Received a used test tape today to verify independantly my levels & speed accuracy. Wasn't too concerned about speed as the beast is quartz locked and I replaced the belts a few years back. With that piece of mind, I confidently used the AP generator to make my own trial W&F tape on a Metal Master.
I'm pretty stoked and happy as a pig in s h ! t that I picked this test rig up. It's gonna come in handy and it's sure a lot of fun!
W&F came in right at spec for peak readings and the 2 sigma stables were a tad bit lower - for both IEC & NAB.
THD+N looks pretty darn good too although there is a difference between the left & right channels.
At 1kHz both channels dance around 1% with Dolby Off - again at spec.
I've often wondered how having Dolby engaged during tests like this would effect measurements - just as a curiosity.
Well on THD+N, Dolby B drops the measurement down about 0.1 % and Dolby C, another 0.1 %... on average.
Interesting...
I'm pretty stoked and happy as a pig in s h ! t that I picked this test rig up. It's gonna come in handy and it's sure a lot of fun!
W&F came in right at spec for peak readings and the 2 sigma stables were a tad bit lower - for both IEC & NAB.
THD+N looks pretty darn good too although there is a difference between the left & right channels.
At 1kHz both channels dance around 1% with Dolby Off - again at spec.
I've often wondered how having Dolby engaged during tests like this would effect measurements - just as a curiosity.
Well on THD+N, Dolby B drops the measurement down about 0.1 % and Dolby C, another 0.1 %... on average.
Interesting...
Attachments
Last edited:
