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#121
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Power conversion. (was "Opposite of Mu-law?")
Karl Uppiano wrote:
"Jerry Avins" wrote in message ... Steve Underwood wrote: Hi Jerry, Jerry Avins wrote in message ... No DAC I'm aware of can provide enough power to drive a loudspeaker. You need an analog amplifier between a DAC and the speaker. If you don't have one now, that's your problem. How would you classify the new generation class D amps that go straight from 16/24 bit audio to the speaker terminals? The only digital to analogue conversion in those is right at the speaker. Regards, Steve What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? PWM is analog. The fact that it's switched confuses a lot of people. The pulse width is an analog quantity. The fact that distinction between digital and analog can be blurred just underscores the similarity of the two technologies in terms of mathematical signal analysis. Thank you for putting what I meant into better words. Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#122
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Power conversion. (was "Opposite of Mu-law?")
Randy Yates wrote:
Allan Herriman writes: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: Steve Underwood wrote: Hi Jerry, Jerry Avins wrote in message ... No DAC I'm aware of can provide enough power to drive a loudspeaker. You need an analog amplifier between a DAC and the speaker. If you don't have one now, that's your problem. How would you classify the new generation class D amps that go straight from 16/24 bit audio to the speaker terminals? The only digital to analogue conversion in those is right at the speaker. Regards, Steve What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? http://www.audioholics.com/techtips/...mplifiers.html I stopped reading when I got to the part where he stated an amplifier was "transparent but not neutral". What B.S. You almost got to the end then. Esoteric jargon naturally develops around any specialized field. By "naturally", I mean that it seems to be a law of nature. Case in point: all that oenophile crapola. How can something you pour be dry? (Don't give me a hard time over pouring powder. Something with surface tension, then.) Music: ethereal? I think the author means something, and others in his line of work know what it is. He's just not addressing the likes of us. Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#123
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Power conversion. (was "Opposite of Mu-law?")
Randy Yates wrote:
Allan Herriman writes: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: Steve Underwood wrote: Hi Jerry, Jerry Avins wrote in message ... No DAC I'm aware of can provide enough power to drive a loudspeaker. You need an analog amplifier between a DAC and the speaker. If you don't have one now, that's your problem. How would you classify the new generation class D amps that go straight from 16/24 bit audio to the speaker terminals? The only digital to analogue conversion in those is right at the speaker. Regards, Steve What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? http://www.audioholics.com/techtips/...mplifiers.html I stopped reading when I got to the part where he stated an amplifier was "transparent but not neutral". What B.S. You almost got to the end then. Esoteric jargon naturally develops around any specialized field. By "naturally", I mean that it seems to be a law of nature. Case in point: all that oenophile crapola. How can something you pour be dry? (Don't give me a hard time over pouring powder. Something with surface tension, then.) Music: ethereal? I think the author means something, and others in his line of work know what it is. He's just not addressing the likes of us. Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#124
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Power conversion. (was "Opposite of Mu-law?")
Randy Yates wrote:
Allan Herriman writes: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: Steve Underwood wrote: Hi Jerry, Jerry Avins wrote in message ... No DAC I'm aware of can provide enough power to drive a loudspeaker. You need an analog amplifier between a DAC and the speaker. If you don't have one now, that's your problem. How would you classify the new generation class D amps that go straight from 16/24 bit audio to the speaker terminals? The only digital to analogue conversion in those is right at the speaker. Regards, Steve What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? http://www.audioholics.com/techtips/...mplifiers.html I stopped reading when I got to the part where he stated an amplifier was "transparent but not neutral". What B.S. You almost got to the end then. Esoteric jargon naturally develops around any specialized field. By "naturally", I mean that it seems to be a law of nature. Case in point: all that oenophile crapola. How can something you pour be dry? (Don't give me a hard time over pouring powder. Something with surface tension, then.) Music: ethereal? I think the author means something, and others in his line of work know what it is. He's just not addressing the likes of us. Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#125
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Power conversion. (was "Opposite of Mu-law?")
Randy Yates wrote:
Allan Herriman writes: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: Steve Underwood wrote: Hi Jerry, Jerry Avins wrote in message ... No DAC I'm aware of can provide enough power to drive a loudspeaker. You need an analog amplifier between a DAC and the speaker. If you don't have one now, that's your problem. How would you classify the new generation class D amps that go straight from 16/24 bit audio to the speaker terminals? The only digital to analogue conversion in those is right at the speaker. Regards, Steve What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? http://www.audioholics.com/techtips/...mplifiers.html I stopped reading when I got to the part where he stated an amplifier was "transparent but not neutral". What B.S. You almost got to the end then. Esoteric jargon naturally develops around any specialized field. By "naturally", I mean that it seems to be a law of nature. Case in point: all that oenophile crapola. How can something you pour be dry? (Don't give me a hard time over pouring powder. Something with surface tension, then.) Music: ethereal? I think the author means something, and others in his line of work know what it is. He's just not addressing the likes of us. Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#126
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Power conversion. (was "Opposite of Mu-law?")
