I got ahead of myself. Wavepad won't handle it, but there's a way. I'll check into it and post it.
(Note: if this message is repeated, then there's a problem with google groups. There's no way I could have made a mistake. Otherwise, disregard the parenthetical notation.)
"Michael Black" schrieb im Newsbeitrag news:eqtcip$38q$ snipped-for-privacy@theodyn.ncf.ca... | > Do you know the patent number or expiration date? | >
| > Other codecs more useful? | >
| It's recent enough that nobody should be thinking about what happens | after the patent expires. Poke around here
I don't understand the meaning. If I use the patent entirely for private, it is free! If the patent expires, it is useable (commercially) by everyone.
| | OGG is supposed to be a free alternative, though of course the problem | is that it's not compatible with MP3s, so if you don't get or put | something into OGG format in the first place, you'll have to convert | from MP3s if that's the distribution method, and suffere the losses. | | Some simple searches in obvious places would find useful information.
I don't want to distribute mp3-files. The file would be generated locally by the user of the hardware I plan.
Is ogg a standard every pc can play? Is the ogg algorithm complicated? Is a ready-to-use codec with integrated ogg compress/decompress somewhere available?
regards - Henry
"almo" schrieb im Newsbeitrag news: snipped-for-privacy@a75g2000cwd.googlegroups.com... | > What are you trying to achieve with this mp3 encoder? Do you want to | > go from some other media, CD, or wma, aiff, etc., to plain mp3? If | > so, you can do that right on your PC for free (well...), but you can | > only do it real time, i.e., play the song into the line-in of the | > sound card, then save it as an mp3. It won't to a batch conversion, | > but it'll convert any music source into digital, and save it in any | > format, depending on your software. You can use Wavepad. And the | > Sound Blaster card, and probably all of the others, samples at 48Khz, | > which is higher then CD quality, so your mp3 ends up almost lossless, | > except that mp3 is a lossy compression algorithm, however you can | > specify the bit rate for the amount of compression. | >
| > And don't worry about the mp3 patent. That's owned by Napster, and | > it's only used to protect their music (DRM.) So, unless you're going | > into business to rip their music library, then screw Napster. | > Actually, it was Napster that made me figure a way to get songs off of | > an old mp3 player without having to buy a new subscription to thtm, | > because I was using Napster a couple years ago. I didn't want to have | > to pay them again for stuff I already paid for. | | I got ahead of myself. Wavepad won't handle it, but there's a way. | I'll check into it and post it. | | (Note: if this message is repeated, then there's a problem with | google groups. There's no way I could have made a mistake. | Otherwise, disregard the parenthetical notation.)
Hm. Seems the wrong direction...
I want to use it for the design of an automatic answering machine. And to be useful as an "component" for electronics design it should be scalable and a standard - so it is workable with a simple pc. There is no *must* for mp3. I don't need a copyright scheme, nor high-quality. At the moment mono telephone-quality is enough.
- Henry
-- www.ehydra.dyndns.info
Newsbeitragnews: snipped-for-privacy@a75g2000cwd.googlegroups.com...
scalable and a standard - so it is workable with a simple pc.
Then Ogg-Vorbis is for you.
Michael
On a sunny day (Tue, 13 Feb 2007 20:17:52 +0100) it happened "Henry Kiefer" wrote in :
news:eqrpip$o7t$ snipped-for-privacy@jasen.is-a-geek.org...
Eh, you could buy one of these, and see how they do it:
They say (the pdf) it records in mp3, but I do not have one.
25 hours on a charge, oled display, whatdoyouknow, nice :-)
scalable and a standard - so it is workable with a simple pc.
At the >moment mono telephone-quality is enough.
There are several free solutions for this available for teh Linux OS. I personally record phone like this:
# save mixer1 current state cmix /dev/mixer1 save /root/this1
# set mixer1 levels cmix /dev/mixer1 vol 50 cmix /dev/mixer1 line1 0 cmix /dev/mixer1 mic 0 cmix /dev/mixer1 pcm 0 cmix /dev/mixer1 cd 0 cmix /dev/mixer1 speaker 0 cmix /dev/mixer1 phin 0 cmix /dev/mixer1 phout 0 cmix /dev/mixer1 video 0 cmix /dev/mixer1 rcs line on cmix /dev/mixer1 igain 64 cmix /dev/mixer1 line 50
# record to mp3, ctrl C exits rec -d /dev/dsp1 -r 44100 -c 2 -s w -t raw - | lame -r -s 44.1 -m s -x
- line.mp3
# restore mixer1 original settings cmix /dev/mixer1 load /root/this1
scalable and a standard - so it is workable with a simple pc.
high-quality. At the >moment mono telephone-quality is enough.
Wow, neat... but the operator has to be present to run the script, right?
On a sunny day (14 Feb 2007 08:59:49 -0800) it happened snipped-for-privacy@gmail.com wrote in :
scalable and a standard - so it is workable with a
high-quality. At the >moment mono telephone-quality is
Na, I wrote a voice level activated application too:
Command: xpvox -o | lame -r -s 44100 -m m -x - out.mp3
screenshot: ftp://panteltje.com/pub/xpvox.gif
But this is more for other purposes, there are several real phone answering packages for Linux, some probably using a normal 'voicemodem'. I have the voicemodem on one line input of one mixer.
