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#1
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FM recording on Audio Cassettes
Hi:
Why do cassettes use FM recording? Why not AM recording? How would the artifacts differ? Thanks in advance. |
#2
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FM recording on Audio Cassettes
What do you mean? And what type of cassettes are you talking about???
-- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= "Curious" wrote in message om... Hi: Why do cassettes use FM recording? Why not AM recording? How would the artifacts differ? Thanks in advance. |
#3
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FM recording on Audio Cassettes
What do you mean? And what type of cassettes are you talking about???
-- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= "Curious" wrote in message om... Hi: Why do cassettes use FM recording? Why not AM recording? How would the artifacts differ? Thanks in advance. |
#4
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FM recording on Audio Cassettes
What do you mean? And what type of cassettes are you talking about???
-- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= "Curious" wrote in message om... Hi: Why do cassettes use FM recording? Why not AM recording? How would the artifacts differ? Thanks in advance. |
#5
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FM recording on Audio Cassettes
"Curious" wrote ...
Why do cassettes use FM recording? Why not AM recording? They don't use "FM" or "AM" recording. They use baseband (direct) recording with HF bias. Assuming you are discussing conventional audio "Compact Cassettes" (a-la Philips, et. al) |
#6
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FM recording on Audio Cassettes
"Curious" wrote ...
Why do cassettes use FM recording? Why not AM recording? They don't use "FM" or "AM" recording. They use baseband (direct) recording with HF bias. Assuming you are discussing conventional audio "Compact Cassettes" (a-la Philips, et. al) |
#7
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FM recording on Audio Cassettes
"Curious" wrote ...
Why do cassettes use FM recording? Why not AM recording? They don't use "FM" or "AM" recording. They use baseband (direct) recording with HF bias. Assuming you are discussing conventional audio "Compact Cassettes" (a-la Philips, et. al) |
#8
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FM recording on Audio Cassettes
Curious wrote:
Hi: Why do cassettes use FM recording? Video cassettes CAN use FM recording for audio. Why not AM recording? All the malaises of the AM principle, including the problem of what happens at max negative modulation, i. e. modulation related loss of carrier wave. How would the artifacts differ? Interrupted audio in case of AM recording. Thanks in advance. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#9
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FM recording on Audio Cassettes
Peter Larsen wrote in message ...
Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? |
#10
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FM recording on Audio Cassettes
Curious wrote:
How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! |
#11
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FM recording on Audio Cassettes
Richard Crowley wrote:
Curious wrote: How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#12
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. No. The original question says nothing about "video" in any sense of the word. Go back and read it again. The Subject clearly says "Audio Cassettes". This is the rec.AUDIO.tech newsgroup. If "Curious" were asking about VIDEO cassettes, he/she would have surely responded to at least ONE of the three different messages asking for clarification of the question. I believe that you have made an unwarranted assumption, and that you have not explicitly stated the assumption to "Curious", and that you are unintentionally misleading him/her. |
#13
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. No. The original question says nothing about "video" in any sense of the word. Go back and read it again. The Subject clearly says "Audio Cassettes". This is the rec.AUDIO.tech newsgroup. If "Curious" were asking about VIDEO cassettes, he/she would have surely responded to at least ONE of the three different messages asking for clarification of the question. I believe that you have made an unwarranted assumption, and that you have not explicitly stated the assumption to "Curious", and that you are unintentionally misleading him/her. |
#14
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. No. The original question says nothing about "video" in any sense of the word. Go back and read it again. The Subject clearly says "Audio Cassettes". This is the rec.AUDIO.tech newsgroup. If "Curious" were asking about VIDEO cassettes, he/she would have surely responded to at least ONE of the three different messages asking for clarification of the question. I believe that you have made an unwarranted assumption, and that you have not explicitly stated the assumption to "Curious", and that you are unintentionally misleading him/her. |
#15
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. Actually the original question says NOTHING about "video". Read the Subject line again. It says "Audio Cassettes" on my server. You assumed "video" in your response, but "Curious" never (visibly) confirmed that is what he/she is asking about. I still insist that there is NO SUCH THING as "FM recording on *Audio* Cassettes" unless we are tallking about some obscure laboratory experiment. |
#16
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. Actually the original question says NOTHING about "video". Read the Subject line again. It says "Audio Cassettes" on my server. You assumed "video" in your response, but "Curious" never (visibly) confirmed that is what he/she is asking about. I still insist that there is NO SUCH THING as "FM recording on *Audio* Cassettes" unless we are tallking about some obscure laboratory experiment. |
#17
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FM recording on Audio Cassettes
"Peter Larsen" wrote ...
