OESF Portables Forum
Everything Else => Sharp Zaurus => Model Specific Forums => Distros, Development, and Model Specific Forums => Archived Forums => Cxx0 General discussions => Topic started by: darkeye on March 17, 2004, 09:58:50 am
-
This is a newbie question, but: is it possible to record audio on the SL-C760?
-
Yes, you use the Voice Recorde App - you will need a microphone, Sharp sells a mic-earphone combo, or some people have reported success with mobile phone mics, or you can talk into the left ear of a stereo headphone (although the sound is a bit poor)
THe C760 only record in mono.
Stu
-
If you play some music whilst you have the microphone plugged in do you stand a chance of blowing it up?
-
uote=\"Grimwiz\"]If you play some music whilst you have th
microphone plugged in do you stand a chance of blowing it up?[/quote]
THe Zaurus or the mic? I hope if anything blows up it will be the mic!
Can\'t honestly tell you, I\'ve only ever used a mic/earphone combo - in that case the sound only came through the earphone.
Stu
-
Doesn\'t actually answer your queston as such but kind of related.
If you plug headphones into the Zaurus, the left earpeice works as a (cheap) microphone, while the right still acts as a speaker.
That is in the voice recorder app of course.
Not sure if that would imply not blowing up a microphone or not.
-
This is more of a software question instead of hardware: Are there other audio recording options for the Zaurus? I\'m looking for something uses any form of compression, whether it be MP3 or Ogg-Vorbis. I want to record 1-2 hours at a time and I\'ll need a compression to do that...
-
Further searching... I just found TkcVox... but it\'s $10. Is there something else out there that\'s free?
Does anyone have some examples of the GSM AMR VOX voice audio codec which they could post here? I couldn\'t find any samples of it on the Internet and I wonder just how good it is...
-
tkcVox works pretty well if all that you are going to do is voice dictation. It takes about 1KB per second of storage space at its highest quality setting. tkcVox has some configuration problems on the Zaurus SL-C760. I had to change the Mic to /dev/dspdefault and the Phone to /dev/dspdefault on my Qtopia-based system. I think that the Mixer setting of /dev/mixer came like that by default. There is a command-line utility for doing MP3 audio recording:
http://unimut.fsk.uni-heidelberg.de/demi/c...prec/index.html (http://unimut.fsk.uni-heidelberg.de/demi/comprec/index.html)
On the C760, you might have to use /dev/dspdefault instead of /dev/dsp1.
-
The comprec_0.02_arm.ipk on the web site that I mentioned is messed up. It seems to assume that you have Python installed. You can extract the shine executable program from the *.ipk by doing the following:
1. Run mv comprec_0.02_arm.ipk comprec.gz
to rename comprec_0.02_arm.ipk to something like comprec.gz
2. Run gunzip comprec.gz
3. Run tar xvf comprec
Step 3 will extract three files, debian-binary, data.tar.gz, and control.tar.gz. The data.tar.gz file contains the executable program, so run:
4. gunzip data.tar.gz
5. tar xvf data.tar
This will create a series of subdirectories under your current directory.
6. su root
7. cp opt/QtPalmtop/bin/shine /usr/local/bin
Note that there is no / in front of opt in step 7. The path in step 7 is a relative path under your current directory.
8. exit to stop being the root user.
The shine program when executed by itself shows you a help screen. The basic way that you use the program is:
shine /dev/dspdefault filename.mp3
I have a Zaurus SL-C760. You might have to use /dev/dsp1 on other models of the Zaurus.
The default sampling rate is 128Kbits/second. You can change the default sampling rate by using the -b command line option, like:
shine -b 64 /dev/dspdefault filename.mp3
I had to press Ctrl C to end the program. The recorded audio sounds a bit low in volume. There is apparently no control to adjust the input gain.
-
Just thought I\'d throw in my 2 cents.
I\'m in a band ( not too good - but fun). I use my 860 to record our jam sessions. I\'ve got an AKAI mic that I plug in and I can easily record 5 hours of music as I have a 256 meg SD card and a 256 Meg CF card.
I use the built in voice recorder app and it works fine. Not studio quality, but good enough to listen to.
This is live music so the dynamic range is large, but even with the volume set low so as to not distort, I can still hear us talking between songs.
The trick is to have the recording frequency set high so that the lows don\'t overpower the highs and keep the volume down so you don\'t get too much distortion.
-
Do you have a link to the AKAI microphone?
-
Do you have a link to the AKAI microphone
its old - bought before the web was born.
Its just a resonable mic that I bought at radio shack. its got a 1/4 inch jack so I have an adaptor to get it down to 1/8th
by the way, a mono jack will short the ground to the unused audio channel. Which doesn't seem to be a problem, but I got an adapter that uses a sterio 1/8th inch jack going to 2 - 1/4 inch jacks - that way the mic only goes to the mic input and leaves the other speaker output alone.
-
Okay, seems it's possible to do some low-medium audio recording (mono, yeah yeah). Anyone got a sound editor running?
-Daniel