Inpsired by the 9% variance from best-to-worst in CD Rip accuracy between different CD ROM drives shown here. https://forum.dbpoweramp.com/showthread.php?43786-CD-Drive-Accuracy-2019
Use case #1
Compare transports to transports with accuracy % metric.
Use digital output (SPDIF/Toslink) from multiple optical disk transport devices such as CD Transports, DVD Players, or CD Players.
The % accuracy number from each device to be captured in a table. Observe if there is a variance between devices.
CD Transport test method
1. Using a reference music CD on a computer, create a ripped .wav and verify it is a known good copy (using something like AccurateRip.)
2. Use the same reference music CD in one test device. Capture digital output to .wav.
3. Use @pkane 's software DeltaWave to compare the reference .wav to the .wav created by the device, specifically the CLI comparison with % matched output: https://www.audiosciencereview.com/...ve-null-comparison-software.6633/post-1117064
4. Repeat test for multiple devices and store data in a table.
End use case #1
-----------------------------
Use case #2
Unrelated to the above, compare CD Players to CD Players with accuracy % metric.
Use analog output from multiple CD Players, captured to .wav and compared to reference .wav.
The % accuracy number from each device to be captured in a table. Observe if there is a variance between devices. It is widely accepted that due to variances in DAC and analog output implementation that the results will vary.
CD Player test method
1. Using a reference music CD on a computer, create a ripped .wav and verify it is a known good copy (using something like AccurateRip.)
2. Use the same reference music CD in one test device. CD Player DAC output to ADC interface to capture .wav
3. Use @pkane 's software DeltaWave to compare the reference .wav to the .wav created by the device, specifically the CLI comparison with % matched output: https://www.audiosciencereview.com/...ve-null-comparison-software.6633/post-1117064
4. Repeat test for multiple devices and store data in a table.
End use case #2
--------------------------------
This should ignore audibility for now and focus on "Device A created a more accurate replication than Device B."
Use case #1
Compare transports to transports with accuracy % metric.
Use digital output (SPDIF/Toslink) from multiple optical disk transport devices such as CD Transports, DVD Players, or CD Players.
The % accuracy number from each device to be captured in a table. Observe if there is a variance between devices.
CD Transport test method
1. Using a reference music CD on a computer, create a ripped .wav and verify it is a known good copy (using something like AccurateRip.)
2. Use the same reference music CD in one test device. Capture digital output to .wav.
3. Use @pkane 's software DeltaWave to compare the reference .wav to the .wav created by the device, specifically the CLI comparison with % matched output: https://www.audiosciencereview.com/...ve-null-comparison-software.6633/post-1117064
4. Repeat test for multiple devices and store data in a table.
End use case #1
-----------------------------
Use case #2
Unrelated to the above, compare CD Players to CD Players with accuracy % metric.
Use analog output from multiple CD Players, captured to .wav and compared to reference .wav.
The % accuracy number from each device to be captured in a table. Observe if there is a variance between devices. It is widely accepted that due to variances in DAC and analog output implementation that the results will vary.
CD Player test method
1. Using a reference music CD on a computer, create a ripped .wav and verify it is a known good copy (using something like AccurateRip.)
2. Use the same reference music CD in one test device. CD Player DAC output to ADC interface to capture .wav
3. Use @pkane 's software DeltaWave to compare the reference .wav to the .wav created by the device, specifically the CLI comparison with % matched output: https://www.audiosciencereview.com/...ve-null-comparison-software.6633/post-1117064
4. Repeat test for multiple devices and store data in a table.
End use case #2
--------------------------------
This should ignore audibility for now and focus on "Device A created a more accurate replication than Device B."
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