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#1
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Posted to rec.audio.pro
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I've been asked to explain bit rate versus sample rate to a
non-technical audience. Can anyone think of a good *analogy* to help explain the difference? |
#2
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Posted to rec.audio.pro
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On 16/05/2019 12:09, mcp6453 wrote:
I've been asked to explain bit rate versus sample rate to a non-technical audience. Can anyone think of a good *analogy* to help explain the difference? Bit rate is the total number of people in cars (Or buses) passing a point on the road per unit of time. Sample rate is the number of cars (or buses) passing the same point in the same time. Sample depth is the number of seats in each car or bus. Not perfect,but probably close enough. -- Tciao for Now! John. |
#3
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Posted to rec.audio.pro
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On Thursday, May 16, 2019 at 8:45:44 AM UTC-4, John Williamson wrote:
Bit rate is the total number of people in cars (Or buses) passing a point on the road per unit of time. Sample rate is the number of cars (or buses) passing the same point in the same time. Sample depth is the number of seats in each car or bus. Not perfect,but probably close enough. -- Tciao for Now! John. NIce one, John! And BOTH are vitally important. Also, you can not restore lost information, so rolling an audio cassette into a 16-bit, 44.1kHz (that's the spec for CD) session does not transform that cassette audio into CD quality audio. It's just cassette audio in a CD wrapper. |
#4
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Posted to rec.audio.pro
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On 16/05/2019 15:08, Ty Ford wrote:
On Thursday, May 16, 2019 at 8:45:44 AM UTC-4, John Williamson wrote: Bit rate is the total number of people in cars (Or buses) passing a point on the road per unit of time. Sample rate is the number of cars (or buses) passing the same point in the same time. Sample depth is the number of seats in each car or bus. Not perfect,but probably close enough. -- Tciao for Now! John. NIce one, John! And BOTH are vitally important. Also, you can not restore lost information, so rolling an audio cassette into a 16-bit, 44.1kHz (that's the spec for CD) session does not transform that cassette audio into CD quality audio. It's just cassette audio in a CD wrapper. Lots of empty seats in the buses? -- Tciao for Now! John. |
#5
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Posted to rec.audio.pro
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On 17/05/2019 8:30 AM, John Williamson wrote:
On 16/05/2019 15:08, Ty Ford wrote: On Thursday, May 16, 2019 at 8:45:44 AM UTC-4, John Williamson wrote: Bit rate is the total number ofÂ* people in cars (Or buses) passing a point on the road per unit of time. Sample rate is the number of cars (or buses) passing the same point in the same time. Sample depth is the number of seats in each car or bus. Not perfect,but probably close enough. -- Tciao for Now! John. NIce one, John! And BOTH are vitally important. Also, you can not restore lost information, so rolling an audio cassette into a 16-bit, 44.1kHz (that's the spec for CD) session does not transform that cassette audio into CD quality audio. It's just cassette audio in a CD wrapper. Lots of empty seats in the buses? Hopefully, otherwise how would you represent the zeros in a binary word. geoff |
#6
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Posted to rec.audio.pro
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Lots of empty seats in the buses?
Hopefully, otherwise how would you represent the zeros inÂ* a binary word. geoff Here we go with numberism again. Zeros are bus riders like any other numeric values. I suppose you want them to sit in the back. |
#7
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Posted to rec.audio.pro
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"Bit depth" is a meaningless term that was invented because somebody
didn't think that consumers could understand "sample rate" and "word length." Creeping meatballism rules! |
#8
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Posted to rec.audio.pro
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On 17/05/2019 2:08 AM, Ty Ford wrote:
On Thursday, May 16, 2019 at 8:45:44 AM UTC-4, John Williamson wrote: Bit rate is the total number of people in cars (Or buses) passing a point on the road per unit of time. Sample rate is the number of cars (or buses) passing the same point in the same time. Sample depth is the number of seats in each car or bus. Not perfect,but probably close enough. -- Tciao for Now! John. NIce one, John! And BOTH are vitally important. Also, you can not restore lost information, so rolling an audio cassette into a 16-bit, 44.1kHz (that's the spec for CD) session does not transform that cassette audio into CD quality audio. It's just cassette audio in a CD wrapper. Or the very best of vinyl into 44k1/16 for that matter. geoff |
#9
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Posted to rec.audio.pro
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John Williamson: "sample depth"..??
First time I ever head of that. Are you sure you didn't mean BIT depth? Even my cats know what that is lol! |
#11
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Posted to rec.audio.pro
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geoff wrote: "Bit depth of the sample. Pretty straightforward. What a limited
understanding-depth your cats have. geoff " I've read up on the fundamentals of digital audio on many websites, viewed endless YouTubes on the subject, and not once was mentioned the term "sample depth". I guess they all don't know what they're talking about. Learn something new every day I guess! |
#12
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Posted to rec.audio.pro
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Theckmaah theckmahh @ tardsRus . org wrote in message
... I've read up on the fundamentals of digital audio on many websites, And obviously, didn't understand a word of it. I guess they all don't know what they're talking about. No, you're the one who doesnt know what you're talking about, and you just love to prove that, don't you, li'l buddy? Learn something new every day I guess! Not you, theckmah. You refuse to learn. As you keep proving. HTH. FCKWFDF! |
#13
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Posted to rec.audio.pro
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mcp6453 wrote:
I've been asked to explain bit rate versus sample rate to a non-technical audience. Can anyone think of a good *analogy* to help explain the difference? Sample rate is an indication of bandwidth (it is twice the bandwidth). Word length is an indication of dynamic range (each bit doubles the range). For uncompressed data, bit rate is the sample rate times the word rate times the number of channels. Once you start talking about compressed audio, all bets are off. But literally, bit rate is how much data you can fit through the hose. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#14
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mcp6453 wrote:
I've been asked to explain bit rate versus sample rate to a non-technical audience. Can anyone think of a good *analogy* to help explain the difference? Sample rate is how often you look at the waveform to update your measurements of it. Bit rate is how much information youre sending, and it is a combination of sample rate (how often you measure it), sample depth (how accurately you measure it) and compression ratio (how much information youre willing to throw away). |
#15
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Posted to rec.audio.pro
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On 16/05/2019 11:09 PM, mcp6453 wrote:
I've been asked to explain bit rate versus sample rate to a non-technical audience. Can anyone think of a good *analogy* to help explain the difference? Sample-rate is a solid figure based on double the highest frequency to be sampled. Bit-rate in linear systems (LPCM) is the sample rate multiplied by the bit depth. In non-linear systems the bit rate is the rate of digital data being delivered, however this has no relationship to that of LPCM other that lower bit rates equate to lower fidelity.... the exception being where lossless data compression has been applied, which although being a bit-rate lower than the equivalent spec LPCM, should have bit-identical output. geoff |
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