WWW.BAJISTAS.ORG

Pues eso. ¿Qué pensaís? Realidad o leyenda.

https://www.tonerite.com/products/bass- ... 1039540998

Compramos uno entre varias personas, nos lo vamos pasando y hacemos luego pruebas de doble ciego, a ver si somos capaces de escuchar diferencias

Chorradas, como casi todo lo que tiene que ver con los instrumentos "vintage", maderas mágicas, y similares.

no sé cómo funcionará con instrumentos sólidos, pero he visto algunas comparativas en acústicas en youtube y en todas se nota diferencia
dejo una aquí: https://www.youtube.com/watch?v=fDEh24mhQQQ

y esta de un bajo antes https://www.youtube.com/watch?v=1VwBzplLz8Y y después https://www.youtube.com/watch?v=BAf-yTpAE88

no sé decir si es mejor o peor, pero suena diferente. podríamos buscar explicaciones, pero algo hace.

El del bajo suena horroroso en cualquiera de las dos tomas...

contrabajo escribió:Compramos uno entre varias personas, nos lo vamos pasando y hacemos luego pruebas de doble ciego, a ver si somos capaces de escuchar diferencias

jajajaja ya me habían propuesto eso

dwtzs escribió:Con una visita al sexshop y un poco de bricolaje te apañas uno, y con mejor aspecto.

En un foro americano uno escribe que se ha hecho uno con el motor de un acuario jajajajaja

Venga ya! Menudo saca cuartos. Me suena a formula mágica para adelgazar 40 kg en una semana.

A mi la sensación que me da es que mata el brillo de las cuerdas, por eso suena más vintage.

Igual sale más barato cerrar un poco el tono

Anotherbassplayer escribió:Me suena a formula mágica para adelgazar 40 kg en una semana.

Póngame dos de esos, por favor.

Yo también noto diferencias en el tono en las comparativas de youtube, especialmente en instrumentos acústicos (aunque puede ser algo de sugestión), pero tampoco me queda claro que el sonido sea mejor, sólo es diferente.

En las demos (si no estan editadas) cambia el tono.
La teoria en la que se basa puede ser bastante lógica, otra cosa en la práctica.

Respondiendo a la pregunta: Mito.

Lo complicado de este tema es que se habla sobre percepciones/opiniones/creencias y eso es difícilmente discutible.

Cuando a este tipo de cosas les aportas datos y los haces cuantificables/medibles la cosa ya pasa del mundo de las creencias al mundo de las certezas. En este link hay un artículo científico dónde tratan este tema:

https://www.savartjournal.org/index.php ... oad/22/pdf

En este artículo cogen diferentes guitarras y hacen mediciones del antes y el después de aplicar estos tratamientos de vibración. Además combinan las percepciones con los datos cuantitativos, ponen a tocar las diferentes guitarras, con y sin tratamientos, a experimentados guitarristas.
Algunas de las cosas que se indican:

A. Player Evaluations
It was clear from their comments during the player evaluation tests that players had a hard time distinguishing which of the guitars had been treated. Comments such as “I am just guessing” and “this one might be the one that was treated” were common. This is also reflected in their lack of success in identifying the treated guitar....

For each of the three guitar pairs, five out of the nine players identified the incorrect guitar as the one that had been treated...

So it is clear that the players were unable to consistently identify which of the guitars had been treated, which suggests that they were unable to detect the effect of the vibration treatment on the sound of the guitar...

B. Physical Measurements
...So, in other words, the change in frequency response function due to the control treatment is indistinguishable from that due to the vibration treatment, and the difference in frequency response behavior associated with either the control or vibration treatment is less than or equal to the frequency response behavior differences between guitars of a matched pair...

Algunas de las cosas que indican en las conclusiones:

We performed player evaluations and physical property measurements on three matched pairs of guitars, before and after subjecting one guitar from each pair to a vibration treatment. We find no discernible difference in the changes due to this vibration treatment from those due to a control or “null” treatment. Players were not reliably able to tell which guitar of the pairs had been subjected to the vibration treatment - for each of the three guitar pairs, five out of the nine players identified the incorrect guitar as the one that had been treated. Statistical analysis of the evaluations
by the players on the five metrics of guitar tone showed no significant difference in the before and after changes due to either the vibration or control treatment. While there were differences in the averages of the metric scores, with the vibration treatment resulting in a decrease for four out of the five metrics, the 95% confidence intervals for both control and vibration treatment lie within the range of scientific irrelevance.
Changes due to the vibration treatment were also not discernible with our measurements of physical properties, despite the demonstrated sensitivity to measure the subtle differences between guitars of the same make and model as well as changes due to weather or a relatively short aging and playing time. Comparisons of the frequency response function for different guitars before and after treatment was made using the Pearson’s r correlation coefficient, and while it may be fair to say that the Pearson’s r correlation coefficient does not represent all the complexity of comparing the frequency response functions in Figure 4, and that the frequency response behavior in the graphs in Figure 4 does not represent the full complexity of a guitar sound, we maintain that these quantitative measures should exhibit significant changes if the guitar sound is influenced by a given treatment. Indeed, significant differences can be detected between matched guitars of the same make, model and year.

Saludos

Esto ya es un asunto bastante manido, pero siempre hay gente que se empeña en escuchar lo que no existe.

En muchas ocasiones he mencionado esta página del siglo pasado, Matrix-HiFi

http://matrixhifi.com/

Es un grupo de aficionados a la alta fidelidad que se dedican a desmontar mitos y tontunas.

Efecto placebo vamos