Audacity Forum

Hi, as advised, I downloaded and installed Audacity 1.3, coming with DTMF Generator. Did some basic tests and would like use Audacity 1.3 as recorded DTMF audio input decoder, analyzing tool. Tried to select a part audio track for detailed analysis (spectral analysis ) as in Audacity 1.2 but failed ...

Thanks Steve,

forget 8 khz, 16 khz is audio file format for Asterisk's MOH, as verified by me.

Hi, I have the following problem. I call my 3G voice modem connected to laptop and can pick up a call by default app and can spead to mic of my mobile phone and hear a voice on Realtek's audio out to headphone. Unfortunately I don't know how to set such data stream as input into Audacity for voice a...

For Audacity 1.2.6 "Edit menu > Preferences > Audio I/O tab" Select "Play other tracks while recording new one". For Audacity 1.3.12 this setting is conveniently available at the bottom of the "Transport" menu and is called "Overdub". Thanks Steve, I would like to synchronise 2 audio inputs, one co...

Hi,

in Vista works a trick in Realtek to use Mixer stereo as audio input device
(setting Mixer stereo as default signal output device for recording purposes)

Not sure about Vista 7.
XP Windows was coming with audio mixer with all audio inputs + microphone.

follow-up finally got it correct MOH playable audio format is 16bit, 8000Hz, mono, 128kbps, pcm wav I am just generating a number of audio samples like sine, square, sawtooth to let me diagnose sound quality problems in my system. Please tell me what frequency range, amplitude, waveform to select fo...

Thanks Steve, I have uploaded MusicOnHold Asterisk playable file, coming with .wav extension http://www.filedropper.com/fpm-calm-river Maybe the issue is I am mixing Linux and Windows OS and u-law in Windows comes with .au extension so I export audacity recording as wav ( 8 bit pcm, 8000 Hz, mono to...

Thanks, looks to be a bit complicated to me " No it's not, but that does not prevent you from exporting as 8 bit. The "bit depth" part of the export format is set in "Edit menu > Preferences > File Formats > Uncompressed Export Format". The "Sample Rate" part of the export format is set by the "Proj...

WAV format specifies the sample rate (Hz), bit depth (usually 8, 16, 24 or 32 bit) and the number of channels (usually "1 channel mono" or "2 channel stereo"). "64 kbps" is a measure of "data rate" and is usually quoted with reference to compressed audio formats such as MP3. The data rate for a non...

Hi, I was told to record audio stream and save to wav file mono, 8000Hz, 64 kbs to be played by Asterisk MusicOnHold " Basically the wav files are a mono, 8000Hz sample rate, 64 kbs. " Does Audacity support this file save format ? If so, what option should be selected. == Having wav file opened with...