In this application the transmission channel is the CD itself.
From the en.wikipedia.org
It was just a more or less neutral transmission channel.
From the krugman.blogs.nytimes.com
Accordingly, human speech has developed into an information transmission channel of enormous capacity.
From the newscientist.com
The benefit is reducing the data rate used on the transmission channel while maintaining the same high-definition quality.
From the sciencedaily.com
One is half-tempted to conclude that America might, just might be able to dodge the financial transmission channel.
From the economist.com
If the monetary transmission channel is made direct with the public and the banking system is circumvented then this lag will be reduced.
From the economist.com
The second, channel encoding, adds extra data bits to make the transmission of data more robust to disturbances present on the transmission channel.
From the en.wikipedia.org
His work led him to devise a new color television system that automatically corrected for the differential phase distortion that can occur along the transmission channel.
From the en.wikipedia.org
He also investigated the theoretical limits of data transmission over a noisy channel.