I’ve just put the “Introduction” section of my video course up on the
website as a kind of “video on demand” trail. If someone could try
it and let me know, that would be great. You should be able to
find it and operate it easily, if not, let me know.
Audio speed may be a problem; anyone have an MP3 compressor available
for QNX 4 or 6?
Thanks,
-RK
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
I’ve just put the “Introduction” section of my video course up on the
website as a kind of “video on demand” trail. If someone could try
it and let me know, that would be great. You should be able to
find it and operate it easily, if not, let me know.
Audio speed may be a problem; anyone have an MP3 compressor available
for QNX 4 or 6?
I remember recompiling bladenc for QNX4 a while ago. It was an easy port.
“video on demand” stuff worked great for me.
Any QSSL is now QSS (so I’m told)
Thanks,
-RK
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at > www.parse.com> .
Email my initials at parse dot com.
I’ve just put the “Introduction” section of my video course up on the
website as a kind of “video on demand” trail. If someone could try
it and let me know, that would be great. You should be able to
find it and operate it easily, if not, let me know.
Audio speed may be a problem; anyone have an MP3 compressor available
for QNX 4 or 6?
I remember recompiling bladenc for QNX4 a while ago. It was an easy port.
I found something on the web; wasn’t too bad of a port to QNX 6 – took about
10 minutes I got the file sizes down from 48kHz @ 16 bits to 64kbits/second
mono; much faster and smaller!
“video on demand” stuff worked great for me.
Great! How many copies can I sign you up for?
Any QSSL is now QSS (so I’m told)
Sigh
Cheers,
-RK
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
I’ve just put the “Introduction” section of my video course up on the
website as a kind of “video on demand” trail. If someone could try
it and let me know, that would be great. You should be able to
find it and operate it easily, if not, let me know.
Audio speed may be a problem; anyone have an MP3 compressor available
for QNX 4 or 6?
Hi Robert,
Look at http://www2.arnes.si/~mmilut/
There is blade encoder for many platforms at this place and for QNXRTP, by the way. Blade
encoder is a good high quality ISO based MP3 encoder. It encodes a bit slower than XING’s, for
instance, but I like it for quality. (I didn’t rebuild it under 6.2 yet because I hadn’t installed
6.2). Let me know if there is some problem with QRTP binary http://www2.arnes.si/~mmilut/BEnc-0942-QNXRTP6.1a-i586.tar.gz
(this archive seems to be rebuilt by that site owner… hm, interesting which new nonsens is added
to archive )
Cheers,
I’ve just put the “Introduction” section of my video course up on the
website as a kind of “video on demand” trail. If someone could try
it and let me know, that would be great. You should be able to
find it and operate it easily, if not, let me know.
Audio speed may be a problem; anyone have an MP3 compressor available
for QNX 4 or 6?
Hi Robert,
Look at http://www2.arnes.si/~mmilut/
There is blade encoder for many platforms at this place > > and for QNXRTP, by the way. Blade
encoder is a good high quality ISO based MP3 encoder. It encodes a bit slower than XING’s, for
instance, but I like it for quality. (I didn’t rebuild it under 6.2 yet because I hadn’t installed
6.2). Let me know if there is some problem with QRTP binary > http://www2.arnes.si/~mmilut/BEnc-0942-QNXRTP6.1a-i586.tar.gz
(this archive seems to be rebuilt by that site owner… hm, interesting which new nonsens is added
to archive > > )
Cheers,
Eduard.
Thanks for the info! I’ll have to compare that against the one I ported to see which
one has better “quality”…
Cheers,
-RK
\
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
Thanks for the info! I’ll have to compare that against the one I ported to see which
one has better “quality”…
Just curiosity, what’s the name of that one you’ve ported? Keep in mind, when I said quality I
mainly meant the “CD quality” of music, not speach There is a lot of speach oriented codecs,
but I don’t know any which is free From MP3 area, I like also Lame. It’s good and fast encoder,
and it supports VBR encoding (variable bit rate, sometimes it’s not such bad as people think ).
