I would also settle for connecting the iBook to the PowerMac via FireWire if this is possible.
What can I do?

I also would like to know this?
I have just heard that Leopard has its own built-in "Midi over Network"??
I have a Mac Pro (Leopard) a G5 (Tiger) and a New Macbook Pro (Leopard) and want to know the best way of connecting these via MIDI to each other?
Can this be done via Firewire? or LAN?
And does my Tiger Machine (Tiger for some older AU's) have this feature built in or download it??
Any steps how to set these up would be great..

Midi over network, packet format & RTP MIDI compliance

hi I'm trying to interface a specialist ethernet based device to apples midi over ethernet utility in order to control Logic Pro.
Does anyone know where I can get the actual packet format of the the ethernet messages containing the midi info?
or does anybody know if apples implementation of midi over ethernet conforms to the RTP MIDI spec?
details of that spec are here:
http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-guide.txt
hope someone can help!
best regards
Dave Green [UK]

Yeah, network packet documentation is probably not something most musicians are going to care much about!
You could try registering into Apple's developer area, they have all their developer docs online, you might find something that documents what you are looking for. You really want the developer side, as these discussions are largely user-based, and do go into that sort of detail of the kind you are looking for.

Running a java program over network

Hi,
How a java program on a machine can be run without having JRE on the same machine, rather interpreting bytecode over network having JRE on another machine?

Rahul.Kumar wrote:
well, so my java program is running on x. Initialy X had JRE and on invoking java program from command prompt, it had looked for JRE at path, set in environmental settings. Now I moved JRE to another machine Y and connected these two machines (X and Y). You have two machines X and Y.
"Connected" or not has nothing to do with this discussion.
In X path is set to the JRE on Y. The path on X has absolutely nothing to do with anything on Y.
Now execute java program on X, theoretically it should work or what is wrong with this?This makes no sense. Presuming you meant Y in the above then the following must be true.
1. You must have a JRE on Y.
2. You must have a java application on Y (or one accessible via the file system on Y.)
3. You must be on Y and start the JRE passing the java application that is on Y to it.
Notice in the above there is no mention of X. There can be no mention of X.

