Methods for establishing audio track digital audio extraction speed
View Patent ↗A method for recording audio data to optical media is provided. The method includes obtaining a number of audio tracks on a source optical media and setting a source optical media device to a maximum read speed for the source optical media device. Also included is reading a first audio track on the source optical media and determining a digital audio extraction (DAX) speed for the first audio track. Further, a mid-point audio track on the source optical media is read and determining of the DAX speed for the mid-point audio track on the source optical media is processed. The method further includes calculating a record speed for the number of audio tracks on the source optical media to a destination optical media. The DAX speed for the first audio track is used for recording the first audio track through an audio track immediately preceding the mid-point audio track, and the DAX speed for the mid-point audio track on the source optical media is used for recording the mid-point audio track through a last audio track.
1. A method for recording audio data to optical media, comprising:
obtaining a number of audio tracks on a source optical media;
setting a source optical media device to a maximum read speed for the source optical media device;
reading a first audio track on the source optical media;
determining a digital audio extraction (DAX) speed for the first audio track;
reading a mid-point audio track on the source optical media;
determining the DAX speed for the mid-point audio track on the source optical media; and
calculating a record speed for the number of audio tracks on the source optical media to a destination optical media, wherein the DAX speed for the first audio track is used for recording the first audio track through an audio track immediately preceding the mid-point audio track and the DAX speed for the mid-point audio track on the source optical media is used for recording the mid-point audio track through a last audio track.
2. The method of claim 1 , further comprising:
creating an array with a length corresponding to the number of audio tracks on the source optical media to be recorded to the destination optical media; and
identifying a mid-point of the array,
wherein the DAX speed for the first audio track is saved to a first position in the array corresponding to the first audio track and the DAX speed for the mid-point audio track is saved to a position at the mid-point of the array corresponding to the mid-point audio track.
3. The method of claim 1 , wherein the DAX speed for the first audio track and the DAX speed for the mid-point audio track is saved to a temporary file structure.
4. The method of claim 1 , wherein the determining the DAX speed includes:
calculating a track length for an audio track to be extracted;
starting a timer;
reading the audio track at the maximum read speed for the source optical media device;
extracting the audio data;
stopping the timer; and
calculating a rate of extraction of the audio data.
5. The method of claim 1 , wherein the record speed is calculated to ensure a rate of data recorded to the destination optical media does not exceed a rate of data sent to a buffer of a destination optical media recording device.
6. The method of claim 1 , wherein the destination optical media is a compact disc.
7. The method of claim 1 , wherein the method is implemented in a computer readable media having program instructions for recording audio data to optical media.
8. A method for recording audio data to optical media, comprising:
identifying a number of audio tracks on a source optical media, a source optical media device containing the source optical media being read at a maximum read speed;
reading a first audio track on the source optical media, such that a digital audio extraction (DAX) speed for the first audio track is identified;
identifying a mid-point audio track on the source optical media, such that a DAX speed for the mid-point audio track is identified; and
calculating a record speed for the number of audio tracks on the source optical media to a destination optical media, wherein the DAX speed for the first audio track is used for recording the first audio track through an audio track immediately preceding the mid-point audio track and the DAX speed for the mid-point audio track on the source optical media is used for recording the mid-point audio track through a last audio track.
9. The method of claim 8 , further comprising:
creating an array with a length corresponding to the number of audio tracks on the source optical media to be recorded to the destination optical media.
10. The method of claim 9 , further comprising:
identifying a mid-point of the array.
11. The method of claim 10 , wherein the DAX speed for the first audio track is saved to a first position in the array corresponding to the first audio track and the DAX speed for the mid-point audio track is saved to a position at the mid-point of the array corresponding to the mid-point audio track.
12. The method of claim 8 , wherein the DAX speed for the first audio track and the DAX speed for the mid-point audio track is saved to a temporary file structure.
13. The method of claim 8 , wherein the determining the DAX speed includes:
calculating a track length for an audio track to be extracted;
starting a timer;
reading the audio track at the maximum read speed for the source optical media device;
extracting the audio data;
stopping the timer; and
calculating a rate of extraction of the audio data.
14. A method for recording audio data to optical media, comprising:
identifying a number of audio tracks on a source optical media, a source optical media device containing the source optical media;
identifying a digital audio extraction (DAX) speed for a first audio track of the source optical media from the source optical media device;
identifying a digital audio extraction (DAX) speed for a mid-point audio track of the number of audio tracks; and
calculating a record speed for the number of audio tracks on the source optical media to a destination optical media, wherein the DAX speed for the first audio track is used for recording the first audio track through an audio track immediately preceding the mid-point audio track and the DAX speed for the mid-point audio track on the source optical media is used for recording the mid-point audio track through a last audio track.
15. The method of claim 14 , further comprising:
creating an array with a length corresponding to the number of audio tracks on the source optical media to be recorded to the destination optical media.
16. The method of claim 15 , further comprising:
identifying a mid-point of the array.
17. The method of claim 16 , wherein the DAX speed for the first audio track is saved to a first position in the array corresponding to the first audio track and the DAX speed for the mid-point audio track is saved to a position at the mid-point of the array corresponding to the mid-point audio track.
18. The method of claim 14 , wherein the DAX speed for the first audio track and the DAX speed for the mid-point audio track is saved to a temporary file structure.
19. The method of claim 14 , wherein the determining the DAX speed includes:
calculating a track length for an audio track to be extracted;
starting a timer;
reading the audio track at a maximum read for the source optical media device;
extracting the audio data
stopping the timer; and
calculating a rate of extraction of the audio data.