"Jan Panteltje" schrieb im Newsbeitrag news:equrq3$s14$ snipped-for-privacy@news.datemas.de... | Eh, you could buy one of these, and see how they do it: |
Thanks for your effort. But I see problems converting it into a com device.
regards - Henry
-- www.ehydra.dyndns.info
schrieb im Newsbeitrag news: snipped-for-privacy@h3g2000cwc.googlegroups.com... | On 13 feb, 23:29, "Henry Kiefer" wrote: | > "almo" schrieb | | > I want to use it for the design of an automatic answering machine. | > And to be useful as an "component" for electronics design it should be scalable and a standard - so it is workable with a simple pc. | > There is no *must* for mp3. I don't need a copyright scheme, nor high-quality. At the >moment mono telephone-quality is enough. | | There are several free solutions for this available for teh Linux OS. | I personally record phone like this:
Nice. I will see if I can fit Linux in a small 28-pin device.
regards - Henry
-- www.ehydra.dyndns.info
On a sunny day (Wed, 14 Feb 2007 20:01:29 +0100) it happened "Henry Kiefer" wrote in :
news: snipped-for-privacy@h3g2000cwc.googlegroups.com...
scalable and a standard - so it is workable with a
high-quality. At the >moment mono telephone-quality is
I have lost you here, you mention (see above) 'workable with a PC'. If you have the PC and a voice modem (either external or internal) why bother with something else?
Newsbeitragnews: snipped-for-privacy@a75g2000cwd.googlegroups.com...
|> | > go from some other media, CD, or wma, aiff, etc., to plain mp3? If
scalable and a standard - so it is workable with a simple pc.
At the moment mono telephone-quality is enough.
If you're just doing mono telephone quality, then you can just use a PIC chip like a 12F675 which has a 10-bit A/D, or any of their chips with A/D, but the 675 is dirt cheap and is only a 8-pin DIP. And for telephone quality you really only need 8-bits because the voice bandwidth is 3 Khz, but 8 bits is easier to work with. And then you'd sample at about 6.5 Khz, and store the data in a separate flash memory chip, and you could store plenty of messages in cheap flash memory.
And presto, that's already a wave file. Except you have to add a header to make it a .wav file, and maybe break it into chunks, and you can look up the wave formatting on Google, but basically there's 2 chunks required, a Format Chunk and a Data Chunk, and that's enough for any PC to play it, or do anything with it. It looks like this:
RIFF WAVE Chunk-- groupID = 'RIFF riffType = 'WAVE'
Format Chunk ckID = 'fmt ' Sound Data Chunk ckID = 'data'
And there might be a PIC chip or some other chip with a D/A. I think I saw one somewhere, but I forget. Check PIC Micro, and Atmel,etc. But a D/A chip is easy to hook up.
Hope that helps.
"Jan Panteltje" schrieb im Newsbeitrag news:eqvoi5$gk8$ snipped-for-privacy@news.datemas.de... | >Nice. I will see if I can fit Linux in a small 28-pin device. | | I have lost you here, you mention (see above) 'workable with a PC'. | If you have the PC and a voice modem (either external or internal) | why bother with something else?
The PC is for reading the voice tracks once it is on. The planned hardware is always powered up. It's a small module.
- Henry
-- www.ehydra.dyndns.info
"almo" schrieb im Newsbeitrag news: snipped-for-privacy@m58g2000cwm.googlegroups.com... | If you're just doing mono telephone quality, then you can just use a | PIC chip like a 12F675 which has a 10-bit A/D, or any of their chips | with A/D, but the 675 is dirt cheap and is only a 8-pin DIP. And for | telephone quality you really only need 8-bits because the voice | bandwidth is 3 Khz, but 8 bits is easier to work with. And then you'd | sample at about 6.5 Khz, and store the data in a separate flash memory | chip, and you could store plenty of messages in cheap flash memory. | | And presto, that's already a wave file. Except you have to add a | header to make it a .wav file, and maybe break it into chunks, and you | can look up the wave formatting on Google, but basically there's 2 | chunks required, a Format Chunk and a Data Chunk, and that's enough | for any PC to play it, or do anything with it. It looks like this: | | RIFF WAVE Chunk-- | groupID = 'RIFF | riffType = 'WAVE' | | Format Chunk | ckID = 'fmt ' | Sound Data Chunk | ckID = 'data' | | And there might be a PIC chip or some other chip with a D/A. I think | I saw one somewhere, but I forget. Check PIC Micro, and Atmel,etc. | But a D/A chip is easy to hook up.
Yes. Thanks for youre detailed info.
- Henry
-- www.ehydra.dyndns.info
schrieb im Newsbeitrag news: snipped-for-privacy@h3g2000cwc.googlegroups.com... | Then Ogg-Vorbis is for you. | |
It needs a floating-point unit. Pretty useless for low-end microcontroller.
- Henry
-- www.ehydra.dyndns.info
news:eqrpip$o7t$ snipped-for-privacy@jasen.is-a-geek.org...
no, in any case the date is somewhat regionally variable.
not which you want.
free ones:
ogg-vorbis
flac
pay ones:
wma
Bye. Jasen
I looked pretty good, many to most of the patents are from 1986 to 1992. In most of the industrial world a patent runs for 20 years from date of application, thus these core patants will be dropping like flies for the next 5 years. In the US it is 17 years from the date of grant which is usually 3 to 4 years later, same situation.
-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
Yes, it is FOSS. Almost any PC can play it and the software is free. There are even few tiny mp3 players that can play ogg.
Get the source and judge for yourself, it is free also.
In the sense of being included in readily available (and free) software, yes. If you had to make a plug-in component for some undocumented player software, you are on our own.
-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
Oh. OK. sounds like what you want is the CVSD from a digital telephone style Subscriber-Line-Interface-Circuit (SLIC). Good telephone quality,
56 kbits/s and inexpensive. Most of the patents are from the 1960's though 1980's and all expired.-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
OK. Power up the PC and collect your voice mail.
-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
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