Re: IllegalArgumentException: Illegal request to write non-integral

Question

Description:
               Java sound library has been bundled with java1.4. There was a
               separate sound libraray in java1.3 (sound.jar). In java1.4
               com.sun.media.sound.* contains an inbuilt sound device configuration
               library.
               A JMF class (com.sun.media.protocol.javasound.JavaSoundSourceStream.class)
               uses javax.sound.sampled.TargetDataLine Interface for reading data from
               media device and defines a buffer size to read data for the method
               javax.sound.sampled.TargetDataLine.read(byte[] b, int off, int len)
               for the variable "len"
               The source for read method of the class
               javax.sound.sampled.TargetDataLine.read resembles like this:
               public int read(byte[] b, int off, int len) {
               if (len % getFormat().getFrameSize() != 0) {
                    throw new IllegalArgumentException("Illegal request to write non-integral number of frames (" + len + " bytes )");
               Clearly, this requires that the number of bytes to be read must
               be an integral number of sample frames, such that:
               [ bytes read ] % [frame size in bytes ] == 0
Solution:
               Buffer size defined in JavaSoundSourceStream should be proper
               and adjustable for device capability.
               Before defining buffer size, the getFrameSize() method of
               javax.sound.sampled.AudioFormat should be called to verify
               the frame size of the media device.
               The following code should be inserted in the file
               com/sun/media/protocol/javasound/JavaSoundSourceStream.java
               in the method openDev():
               int adjust_FrameBuffer_size = afmt.getFrameSize();
               bufSize = bufSize - (bufSize % adjust_FrameBuffer_size);
               before defining DataLine.Info buffersize.
*/

Answer 1

hello fellows!
In my case i am plugging in the JSPEEX into java sound API. I am getting this same exception when I have samplesizebits as 16 Bits (Depth sample) . But when I make it as 8 Bit(Depth sample) its executing without any exception. wat is the reason?
java.lang.IllegalArgumentException: illegal request to write non-integral number of frames (607 bytes, frameSize = 2 bytes)
My Input parameters:
float sampleRate = 44100.F;
int sampleSizeInBits = 16; //8,16
int channels = 1;//1,2
boolean signed = true;//true,false
boolean bigEndian = false;
OS: Windows NT server.