Help! Saving an image to stream and recreating it on client over network

Hi,
I have an application that uses JDK 1.1.8. I am trying to capture the UI screens of this application over network to a client (another Java app running on a PC). The client uses JDK 1.3.0. As AWT image is not serializable, I got code that converts UI screens to int[] and persist to client socket as objectoutputstream.writeObject and read the data on client side using ObjectInputStream.readObject() api. Then I am converting the int[] to an Image. Then saving the image as JPEG file using JPEG encoder codec of JDK 1.3.0.
I found the image in black and white even though the UI screens are in color. I have the code below. I am sure JPEG encoder part is not doing that. I am missing something when recreating an image. Could be colormodel or the way I create an image on the client side. I am testing this code on a Win XP box with both server and client running on the same machine. In real scenario, the UI runs on an embedded system with pSOS with pretty limited flash space. I am giving below my code.
I appreciate any help or pointers.
Thanks
Puri
     public static String getImageDataHeader(Image img, String sImageName)
         final String HEADER = "{0} {1}x{2} {3}";
         String params[] = {sImageName,
                            String.valueOf(img.getWidth(null)),
                            String.valueOf(img.getHeight(null)),
                            System.getProperty("os.name")
         return MessageFormat.format(HEADER, params);
     public static int[] convertImageToIntArray(Image img)
         if (img == null)
             return null;
        int imgResult[] = null;
        try
            int nImgWidth = img.getWidth(null);
            int nImgHeight = img.getHeight(null);
            if (nImgWidth < 0 || nImgHeight < 0)
                Trace.traceError("Image is not ready");
                return null;
            Trace.traceInfo("Image size: " + nImgWidth + "x" + nImgHeight);
            imgResult = new int[nImgWidth*nImgHeight];
            PixelGrabber grabber = new PixelGrabber(img, 0, 0, nImgWidth, nImgHeight, imgResult, 0, nImgWidth);
            grabber.grabPixels();
            ColorModel model = grabber.getColorModel();
            if (null != model)
                Trace.traceInfo("Color model is " + model);
                int nRMask, nGMask, nBMask, nAMask;
                nRMask = model.getRed(0xFFFFFFFF);
                nGMask = model.getRed(0xFFFFFFFF);
                nBMask = model.getRed(0xFFFFFFFF);
                nAMask = model.getRed(0xFFFFFFFF);
                Trace.traceInfo("The Red mask: " + Integer.toHexString(nRMask) + ", Green mask: " +
                                Integer.toHexString(nGMask) + ", Blue mask: " +
                                Integer.toHexString(nBMask) + ", Alpha mask: " +
                                Integer.toHexString(nAMask));
            if ((grabber.getStatus() & ImageObserver.ABORT) != 0)
                Trace.traceError("Unable to grab pixels from the image");
                imgResult = null;
        catch(Throwable error)
            error.printStackTrace();
        return imgResult;
     public static Image convertIntArrayToImage(Component comp, int imgData[], int nWidth, int nHeight)
         if (imgData == null || imgData.length <= 0 || nWidth <= 0 || nHeight <= 0)
             return null;
        //ColorModel cm = new DirectColorModel(32, 0xFF0000, 0xFF00, 0xFF, 0xFF000000);
        ColorModel cm = ColorModel.getRGBdefault();
        MemoryImageSource imgSource = new MemoryImageSource(nWidth, nHeight, cm, imgData, 0, nWidth);
        //MemoryImageSource imgSource = new MemoryImageSource(nWidth, nHeight, imgData, 0, nWidth);
        Image imgDummy = Toolkit.getDefaultToolkit().createImage(imgSource);
        Image imgResult = comp.createImage(nWidth, nHeight);
        Graphics gc = imgResult.getGraphics();
        if (null != gc)
            gc.drawImage(imgDummy, 0, 0, nWidth, nHeight, null);
            gc.dispose();
            gc = null;
         return imgResult;
     public static boolean saveImageToStream(OutputStream out, Image img, String sImageName)
         boolean bResult = true;
         try
             ObjectOutputStream objOut = new ObjectOutputStream(out);
            int imageData[] = convertImageToIntArray(img);
            if (null != imageData)
                // Now that our image is ready, write it to server
                String sHeader = getImageDataHeader(img, sImageName);
                objOut.writeObject(sHeader);
                objOut.writeObject(imageData);
                imageData = null;
             else
                 bResult = false;
            objOut.flush();
         catch(IOException error)
             error.printStackTrace();
             bResult = false;
         return bResult;
     public static Image readImageFromStream(InputStream in, Component comp, StringBuffer sbImageName)
         Image imgResult = null;
         try
             ObjectInputStream objIn = new ObjectInputStream(in);
             Object objData;
             objData = objIn.readObject();
             String sImageName, sSource;
             int nWidth, nHeight;
             if (objData instanceof String)
                 String sData = (String) objData;
                 int nIndex = sData.indexOf(' ');
                 sImageName = sData.substring(0, nIndex);
                 sData = sData.substring(nIndex+1);
                 nIndex = sData.indexOf('x');
                 nWidth = Math.atoi(sData.substring(0, nIndex));
                 sData = sData.substring(nIndex+1);
                 nIndex = sData.indexOf(' ');
                 nHeight = Math.atoi(sData.substring(0, nIndex));
                 sSource = sData.substring(nIndex+1);
                 Trace.traceInfo("Name: " + sImageName + ", Width: " + nWidth + ", Height: " + nHeight + ", Source: " + sSource);
                 objData = objIn.readObject();
                 if (objData instanceof int[])
                     int imgData[] = (int[]) objData;
                     imgResult = convertIntArrayToImage(comp, imgData, nWidth, nHeight);
                     sbImageName.setLength(0);
                     sbImageName.append(sImageName);
        catch(Exception error)
            error.printStackTrace();
         return imgResult;
     }