On Tue, 25 May 2004 01:15:14 +1000, Allan Herriman
wrote: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? I would suspect the PCM gets converted/"up-sampled" with an all-digital sigma-delta implementation to a single-bit high-sample-rate (in the MHz range) PCM bitstream (which is not the same as PWM, though the hardware from the digital output to the speaker may be the same). http://www.audioholics.com/techtips/...mplifiers.html That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf Have a look at some parts: http://focus.ti.com/docs/search/vpar...e&templateId=3 This is TI's standard "Class D" parts they've been offering for a few years, and it appears none of them have digital input. Regards, Allan. ----- http://mindspring.com/~benbradley |
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#127
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Power conversion. (was "Opposite of Mu-law?")
On Tue, 25 May 2004 01:15:14 +1000, Allan Herriman
wrote: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? I would suspect the PCM gets converted/"up-sampled" with an all-digital sigma-delta implementation to a single-bit high-sample-rate (in the MHz range) PCM bitstream (which is not the same as PWM, though the hardware from the digital output to the speaker may be the same). http://www.audioholics.com/techtips/...mplifiers.html That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf Have a look at some parts: http://focus.ti.com/docs/search/vpar...e&templateId=3 This is TI's standard "Class D" parts they've been offering for a few years, and it appears none of them have digital input. Regards, Allan. ----- http://mindspring.com/~benbradley |
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#128
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Power conversion. (was "Opposite of Mu-law?")
On Tue, 25 May 2004 01:15:14 +1000, Allan Herriman
wrote: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? I would suspect the PCM gets converted/"up-sampled" with an all-digital sigma-delta implementation to a single-bit high-sample-rate (in the MHz range) PCM bitstream (which is not the same as PWM, though the hardware from the digital output to the speaker may be the same). http://www.audioholics.com/techtips/...mplifiers.html That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf Have a look at some parts: http://focus.ti.com/docs/search/vpar...e&templateId=3 This is TI's standard "Class D" parts they've been offering for a few years, and it appears none of them have digital input. Regards, Allan. ----- http://mindspring.com/~benbradley |
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#129
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Power conversion. (was "Opposite of Mu-law?")
On Tue, 25 May 2004 01:15:14 +1000, Allan Herriman
wrote: On Mon, 24 May 2004 10:39:25 -0400, Jerry Avins wrote: What I surmise is that PCM is converted to a variety of PWM. I call that conversion to analog. The high power comes later. The input is signed binary; the output is bipolar. What you refer to as A/D conversion in the loudspeaker I call low-pass filtering. Maybe my notion of how the device works is entirely wrong. Where can I read about it? I would suspect the PCM gets converted/"up-sampled" with an all-digital sigma-delta implementation to a single-bit high-sample-rate (in the MHz range) PCM bitstream (which is not the same as PWM, though the hardware from the digital output to the speaker may be the same). http://www.audioholics.com/techtips/...mplifiers.html That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf Have a look at some parts: http://focus.ti.com/docs/search/vpar...e&templateId=3 This is TI's standard "Class D" parts they've been offering for a few years, and it appears none of them have digital input. Regards, Allan. ----- http://mindspring.com/~benbradley |
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#130
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Power conversion. (was "Opposite of Mu-law?")
Ben Bradley wrote:
... That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf ... Thanks for hunting it down. I can see this sub-thread degenerating into an interminable (at any rate, unterminating) argument over the meaning of words. I'll get my licks in early, then run for cover and duck. As far as I'm concerned, converting two's complement binary to PWM is an D-to-A operation, despite the binary nature of the pulses' amplitudes. Properly, "analog" as we use it is a misnomer, as is "digital" when applied to gates and flip-flops. Digital is about numbers, analog is the representation of one quantity as analogous to another, as voltage being an analog of, say, mass. Despite that, we know what we mean by analog and digital and if we don't "mere sandwich"* our terms, we won't get sidetracked. I claim that a box that accepts numbers and provides drive to a voice-coil speaker necessarily does D-to-A conversion. The circuit referred to does it before the H bridge. Jerry _______________________________________________ * When one is famished, nothing is better than a solid meal. A mere sandwich, however, is better than nothing. ABC implies AC. When one is famished, nothing is better than a mere sandwich. -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#131
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Power conversion. (was "Opposite of Mu-law?")
