Software and process for low-latency audio recording
AssigneeDiamondware, Ltd.
InventorsErik Lorenzen, Keith Weiner
Life of this patent
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Abstract
A process and software for aggressive capture of digital recording on computers, for the purpose of reducing audio latency, which includes periodic frequent polling of a recording buffer containing audio recording data and a known value, reading out data values that do not match the previously written known value, and writing over the data with the known value.
Claims20
A method for reducing latency in digital audio recording comprising the steps of:
- (a) polling at a polling address in a sequentially addressed recording buffer to which buffer are captured audio recording data and to which buffer a known value has been written, the polling continuing until a finding of a data value that does not match the known value previously written into the buffer;
- (b) reading out the data value at the polling address that does not match the known value previously written into the buffer;
- (c) writing over the non-matching data with the known value;
- and
- (d) moving to the next sequential address in the buffer or wrapping to the beginning of the buffer and repeating steps (a) to (c) using the next sequential address as the polling address.
A software program stored in memory for reducing latency in digital audio recording, said software program comprising instructions to a computer to perform the steps of:
- (a) polling at a polling address in a sequentially addressed recording buffer to which buffer are captured audio recording data and to which buffer a known value has been written, the polling continuing until a finding of a data value that does not match the known value previously written into the buffer;
- (b) reading out the data value at the polling address that does not match the known value previously written into the buffer;
- (c) writing over the non-matching data with the known value;
- and
- (d) moving to the next sequential address in the buffer or wrapping to the beginning of the buffer and repeating steps (a) to (c) using the next sequential address as the polling address.
A system for reducing latency in digital audio recording, said system comprising:
- (a) means for polling at a polling address in a sequentially addressed recording buffer to which buffer are captured audio recording data and to which buffer a known value has been written, the polling continuing until a finding of a data value that does not match the known value previously written into the buffer;
- (b) means for reading out the data value at the polling address that does not match the known value previously written into the buffer;
- (c) means for writing over the non-matching data with the known value;
- and
- (d) means for moving to the next sequential address in the buffer or wrapping to the beginning of the buffer using the next sequential address as the polling address.
A software program stored in memory for reducing latency in digital audio recording, said software program comprising instructions to a computer to perform the steps of:
- (a) polling at a polling address in a sequentially addressed recording buffer to which buffer are captured audio recording data and to which buffer a known value has been written, the polling continuing until a finding of a data value that does not match the known value previously written into the buffer;
- (b) reading out the data value at the polling address that does not match the known value previously written into the buffer to reduce latency;
- and
- (c) moving to the next sequential address in the buffer or wrapping to the beginning of the buffer and repeating steps (a) and (b) using the next sequential address as the polling address.
Dependencies are inferred from the claim text.