While testing more, I found that the client side is generating color UI screens if I use JDK 1.3 JVM for running the server (i.e the side that generates the img) without changing single line of code. But if I use JDK 1.1.8 JVM for the server, the client side is generating black and white versions (aka gray toned) of UI screens. So I added code to save int array that I got from PixelGrabber to a text file with 8 ints for each line in hex format. Generated these files on server side with JVM 1.1.8 and JVM 1.3. What I found is that the 1.1.8 pixel grabber is setting R,G,B components to same value where as 1.3 version is setting them to different values thus resulting in colored UI screens. I don't know why.

Accessing shared files over network

I am having some problems with a couple of database files that I access with a Java program over network. Different computers running this program all need access to these files, and my question is if anyone know of a good way to make sure that only one user have access to these files at the time. There is no server software running were the files are stored, they are simply reached through file sharing. Currently I am creating a lock file indicating that someone is editing the files, however if I am unlucky 2 users create that lockfile at the same time and then both get access to the file corrupting it. Anyone experienced this and know of a nice solution to avoid it?

I am having some problems with a couple of database
files that I access with a Java program over network.
Different computers running this program all need
access to these files, and my question is if anyone
know of a good way to make sure that only one user
have access to these files at the time.Use a database server instead.

Share Aperture photos over network

Hallo every body,
iam searching for a solution, how to share photo over network for a long time, in our company we have 40 macs(imac, mac bookpro) and 3 xserve, vtrak and 30pc. and we have round about 30000 pic they are saved in iphoto library on one of the xserve.
My Boss wants from me to find a solution to share these photos over network. the mac users must use iphoto to access these photos.
which program shall i install on the server so that the client users can access the photos from there macs through iphoto.
at the beginning i used the share library option in iphoto, until iphoto 9.1.1. By iphoto 9.1.1 on the client when i click on the shared library my searching field disappears and i cant search in the shared photos.
I thought Aperture is the solution, so i shared the aperture library over the network (with afp protocoll) but in order to access the network aperture library, first i need to install aperture on the client and then i open iphoto and from iphoto option i can choose the option access aperture library.
how can i solve it without to install aperture on the client, is there any iphoto plugin so that i can access aperture library without installing aperture
or is there somebody uses another solution???
please help
best regards
Tony

Neither iPhoto nor Aperture is the solution for this.
The idea of using iphoto on the client machines is wrong, it's just not designed for that use. Iphoto is designed for a family with a point and shoot camera, or even a phone. Aperture is a pro level photomanager. Installing Aperture on all the mchines means you will have to purchase the app for all the machine, you need a site licence.
Also, it won't work anyway. You can't share an Aperture Library like an iPhoto one an only one user can access the Library at a time. So, one of the users acesses the Library and all the others are locked out.
Neither are what you need: you need a media server application. A pro level media server. Tell your boss he's fooling himself if he thinks anything else will work reliably.
Regards
TD

Install Solaris10 over network.

I have one sinfire v245 box which is in remote location (DR site). I want to install Solari10-u5 on it.
I can't travel to remote site due to some restriction.
Presently Solaris10-U1 is installed in the box.
I have telnet/SSH access to Solaris-OS, and i have SSH access to it's "Advanced Lights Out Manager".
There is no one in remote location who can insert Solaris10-u5 media.
In this situation, is there anyway that i can freshly install Solaris10-u5 on it ?

Ok. I learned the way how to install Solaris over network.
I have created a install server on another solaris box, the client and this box are in the same network.
I am trying to install the client, i am getting this error on the client continuously . Any idea how to solve this ?
ar_entry_query: Could not find the ace for source address <IP_Address>
ar_entry_query: Could not find the ace for source address <IP_Address>

MIDI over direct USB connection between two computers?