Ben Bradley wrote:
... That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf ... Thanks for hunting it down. I can see this sub-thread degenerating into an interminable (at any rate, unterminating) argument over the meaning of words. I'll get my licks in early, then run for cover and duck. As far as I'm concerned, converting two's complement binary to PWM is an D-to-A operation, despite the binary nature of the pulses' amplitudes. Properly, "analog" as we use it is a misnomer, as is "digital" when applied to gates and flip-flops. Digital is about numbers, analog is the representation of one quantity as analogous to another, as voltage being an analog of, say, mass. Despite that, we know what we mean by analog and digital and if we don't "mere sandwich"* our terms, we won't get sidetracked. I claim that a box that accepts numbers and provides drive to a voice-coil speaker necessarily does D-to-A conversion. The circuit referred to does it before the H bridge. Jerry _______________________________________________ * When one is famished, nothing is better than a solid meal. A mere sandwich, however, is better than nothing. ABC implies AC. When one is famished, nothing is better than a mere sandwich. -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#132
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Power conversion. (was "Opposite of Mu-law?")
Ben Bradley wrote:
... That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf ... Thanks for hunting it down. I can see this sub-thread degenerating into an interminable (at any rate, unterminating) argument over the meaning of words. I'll get my licks in early, then run for cover and duck. As far as I'm concerned, converting two's complement binary to PWM is an D-to-A operation, despite the binary nature of the pulses' amplitudes. Properly, "analog" as we use it is a misnomer, as is "digital" when applied to gates and flip-flops. Digital is about numbers, analog is the representation of one quantity as analogous to another, as voltage being an analog of, say, mass. Despite that, we know what we mean by analog and digital and if we don't "mere sandwich"* our terms, we won't get sidetracked. I claim that a box that accepts numbers and provides drive to a voice-coil speaker necessarily does D-to-A conversion. The circuit referred to does it before the H bridge. Jerry _______________________________________________ * When one is famished, nothing is better than a solid meal. A mere sandwich, however, is better than nothing. ABC implies AC. When one is famished, nothing is better than a mere sandwich. -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#133
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Power conversion. (was "Opposite of Mu-law?")
Ben Bradley wrote:
... That's an "interesting" discussion but doesn't give a clue about the internals of "digitally controlled Class D." Googling found this paper which has some technical meat - it mentions regular PWM, digital-input PWM, and "Direct delta-sigma modulation" that is exactly what I was thinking of:: http://www.chipidea.com/essderc2003/...47_updated.pdf ... Thanks for hunting it down. I can see this sub-thread degenerating into an interminable (at any rate, unterminating) argument over the meaning of words. I'll get my licks in early, then run for cover and duck. As far as I'm concerned, converting two's complement binary to PWM is an D-to-A operation, despite the binary nature of the pulses' amplitudes. Properly, "analog" as we use it is a misnomer, as is "digital" when applied to gates and flip-flops. Digital is about numbers, analog is the representation of one quantity as analogous to another, as voltage being an analog of, say, mass. Despite that, we know what we mean by analog and digital and if we don't "mere sandwich"* our terms, we won't get sidetracked. I claim that a box that accepts numbers and provides drive to a voice-coil speaker necessarily does D-to-A conversion. The circuit referred to does it before the H bridge. Jerry _______________________________________________ * When one is famished, nothing is better than a solid meal. A mere sandwich, however, is better than nothing. ABC implies AC. When one is famished, nothing is better than a mere sandwich. -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ |
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#134
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Original Made in 1999 [ Opposite of Mu-law?]
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#136
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Original Made in 1999 [ Opposite of Mu-law?]
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#137
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Original Made in 1999 [ Opposite of Mu-law?]
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#138
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Opposite of Mu-law?
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#139
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Opposite of Mu-law?
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#141
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Opposite of Mu-law?
