Records at high speed

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steve
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Re: Records at high speed

Post by steve » Wed May 21, 2014 4:08 pm

Excellent, all good so far :D

So what exactly are you trying to record? Please be descriptive because I can't see your set-up.
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Ken Coburn
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Re: Records at high speed

Post by Ken Coburn » Wed May 21, 2014 5:09 pm

I am recording LPs. My phono preamp feeds the Line input on my SB Live! soundcard. I have been using this setup for several years, but in the past using Audacity with Windows XP. The problem exists only with the Linux version of Audacity.

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Re: Records at high speed

Post by steve » Wed May 21, 2014 5:28 pm

Ken Coburn wrote:I am recording LPs. My phono preamp feeds the Line input on my SB Live! soundcard. I have been using this setup for several years, but in the past using Audacity with Windows XP. The problem exists only with the Linux version of Audacity.
Cool. Let's find out where it's going wrong.

Connect up your equipment and start playing a record, then open pavucontrol and look in the "Input Devices" tab.
If necessary, try selecting different option for the "SB Live! EMU10k1 Analog Stereo" device until you find the one with a meter dancing to the music.
A screenshot at this point would be good.
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Re: Records at high speed

Post by Ken Coburn » Wed May 21, 2014 5:57 pm

Screenshot.png
Screenshot.png (621 Bytes) Viewed 2085 times
The only inputs that work are the aforementioned SB Live! Line:0 input and spdif: Line:0
The info in the screenshot is the same for both inputs.

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Re: Records at high speed

Post by steve » Wed May 21, 2014 6:39 pm

The screenshot doesn't help much ;) but I presume that you mean that when you select "SB Live! Line:0 input" as the recording "Port" for the SB Live! EMU10k1 Analog Stereo Device you can see the meter moving with the music?

Open pavucontrol and ensure that "SB Live! Line:0 input" is set as the recording port.
Close pavucontrol.
Open Audacity and set both the Recording Input and the Playback output to "Pulse" and set the number of channel to "2 (stereo) Input Channels" in the device toolbar.
Start your record playing.
Press the Record button. You should see the waveform being recorded.

Record a short section, then press the Stop button.
Press the Play button. How does it sound?

If the sound is still breaking up, please post a short sample in WAV format to demonstrate the problem. Just 2 or 3 seconds will be enough.
See here for how to post audio samples to the forum: http://forum.audacityteam.org/viewtopic ... 49&t=72887
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Ken Coburn
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Re: Records at high speed

Post by Ken Coburn » Wed May 21, 2014 10:39 pm

Screenshot.png
Screenshot.png (35.8 KiB) Viewed 2072 times
The choices for the port are: Microphone/Microphone 1
Microphone/Microphone 2
Line in
Analog Input
Video
As shown in the attached screenshot, I have selected Line In

With Audacity set for an input of Pulse: Line;0 and an output of Pulse, no recording occurs. As mentioned previously, the only working inputs are SB Live!---------------Line:0 and spdif Line:0

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Re: Records at high speed

Post by steve » Thu May 22, 2014 2:22 am

Ken Coburn wrote:As shown in the attached screenshot, I have selected Line In
Was the meter below the two sliders moving with the music?
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Re: Records at high speed

Post by Ken Coburn » Thu May 22, 2014 5:46 pm

I assume the meter is the unoccupied bar below the sliders. There is no movement there with the audacity input set for pulse line:0. There is also no movement even when a recording is occurring with with the Audacity input set at Live! Line:0. The audacity meters show no input at pulse Line:0, and show normal activity at Live! Line:0.

Ken Coburn
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Re: Records at high speed

Post by Ken Coburn » Thu May 22, 2014 10:45 pm

sample .wav
(835.08 KiB) Downloaded 67 times

Here is an example of the problem.

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Re: Records at high speed

Post by steve » Fri May 23, 2014 1:12 am

I wrote:
steve wrote: Connect up your equipment and start playing a record, then open pavucontrol and look in the "Input Devices" tab.
If necessary, try selecting different option for the "SB Live! EMU10k1 Analog Stereo" device until you find the one with a meter dancing to the music.
A screenshot at this point would be good.
You replied:
Ken Coburn wrote:The only inputs that work are the aforementioned SB Live! Line:0 input and spdif: Line:0
I wrote:
steve wrote:I presume that you mean that when you select "SB Live! Line:0 input" as the recording "Port" for the SB Live! EMU10k1 Analog Stereo Device you can see the meter moving with the music?
You then wrote:
Ken Coburn wrote:I assume the meter is the unoccupied bar below the sliders. There is no movement there with the audacity input set for pulse line:0.
We clearly have a communication problem and I can't see your computer, so I'll have to defer to someone else.
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