Mike,
Those BeyerDynamics are very good aren't they! Clearest ticking and
lowest noise, to my ears.
Vicki
On 03/09/2011, at 5:08 AM, Mike Rooke wrote:
> http://soundcloud.com/urlme/d50i-183-primo-dynamics-lev
>
> For web based playback and level matched.
> -M
>
>
> --- In "Mike Rooke" <> wrote:
>>
>> Engineering / "Gear talk"
>>
>> I recently purchased a pair of dynamic mics with the intention of
>> fitting them to a pair of custom made ears. - my findings with
>> regard to the latest (Primo), greatest (Shure 183) and handy
>> (Internal) electret mics vs the dynamics are rather interesting
>> and puzzling at the same time given the sensitivity and self noise
>> differences of the mic capsules.
>>
>> The following recording was made using the Sony D50 (EIN -126dBu)
>> set to max gain.
>>
>> In the order of appearance quoting the self noise in brackets.
>>
>> 1. Sony D50 Internal mics (20dBA)
>> 2. Shure MX391O - Capsules (22 dBA)
>> 3. Primo EM173 - (14 dBA going on 18+)
>> 4. BeyerDynamic - Dynamic Mic,
>> noise floor of the recorder is -126 dBu
>> Sensitivity is rated at -49.8 dB (3.2mV/PA in old money)
>> Self noise estimated at 94-(-49.8 -(-126)) = 17.8 dB
>> However in reality due to the 8dB presense "lift" they sounds far
>> lower.
>>
>> http://urlme.net/audio/D50i-183-Primo-Dynamics.flac
>>
>> Levels have not been matched for playback, they are as recorded at
>> max gain for each particular mic.
>>
>> The clock tick is extremely quiet.
>>
>> Comments welcome.
>>
>> Disclaimer: I understand dynamics may not capture "depth" as well
>> as electret condensors although Ive yet to prove this, they do not
>> fit to boundaries very well, handling noise vs electrets is FAR
>> higher, wind sensitivity is also higher - making practical use in
>> the filed interesting to say the least. Those recording in the
>> 70's-80's can probably give more feedback. For static / fixed
>> setups 'under the porch' that are humidity sensitive the dynamics
>> are proving to be much better than I expected relative to the
>> electrets.
>>
>> For the ear rig using lower sensitivity dynamics (1.6mV/PA) an
>> example can be found here:-
>> http://soundcloud.com/urlme/melow-binaural
>>
>> This recording features the BeyerDynamic mics (no ears) recording
>> ambience around 30dBA at the quietest level.
>>
>> The Beyerdynamics (TG-X-80) recording morning din:-
>> http://soundcloud.com/urlme/beyerdynamic-tg-x-80-sunday
>>
>
>
>
>
> ------------------------------------
>
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie
> Krause.
>
> Yahoo! Groups Links
>
>
>
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
------------------------------------------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/naturerecordists/
<*> Your email settings:
Digest Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/naturerecordists/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
------------------------------------------------------------------------
|