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#143
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Original Made in 1999
Reposted because it didn't show up on:
http://groups.google.com/groups?q=cu...sa=N&scoring=d (Curious) wrote in message . com... Ben Bradley wrote in message . .. You may not hear blatant clipping, but I'm sure it doesn't sound as clean as it could have. Go to a used CD store and get a CD or two made 15 years ago (not a recent re-release of music over 15 years old, but where the actual CD was made and sold back then), and compare it to the CD's that are showing clipping. With an older CD, he clip light will rarely if ever come on, and the sound will be cleaner. The song "We Live" was made in 1999. That is the year Bosson made the original recording. Given that this is a pretty recent song, is their a solution to this. Here's more info on "We Live". I have this on the CD. It is a CD single with 4 songs. The info is on the back of the CD case: 1. We Live 3:41 2. We Live (Random Remix) 3:43 3. We Live (Engines Garage Mix)* 4:10 4. Happy 3:22 Produced by Bosson, Thomas Gustafsson & Hugo Lira Mixed by Joakim Styren for 101 Kommunikation at Jam Lab Studio 3 *Remixed by Engine Written by Bosson/Deeno Published by MNW Music/Random Music/Potato Jam/Regatta Original version appears on the forthcoming Bosson album Track 4 Previously Unreleased Artwork and Photography by Pelie Hokengren and Jonas Linell Management: Terry and Anthony Anzaldo/Good Guy Entertainment hollywoodandvine.com Print Copyright 1999 Capitol Records, Inc. Manufactured by Capitol Records, Inc.. 1750 Vine Street, Hollywood, California 90028. All Rights Reserved. Unauthorized Duplication is a Violation of Applicable Laws. Printed in U.S.A. |
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#144
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Original Made in 1999
Reposted because it didn't show up on:
http://groups.google.com/groups?q=cu...sa=N&scoring=d (Curious) wrote in message . com... Ben Bradley wrote in message . .. You may not hear blatant clipping, but I'm sure it doesn't sound as clean as it could have. Go to a used CD store and get a CD or two made 15 years ago (not a recent re-release of music over 15 years old, but where the actual CD was made and sold back then), and compare it to the CD's that are showing clipping. With an older CD, he clip light will rarely if ever come on, and the sound will be cleaner. The song "We Live" was made in 1999. That is the year Bosson made the original recording. Given that this is a pretty recent song, is their a solution to this. Here's more info on "We Live". I have this on the CD. It is a CD single with 4 songs. The info is on the back of the CD case: 1. We Live 3:41 2. We Live (Random Remix) 3:43 3. We Live (Engines Garage Mix)* 4:10 4. Happy 3:22 Produced by Bosson, Thomas Gustafsson & Hugo Lira Mixed by Joakim Styren for 101 Kommunikation at Jam Lab Studio 3 *Remixed by Engine Written by Bosson/Deeno Published by MNW Music/Random Music/Potato Jam/Regatta Original version appears on the forthcoming Bosson album Track 4 Previously Unreleased Artwork and Photography by Pelie Hokengren and Jonas Linell Management: Terry and Anthony Anzaldo/Good Guy Entertainment hollywoodandvine.com Print Copyright 1999 Capitol Records, Inc. Manufactured by Capitol Records, Inc.. 1750 Vine Street, Hollywood, California 90028. All Rights Reserved. Unauthorized Duplication is a Violation of Applicable Laws. Printed in U.S.A. |
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#145
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Opposite of Mu-law?
Curious wrote:
(snip) I want loud music w/out the clipping. I don't like the "red" when I play through my computer software. Clipping has the effect of making me "feel sorry" for the system. It makes the music depressing. I also get the creepy feeling that something in the computer is getting physically damaged because of the clipping. No signs of any damage but the "placebo effect" stresses me out. It is likely that others have explained the right answer to this question, but in many cases dynamic range compression is the right answer. Listening to classical music, which often has a large dynamic range, on a car audio system is one. Between the background road noise and the maximum power available or desirable, the dynamic range may not be enough for some music. In days past, compression/expansion systems like DBX were more popular as noise reduction systems. -- glen |
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#146
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Opposite of Mu-law?
Curious wrote:
(snip) I want loud music w/out the clipping. I don't like the "red" when I play through my computer software. Clipping has the effect of making me "feel sorry" for the system. It makes the music depressing. I also get the creepy feeling that something in the computer is getting physically damaged because of the clipping. No signs of any damage but the "placebo effect" stresses me out. It is likely that others have explained the right answer to this question, but in many cases dynamic range compression is the right answer. Listening to classical music, which often has a large dynamic range, on a car audio system is one. Between the background road noise and the maximum power available or desirable, the dynamic range may not be enough for some music. In days past, compression/expansion systems like DBX were more popular as noise reduction systems. -- glen |
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Opposite of Mu-law?
Curious wrote:
(snip) I want loud music w/out the clipping. I don't like the "red" when I play through my computer software. Clipping has the effect of making me "feel sorry" for the system. It makes the music depressing. I also get the creepy feeling that something in the computer is getting physically damaged because of the clipping. No signs of any damage but the "placebo effect" stresses me out. It is likely that others have explained the right answer to this question, but in many cases dynamic range compression is the right answer. Listening to classical music, which often has a large dynamic range, on a car audio system is one. Between the background road noise and the maximum power available or desirable, the dynamic range may not be enough for some music. In days past, compression/expansion systems like DBX were more popular as noise reduction systems. -- glen |
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