John - great - thank you. I'll try all of this. I don't think that its
print through because the issue is consistent. Chris B.
On 21/10/2020, John Gledhill <[log in to unmask]> wrote:
> Forgot to add - insert the measure delay into the start of the preceding
> channel
>
>
>
> I doubt it is a micro second -
> If the delay is constant here is what you can do
> Split the stereo track to mono
> use "analyze ->splot spectrum-and use the autocorrelation
> get rid of the grid
> if the delay is constant you should see a sharp peak
> export the date and you can zero in on the delay with the largest peak -
> artificially 0.1 second in the sample I sent.
> If the delay is not constant the peak will be smeared so pic the
> midpoint or throw one channel away or save it separately if it is
> smeared over too wide a time distribution
>
> On 10/21/2020 8:34 AM, Chris Brady wrote:
>> We are digitising some cassette tapes using Audacity.. A batch of them
>> are stereo, however they have exaggerated separation of the channels
>> (perhaps they need normalisation?), and one channel is a microsecond
>> behind the other. We don't actually need stereo, amd have tried to
>> merge the channels into mono. But this sounds dreadful - the speech
>> part sounds OK, but the music is very 'echo-ie).
>>
>> Another batch have delays from one channel to the other measuring in
>> seconds. How can we time-shift one channel to match the other one?
>>
>> Thanks - Chris B.
>>
>>
>
> --
> John Gledhill
> BIT WORKS Inc.
> 905 881 2733
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>
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