I’m using audacity 2.1.2 with Ubuntu 15.10. I installed Audacity from a ppa, today.
It records streaming audio properly but the playback is about 5X the proper speed. I had the same problem with the prior version of audacity in Software Center, so I updated to this 2.1.2 version. Oddly, the prior version always played at a high speed - this version does too, but sometimes it will revert in the middle of a playback to the correct speed. I haven’t messed with any of the settings on Audacity - it’s running just as it installed.
How do I fix this?
Playback has 7 options:
4 of them refer to HDA Nvidia (vid card sound) which run at apparently correct speed, but don’t result in sound coming through.
1 of them is a USB sound card I use for the mic, which runs at apparently correct speed, but no sound comes through.
1 of them is Pulse, which plays at 5x, and does feed sound.
1 of them is Default, which plays at 5x, and does feed sound.
Mostly, Pulse runs at 5x, sometimes in the middle of a playback it will change to correct speed.
I use an RCA cable to tap the green outlet from the audio on the desktop’s mobo and run it into an amplifier w/ the red and white plugs.
I have PulseAudio Volume Control installed. When I’m recording w/ Audacity, on Pulse’s Recording tab “monitor of built in analog stereo” has to be selected to get streaming audio recorded.
I don’t think there’s anything unusal in my setup - a standard fairly recent standard mobo, no sound card, just onboard mobo audio, and a run of the mill Ubuntu 15.10 o/s.
I’ve recorded a lot of audio w/ Ub 14.04 and some w/ this 15.10, but I’ve also had to deal w/ a number of problems under both o/s’.
From what you wrote, you don’t have any audio device showing which would correspond to the motherboard audio out you are connecting your amplifier to. Please connect your USB sound card then post or attach Help > Audio Device Info… top right of Audacity.
Also tell us what audio device you have selected on the “Output Devices” tab of pavucontrol.
Again, you don’t have an (hw: 0,x) analogue playback device listed there. If you did you could have selected it and bypassed pulse.
Have you attempted to configure the sound on this computer in any unusual ways? Supposing you connect your speakers to “USB Audio Device: - (hw:1,0)” and select that as playback device in Audacity. Does the recorded sound skip at 5x when you play it then?
I can record on either pulse line, then play back at 1x speed through the USB sound card, but I’d prefer using a normal approach through the mobo audio, otherwise I’m switching plugs around whenever I want to use Audacity to record something, and the cheap USB audio card I’m using is going to be lower quality than the mobo audio.
I am waiting on a sound card to be delivered, but there’s no guarantee that it will be compatible w/ Ubuntu 15.10.
One thing I haven’t mentioned, is that when I’m trying to use it, Audacity frequently goes gray (in Ubuntu) and stops doing anything, and I have to force a quit. There’s something bugged up here, and I wish there was a way to solve it.
You know how the computer was built, but older motherboard audio was often inferior even to cheapest possible USB audio.
The Ubuntu forums should have advised you on possible compatibility issues.
They might also be able to help you with ALSA configuration files so you could access the motherboard audio without going through pulse.
If you mean when playing, or when holding down transport buttons too long, that is the same pulse/Audacity issue that causes the intermittent rapid playback.