I'm trying to find out if it's possible to send MIDI between two computers using a direct USB to USB connection (no MIDI interface). I have not seen this done before, I don't think, but I don't know why it shouldn't be possible.
Thanks for any tips on making this work. I want to connect several computers together to control sound and video for a theatre production, to be triggered from a single MIDI source.

Hi,
I don't think there's something for midi over USB; however, there is an experimental tool for midi over Ethernet. It's called iMidi, and it's written foor PPC, and there's no native Intel version. I tried it with my PPC eMac and Intel iMac, but it took a lot of processing power
See http://openmuse.org/transport/mip_oview.html for more info.
You could also use a midi thru box and 2 midi interfaces to trigger 2 Macs with 1 midi source.
Hope this helps!
Kind regards,
Jaap

Expdp over network fails.

I have a test1 and test2 db's on two different servers. I want to run expdp from test2 db and get the export of a table from test1. I have created a db link and used network_link in expdp command. Granted read,write on directory to user with which i am connecting to db.
Using expdp over a network_link fails with this error. For the same user I have tried it locally on test2 db and it works fine.
Is there any other step to be done ?
ORA-39002: invalid operation
ORA-39070: Unable to open the log file.
ORA-39087: directory name DUMPS is invalid

expdp un/pwd*@test1db* job_name=EXP_test1 directory=dumps network_link=test1.dummy.COM dumpfile=dp.dmp log
file=dp.LOG tables=a.tableThis is the problem. When running export using NETWORK_LINK to test1, you need to connect to test2 not test1.
The idea is your connect to test2 first , test2 then connect to test1 using database link and bring the data over network and dump to local directory.
In your command it's actually running export against test1, then in that case, test1 need to have directory called dumps defined.

Impdp over network: sometimes slow

Hello,
I've just made an experience, that impdp over network is sometimes slow and sometimes fast:
My configuration:
I have a "source" database (lets say A), with version 11.2.0.1, and two "destination" databases B (11.2.0.1) and C (11.2.0.3).
The data size is about 100 GB. Import from A into B needes about 4.5 hours, and import from A into C takes about 1.5 hours.
The data which is moved are identical. I've also checked the wait states, and we have found out, that database B makes a lot of log switches
during import, which is the reason, why database B is such slow. On database C there are almost no log switches.
B has log switches frequency about one in 2 seconds. C has aprox. 6 log switches in the first 30 minutes (during DATA load).
That database B has logswitches, and C not let me think about Direct Load versus External Table Load, which is described in the documentation.
But this seems different when using network_link: the trace of the DW process does not support this information (but should, as described in 552424.1).
I think, there are some bugs/features fixed/changed between 11.2.0.1 and 11.2.0.3 regarding load strategy over network_link.
There might be also a chance, that a initial parameter is different between B and C causing to different behavior, but
Does anyone have a similar observation? Does anyone know about this "change"?
Additionals:
The users have all the same grants, the data are exact equal (by FLASHBACK_TIME), remap_schema and remap_tablespace are used at both.
Ulrich

Hello,
Database A is in archive mode, B and C not.
The problem is in the data transfer, not at index generation.
For C, the data transfer is 30 min, Index generation is about 1h.
For B, the data transfer is about 200 min, Index generation in about 1h.
I have one new information: We have switched back after this to dumpfile transfer, and interesting: With dumpfile, the import is done with Direct Path.

Mac OS X 10.4.9 and Music Lab's "Midi Over LAN" broken?

Hi all,
I run "music lab's midi over lan" and am wondering if it doesn't work under the new OSX 10.4.9......
I was forced to update 1 of my slave G5s and now "MolCP" no longer worx...... I can't be certain that it is 10.4.9, but I'm trouble-shooting,
thanx in advance.
SvK

Er, that's not forced, that's just not knowing any better!
You should have just gone to Apple and downloaded the 10.4.8 combo installer.
http://www.apple.com/support/downloads/macosx1048comboupdateppc.html
http://search.info.apple.com/?q=macos+x10.4.8&type=kbdload&search=Search&lr=lang_en&search=Go
OSX updates are always recommended to be done from the full combo update, rather than the smaller cut-down software updates anyway.