A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. Actually the original question says NOTHING about "video". Read the Subject line again. It says "Audio Cassettes" on my server. You assumed "video" in your response, but "Curious" never (visibly) confirmed that is what he/she is asking about. I still insist that there is NO SUCH THING as "FM recording on *Audio* Cassettes" unless we are tallking about some obscure laboratory experiment. |
#18
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FM recording on Audio Cassettes
Richard Crowley wrote:
Curious wrote: How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#19
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FM recording on Audio Cassettes
Richard Crowley wrote:
Curious wrote: How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! A few seconds devoted to reading the original question allows only the option of recording audio on a video recorder as having been considered because of this, so that was what I wrote about. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#20
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FM recording on Audio Cassettes
Curious wrote:
How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! |
#21
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FM recording on Audio Cassettes
Curious wrote:
How would the artifacts differ? Peter Larsen wrote ... Interrupted audio in case of AM recording. "Curious" wrote ... Due to electrical intereference? WHAT ARE YOU TALKING ABOUT??? There IS no "AM" or "FM" recording on "Audio Cassettes"! |
#22
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FM recording on Audio Cassettes
Curious wrote:
Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#23
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FM recording on Audio Cassettes
"Peter Larsen" wrote in message ... Curious wrote: Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. Assuming we are talking about video cassettes (and not "Audio Cassettes" as the OP wrote).... Loss of carrier in FM will ALSO cause interrupted audio. Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") The only thing that saves it (in the case of VHS "Hi-Fi" for example) is that most VCRs will automatically revert back to the linear (baseband) audio track upon loss of FM Hi-Fi carrier. |
#24
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FM recording on Audio Cassettes
"Richard Crowley" wrote in message ...
Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") Would heterodynes affect the audio in "AM cassettes"? |
#25
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FM recording on Audio Cassettes
"Richard Crowley" wrote in message ...
Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") Would heterodynes affect the audio in "AM cassettes"? |
#26
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FM recording on Audio Cassettes
"Richard Crowley" wrote in message ...
Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") Would heterodynes affect the audio in "AM cassettes"? |
#27
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FM recording on Audio Cassettes
"Richard Crowley" wrote in message ...
Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") Would heterodynes affect the audio in "AM cassettes"? |
#28
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FM recording on Audio Cassettes
"Peter Larsen" wrote in message ... Curious wrote: Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. Assuming we are talking about video cassettes (and not "Audio Cassettes" as the OP wrote).... Loss of carrier in FM will ALSO cause interrupted audio. Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") The only thing that saves it (in the case of VHS "Hi-Fi" for example) is that most VCRs will automatically revert back to the linear (baseband) audio track upon loss of FM Hi-Fi carrier. |
#29
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FM recording on Audio Cassettes
"Peter Larsen" wrote in message ... Curious wrote: Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. Assuming we are talking about video cassettes (and not "Audio Cassettes" as the OP wrote).... Loss of carrier in FM will ALSO cause interrupted audio. Some might even say that it is worse because of the nature of FM demodulation when no carrier is present (i.e. "inter-station hiss") The only thing that saves it (in the case of VHS "Hi-Fi" for example) is that most VCRs will automatically revert back to the linear (baseband) audio track upon loss of FM Hi-Fi carrier. |
#30
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FM recording on Audio Cassettes
Curious wrote:
Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#31
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FM recording on Audio Cassettes
Curious wrote:
Peter Larsen wrote in message ... Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? Loss of carrier. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#32
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FM recording on Audio Cassettes
Peter Larsen wrote in message ...
Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? |
#33
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FM recording on Audio Cassettes
Peter Larsen wrote in message ...
Curious wrote: How would the artifacts differ? Interrupted audio in case of AM recording. Due to electrical intereference? |
#34
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FM recording on Audio Cassettes
Curious wrote:
Hi: Why do cassettes use FM recording? Video cassettes CAN use FM recording for audio. Why not AM recording? All the malaises of the AM principle, including the problem of what happens at max negative modulation, i. e. modulation related loss of carrier wave. How would the artifacts differ? Interrupted audio in case of AM recording. Thanks in advance. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#35
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FM recording on Audio Cassettes
Curious wrote:
Hi: Why do cassettes use FM recording? Video cassettes CAN use FM recording for audio. Why not AM recording? All the malaises of the AM principle, including the problem of what happens at max negative modulation, i. e. modulation related loss of carrier wave. How would the artifacts differ? Interrupted audio in case of AM recording. Thanks in advance. -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#37
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FM recording on Audio Cassettes
Rumor has it that a record amp broke into oscillation thus adding a bias to
the audio. I've heard that this "accident" was discovered by B&K. big snip ------------ |
#38
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FM recording on Audio Cassettes
In , on 01/05/04
at 01:22 PM, "bg" said: Rumor has it that a record amp broke into oscillation thus adding a bias to the audio. I've heard that this "accident" was discovered by B&K. Interesting, that would add another country to the list of possible inventors. It also sounds like a reasonable "accident", given that no one understood the fine points of feedback in the 1920's. ----------------------------------------------------------- spam: wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15 13 (Barry Mann) [sorry about the puzzle, spammers are ruining my mailbox] ----------------------------------------------------------- |
#39
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FM recording on Audio Cassettes
Barry Mann wrote:
Interesting, that would add another country to the list of possible inventors. It also sounds like a reasonable "accident", given that no one understood the fine points of feedback in the 1920's. Poulsens problem and thus limitation was that amplifiers, feedback or no feedback, weren't invented yet. -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#40
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FM recording on Audio Cassettes
Barry Mann wrote:
Interesting, that would add another country to the list of possible inventors. It also sounds like a reasonable "accident", given that no one understood the fine points of feedback in the 1920's. Poulsens problem and thus limitation was that amplifiers, feedback or no feedback, weren't invented yet. -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
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