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Author Topic: rasping sound from reed before note plays  (Read 3060 times)

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boscaceoil

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rasping sound from reed before note plays
« on: January 09, 2008, 06:38:34 PM »

I hear an annoying rasping sound from some 'lower' notes on my meodeon just before the note plays - sounds like the reed has a soar throat!! Any advice on the cause of this or if I could attempt to solve it myself? I attach a short mp3 of the sound on alternating C/D notes on a hohner 4-stop. The file has been slowed down (30%) with audacity to emphasise the rasping. It is very obvious with three of the stops on the lower notes of the instrument and not so much with the 4th higher octave stop.

Regards,

Tom.
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george garside

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Re: rasping sound from reed before note plays
« Reply #1 on: January 09, 2008, 08:29:45 PM »

sounds like its been on a diet of mushy peas or baked beans but  might be valve trouble

george
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author of DG tutor book "DG Melodeon a Crash Course for Beginners".    Available on ebay as a 'buy now' item. Put in melodeon tutor book for full info.  Melodeon DG & BC and piano accordion tuition

DaveCottrell

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Re: rasping sound from reed before note plays
« Reply #2 on: January 10, 2008, 02:22:42 AM »

I agree. It sounds to me like you need valves replaced.
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Theo

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Re: rasping sound from reed before note plays
« Reply #3 on: January 10, 2008, 08:06:50 AM »

If the sound comes before the push note then the problem is the outside valve, if its before the pull note its the inside valve and you will need to remove the reedplate to change the valve. 

Another point is that changing the valve can make a slight change to the tuning, in practice you are only likely to notice a difference if the instrument is dry tuned.
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Theo Gibb - Gateshead UK

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george garside

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Re: rasping sound from reed before note plays
« Reply #4 on: January 10, 2008, 04:14:06 PM »

If the sound comes before the push note then the problem is the outside valve, if its before the pull note its the inside valve and you will need to remove the reedplate to change the valve. 

Another point is that changing the valve can make a slight change to the tuning, in practice you are only likely to notice a difference if the instrument is dry tuned.

? another advantage of 'wet' tuning!
george
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boscaceoil

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Re: rasping sound from reed before note plays
« Reply #5 on: January 10, 2008, 06:58:26 PM »

Many thanks all. Reading the previous post this is obviously a job for the luthier.

Regards,


Tom.
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