Cheers,
Eduard.
ed1k at ukr dot net
Cheers,
-RK
\
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at > www.parse.com> .
Email my initials at parse dot com.
Thanks for the info! I’ll have to compare that against the one I ported to see which
one has better “quality”…
Just curiosity, what’s the name of that one you’ve ported? Keep in mind, when I said quality I
mainly meant the “CD quality” of music, not speach > > There is a lot of speach oriented codecs,
but I don’t know any which is free > > From MP3 area, I like also Lame. It’s good and fast encoder,
and it supports VBR encoding (variable bit rate, sometimes it’s not such bad as people think > > ).
Cheers,
Eduard.
ed1k at ukr dot net
Dunno, just found it “out of the blue” (well, “out of google” would be more correct).
Here’s an excerpt of the readme:
This is an optimized version of the IIS reference mpeg layer 3 encoder.
The optimizations were made by Andreas Johansson.
The encoder reads wav files or raw PCM files and produces mpeg player 3
files. Right now joint-stereo or psychoachoustic model 1 are not
supported with layer 3. To encode the file audio.wav to a 128kbit/s mpeg
layer 3 file called audio.mp3, use this command line:
encode audio.wav audio.mp3
Use the software at your own risk.
The most recent version of this software is available via ftp at:
wopr.campus.luth.se:/pub/mpeg_layer_3
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at > www.parse.com> .
Email my initials at parse dot com.
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
Perhaps I saw this encoder. Don’t remember why I dislike it
I used 64kbps mono and the speech comes out fine;
$ bladeenc -mono -64 01-01.wav 01-01.mp3
or put those options (-dm -64) in /home/rk/.bladeencrc file,
if you have stereo @48Khz samplerate.
BTW it’s not something bad to reduce the samplerate for speach (are you able to prononce 24 kHz
noise ) I would use MPEG 2 layer 3 @16 kHz (or 22.05 kHz), but from my collection of encodecs
only lame can produce such stream Bladeenc supports only MPEG 1 Layer 3 (32, 44.1, 48 kHz
samplerates), I believe.
I’m unable Sys admin disabled to download *.mp3 through our proxy I got “Access denied”
when click on replay (could you send me by email few frames for taste?) But rest of stuff
(except sound) look nice. There is only big header, I have to scroll every next page to see picture
and navigation bar (I see you rebuilt it, nice slide viewer )
Cheers,
Perhaps I saw this encoder. Don’t remember why I dislike it >
I used 64kbps mono and the speech comes out fine;
$ bladeenc -mono -64 01-01.wav 01-01.mp3
or put those options (-dm -64) in /home/rk/.bladeencrc file,
if you have stereo @48Khz samplerate.
BTW it’s not something bad to reduce the samplerate for speach (are you able to prononce 24 kHz
noise > > ) I would use MPEG 2 layer 3 @16 kHz (or 22.05 kHz), but from my collection of encodecs
only lame can produce such stream > > Bladeenc supports only MPEG 1 Layer 3 (32, 44.1, 48 kHz
samplerates), I believe.
I figured 64kbps was good, but I’m willing to try 32kbps. My “quandry” is that I don’t
want to reduce the quality too much because I’m planning on selling this on a CD (the
full course). Thus, at 64kbps and the amount of graphics I have, I’m expecting 200 MB.
I could even raise the quality for the CD.
I’m unable > > Sys admin disabled to download *.mp3 through our proxy > > I got “Access denied”
when click on replay > > (could you send me by email few frames for taste?) But rest of stuff
(except sound) look nice. There is only big header, I have to scroll every next page to see picture
and navigation bar (I see you rebuilt it, nice slide viewer > > )
I’ll pack up a few of the .mp3 files for you.
(I thought it was odd that this vostok.net guy was only grabbing the .html and .jpg )
Cheers,
-RK
Cheers,
Eduard.
ed1k at ukr dot net
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
I figured 64kbps was good, but I’m willing to try 32kbps. My “quandry” is that I don’t
want to reduce the quality too much because I’m planning on selling this on a CD (the
full course). Thus, at 64kbps and the amount of graphics I have, I’m expecting 200 MB.