Cant open over network from Windows to Leopard, but ok to Tiger

Hi
We have a number of Mac Pro's some running Tiger and others running Leopard. I can open any quicktime file over our network from a PC to any Tiger Mac, but not to a Leopard Mac. Why not? I can see the files I can open any other file type, just not QT. Copy the same file over to one of the Tiger Mac's and I can open it from the Windows PC. This would not be such an issue, but we are dealing with 1920x1080 uncompressed files and it is a real pain to move them.
Get Error 43: a file could not be found
Any suggestions would be appreciated.
Cheers
Tony

Well outside help other than this list has solved this. Seems there is a bug in QT windows that if a QT file resides in a folder on the MAc with a name longer than 8 characters, it wont open over the network.
ie. Running QT Windows 7.5 connecting over network to a Mac running leopard.
FYI
Tony

Playing footage over network - slow down after a while

Hi everybody, I have ProRes422 footage I work with stored on network. We bought a 12TB NAS and I found, that when I play the edited movie from timeline, it freezes after a while (2-5 minutes) - it seems to me there is some kind of network overload so that the data cannot be transferred fast enough to continue playback. I thought it is problem of the NAS, but I tried to read the footage from external HDD over network and the problem is the same. Would any of you have an idea how to fix this?
Thanks

For users like you who insist on ignoring the warnings and still want to buy cheap, I offer this alternative:
Buy Local Attached Storage, RAID 5, for each work station, a gigabit Ethernet switch, and CAT6 Ethernet cabling.
These days, you can buy 8TB of RAID 5 storage, including the RAID card, for less than $4,000US. The Ethernet6 switch is about $50US and the cabling is cheap.
Buy twice the storage as you think you need, then make file copies via the gigabit Ethernet network of all files on the storage on each computer onto the storage on the other computer. Now, you are maintaining a continuous back up of all data, which is a bonus benefit.
The real benefit, though, is speed. Modern RAID 5 storage systems achieve throughput in excess of 600 MB/sec, far more than 23 MB/sec.
Your investment in new equipment will be far less than buying a SAN.

Files deleted over network

Hi, some of users over the network accidentally deleted a folder from XServe, and he asked if it can be recovered, when someone deletes a file/folder over network OSX reports that "the item will be deleted immediately", is this true? it wont going to be stored in some "Network Trash Folder"? or ".Trashes"? or "Temporary Items"??
And if it really wont be recovered, is there a way to prevent this in the future? like to tell OSX Server to put all the files/folders deleted over network to be stored in a special folder for a certain time to prevent loosing important files accidentally or by other users??
Thanks

Bertrand> This seems a nice idea, but its not exactly what i need, people still need to delete files from the server, but sometimes they delete important things and im looking for a way that the OSX Server keeps the remotely deleted file for a certain amount of time so it can be restored if needed. many times users accidentally delete files from the server and hit the "OK" button without noticing they just delete an important file from the server and not from there HD, for example, in Apple Share IP on OS9 if you delete a file over the network it would keep it in the user Trash and he empties it, and if he for example restarted his computer, the file on the ASIP would be stored in "Network Trash Folder".. why the mighty OSX Server doest have this great ability?!
Steve> Tapes is great for backup and archiving, but its not what i am really looking for, it has the same problem i have with Time Machine, time machine wont backup a file copied to the server and accidentally deleted within an hour, so Tapes, wont backup a file copied and deleted within a day..
WelshDog2> just a question: if i dont have any partition on my XRAID, how can i make it backup its self on its own HD's?! is this possible?! it wont solve my problem but its good to know if this can be done..
Thank you all guys for your replies, i really appreciate it..

Midi over Network

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