Error resilient scalable audio coding

A method for scalable audio coding of audio signals, comprising the steps of:

• signal-processing input audio signals;
• quantizing the signal-processing input audio signals into quantized data of weighted subbands;
• and
• bit-plane coding the quantized data into an embedded audio bitstream of bit planes, wherein:
• the embedded audio bitstream includes binary data having bits;
• each said bit-plane has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits;
• the third partition is between the second and fourth partitions.

A computer usable medium having embodied thereon a computer program for coding audio signals into an audio bitstream, the computer program comprising:

• a first code segment for signal-processing input audio signals;
• a second code segment for quantizing the signal processed input audio signals into quantized data of weighted subbands;
• a third code segment to affect bit-plane coding the quantized data into an embedded audio bitstream of bit planes, wherein:
• the embedded audio bitstream includes binary data having bits;
• each said bit-plane has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits;
• the third partition is between the second and fourth partitions.

A scalable audio decoding apparatus comprising:

• a decoder to decode an embedded audio bitstream of bit-planes into quantized data of weighted subbands, wherein:
• the embedded audio bitstream includes binary data having bits;
• each said bit-plane has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits;
• the third partition is between the second and fourth partitions;
• an inverse quantizer to dequantize the quantized data of weighted subbands into audio signals.

A method for scalable audio decoding of an embedded audio bitstream into audio signals, comprising the steps of:

• decoding an embedded audio bitstream of bit-planes into quantized data of weighted subbands, wherein:
• the embedded audio bitstream includes binary data having bits;
• each said bit-plane has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits;
• the third partition is between the second and fourth partitions;
• dequantizing the quantized data of weighted subbands into audio signals.

A computer usable medium having embodied thereon a computer program for decoding of an audio bitstream into audio signals, the computer program comprising:

• a first code segment to decode an embedded audio bitstream of bit-planes into quantized data of weighted subbands, wherein:
• the embedded audio bitstream includes binary data having bits;
• each said bit-plane has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits;
• the third partition is between the second and fourth partitions;
• a second code segment to dequantize the quantized data of weighted subbands into audio signals.

A data structure for a coded bit-plane of an embedded audio bitstream that includes binary data having bits, the data structure comprising:

• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits, wherein the third partition is between the second and fourth partitions.

A system comprising:

• a client computer coupled to a network;
• and
• a server computer coupled to transmit an embedded audio bitstream of bit-planes to the client computer via the network, wherein the embedded audio bitstreams of bit-planes has a data unit that includes:
• a beginning partition having one or more contiguous refinement bits;
• a second partition having one or more contiguous coded significance bits;
• a third partition having one or more contiguous sign boundary mark bits;
• and
• a fourth partition having one or more contiguous coded sign bits, wherein the third partition is between the second and fourth partitions.