compress the orchestra

I’ve seen machine learning demos where you train the network on a large number of similar songs and it generates semi-plausible examples of new songs.  I bet the AI community could cook something up that would create piano music from an orchestral arrangement.  

Bob

radams2000@gmail.com writes:

> I’ve seen machine learning demos where you train the network on a
> large number of similar songs and it generates semi-plausible examples
> of new songs. I bet the AI community could cook something up that
> would create piano music from an orchestral arrangement.

I'll bet you're right and I bet 90 percent of the public would be happy
with that. But the 10 percent who had half a musical ear would hate it,
just like they hate lossy codecs.
-- 
Randy Yates, DSP/Embedded Firmware Developer
Digital Signal Labs
http://www.digitalsignallabs.com

Randy Yates <yates@digitalsignallabs.com> writes:

> radams2000@gmail.com writes:
>
>> I&rsquo;ve seen machine learning demos where you train the network on a
>> large number of similar songs and it generates semi-plausible examples
>> of new songs. I bet the AI community could cook something up that
>> would create piano music from an orchestral arrangement.
>
> I'll bet you're right and I bet 90 percent of the public would be happy
> with that. But the 10 percent who had half a musical ear would hate it,
> just like they hate lossy codecs.

I'm on the fence with Sirius XM (just got a trial subscription a couple
months back). There are distinct times when the compression sounds like
&^$*%, but the selection sure is nice.
-- 
Randy Yates, DSP/Embedded Firmware Developer
Digital Signal Labs
http://www.digitalsignallabs.com

Randy Yates  <yates@digitalsignallabs.com> wrote:

>I'm on the fence with Sirius XM (just got a trial subscription a couple
>months back). There are distinct times when the compression sounds like
>&^$*%, but the selection sure is nice.

Sirius FM is designed to be listened to in vehicles, where you need/want
to listene to a compressed signal.  ("Compressed" in the sense of, 
listening though a compander set for compression, not in the sense of 
bit-rate compression.)

Do they not have an uncompressed option for residential users?

Steve

spope384@gmail.com (Steve Pope) writes:

> Randy Yates  <yates@digitalsignallabs.com> wrote:
>
>>I'm on the fence with Sirius XM (just got a trial subscription a couple
>>months back). There are distinct times when the compression sounds like
>>&^$*%, but the selection sure is nice.
>
> Sirius FM is designed to be listened to in vehicles, where you need/want
> to listene to a compressed signal.  ("Compressed" in the sense of, 
> listening though a compander set for compression, not in the sense of 
> bit-rate compression.)
>
> Do they not have an uncompressed option for residential users?
>
> Steve

Steve,

I was referring to vehicle listening, and compression in the sense of
lossy signal source compression, not dynamic range compression. While it
may be a necessary evil, that is not something I or anyone else really
wants, but I think most people now just put up with it, or don't even
notice it due to years of this becoming the "norm."
-- 
Randy Yates, DSP/Embedded Firmware Developer
Digital Signal Labs
http://www.digitalsignallabs.com

On Sun, 3 Nov 2019 17:14:20 +0000 (UTC), spope384@gmail.com (Steve
Pope) wrote:

>Randy Yates  <yates@digitalsignallabs.com> wrote:
>
>>I'm on the fence with Sirius XM (just got a trial subscription a couple
>>months back). There are distinct times when the compression sounds like
>>&^$*%, but the selection sure is nice.
>
>Sirius FM is designed to be listened to in vehicles, where you need/want
>to listene to a compressed signal.  ("Compressed" in the sense of, 
>listening though a compander set for compression, not in the sense of 
>bit-rate compression.)
>
>Do they not have an uncompressed option for residential users?
>
>Steve

They have a ton of channels now that aren't broadcast, but available
streaming on-line only.   I think some of them may be free to
non-subscribers, but you can check on their website if interested.

I've no idea what level of compression they apply or don't to the
on-line streaming stuff, but I'd be surprised if they ever send
uncompressed content just because it would be a waste of BW.

Eric Jacobsen <theman@ericjacobsen.org> wrote:

>>Sirius FM is designed to be listened to in vehicles, where you need/want
>>to listene to a compressed signal.  ("Compressed" in the sense of, 
>>listening though a compander set for compression, not in the sense of 
>>bit-rate compression.)

>>Do they not have an uncompressed option for residential users?

>They have a ton of channels now that aren't broadcast, but available
>streaming on-line only.   I think some of them may be free to
>non-subscribers, but you can check on their website if interested.
>
>I've no idea what level of compression they apply or don't to the
>on-line streaming stuff, but I'd be surprised if they ever send
>uncompressed content just because it would be a waste of BW.

I may not have been clear but -- "compressed" in that the audio is
possibly compressed, not in that the bit-stream is compressed (which
it clearly must be).

Steve

On Mon, 11 Nov 2019 18:34:13 +0000 (UTC), spope384@gmail.com (Steve
Pope) wrote:

>Eric Jacobsen <theman@ericjacobsen.org> wrote:
>
>>>Sirius FM is designed to be listened to in vehicles, where you need/want
>>>to listene to a compressed signal.  ("Compressed" in the sense of, 
>>>listening though a compander set for compression, not in the sense of 
>>>bit-rate compression.)
>
>>>Do they not have an uncompressed option for residential users?
>
>>They have a ton of channels now that aren't broadcast, but available
>>streaming on-line only.   I think some of them may be free to
>>non-subscribers, but you can check on their website if interested.
>>
>>I've no idea what level of compression they apply or don't to the
>>on-line streaming stuff, but I'd be surprised if they ever send
>>uncompressed content just because it would be a waste of BW.
>
>I may not have been clear but -- "compressed" in that the audio is
>possibly compressed, not in that the bit-stream is compressed (which
>it clearly must be).
>
>Steve

If transmitting to different devices I don't know why that wouldn't
just be handled at the terminal device.   Keeping the dgitized signal
linear allows use at any device with a little bit of processing at the
device to suit that device or installation.   Not sure why companding
would be distributed in a digital transmission.

Eric Jacobsen <theman@ericjacobsen.org> wrote:

>If transmitting to different devices I don't know why that wouldn't
>just be handled at the terminal device.   Keeping the dgitized signal
>linear allows use at any device with a little bit of processing at the
>device to suit that device or installation.   Not sure why companding
>would be distributed in a digital transmission.

Certainly.  OP had compained about the "compressed" audio though...
worth disambiguating what was going on.

Steve

Steve Pope <spope384@gmail.com> wrote:

>Eric Jacobsen <theman@ericjacobsen.org> wrote:

>>If transmitting to different devices I don't know why that wouldn't
>>just be handled at the terminal device.   Keeping the dgitized signal
>>linear allows use at any device with a little bit of processing at the
>>device to suit that device or installation.   Not sure why companding
>>would be distributed in a digital transmission.

>Certainly.  OP had compained about the "compressed" audio though...
>worth disambiguating what was going on.

Another aspect - companding at the endpoint may not be sufficient.

"Radio ready" mixes are often not simply compressed, but tweaked to 
the source material by engineers.

https://www.sageaudio.com/blog/pre-mastering-tips/mixing-radio.php


Steve