I could even raise the quality for the CD.
You will have the better quality with the same 64 kbit per sec bitrate of mpeg when you reduce the
sample rate. Don’t you? It only means the allowed width of spectrum will 8 kHz or 11 kHz, also
there will slower input stream and, as result, there will less compression with the same bitrate of
output stream. 48 kHz samlerate for speach, it’s too fast IMHO. But if you are able to whistle at
20 kHz, then you’re right, 40 kHz sample rate required at least.
Now the web is a different thing >
Yes, it’s a big trash But there are some useful things on the web
I figured 64kbps was good, but I’m willing to try 32kbps. My “quandry” is that I don’t
want to reduce the quality too much because I’m planning on selling this on a CD (the
full course). Thus, at 64kbps and the amount of graphics I have, I’m expecting 200 MB.
I could even raise the quality for the CD.
You will have the better quality with the same 64 kbit per sec bitrate of mpeg when you reduce the
sample rate. Don’t you? It only means the allowed width of spectrum will 8 kHz or 11 kHz, also
there will slower input stream and, as result, there will less compression with the same bitrate of
output stream. 48 kHz samlerate for speach, it’s too fast IMHO. But if you are able to whistle at
20 kHz, then you’re right, 40 kHz sample rate required at least.
Dunno, it all sounds the same to me I’ll look at it.
Now the web is a different thing >
Yes, it’s a big trash > > But there are some useful things on the web >
Thanks, only few mp3’s. Don’t pack them (uueencoder will do it), mp3’s are packed very bad as a
rule >
Yup; sent 1/2 MB.
(I thought it was odd that this vostok.net guy was only grabbing the .html and .jpg > > )
Sorry, our corporate sysadmin disabled. Vostok’s guys don’t care about it, it’s their money, than
bigest mp3 I dowloaded than more money they get >
–
Eduard.
ed1k at ukr dot net
–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Books, Video-based and Instructor-led
Training and Consulting at www.parse.com.
Email my initials at parse dot com.
I work with pro audio. You want to use a sample rate that is high enough
for the highest frequency that you want to capture. The generally accepted
cut-off frequency is 41-44% of the sample rate. I.E. 48 KHz sample rate
should catch 20 Khz audio. Use the lowest sample rate that will work for
whatever frequency you want to capture. Your bits are better spend on not
having to compress.
BTW, if you could whistle at 20 KHz I and many other people couldn’t hear
you. SO why bother recording it. OTOH, if you are recording a symphony
orchestra you’ll want to catch all the detail even if YOU can’t hear it.
“ed1k” <ed1k@spamerstrap.com> wrote in message
news:01c229b1$e199d2e0$106fa8c0@ED1K…
I figured 64kbps was good, but I’m willing to try 32kbps. My “quandry”
is that I don’t
want to reduce the quality too much because I’m planning on selling this
on a CD (the
full course). Thus, at 64kbps and the amount of graphics I have, I’m
expecting 200 MB.
I could even raise the quality for the CD.
You will have the better quality with the same 64 kbit per sec bitrate of
mpeg when you reduce the
sample rate. Don’t you? It only means the allowed width of spectrum will 8
kHz or 11 kHz, also
there will slower input stream and, as result, there will less compression
with the same bitrate of
output stream. 48 kHz samlerate for speach, it’s too fast IMHO. But if you
are able to whistle at
20 kHz, then you’re right, 40 kHz sample rate required at least.
Now the web is a different thing >
Yes, it’s a big trash > > But there are some useful things on the web >
BTW, if you could whistle at 20 KHz I and many other people couldn’t hear
you. SO why bother recording it.
It could be firm’s stamp, the sign of the original audio quality Dog could help recognize this
sign for you Do you remember such funny trick made by Beatles?
Cheers.
I got the file sizes down from 48kHz @ 16 bits to 64kbits/second
and for QNXRTP, by the way. Blade
From MP3 area, I like also Lame. It’s good and fast encoder,